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Go Puzzle Sheet #17.1

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Ko fights


. . . O . 1 # # .
. . O . O # . # .
. . O . O O # # #
. . . O . O O O #
O O O O O . . . O
# # # . . C O O A
. . # . # # # # B
. # # # . . # . .
. # . # . . # . .
White played 1, taking a piece. Should Black play A, B or C? 

. # O . . . O # .
. # O O . O O # 2
. . # # O . O # .
. # . # O . O # .
. . # # O . O # #
. . . # O . . O O
. . . # # O . O .
. . # # O . O . .
. . # . 1 O . . .
Black took at 1, & White played at 2. Where does Black go now? 

. # 1 . O . O . .
# . # O . O . O O
O # # . O . O . .
O O O O O O . 2 .
O O # # # # O O O
. O # . # . # # #
O . O # . . # . .
O O O # # # . # .
. # # # . . . . .
White took at 1, Black played at 2. Where does White go now? 

. . . # . . . . .
. . . # . . . # .
. . . # # # # . .
# # # O O . O # #
O O O O , O O O O
. . . . O . . . .
. O O O . O O O .
. O # # . # # O .
. O # . # . # O .
It is White's move. Where should White start a ko, and why? 

. . . . # # # O .
. . . # . # O O .
. . # . # O . . .
. . . # # O . O .
. . . . # O . . .
. # . # O O . . .
. . . # O . O . .
. . # . 1 O O . .
. . . # O . . . .
Black just captured at 1. Find a ko threat for White. 

1 O O . . . . . .
. # O O . . . O .
# # # O O . O . O
. . . # O # O O #
. . # # O O # # #
. . # . O # . . .
. . # . O # # # .
# # # O O # O O .
. O O O # # # . .
Black just captured at 1. Find a ko threat for White.

This page gives some of the problems from Paul Smith's "Cambridge Go Puzzle Book". Some other pages are listed here.

It is part of the British Go Association web site.

Last updated: 2002-08-01.

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Last updated Sun Jul 08 2007. If you have any comments, please email the webmaster.