igo hatsuyo-ron - tsumego collections · the solution is always particularly reward-ing. i wish you...

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囲碁 発陽論 Igo Hatsuyo-ron

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Page 1: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

囲碁 発陽論Igo Hatsuyo-ron

Page 2: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

Motto

“It is a matter of life and death,a road either to safety or to ruin.Hence it is a subject of inquirywhich can on no account be neglected.”

— Sun Tzu: The Art of War

Preface

The notoriously difficult Igo Hatsuyo-ronwas compiled around 1710 by Inoue DosetsuInseki, fourth head of the Inoue house andfifth Meijin Godokoro. It was designed fortraining of the best students of the Inoueschool and was kept secret for a long time.

Igo Hatsuyo-ron consists of 183 mostly in-sanely difficult problems and is aimed atserious players with deep interest in thegame. While solving the problems takesmany months, possibly even years, finding

Page 3: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

the solution is always particularly reward-ing.

I wish you enjoyment and improvementin the wonderful game of go, weiqi, baduk,or whatever you like to call it.

Vít ‘tasuki’ BrunnerNovember 2006

Anniversary edition

It’s been 11 and a half years. This booklethas been downloaded over twenty thousandtimes. I never imagined the reach it wouldhave. The anniversary edition comes witha better layout and wording. The problemsare still crazy hard!

Vít ‘tasuki’ BrunnerJune 2018

Page 4: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++!+][+++++++@++@+!!!@@][++*+++++*++@@!@++][+++++++++++++@+@+][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++]

problem 1, white to play

<(((((((((((((((((>[+++++++++@!!+++++][+++++++++@@!+!+!@][++*+++++*++@@+*@+][+++++++++++++++++][+++++++++++++@+++][+++++++++++++++@+][+++++++++++++++++]

problem 2, white to play

Page 5: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++@++++++++][+++++++++@+!@@@+@][++*+++++*+++!!*!@][++++++++++@!+++!!][++++++++++@++!++@][+++++++++++@@@+@+][+++++++++++++++++][+++++++++++++++@+][++*+++++*+++++*++]

problem 3, white to play

<(((((((((((((((((>[+++++++++++++++++][++++++++++++++!++][++*+++++*++++!*!+][++++++++++++!++@@][++++++++++++++@++][+++++++++++++!@++][++++++++++++++@@+][++++++++++++!+!+!][++*+++++*+++++*!+][+++++++++++!+!+++][+++++++++++++++++]

problem 4, black to play

Page 6: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++@+!++++++][+++++!+!+@!@++!++][++*+++++*@!+!!*!+][+++++++!!@!@!@@@+][+++++++++@!@!@!!+][+++++++!+@@!+@+++][++++++++!++@@!!!+][++++++++++++!++++][++*+++++*!++++*++][+++++++++++++++++]

problem 5, black to play

<(((((((((((((((((>[+@+++!!!@++++++++][+@!!+@@!+@+@+++++][++@@!+++!!+!@+@++][+@++@+@+@++@+++++][++++++++@++++++++][+++++++++++++++++][+++++++++++++++++]

problem 6, white to play

Page 7: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((!(((((((>[+++++++++@!++@+!+][+++++++@@+!@!!!+@][++*+++++*+@+++@+@][++++++++++@!++@++][++++++++++@++@+++][+++++++++++@+++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++]

problem 7, white to play

<(((((((((((((((((>[++++++++++!+@+++@][+++++++++!@@+!+!+][++*+++++*!!@!@!++][+++++++++++@++@!+@[++++++++++!++!!@@][+++++++++++++@@@+][+++++++++++!++++!][+++++++++++++!+!+][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++]

problem 8, black to play

Page 8: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++++][++++++++++@@+++++][++*+++++*++++!@@+][+++++++++++@!@!@+][+++++++++++++@!!@][++++++++++++!!+@+][+++++++++++@+++++][++++++++++++@+@++][++*+++++*+++++@!+][+++++++++++++++++]

problem 9, white to play

<(((((((((((((((((>[++++++++++++@@+++][++++++++++@!@!!!+][++*+++++*++@++*@+][++++++++++@+!!!@+][+++++++++++++@@++][+++++++++++@+++++][+++++++++++++++++][+++++++++++++++++]

problem 10, white to play

Page 9: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<((((((((((((((((@>[+++++++++++++!@@!][++++++++++!!!+@!!][++*+++++*++@@@@++][++++++++++!+++!@+][++++++++++++!!+!!][+++++++++++++++++][++++++++++++++++!][+++++++++++++++++]

problem 11, black to play

<(((((((((((((((((>[++++++++++++++!!+][+++++++++++!+!++@][++*+++++*+++++@++][+++++++++++++!+++][+++++++++++++!+@@][++++++++++++++!+!][++++++++++++++!++][+++++++++++++++@!][++*+++++*+++++*@+][+++++++++++++++++]

problem 12, black to play

Page 10: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++++][++!+++!+!@@!!++!+][++*+++++!@+@@+@!+][++++++++!++++++!+][++++++++@!@@!+!++][+++++++++!++!++++][+++++++++++!+++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++]

problem 13, black to play

<(((((((((((((((((>[++++++++@+++!+++@][+++++++@++++@+!!@][++*+++++@@+!!!*+@][++++++++++@+@+@++][+++++++++++@++@++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 14, white to play

Page 11: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++++][+++++++!++@@!+@@!][++*+++++*!!+@@@!!][+++++++++++++!!!+][++++++++++++@+++@][++++++++++@++@@++][+++++++++++++++++][+++++++++++++++++]

problem 15, white to play

<((((((((((!@(((((>[+++++++!+!@+++++!][++++++++++@!+@!+@![++*+++++*!@+@+*@+][++++++++++!@!+!+!][+++++++++!++!+!++][++++++++++!++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++]

problem 16, black to play

Page 12: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++!+++++@@!+][++++++!+@+@@@!!++][++*++++!!+!+++*!+][+++++++++++@!++++][++++++++!++!+++++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 17, black to play (and die)

<(((((((((((((((((>[++++++++++++++++!][+++++++!!+@!+@@@!][++*+++!+*!@+@+!!+][++++++++++!+!++++][++++++++++!+++!++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 18, black to play

Page 13: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((@(((>[+++++++@+@+!!@!++][++++@!!+!@+@+!@@!][++*++@++*!!!@+*+!][++++@+++++++!@+!+][++++++++++++!+!@+][++++++++++++++!++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*!+][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 19, black to play

<((((((((((((@((((>[++++++++!++!!+@++][++++@+@@+!!++!+@+][++*+++++@@+@+!*++][++++++++++!@+++@+][++++++++++++@+@@+][+++++++++!+@++!++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 20, white to play

Page 14: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++++++++@++][+++++++!++!!!!+++][++*+++++*++@@@@++][++++++++++!++!+!+][++++++++++++!@+!+][+++++++++++++!+++][+++++++++++++++++][+++++++++++++++++]

problem 21, black to play

<((((((((((((@((((>[+++++++++!+!!+@++@[+++++++@@!+++!@+@][++*+++++*+!@+!@!!][+++++++++@+@+!!@+][+++++++++@++@+@++][+++++++++++++++@+][+++++++++++++++++][+++++++++++++++++]

problem 22, white to play

Page 15: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<((@@!!(((((((((((>[++@!!!++@@+++++@!][+++@!@+!!!@@@+@+!][++@+@+@+*!!!!+*!+][++++++++@++@+@+++][+++++++++@+++++!+][++++++++@++++++++][+++++++++++++++++][+++++++++++++++++]

problem 23, white to play

<(((((((((((((((((>[++++++++++!+++++@][++++++++++!++@!!@][++*+++++*++!+@!+!][++++++++++!@+@!@+][++++++++++!++@@!!][+++++++++!++!+@@!][+++++++++++++!!@!][+++++++++++++++@@![++*+++++*++@@!*@+][+++++++++++++!++!][+++++++++++@@++++][++++++++++++!@+!+][+++++++++++++++++]

problem 24, black to play

Page 16: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++!+++++++++][++++++++!+!!!+@++][++*+++++*@@@@@*++][++++++++!+++++!!+][+++++++++!++!++++][+++++++++++++++!+][+++++++++++++++++][+++++++++++++++++]

problem 25, black to play

<(((((((@!((((((((>[++++++++@!!++++++][+++++++@+@!+++!@+][++*+++++*@!+@+!@+][+++++++++@++++!@+][+++++++++++@+++@+][++++++++++!@+@+++][+++++++++++++++++][+++++++++++++++++]

problem 26, white to play

Page 17: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++!+++++++][+++++@+@@+!!+@!@+][++*+++++*+++!!@@+][++++++++@+@++!!!@][++++++++++++@@@+@][++++++++++++++!++][+++++++++++++++++][+++++++++++++++++]

problem 27, white to play

<(((((((((((((((((>[+++++++++@+@!!+++][++++++++++@!++@++][++*+++++*++++@*@+@[++++++++++@!@!!!!][+++++++++++@@!@++][+++++++++++@+!+@+][+++++++++@+++!+++][++++++++++@+@++@+][++*+++++*+++++@++][+++++++++++++++@+][+++++++++++++++++]

problem 28, white to play

Page 18: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<((((((((((((((!((>[+++++++++!@++@+++][++++++++++!@+@!++][++*+++++*+!@+!!++][+++++++++++!+++++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 29, black to play

<(((((((((@(((((((>[+++@++!@!+!@@!+++][+++++++!++!@!!+!+][++*+++++@!@@@!@@!][+++++++!+!!+@!!!@][++++++!+++++@@@@@][++++++++++!+!+++!][+++++++++++!+!+!+][+++++++++++++++++]

problem 30, black to play

Page 19: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++++++!!@!@][+++++++++++++@++@][++*+++++*@!+!@@+!][++++++++++++!++!+][++++++++++++++!++][+++++++++++++++++][+++++++++++++++!+][+++++++++++++++++]

problem 31, white to play

<(((((((((((((((((>[++++++++++@+!!+++][+++++++++++@@!++!][++*+++++*++++@*!@][++++++++++++@!@@+][++++++++++++++++@][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++]

problem 32, black to play

Page 20: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++!++!++][++++++++++++!@+@+][++*+++++*++++!@++][+++++++++++++!+++][++++++++++++++!@@][++++++++++++++!+!][+++++++++++++++++][+++++++++++++!!+!][++*+++++*+++++@+@][+++++++++++++++@+][+++++++++++++++++]

problem 33, white to play

<(((((((((((((((((>[++++++++++++@+!++][++++++++!+@++@+++][++*+++++*++!+!!!@][++++++++++@++++++][++++++++++++@@+@+][+++++++++++++++@+][+++++++++++++++++][+++++++++++++++++]

problem 34, black to play

Page 21: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((!(!(>[++++++++!++++!!@+][++++++@@@!!@!!+@+][++*+++++*@++!@@!+][+++++++++++@@@+@!][+++++++++++++++++][+++++++++++++@+!+][++++++++++++++@+!][+++++++++++++++@@][++*+++++*+++++*++]

problem 35, black to play

<(((((((((((((((((>[+++++++++++++++@!][+++++@++!+@!+@!@!][++*++++!@+@@+@!!+][+++++++++!+!@!+++][+++++++++!+!++!++][+++++++++++++!+++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++]

problem 36, white to play

Page 22: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++!@++++++!!@@+++][++!+@+@+!@++!++++][+!*!!+!!*!++!@@@+][++++++++++!++!!@!][++++++++++++++@!@][+++++++++++++++!!][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++]

problem 37, white to play

<(((((((((((((((((>[+++++++++++@+++++][++++++++++@+!!+!!][++*+++++*++@@@*@!][++++++++++++++++@][+++++++++++++@+@+][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 38, black to play

Page 23: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++!@][+++++++@@!!!!+++@][++*+++++*@+@!+!@+][++++++++@++@++@@+][+++++++++++++@+++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++]

problem 39, black to play

<(((((((((((((((((>[++++++++++@++++++][+++++++++@+!!+!++][++*+++++*+@@+@*!+][++++++++++++++@@+][+++++++++++++++++][+++++++++++++++@+][+++++++++++++++@+][++++++++++++++++@][++*+++++*+++++*++]

problem 40, black to play

Page 24: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++@!++++][+++++++++++@@@+!+][++*+++++*+++++*++][++++++++++++++@!+][+++++++++++++@+!+][+++++++++++++++!+][+++++++++++++@@+@][+++++++++++++++@+][++*+++++*+++++*++]

problem 41, black to play

<(((((((((((((((((>[++++++++++++++++!][+++++++++++++!!!@![++*+++++*+++++*+@![++++++++++++++!!@][+++++++++++++++@+][+++++++++++++!+@+][+++++++++++++!@++][+++++++++++++++!@@[++*+++++*+++!+*@!][++++++++++++++!+!][+++++++++++++++!+][+++++++++++++++++][+++++++++++++++++]

problem 42, white to play

Page 25: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((!((@>[++++++++++++@!+!+][++++++@+@+@++@!!!][++*+++++@++@+@*+@][+++++++++++++++@+][++++++++++++++@++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 43, black to play

<((((((((((((!(((!>[+++++++++++!@@++!@[++++++++++!+!+@+@][++*+++++*+++!+@+@][++++++++++++++++!][++++++++++++!+@@!][++++++++++++++!!+][+++++++++++++++++][+++++++++++++++++]

problem 44, white to play

Page 26: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++@@++++++][+++++++++@!!!!+++][++*+++++*!@@@@!!+][++++++++!@++++@!@][+++++++++++++@+@+][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++]

problem 45, black to play

<(((((((((((((((((>[++++++++!++++++++][+++++++!+@++@++@+][++*++++!*@+++!!!@][++++++++!+@@!+++!][+++++++++!+!+++++][+++++++++++!+++++][+++++++++++++++++]

problem 46, white to play

Page 27: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++!+][+++++++++++++!+!@][++*+++++*++++!*@+][+++++++++++++!@++][++++++++++++++!@+][++++++++++++++!@+][++++++++++++++!++][++++++++++++++!@@][++*+++++*+++++*!!][+++++++++++++++++]

problem 47, white to play

<(((((((((((((((((>[++++++++++++++++@][+++++++++++++@+@!][++*+++++*+++++!++][+++++++++++@+@+!+][+++++++++++++@!++][++++++++++++++++!][+++++++++++++@++@][+++++++++++++@!!!][++*+++++*++++@!@+][++++++++++++++@+@][++++++++++++++@++][+++++++++++++++++]

problem 48, black to play

Page 28: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<((((((((((((((!(@>[+++++++++++@!++++][+++++++++++@+!!!@@[++*+++++*+++@@*!!][++++++++++++++@++][+++++++++++++++@+][++++++++++++++++@][+++++++++++++++++][+++++++++++++++++]

problem 49, black to play

<(((((((((((((((((>[+++++++!++++++++!][+++++!++!+@@++@@!][++*+++++*+!@!@@!+][++++++++!!+@++!!+][+++++++++++++!@++][+++++++++!+@@@!++][++++++++++!+!++!+][+++++++++++++!+++][++*+++++*+++++*++]

problem 50, white to play

Page 29: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++++][+++++++++@+@+!+++][++*+++++*++@!+*!!][+++++++++++@++@@@][+++++++++++++@+++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++]

problem 51, black to play

<(((((((((((((!(((>[++++++++++@++@!++][+++++++++++@+@+++][++*+++++*++++!!+!][+++++++++++@@++@!][++++++++++++!+++@][++++++++++++!@+!@][++++++++++++++!@+][++++++++++++++!@+][++*+++++*+++++@++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 52, black to play

Page 30: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++++!+!@+++][++++@++!!!++@++++][++*@++@+*@+!@+*++][+++++++@++@@+++++][+++++++++@+++++@+][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 53, black to play

<(((((((((((((((((>[++++++++++!@+++++][++++++++++!!++@++][++*+++++*+!@@@*@+][+++++++++++!!!!!+][++++++++++++++!@@][+++++++++++++++!!][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++]

problem 54, white to play

Page 31: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<((((((((((((((@!(>[++++++!++++++!@++][++++++!@+!!!+@++@][++*@@@@!!++@@@*@+![++@+!++@+!+++@!!!][++@!+++@!++!!+@++][+++++++!+@@@+!@!+][+++++!+!@!++@!!++][+@++++!@@+++@!+++][++*++@!!@+++@!*++][++++!+++!@@++++++][+++++++++++!+++++][++++++!++++++++++][+++++++!+++++++++][+++++++++++++++++]

problem 55, white to play

<(((((((((((((((((>[+++++++++!@+++@!+][++++++++!!@+!!@++][++*+++++*!@+@@@++][++++++++++!!!!@!+][++++++++++++++!!@][++++++++++++!++!+][++++++++++++++++!][+++++++++++++++++]

problem 56, white to play

Page 32: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++@+][+++++++++++@+@@!+][++*+++++*+++!+!!+][+++++++++++@+@+++][+++++++++++@+@!++][+++++++++++++!!!+][++++++++++++@!@++][+++++++++++++@+@+][++*+++++*++++@*++][+++++++++++++++@+][+++++++++++++++++]

problem 57, black to play

<((((((((((((((@((>[++++++++++++@++++][++++++++++++@!++!][++*+++++*+++@+!+!@[++++++++++++++!+@][+++++++++++++@@++][+++++++++++++++!+][++++++++++++++@@+][+++++++++++++++++]

problem 58, black to play

Page 33: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++@@!+!@!+][++++++@++@!+++!++][++*+++++*@!+++*!+][+@++++!++@+++++++][+++++++!+++++++!!][+++++++@+!+!!!!@+][++++++++++@@@@@++][+++++++++!+++++@+][++*+++++*!+!+!*!!][+++++++++++++++++]

problem 59, black to play

<(((((((((((((((((>[+++++++++++!@!+++][++++++++++++++@++][++*+++++*+++!!@!+][+++++++++++++@+++@[++++++++++++!@+@@![+++++++++++!+!+!!][+++++++++++++!+++][+++++++++++++++!+][++*+++++*+++++*++]

problem 60, white to play

Page 34: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(@@@(!(((((((((((>!@@@!!@+!+++++++@+][!+!!@@++@+!@+++++]@@+!@++!+@+++++@!+][++!!@@!+!+!@++@+!][!@@@+@+!!+!@!!@+!][@+++@+!+@@@@+!@++][+@!!!!+@+!+++!+!+][!++@+!+@!+++!++!+][+@*+@@!+*!!+++*++][@+++++@++++++++++][+++++++++++++++++]

problem 61, black to play

<(((((((((((((((((>[+++++++++++!++!++][+++++++++++!@@++@][++*+++++*+++!@@@+][++++++++++++!!@!+][++++++++++++++!++][++++++++++++++++!][+++++++++++++++!+][+++++++++++++++++]

problem 62, white to play

Page 35: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<((((((((((((((!@(>[++++++++++++!++@!][++++++++++!+!@@@+][++*+++++*+++@+!+@][+++++++++++!+@@+!][++++++++++++!+++!][+++++++++++++!+!+][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++]

problem 63, white to play

<((((((((((((!(!@(@[++++++++++@+@!++@][+++++++++++@+@!!!][++*+++++*++++@*+!][+++++++++++++++@@][+++++++++++++@+++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++]

problem 64, black to play

Page 36: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<((((((((((((!!@@(>[+++++++++++@+@!!@][++++++++++@++@++!@[++*+++++*+++++@+!![+++++++++++++++++][++++++++++++++@+@][+++++++++++++++++][+++++++++++++++++]

problem 65, black to play

<(((((((((((((@(!(![++++++++++!+@!+!!][++++++++++++@+@@+][++*+++++*++!+!*@@@[+++++++++++!++!+!][++++++++++++++++!][+++++++++++++++++][+++++++++++++++++]

problem 66, white to play

Page 37: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<((((((((((((((((@![++++++++++++!@@@!![++++++++++++!!!++![++*+++++*+++++*@+![+++++++++++++!++@![++++++++++++++!!+@[+++++++++++++++@@][+++++++++++++!+++][++++++++++++++!+!][++*+++++*+++++*++]

problem 67, white to play

<(((((((((@@(@((((>[++++++++@!!!!@+++][++++++++@!@@+@+++][++*+++++@!@!!@*@+][++++++++@!@+@!+@+][++++++++@!+@@@!++][+++++++!@!@@@@!+@][++++++++!+!!@!+@+][+++++++++@++!+@++][++*+++++*++@++*++][+++++++++++@+@+++][+++++++++++++++++]

problem 68, black to play

Page 38: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((!@@@@@!(>[++++++@+!+!!@@@+!@[+++++++@+@+!!!+!@][++*+++++*@++++*@@][++++++++++@+@@+++][+++++++++++++++@+][+++++++++++++++++][+++++++++++++++++]

problem 69, black to play

<((((((((((@!!!!!@>[+++++++++@!!!!@@!@[+++++++!@!+++@@++][++*++++!@!!+@@*!+][++++++++!@@!++!++][++++++++++++!+!++][+++++++++++++++++][+++++++++++++++++]

problem 70, white to play

Page 39: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<((((((!(@!!!@@(@(>[+++++++@+!!@!++++][++++!!!@+!!@@+!+!][++*+++@!@!@+++!++][++++!+!+!@@+!!+++][++++++!!@!+!+++++][+++++++++!+++++++][+++++++!+++++++++][+++++++++++++++++][++*+++++*+++++*++]

problem 71, white to play

<(((((((!@@@@@@@!(![+++++@+!@@@@!!!@!][++++++@@!@+!@!+@@][++*+++++*!+@@!*++][++++++++@+@@!!@++][+++++++++!!!@@+@+][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++]

problem 72, black to play

Page 40: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++@+!+@@+++][++++++@@+@!@++@++][++*++@++!!@!!+@++][+++++@+@!@@@!@++@][++++++!!@@+@@!!++][++++@@@@!@!@!@@@+][+++++++!!@!@!!+++][+++++@++@!@!@+@@+][++*++++@*!@!+@*++][++++++++@+@+@++++][++++++++++@++++++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++],))))))))))))))))).

problem 73, black to play

Page 41: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++!+!+@!+!+!+!][++++++!+!@!+!@!++][++*++++@@!@@@+*!!][+++++!!!@!!!!+!@@][++++!+@@!!!!!!@!+][+++++++!@@@!@@@+!][+++++!+!++!@!+++!][++++++++!!+@!+!++][++*+++++*+++!+*!+][++++++++++!++++++][+++++++++++++++++][+++++++++++++++++]

problem 74, white to play

<(((((((!!!@@@@@@@@[+++++@++@@!@@!!@@@[++++++@@+!!@!!@!+@[++*+++++*+@!@!@@+![++++++++@@+!@!+++][++++++++++++@++@+][+++++++++@+@++@+@][+++++++++++++++++][+++++++++++++++++]

problem 75, black to play

Page 42: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

!!!((@@!!!@(!(!!(!!!!+++@@++!!@!++++!!!@!!++!!@!!@!+@!!@!@@!!@@+@!@@!+!+@@@![!+@!+@+!+!+!+@++!@[!@+!!@++++++@+!+!]!++++@+!+!+!+++++!![+!!+!++!+!+!@+!!@]!!@!@+++++!@!+++@!!!!@*@+@+!@@!@@!*@!!@+@@!+!+@!!!!!@+!!![++!@+++!@+!+@!!@!![++!++!+!!!@!@+++@![+!++!+++++@++!+!!@[!++++!++++@++!+++]@@!!++++!!!@!!+*+!]!+@!@@@@++@++++!++]!!!@@!!@!++!++++++]!!!!!!!!@@)))))))).

problem 76, white to play

Page 43: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++++++++@@@][+++++++++++++@!@!][++*+++++*++++@!!+][+++++++++++++++++][+++++++++++++@!++][+++++++++++++@!++][++++++++++++++@!+][++++++++++++++@!+][++*+++++*+++++@+!][+++++++++++++++@@][+++++++++++++++@+][+++++++++++++++++]

problem 77, black to play

<(((((((((((((((((>[+++++++!!++@+++++][+++++++++@+@@++@+][++*++++!*+!!!+*@!][++++++++!+++@+!!+][++++++++++++++++!][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 78, white to play

Page 44: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++!@++++][++++++++!+!!!++@+][++*+++++*+@+@@*++][++++++++++++!+@@!][+++++++++++++!!!!][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++]

problem 79, white to play

<(((((((((((((((((>[+++++++++++@!!+++][+++++++++++@+@+!!][++*+++++*++@++@@!][+++++++++++++@++@@[+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 80, black to play

Page 45: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((!(!(((>[++++++++++++!@@++][+++++++++++!+!@++][++*+++++*+++@+*++][++++++++++++!+@@+][++++++++++++!+++!][++++++++++++++!!+][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++]

problem 81, white to play

<((((((((((((((@((>[+++++++++++@+!@!+][+++++++++@+!!+@+!][++*+++++*+++++@++][++++++++++++!+@!!][+++++++++++++!!@+][++++++++++++++@@+][+++++++++++++++++][+++++++++++++++@+][++*+++++*+++++*++]

problem 82, black to play

Page 46: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++@!!+][+++++++++++++@@++][++*+++++*+++++*!+][++++++++++++++@!+][++++++++++++++@!+][+++++++++++++++!+][+++++++++++++@@+@][+++++++++++++++@+][++*+++++*+++++*++]

problem 83, black to play

<(((((((((((((((((>[+++++++++++++!+!@][++++++++++++++!@+][++*+++++*+++++!@+][++++++++++++++!@+][+++++++++++++++!@][+++++++++++++++!@][+++++++++++++++!!@[++++++++++++++++@][++*+++++*+++++!@+][++++++++++++++!++][+++++++++++++++!+][+++++++++++++++++]

problem 84, white to play

Page 47: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<((((((((((((((@!(>[+++++++++++++@@@!][+++++++++++++@!@!][++*+++++*+++++!!+][++++++++++++@@+++][+++++++++++++++++][+++++++++++++@!!+][+++++++++++++@++!][+++++++++++++++@@][++*+++++*+++++*++][+++++++++++++++@+][+++++++++++++++++]

problem 85, black to play

<(((((((((((((((((>[++++++++@+!@@++++][++++++!++!!!!@@@+][++*++++@@++!@!@!@][++++++++++@++!!!!][+++++++++++@+@+++][+++++++++++++@++@][+++++++++++++++@+][+++++++++++++++++][++*+++++*+++++*++]

problem 86, white to play

Page 48: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++!@+@][+++++++++++!+!+!+][++*+++++*++++!@++][+++++++++++!+@+@+][++++++++++++!!+@+][++++++++++++++!++][+++++++++++++++!+][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++!+][+++++++++++++++++]

problem 87, white to play

<(((((((((@(((((((>[+++++++!@++++++++][++++++++!@@++@@!+][++*++++!*!!@@!!+!][+++++++++++++++++][++++++++++!+!!+++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++]

problem 88, white to play

Page 49: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++++++@+@++][++++++++++++!@+!+][++*+++++*++@@!*++][+++++++++++@!+!+!][++++++++++++++@!+][++++++++++++@+@+@][+++++++++++++++@+][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 89, black to play

<(((((((((((((((((>[+++++++++++++++@+][++++++++++++@+!+@][++*+++++*+@+@!*!+][+++++++++++@!!+!+][++++++++++++@++!+][++++++++++++@+@@@][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++]

problem 90, white to play

Page 50: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<((((((((((((@((((>[+++++++++++!@+@++][+++++++++!++!+@!+][++*+++++*+++++@!+][++++++++++++!+@++][++++++++++++@!+!!][+++++++++++++++@+][++++++++++++++++!][+++++++++++++!+++][++*+++++*+++++!++][+++++++++++++++++][+++++++++++++++++]

problem 91, black to play

<(((((((((((((((((>[++++++++++++++@@!][++++++++++@+@++++][++*+++++*@!++!!!+][+++++++++++++++++][++++++++++@+!!@@+][++++++++++++!@+++][+++++++++++@++@++][+++++++++++++@+++][++*+++++*+++++*++]

problem 92, white to play

Page 51: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++++][+++++++++++++++@@][++*+++++*++++@*@!][+++++++++++++++!+][++++++++++++@!+!+][+++++++++++++@+@!][+++++++++++++++++][+++++++++++++++!+][++*+++++*++++@@!+][+++++++++++++++@+][++++++++++++++@+@][+++++++++++++++++]

problem 93, black to play

<(((((((((((((((((>[+++++++++++++++!+][+++++++++++@+@+!@][++*+++++*++++@!++][+++++++++++++@@!+][+++++++++++++@!!+][++++++++++++++@+@][+++++++++++++++++][++++++++++++++++@][++*+++++*+++++*++]

problem 94, black to play

Page 52: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++!+++++++@!+][++++++++++!+++@+!][++*+++++*+++@@*+@][+++++++++++!+!@!!][+++++++++!+!+!@!+][++++++++++++++!@+][+++++++++++++++++][+++++++++++++++++]

problem 95, black to play

<(((((((((((((((((>[++++++++++++++!+!][+++++++++++++!@!+][++*+++++*++++!@!+][++++++++++++!+@++][+++++++++++!@@+++][+++++++++++!@+!@@][++++++++++++@@!@+][+++++++++++!!@@!@][++*+++++*++++!!!!][+++++++++++++++++]

problem 96, white to play

Page 53: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++!!][+++++++++++++!+!@][++*+++++*+++++!@+][++++++++++++!+@@+][+++++++++++++!@!+][+++++++++++++++++][+++++++++++++!@++][+++++++++++++!+@+][++*+++++*+++++*@+][+++++++++++++!!+!][+++++++++++++++!+][+++++++++++++++++]

problem 97, white to play

<!(((!@@((@@!!((((![@++!+!!@!!@!@++@!][!!+!++!@++@!!+!++![@@@+@@!+*@@+++!@@][@+@++++@@@!+!+@!@][+@!+++!!+!!+!@@++][@+!+!+!@++@@@@++!][!!+++++@+++!!@+@+][+++++++++!+++!+++][+!*+++++@+++++*++][+!@+++++++++++!@!][+++++++++++++++!+][+++++++++++++++++]

problem 98, black to play

Page 54: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++@++++++!@+][+++++@++!++!+@!@+][++*+++++*+@@!!*@+][+++++++!!+!@+++@+][+++++++++@+@+!+++][++++++++!+++!++++][+++++++++!+!++!++][+++++++++++++++++]

problem 99, black to play

<(((((((((((((((((>[++++++++++++++++@][+++++++++++++@@+!][++*+++++*+++++!!+][+++++++++++++@++!][++++++++++++@+!+@][+++++++++++++++++][++++++++++++@@!++][++++++++++++++@@@][++*+++++*+++++*++][+++++++++++++++++]

problem 100, black to play

Page 55: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++@!!+][++++++++++@+@+!@+][++*+++++*++@!+!@+][++++++++++@+!++@+][+++++++++++@+@!@@][+++++++++++@+++!!][+++++++++++++++@@][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 101, white to play

<(((((((((!@((((((>[++++++@!!@++@@+++][++!+++@!@++@+++@+][++*++!!+@!!!!+*++][+++++++@+!@++++@+][+++++@@+!@+@++@++][++++++!!@@+++@+++][+++++++@!@+++++++][++++++!!!!+++++++][!+*@++++*+++++*++][+!!!!+!++++++++++][+@+++++++++++++++][+++++++++++++++++]

problem 102, white to play

Page 56: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++++@!+++++][++++++++@+@!++!++][++*+++++*+@+++*++][+++++++++++@+@!++][+++++++++++++@+@+][+++++++++++++++@+][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++]

problem 103, black to play

<(((((((((((((((((>[+++++@+!+!@++++++][++++@++++!@+!!++!][++*+++@+*!@!@+*@@][+++++++++!@@@!!!@][++++++@+@@!!!++@+][+++++++++!@++!@++][+++++++++++++++++][+++++++++++++++++]

problem 104, black to play

Page 57: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++++][++++++++@+@++!+++][++*+++++*+@!++*@+][+++++++++!++!!!@+][++++++++!++@!@+!@][+++++++!+@@+@!+!@][++++++++++++@@@!@][++++++++!+!+++!@+][++*+++++*++!+!*@+][+++++++++++++++++]

problem 105, white to play

<(((((((((((((((((>[+++++++++++@+!+++][+++++++++++++!+@@][++*+++++*+++@@*@!][++++++++++++++!@!][+++++++++++++!+!+][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++]

problem 106, white to play

Page 58: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++@+!+@+][++++++++++@!++!++][++*+++++*+@!+!@@+][+++++++++++@+!+++][+++++++++!++++@++][+++++++++++@@@!@@][++++++++++!+++!!+][+++++++++++!+!+++][++*+++++*+++++*++]

problem 107, white to play

<(((((((((((((((((>[+++++++++++++++++][++++++++++@++++++][++*+++++*++@+@@+!][+++++++++++++@!!@][++++++++++++++++@][+++++++++++++!+!+][++++++++++++++++!][+++++++++++++++++]

problem 108, black to play

Page 59: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<((((((((((((((!(@>[++++++++@++++@++@![+++++++++@+!+@!!!][++*+++++*+++!@@!+][+++++++++++@@!++@][+++++++++++++++!@][+++++++++++++++!@][+++++++++++++!+!@][+++++++++++++++++][++*+++++*+++++*!+][+++++++++++++++++]

problem 109, black to play

<((((((((((((((@!(>[++++++++++++@@!!+][+++++++++++@+!@!+][++*+++++*+++++*@+][+++++++++++++!@++][+++++++++++++!@!+][+++++++++++++@!++][+++++++++++++@!++][+++++++++++++@@!+][++*+++++*+++++*++]

problem 110, black to play

Page 60: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++@+++][++++++++++++@++@@][++*+++++*++@!+!!!![+++++++++++@!++@@][++++++++++++@+!++][++++++++++++++!@+][++++++++++++++!++][+++++++++++++!@++][++*+++++*++++!*!+][+++++++++++++++++][+++++++++++++++++]

problem 111, black to play

<(((((((((((((((((>[+++++++++!@++!+@@][+++++++++!@+++@!!@[++*+++++*!+@++@@!][++++++++++!!+!+!+][+++++++++++++!++!][+++++++++++++++++]

problem 112, black to play

Page 61: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++!@++][+++++++++++!+!!@+][++*+++++*+++!@@!!][+++++++++++!@++@+][+++++++++++++@+++][+++++++++++++++@+][+++++++++++++++++]

problem 113, black to play

<(((((((((((((((((>[+++++++++++@!++++][+++++++++++@@@!!+][++*+++++*@@!!!@@+][++++++++++!@+++@+][+++++++++@++!++!+][+++++++++++++++!@][+++++++++++++!+!!][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++@+][+++++++++++++++++][+++++++++++++++++]

problem 114, black to play

Page 62: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++++][+++++++++++!+!@++][++*+++++*++!+!*@+][++++++++++++@@@!+][++++++++++++++!!+][++++++++++++@+!@+![++++++++++++@+!@@][++++++++++++++!!@][++*+++++*++++@*@+][+++++++++++++++@+][+++++++++++++++++]

problem 115, white to play

Page 63: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((!@@!((>[++++@+!+++++!@!@+][++++@+!@+@!@@@!++][++*++++!!+++!@!+@][+++++@+@+@!+@+!@+][+++++++@+@+!!!!@+][++++++++++@@@++@+][+++++++++++++++++][++++++++++++!++!@][++*+++++*+++!@*@+][++++++++++++!+!+@][+++++++++++++!++@][+++++++++++++++!!][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++],))))))))))))))))).

problem 116, white to play

Page 64: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++@+++@!!@@@@!][++!+!!@@++@!!+++@][+!*+++++@+@+!!!!+][+++++!+!++@+@!++!][+++++++++!++@+!!!@[+++++++++++@!@+@@![++++++++++!!!++++][++++++++++++@++@+][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++@+][+++++++++++++++++]

problem 117, white to play

Page 65: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++++@+++!++][+++++++@@+@!!!@!!][++*+++++!@!@@@@!@][++++++@+!!!!++@!!][+++++++@++++!+@@@][+++++++++@+@@!+++][+++++++++++++@!!+][++++++++++++++@!+][++*+++++*+++++*@!][+++++++++++++++++][+++++++++++++++!+][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++],))))))))))))))))).

problem 118, black to play

Page 66: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+@!++++++++++++++][++@!@+!@+!@!@++++][+@*@++!@@!@!++*++][+++++@@!@@!++++++][+++++++!!!+!+++++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 119, black to play

Page 67: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((!@>[++++++@!!+@!++++!][++++@+!+++@++++!+][@!*+++++!+@+!!*++][+@@+@++++!@@+@@!!][@+!+!++++++@+@!++][!!!++!!++!!+!@+++]!++@++++++++++@@@@@[++@+++!++!+@@@@+!!@!!*+@+++!+@+!!!!+]@++!@++++!+@++!++@@@++!@+++@!+++++@@!!@@++@++!+!++++++@@![!!@!@+++!++@+!++!![+@++@++++@+++@+!!!!@@*@++!+*!!!+!@!+@[+++!@+++++++++@@!@!+@+++++!+++!@!@++],@))))))))))!@@@)).

problem 120, black to play

Page 68: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++!+@+++!@][++++++++!+!@!++!@][++*+++++*+@@++*+@][+++++++++!+!++!@+][++++++++++++!+!@+][++++++++++++++!++][+++++++++++++++++][+++++++++++++++++]

problem 121, black to play

<(((((((((((((((((>[+++++++++++++++++][++++++++++!!+!@@+][++*+++++*!+@+!*!@][+++++++++!@+@!+!@][++++++++++@+@++++][+++++++++!!!@!!@+][+++++++@+@@@!@@@+][++++++++++++!++++][++*+++++*@++++*++][+++++++++++!+++++][+++++++++++++++++]

problem 122, white to play

Page 69: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++@@][++++++++++++++@!+][++*+++++*+++@+@!+][+++++++++++++++!+][+++++++++++++@!++][+++++++++++++@!@@][+++++++++++++@!@!][+++++++++++++!@@!][++*+++++*++++!@!@][++++++++++++++!!!][+++++++++++++++++]

problem 123, black to play

<(((((((((((@((@(!>[++++++++++!!+@!!!][++++++++++++!@@@@][++*+++++*++!+!*+!][+++++++++++++++!+][++++++++++++++!++][+++++++++++++++@+][+++++++++++++++++][+++++++++++++++@+][++*+++++*+++++*++]

problem 124, black to play

Page 70: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++++++!@@++][+++++++++++!@+!!!][++*+++++*+++@+!@!][++++++++++!++++@@][+++++++++++!@@+++][+++++++++++++++++][+++++++++++++!@@!][++++++++++++++!+!][++*+++++*+++++*!+][+++++++++++++++++]

problem 125, white to play

<((((((((((((((((@>[+++++++++++++@+@!][++++++++++++++@!+][++*+++++*++++@!!+][+++++++++++++@+++][++++++++++++++!++][+++++++++++!++!@@][++++++++++++!++++][+++++++++++!@@@@!][++*+++++*++!++*++][+++++++++++++!+!!][+++++++++++++++++]

problem 126, black to play

Page 71: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++++++++!++][++++++++++++!++@@][++*+++++*+++++!!+][+++++++++++++!+++][+++++++++++++!@!!][+++++++++++++@@@@][+++++++++++++++++]

problem 127, black to play

<(((((((((((@((((@>[+++++++++@+!@!+@!![++++++++++@++++@@![++*+++++*+@!!!*!+![++++++++++@+@++@+][++++++++++++!+!++][++++++++++++++++!][+++++++++++++++++]

problem 128, black to play

Page 72: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++!+@+!!++@!][+++++++!@+@!@@+@!][++*++++!*++!++*!+][+++++++++@!++@@!+][+++++++++@@+@++!+][+++++++++++++@!++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++]

problem 129, white to play

<(((((((((((((((((>[+++++++++++++++++][+++++++@@@!!+@+!+][++*+++++*!!+@+!++][+++++++@@++@+++!+][++++++++!@+++++++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++]

problem 130, white to play

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<(((@(((((((((((((>[++@!+++++++++++!!][++@!@@+++++++!!!@][!@!!++++!++!+!@@+][+@!+@++++++!+++@+][+@!+++++++!+@@@!!][@@!++++++++++!@@+][+++!@@++++!+++!@+][!!!++++++++!+!+@+][+!@@++++*++!@@@@+][+@!!@+++++++!++@!][+@+@+++++@+++!!!!][!+!@++++++@@+@@@+][++!@+++@++++++!++][+!@@+@++@+@+@+!@+![!!!++!!@!!++++!+@]!@@++@!@+@!+++@!@+][!@++!!+++!@+!!!@!],)))))))))))))))!).

problem 131, white to play

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<(((((((((((((((((>[+++++++!+!!+!+!!!][++++++++++@!+!@@@][++*++@++@++++!*++][++++++!+++++@@@@!][++++++++@++++++!!][+++++@+@++@+!+!+@][+++++++++++@+++@+][+++++++++++++@+@+][++*+++++*+++++*!!][+++++++++++++!+++][+++++++++++++++++]

problem 132, white to play

<(((((((((((((((((>[+++++++++++++++++][+++++++++++!!!+!!][++*+++++*+@+@+*@@@[++++++++++@!+@+@!][++++++++++++@++@!][++++++++++@+!+!!+][+++++++++++@++@+!][++++++++++++@++@+][++*+++++*+++++*+@][++++++++++++++@!+][++++++++++++++!!+][+++++++++++++++++]

problem 133, white to play

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<((((((((((((((@@!>[++++++++@!!!!+@!+][++++++!+@@!@@@+!+][++*++!++*+!+++!++][+++++!@+@+++@+!++][+++++!!+++!@+++!+][++++++++@@++++@++][++++++++++@+@++++][+++++++++++++++++]

problem 134, white to play

<(((((((((((((((((>[++++++++++++++@!+][+++++++++++!++!!!][++*+++++*+!++@@@!][++++++++!++!@!+@@][++++++++++@+++++@][+++++++++++!++!+!][+++++++++++!+++!@][+++++++++!+@+!+@@][++*+++++*+@+@+@++][+++++++++++++++++]

problem 135, black to play

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<(((((((((((((((((>[++++++++++!++++++][++++++++!@+++@+++][++*+++++*+!!!+*++][++++++++++!@++++@][++++++++++!@+@@++][+++++++++!+@++!!!][+++++++++++@++++!][+++++++++!!@!!!!@][++*+++++*++!@+*@@][++++++++++++@+@++][+++++++++++++++++]

problem 136, white to play

<(((((((((((((((((>[+++++++++++++++!+][++++++++++++!!+!+][++*+++++*+@!+@*@@][+++++++++!!+@++++][++++++++!++@+++!+][++++++++++++++@!!][++++++++++@+++!!@][+++++++++++@++++@][++*+++++*++@++*@+][++++++++++++@+@++][+++++++++++++!!!+][+++++++++++++++++]

problem 137, white to play

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<(((((((((((((((((>[+++++++++++++++++][++++++!++!++!+@++][++*+++++*+++++*@+][+++++++++++@++@++][+++++++++!!@!!@++][++++++++++@!!@+++][++++++++@+@++!@@+][++++++++++@!++!!+][++*+++++*+++++*++][+++++++++++@+@+@+][+++++++++++++@+++][+++++++++++++++++]

problem 138, black to play

<(((((((((((((((((>[++++++++!@@!!@@++][+++++++++@!++!+@+][++*+++!!*@++++@++][++++++++@+@!++!@+][+++++++!++@+!++@+][+++++++++!++++!++][+++++++++!+!+!@@+][+++++++++++++++++][++*+++++*++++@*@+][+++++++++++++++++]

problem 139, black to play

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<(((((((((((((((((>[+++++!@!+!++++@++][++++++++@!+!@++!+][++*++++@!!@!@+*++][++++++++@+@@!+!++][+++++++++@+!!++!+][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 140, black to play

<((((((((((((((((!>[+++++++@+++@+++!!@[+++++++++@@+@@@@!][++*+++++!!!+++!!!@[++++++++++++!@+@@][++++++++++++!+@++][+++++++++++++!+@!][+++++++++++++++!@][+++++++++++++++@+][++*+++++*+++++*++]

problem 141, white to play

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<(((((((((((((@(((>[+++++++++++!!!@@@@[+++++++++!++!@!!!][++*+++++*++@@@@++][+++++++++++++++!+][+++++++++++++++++][++++++++++++++@!!][+++++++++++++++@+][+++++++++++++++@+][++*+++++*+++++*!!][+++++++++++++++++]

problem 142, black to play

<(((((((((((((!!@(>[+++++++++++++!@+@][++++++++++@@+!@++][++*+++++*++++!!@@][++++++++++++@++++][++++++++++++++@++][+++++++++++++!!!+][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++]

problem 143, white to play

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<(((((((!((((((!((>[++++++!@!++++!@+@][+++@++!@!!!!+!@++][+@*++++@@@@@++@++][+++++@!+!++++++++][++++++!+++!+!++@+][+++++++++++++!+++][+++++++++++++++++][+++++++++++++++++]

problem 144, black to play

<((((((((((((((@((>[++++++++++!!!+!@+][+++++++@!+@@++!@+][++*+++++@!++@!!@+][++++++++++@+@!@++][++++++++!++!!++@+][+++++++++!+++!+++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++]

problem 145, black to play

Page 81: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++++@++@+++][++++++!+++@++@+@+][++*+++++!!@++!!@+][+++++++++++!!@+@+][+++++++@+!++!!!++][++++++++@!+@++++@][++++++++@+++@+@+!][++++++++++@@+++!@![++*+++++*+++++*!+][+++++++++++++++++]

problem 146, white to play

<(((((((((((((((!(![+++++++++++!+!@+!][+++++++!+!+!@+@@@@[++*+++!+@++++!*+!][++++++++@!!!@@@@+![++++++++!@@+!++!!][+++++++++@+!+++++][+++++++@++@++!!!+][++++++++++++@+@++][++*+++++*+@++@*!+][+++++++++++++++!+![+++++++++++++++@!][++++++++++++++++@][+++++++++++++++++]

problem 147, black to play

Page 82: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++@!+!!+++++][+++++++@!+@!!!++!][++*+++++*+@@@@!!@][+++++++@+!+++@+@+][+++++++++++@+!+!+][++++++++++!!!++++][++++++++++++++@++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++]

problem 148, black to play

<(((((((((((((((((>[++++++++++++!+!@@][++++++++++@@!+!++][++*+++++*++!@@@+@][+++++++++++!+++!+][+++++++++++!+@+!+][+++++++++++!@++++][+++++++++++!@++!+][+++++++++++!@+@++][++*+++++*+++!+*++][+++++++++++++++++]

problem 149, white to play

Page 83: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++!+@+][++++++++@+++++!+!][++*+++++*@++!!@+@][++++++++++++@@++!][++++++++++!+@+!@@][+++++++++!+@!!!@+][+++++++++++@!@@++][++++++++++@++!++@][++*+++++*++@++!++][++++++++++++@@+@!][++++++++++++++@+@][+++++++++++++++++][+++++++++++++++++]

problem 150, white to play

<(((((((((((((((((>[++++++++++++@++++][+++++++@++@+@+@!+][++*++@++@+@+!!@!+][+++++++!@+!!+++++][++++++@++++!+@!++][+++++++++@@!@++!+][+++++++!!+!@@!@!+][++++++++++!!+@+!+][++*+++++*+++++*++][+++++++++++++@+++][+++++++++++++++++]

problem 151, white to play

Page 84: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++!+++@+][+++++++++++++@+@+][++*+++++*+!+@+!++][++++++++++++++!++][+++++++++!!@@@+@+][++++++++++++!!!!@][++++++++++@+++@!!][++++++++++++@+@++][++*+++++*+++++*@@][+++++++++++++++++]

problem 152, white to play

<(((((((((((((((((>[++++++++!+@!++++!][++++++++!+@@!!!++][++*+++++*!+@!+@@!][+++++++++++@!@+!!][++++++++++!+@@+++][+++++++++++++++++][++++++++++@+!++!+][+++++++++++@+!!@+][++*+++++*+++@@@+@][+++++++++++++++++][+++++++++++++++++]

problem 153, black to play

Page 85: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((@(((((>[!++++++++@@!@@+@@][+!+!!+!+@!!!!++++][++@++++@*++++@@@!]@++@+@+@+!+!!@!+!+][@+++@+++++@+++@+!][+!+!!!!!!!+++++@!]@@!++@+@+@+++@+@!+][!@!!@++@++++@!@!+][+@*+@+++@@!!++*!!][@++@++@!!!+++@++@@[+++@@!!+++++++@++]!!!!!!++++++!!!@+@][@++@!!!!!+++@!!!+][+@+@++@@++@++++++]@++*@+@++@@++@+*!+@@+!!+++@+!!+!+@+!+@[!++!!+@!!+++!+@+@],@)@))@)!))))))))).

problem 154, white to play

Page 86: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(!@((@(((((@(@(@@>[!!++++++++++++++@!@++@@++++++++!++++![++!+++++*+++++*++]@++!++++++++++++++][@+@++++++++++++++][+!+++@+@+++++++++]@+@+!!!!!+++++++++@[@!@!+@+++++++++!+]!++*!@+++*+++++*++@[!+@!@+++!!+++++++]@++@!+@+!@+@++++++][++++!@!@+@+++++++][+@!@!!@++++++++++][!@+@+@+@+++++++++]@+!@!++++*+++++*++@[+!!!+++++++!+@!++]@++++++++++++@+!++]@)@@)@)))))@)@!)@)@

problem 155, white to play

Page 87: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++++++++@!+][++++++++++!+!@@+@][++*+++++*++@!!@++][+++++++++++++!@!!][+++++++++++++++!+][++++++++++++@@!+@][+++++++++++!++!++][++++++++++++@+!+@][++*+++++*+++@!@++][+++++++++++++@+@+][+++++++++++++++++]

problem 156, white to play

Page 88: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++++][+++++++++++!!+!@+][++*+++++*+++@@!++][+++++++++++++@+@+][++++++++++++++@!!][+++++++++++++!!@@][+++++++++++++++++][+++++++++++++++@+][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++],))))))))))))))))).

problem 157, white to play

Page 89: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++@+@+++][+++++++++@++++@@@][++*+++++*++++!*!!][++++++++++@+@++@!][+++++++++++!!!@@!][+++++++++++++@+!!][+++++++++++!+@+@+][+++++++++++++++@+][++*+++++*+++++*++][+++++++++++++++++][++++++++++++++@@+][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++],))))))))))))))))).

problem 158, white to play

Page 90: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++++][+++++++++@@+++!++][++*+++++*!+@++*++][+++++++++++++@+++][+++++++++++++@!!+][+++++++++++!+!@+@][+++++++++++++!@+@][+++++++++++++@!!+][++*+++++*++++@*++][++++++++++++@++!+][++++++++++++++!++][+++++++++++++++++]

problem 159, black to play

<(((((((((((((((((>[++++++++++++!!+!!][++++++++@+++@+!@@][++*+++++*@++++@!!][+++++++++++@++@++][+++++++++@@!!++@+][+++++++++++!+!!!@][++++++++++@+@!+++][++++++++++@++@@++][++*+++++*+++++!@+][+++++++++++++++++]

problem 160, white to play

Page 91: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++@@!+][++++++++++!+!++!+][++*+++++*++++@@!+][+++++++++++!+!@!+][+++++++++++++!+++][++++++++++++++!@@][+++++++++++++++!@][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++@+][+++++++++++++++++]

problem 161, black to play

<(((((((((((((((((>[+++++++++++++!!@+][++++++++++++!+@@@][++*+++++*+++!@+!!][+++++++++++!+!@++][+++++++++++++++!+][++++++++++++@++!+][+++++++++++++@++@][++++++++++++++@+@][++*+++++*+++++*++]

problem 162, black to play

Page 92: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++++@++!+++][++++++++@+@!!+@++][++*+++++*+!@!+@++][++++++++!+!@+++++][++++++++++!+++@++][+++++++++++@+!+@+][+++++++++++++++++][+++++++++++@+!+++][++*+++++*++!++*++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 163, white to play

<(((((((((((((((((>[+++++!+++!+@+@!++][+++++@!!++!@+@+!+][++*+++@+*+!@+@!++][+++++++++@@!!!+!+][++++++++++++++@!+][++++++++++++!@+@@][+++++++++++++++++][+++++++++++++@+++][++*+++++*+++++*++][+++++++++++++++++]

problem 164, black to play

Page 93: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++++][++++++++++@@+++++][++*+++++*+@!!!*++][+++++++++@!@@@!@+][++++++++!!!+++@!+][+++++++++++@++@!+][+++++++++++++++!+][+++++++++++++++++][++*+++++*++@++*!+][+++++++++++++++++]

problem 165, white to play

<(((((((((((((((((>[+++++++++!++++!+!][++++++!+!+@@@@+!@][++*++++@*!!@!+!@+][+++++++++@+!!+!@+][+++++++++++++!@@+][++++++++++@+!@!@+][++++++++++++@++++][+++++++++++++++++][++*+++++*+++++*!+][+++++++++++++++++]

problem 166, black to play

Page 94: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++++][+++++++++++!+!+++][++*+++++*+++++@+@][+++++++++++++@+!+][+++++++++++++@@!+][+++++++++++++@!!+][++++++++++++@!@+@][++++++++++++!!@+!][++*+++++*+++++*+@][+++++++++++++++++]

problem 167, white to play

<(((((((((((((((((>[+++++++++++++++++][++++@++++++++@!++][++*+++++*+@@+@!+!][++++++++@+!!!!@++][+++++++++!@@@++@+][+++++++++@++@!!@+][+++++++@+++++@!+!][+++++++++++@++!++][++*+++++*+++@+*++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 168, black to play

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<(((((((((((((((((>[+++++++@+++!!!+++][+++++++++@@@@!@@+][++*+++++*!+++@!+@][+++++++++++!+++!+][+++++++++++++++!+][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++]

problem 169, white to play

<(((((((((((((((((>[+++++++++!!!+@@++][+++++++++@@++@!+!][++*+++++*++!!!@!+][+++++++@+@++@+@++][+++++++++++++!+++][++++++++++@++++++][+++++++++++++++++][+++++++++++++++++]

problem 170, white to play

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<(((((((((((((((((>[+++++++++++++@+@+][+++++++++!++!!@+@][++*+++++*++++@!+@][+++++++++++++@!!!][+++++++++++++!@+!][+++++++++!+!++@@!][+++++++++++@!++@+][+++++++++++++++@+][++*+++++*+++++*++][+++++++++++++++++]

problem 171, black to play

<(((((((((((((((((>[+++++++++++++@!!+][++++++++++!!+@+++][++*+++++*++@+@!!+][+++++++++++++!@@+][++++++++++++!++++][+++++++++++@@++@+][++++++++++@!++!@+][+++++++++++++++@+][++*+++++*+@++!*++][+++++++++++++++++][+++++++++++@+++++][+++++++++++++++++]

problem 172, white to play

Page 97: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++!!+!++][+++++++++++@++!+!][++*+++++*++++@*@!][+++++++++++@+++@@][++++++++++++++!++][++++++++@+++@+!@+][+++++++++++!+@@!+][++++++++++++!++!+][++*+++++*+++++!++][+++++++++++++++++]

problem 173, white to play

<(((((((((((((((((>[+++++++@+@@!!+++@][++++++++!@!@@!!++][++*++++@@!!+@+*+@][+++++++++++++++!@][+++++++++++++!@+@][++++++++++!+!+@++][+++++++++++++++++][+++++++++++++++++]

problem 174, black to play

Page 98: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+++++++++++++++!!][++++++++++++!+!+@][++*+++++*++++!@@+][+++++++++++++!+++][++++++++++++@++++][++++++++++++++@++][+++++++++++@@@!++][+++++++++++@!!!++][++*+++++*++@!@@@+][++++++++++++@!++!][+++++++++++++!+!+][+++++++++++++++++][+++++++++++++++++]

problem 175, white to play

<((((((((((@((((((>[+++++++!+@!!++@++][+++++++++@@!!++++][++*+++!!@@!+++@++][++++++++@!+++!@@+][+++++++!+@!++@!++][+++++++++@!+!++++][++++++++!+@!+++++][+++++++++!++!++!+][++*+++++*+++++*++]

problem 176, black to play

Page 99: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++++@++++++][+++++++++++++@+@+][++*+++++*+!@++*@!][+++++++!++!+!+!@!][+++++@+++@++++@!!][+++++++!+++!++!@+][++++++++++++++!@+][++++++++++++++!@+][++*+++++*+++++@++][+++++++++++++++@+][+++++++++++++++++]

problem 177, black to play

<(((((((((((((((((>[+++++++++@+@!!!@+][+++++++++++@@!+@+][++*+++++*+!+@!@++][+++++++++++!!@!++][++++++++++++@++++][+++++++++++++++++][+++++++++++!+!+++][+++++++++++++++++]

problem 178, black to play

Page 100: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[+!+@+!+!+@+++++++][!+@++!@!+++++++++][+!*@+++!*@++@!*!!][!@!!!@!!!@!++++@+][!@@+@@!+@++++++++][@++!++@+@++++++++][@!@++@+++++++++++][++!++++++++++++++][++*@+++@*+++++*++][+++++++!+++++++++][+++++++++++++++++][+@+++++++++++++++][+++++++++++++++++]

problem 179, black to play

Page 101: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++!+++@++++][++++++@@++!!!@@@+][++*+++++@+++@!!+@][+++++++++@@!+++!+][++++++++++++++++@][+++++++++++!+++!!][++++++++++@+@@!++][++++++++++!++!!++][++*+++++*+++@+*++][+++++++++++++++++][+++++++++++!+!@++][+++++++++++++!+++][+++++++++++++++@+][+++++++++++++++++][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++],))))))))))))))))).

problem 180, black to play

Page 102: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((((((((((((((>[++++++++++@!+++++][+++@++++@++++!!!!][++*+++++*+!+@@@@@][+++++++++++@!++++][+++++++++@!@!++!+][+++++++++++@!+!++][++++++++++++@++++][+++++++++++++!+!+][++*+++++*+++++*++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++][+++++++++++++++++]

problem 181, white to play

Page 103: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<!(@(!(!@(((((((((>!!!@!!!!@@@+!!++++]!@@!@@@@@!+!+@+!++]@++!+@+@!!+++++*++][@+@+@+@!@!++++!++][++@!!++!@++@+++++][!@!+@+!@@++++++++][@!!@++!+@++++!+!+][@@!++@+!!@@++++++][++!+++@!*!!+@@*++][+!@++++@+!+!!+++@][++@++@+@@+@@+!@++][!++!!@+++!++@+@++][+!++@@@@!++!@+++@][+++++++!!+@!!++++][++*+++@!@!+++@*@+][+!@!+!+!@@@@+!!!!][++@+@@@@+++++++++],))))))))))))))))).

problem 182, white to play

Page 104: Igo Hatsuyo-ron - Tsumego Collections · the solution is always particularly reward-ing. I wish you enjoyment and improvement in the wonderful game of go, weiqi, baduk, or whatever

<(((((!(@@(!@(@@@@>!@++@+!!!+++@!@@!!@[@+@@+++!!!+!+!+++][++@+@@@+*+@++!*!+@[+!+!++!+@+++!++++!@++++++!@++@+@!!+!][!+!+!++@+!+@+@+++!@+@+@++!@+!++++@+@@@!@!@++!@+!+@@++!+!@+@*@+@!+*!+++!*+@]!+++++@!@@+@++!++@][@+++++!@!+++@++!+@[+++!!+!!@+++@+++!]@+@+@++@!@@+@@!+++]!!!@+@+@!+++!!!!++@@++*!++++*++!+@*@+][!++++!+++!@+!!!++][+@@!++!++!+@+@++@@,)))))@!@@)!@))@)).

problem 183, black to play