The diagram position was the scene of the crime. Spassky played 31. Rc1] The question marks are because Spassky clearly overlooked his opponent's reply; the exclamation mark is added because it should not have mattered.
Play continued 31 . . . Ncb3 32. axb3 Nxb3 when White, threatened with Nxd2+ or Rxc1+ appears lost. Spassky's 33. Rc6? Nxd2+ 34. Rxd2 just surrendered without a fight.
The move discovered by Deep Thought is 33. Qc3]] After 33 . . . Rxc3 34. Rxc3, White threatens both Rxb3 and Rc8+, so 34 . . . Nc5 is forced, when 35. b4 wins the knight, leaving White on top after 35 . . . Qa7 36. bxc5 dxc5 37. d6]
Black does better with 33 . . . Nxc1 when 34. Qa3 confuses matters. White threatens Qxa6, while also having chances of picking up the cornered knight. 34 . . . b4 35. Qa4+ also leads to advantage for White. Black's best is probably to try to open lines for his queen with 34 . . . f6, but the position remains very obscure.
Yesterday's answer: 1. Ba1] Bxa1 2. Kf8] mates next move.Reuse content