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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]	Black to Move
11 [Next]	Black to Move
12 [Next]	Black to Move
13 [Next]	Black to Move
14 [Next]	Black to Move
15 [Next]	Black to Move
16 [Next]	Black to Move
17 [Next]	Black to Move
18 [Next]	Black to Move
19 [Next]	Black to Move
20 [Next]	Followed by axb4 is equal according to the Fire Chess Engine.