White to Play - Black Wins

1.Rc1+ Kb5 2.Rb1+ Kc5 3.Rc1+ Kd6 4.Rd1+ Bd5+ 5.Kb2 a3+ 6.Ka1 a2 Fine calls this a mistake after which Black could only draw. However, Black still wins by a sacrificing the a-pawn to reach a winning R+B vs. R position. The path of longest resistance in the tablebase is 7.Rc1 Bb3 8.Kb2 Kd5 9.Ka1 Bc4 10.Kb2 Kc5 11.Ka1 Kb4 12.Kb2 Bd3 13.Kxa2 Rh2+ 14.Ka1 Bc2 15.Kb2 Bb3+ 16.Ka1 Ra2+ 17.Kb1 Rd2! 18.Re1 Bc2+ 19.Kb2 Bd3+! 20.Kc1 Kc3 21.Re7 Ra2 22.Rc7+ Bc4 23.Rb7 Re2 24.Rd7 Rg2 25.Rd8 Ra2 26.Rb8 Ba6 27.Rb6 Bd3 28.Rc6+ Bc4! 29.Rb6 Rc2+ 30.Kb1 Re2 31.Ka1 Re5 32.Rb7 Ra5+ 33.Kb1 Bd3+ 34.Kc1 Ra1+ 35.Rb1 Rxb1#

Analysis using computer generated chess engame tablebase.

Uncorrected as Position 1009 in the Benko edition.

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