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Alexander Kazimirovich Tolush vs Paul Keres
Leningrad/Moscow training (1939), Leningrad/Moscow RUS, rd 7, Jan-11
Nimzo-Indian Defense: Spielmann Variation (E22)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
May-01-04  iron maiden: Nice queen sac to gain a tempo and promote the e-pawn. Black forces mate after 38. Kf3 Qe3#, or 38. Kh2 Qxh4+ 39. Kg1 Re1#, or 38. Kh3 Re3+ 39. Kh2 Qg3+, folowed by Re1#.
Jan-17-11
Premium Chessgames Member
  notyetagm: Tolush vs Keres, 1939

36 ... ?


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36 ... ♕b3-g3+! <decoy: g3>


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37 ♔h2x♕g3 e2-e1=♕+ <tempo>


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Game Collection: DECOY FOR TEMPO: PROMOTE PAWN WITH CHECK

Tolush vs Keres, 1939 36 ... Qb3-g3+! allows promotion 37 ... e2-e1=Q+ with mate to follow

Dec-09-13  Bob Loblaw: 32. ♕f1?? was a blunder. {the correct course was: 32. ♕g4! g6 33. ♖b8+ forces a draw by repetition

Another critical point was at move 23. when Tolush should have put the pawn sac to the test with 23. ♗b5 In his annotations to the game Keres writes that black would have have regained his pawn after 23... ♕b6 24. ♖f1 ♖c5 25. ♗c4 e4 26. ♕e2 ♗d5 but the interpolation of 25. a4! a6 26. ♗c4 almost forces Black to sacrifice the exchange with 26... ♖c4 as 26... e4 no longer suffices due 27. ♕d4! with a large advantage to White. after 26.. ♖c5 play could continue: 27 ♕c4 ♕e3+ 28. ♔h1 ♕g5 29. ♕e4 ♗c8 30. ♖f2 ♘f5 where the onus is on black to show he has compensation for the exchange.

" Black can continue differently after 23 ... ♗b5" writes Keres, 'namely 23... e4 24. ♕f1 ♖c5. Now there is threatened 25 ... ♘f5, and after 26. ♗b4 or 26. ♗d4 there follows 25 ... ♖c2..."

In his analysis Keres misses the fact that his opponent isn't obligated to play either 26. ♗b4 or 26. ♗d4 but can play the much stronger 26. ♗e2! when after the logical 26.... ♗c8 27. ♗g4 ♘g6 28 fg ♗g4 29 gh+ ♔h7 30. ♖d2 White has pawn and the initiative and is very close to winning.

Jan-17-14  Skakalec: <Bob Loblaw> in your variation after 25. a4 a6 26.♗c4 ♖xc4 27.♕xc4 ♕xe3+ 28.♔h1 ♕g5 and now 29.♕xe4 ?? shouldn't black play 29...♖xe4?

Let's say that you overlooked that and the correct move is 29.♕e2 protecting g2, then black has a great attack with 29...e3! (threatening ♗xd5 with winning position) if 30.♖ad1 ♕xg2!! wins almost on spot, therefore 30.♖fd1 ♘xf5 with more then enough compensation for the exchange.

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