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Copyright 1991,1996, 1997, 1998 John Richard Coffey.
Please use the links below to center the problems, and to advance to the next diagram.
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0 [Next]	Black to move
1 [Next]	Black to move
2 [Next]	Black to move
3 [Next]	Black to move
4 [Next]	Black to move
5 [Next]	Black to move
6 [Next]	Black to move
7 [Next]	Black to move
8 [Next]	Black to move
9 [Next]	Black to move
10 [Next]	With equality according to the Fire chess engine.
11 [Next]	Black to move
12 [Next]	Black to move
13 [Next]	Black to move
14 [Next]	And black might be winning.
15 [Next]	Black to move
16 [Next]	Black to move
17 [Next]	And Black is equal according to the Fire chess engine.