Shredder throws the game. If I recognize the error, I win easily. If I miss the chance, I may lose.
Black to move
Black has a slight advantage despite the apparent exposure of the machine's king.
33...Qxb2
Shredder makes a horrendous move. Without taking a moment to consider the tactics, I opt to win back the pawn and get a pig.
34.Rb1
34.Qg6+ was the correct move, as it keeps the Black queen off the b1-h7 diagonal.
34...Qxa3 35.Rxb7
White has an overwhelming advantage.
35...Be7
Black moves into a mate in four.
White to move
36.Be5But, I go for the mate in eight. Again, Qg6+ was the correct move.
36...Rfd8 makes it mate in four once again.
37.Qh8+ Kf7 38.Qg7+ Ke8
White to move
And now I miss the mate in two.39.Qg6+
39.Qg8+ finishes things.
39...Kf8 40.Bg7+ Kg8 41.Bh6+ Kh8 42.Qg7#
At least there was some gratification from instantly working out a mate in four from this position. It would be better to have found the mate in two. Perhaps that's another reason to set aside junk play and concentrate on the 320 problems in Lev Alburt, Chess Training Pocket Book II.
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