[Event "USSR Ch"] [Site "Moscow URS ch"] [Round "0"] [White "Keres"] [Black "Tal"] [Result "0-1"] [FEN "2r3k1/pp1b2pp/3bp3/n2qNp2/3P4/P2BB3/1P2QPPP/3R2K1 b - - 0 20"] {Another liquidation into an ending with unlike Bishops} 20... Ba4 $1 (20... Bxe5 21. dxe5 Qxe5 22. Bxa7 Qxe2 23. Bxe2) 21. Re1 Bxe5 22. dxe5 Rd8 23. b4 ( 23. Bb1 Bd1) (23. Bc2 Bxc2 24. Qxc2 Nc6 {excellent for Black}) 23... Bc6 $1 24. f3 Qxd3 25. Qxd3 (25. bxa5 Qxa3 26. a6 $1 {drawing chances}) 25... Rxd3 { Even the greatest masters go astray in the judgement of endings of unlike Bishops} 26. bxa5 Rxa3 27. Bxa7 Rxa5 28. Bd4 Ra2 29. Rb1 Rd2 30. Bc3 Rc2 31. Bd4 Kf7 {Thie ending is an instructive win in all lines. It differs from the previous example due to the passed extra pawns and Rooks on the board inhibit the drawing tendencies of unlike Bishops} 32. h4 Kg6 33. Rb4 h6 34. Rb2 Rxb2 { Now even with Rooks off it's a win} 35. Bxb2 Kh5 36. Ba3 Kxh4 37. Bf8 Kg3 38. Bxg7 h5 39. Bh6 Bxf3 $1 40. gxf3 Kxf3 41. Kf1 b5 42. Bd2 h4 43. Bb4 h3 44. Kg1 Ke2 0-1