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Go Puzzle Sheet #13.1

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When to defend


. O . . O O O O .
O . O O # # # # #
. O O # # . . . .
. O # . . . . . .
O # . . , # . . .
O # . . . . # # #
. O # # # # O O O
. O O O O O . O .
. . . . . . O . .
Black to play. 

. . . . O . . . .
. . . . O . O O .
. O O . O O # . .
. . . . O . # . .
. . . O O . # . .
O O O # O . # . .
# # # . # # # # #
O O # . # O O O O
. # . . # O . # .
Black to play. 

. # . . O . O . .
. # O . O O O . .
. # O O O . O . .
# O # # # O O . .
# O . # , # O . .
# O . # # # O . .
# O O . O O O . .
# # O O # # # # .
. # # # # . . . .
White to play. 

. # # O . # . . .
O . # O . # . . .
. # # O # . . . .
# # O O # # # . .
O O O # , . # . .
. . # # . # O O .
. # . . # O O . .
. # . # . O . O .
. . . . . . . . .
White to play. 

. . . . . . . . .
. O . O O O . O .
. O O # # # O . .
. O # . . # O . O
. # . . , . # O .
. # . . . . # O .
. . . # . . # O .
. . . . . # # O .
. . . . . # . O .
Black to play. 

. . # # . O # . O
. . . # # # O O O
# . # # O O O . O
# # # . # . O O O
. . O # # O O # #
# O O . O . O . .
# . O . O O O # #
# O . O . # # . #
. . O O # . # # .
Black to play.

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.

If you have any comments, please email the Nick Wedd.





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