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Chess'n'OK

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Феерия Нежметдинова: движок мало что понял, а Рашид Гибятович и ферзя отдал, и виртуозно хитрил против Черникова (Ростов, 1962)

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Нежметдинов - Черников, Ростов-на-Дону, кубок Чигорина, 1962, 1-0. Отличная битва, очень виртуозная) Sicilian Defense: Open, Accelerated Dragon, Modern Variation, 5...Bg7 6.Be3 Nf6 7.Bc4 O-O 8.Bb3 Ng4; Rashid Nezhmetdinov vs. Oleg Chernikov 1-0; Rostov-on-Don URS: Chigorin Team Cup: 1962.??.??
1. e4Notes by Voloshin.1... c52. f3 c63. d4 cxd44. xd4 g65. c3 g76. e3 f67. c4 O-O8. b3 g4
8... a5The mistake that Reshevsky famously made against Bobby Fischer.9. e5 e810. xf7+!! xf710... xf711. e6! +-Reshevsky played on here after surrendering the queen.11. e6!! xe612. d5+ f513. g4+ xg414. g1+ h415. g5+ h516. d1+ f317. xf3#
9. xg4 xd410. h4 a511. O-O f6"Here it is, the 'theoretically drawn position.' The queen cannot go to g3 or f4 since Black 'sacrifices' the queen on c3 and obtains a great advantage. The retreat of the queen to d1 after 12.Qg4 d5 is logically inconsistent; the queen could have gone to d1 a couple of moves earlier without giving Black extra tempi. A draw by repetition will occur if the White moves his queen from h6 to h4 while Black attacks it by Bg7 and Bf6. This position had already been seen in tournament play, and the opponents invariably began peace negotiations. Here Chernikov was certain that Nezhmetdinov had decided to get some rest that day. (Incidentally, I am not able to recall a single instance where Nezhmetdinov had that in mind when he sat down to play. He loved chess too much to take a day off at the board and not be creative.) Twenty, thirty, forty minutes went by, and White was still thinking. Chernikov was strolling around. 'Do you know what Rashid Gibyatovich is thinking about for so long?' he asked as he turned to me, 'It is a dead draw. If he wanted to go on playing, he should have thought earlier.' At that moment, an excited boy ran up to Chernikov: 'Mister, he sacrificed his queen to you!' I did not see Chernikov stroll around any more after that."12. xf6!!This move incredibly gives up the queen for two minor pieces. The key is that the minor pieces are incredible. The knight on d5 and bishop on d4 make a ferocious pair that hound Chernikov's weak dark squares. Additionally, Chernikov's queen and rooks have no scope or targets, undercutting their value. An older or weaker engine doesn't like this, but a modern neural network is better equipped to understand the positional compensation and Stockfish 12 approves of this move though it certainly doesn't think that White is winning yet.
12. h6 g713. h4 f6 =
12... e2+!a clever move to slow down the knight's journey to d5.
12... xb3??13. axb3 +- xa114. xe7 a515. h6 d816. d5 +-
13. xe2 exf614. c3 e8"Was Nezhmetdinov able to calculate all the consequences of the queen sacrifice? During the analysis immediately after the game, I was struck by how much Nezhmetdinov had seen at the board. But there is no genius capable of calculating all the possible attacks and defenses in this position, even if there were no clock ticking away, ruthlessly counting off the time... We have before us a typical example of an intuitive sacrifice, in which imagination and intuition come to the forefront and enable us to realize more profoundly the richness and beauty of the art of chess. 'Who knows, if Chernikov had played 14...d5 instead of 14...Re8 and lost with it, analysis may have appeared demonstrating that he should have played 14...Re8.'"
14... d5The often given recommendation.15. xd5 e616. xf6+ g717. d5Stockfish 12 still prefers White. The same problems persist as in the game. The minor pieces are excellent, and what can Black's queen do?
15. d5 e616. d4 g717. ad1 d618. d3!At this point, with the pressure against f6 becoming unmeetable, engines realize that White is winning. Could Black have saved the game earlier? It's hard to say, but in all lines I've seen, the more the engines think, the more they like White, and I've seen no clear line for Black to free the position.18... d719. f3
19. xf6!A clear win.19... xf620. f3 f5to break the attack against f6.21. exf5 g522. g3 h623. c3Black can move nothing. The pin on the f6-rook is forever.
19... b5?After this, the game cannot be saved.
19... e5!Chernikov's one chance.Of course, Nezhmetdinov wouldn't willingly give up the valuable dark-squared bishop for the rook on e5, but Chernikov can try to force the exchange.20. c320. xf6 e620... xe421. c3just wins in this case.21. f4? xe4!22. c3 c5+ -+20... d821. xf6 c8insisting on eliminating the bishop.22. xd6 xc323. xc3unclear.
20. c3 d821. xf6 e2It is funny to fork the rooks instead of capturing one, but Chernikov is correct that the f3-rook is the only one that matters. Unfortunately, he is not in time thanks to Nezhmetdinov's next.
21... xf122. g4+ f822... g823. xe6 fxe624. h6#23. xe6 +-
22. xh7+!and wins. Nezhmetdinov either wins material or makes a mating net.22... g8
22... xh723. xf7+ h624. xe6 xf125. g7+ h526. g4+ h427. f6+ +-