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Lev Psakhis vs Tibor Tolnai
Dortmund-A (1989), Dortmund FRG
Sicilian Defense: Dragon. Yugoslav Attack Panov Variation (B76)  ·  0-1

ANALYSIS [x]

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sac: 9...Bxg4 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
May-14-04  islero: If White chooses 17 Rb1 instead of the ghastly-looking 17 b3, then 17 Rb1 Qa5 18 Bxh5 (18 Be3 Rxb2! ) 18 ... Nc4 and I guess that Black is winning here. Nice game!
Jul-12-05  davewv: This game is on page 99 of "Secrets of the Sicilian Dragon by Gufeld and Schiller. Heading is : Ten Tactical Themes for Black. Sacrificing the pawn at d6.
Oct-17-07  The Chess Express: White can improve with 11. Nxc6 bxc6 12. Bg5 (!) Rb8 13. Be2 h6 14. Bh4 Ne5 15. 0-0-0
Sep-24-20
Premium Chessgames Member
  al wazir: After 24...Qa3 I expected 25. Qg3.

The continuation is similar to the game line: 25...Qc1+ 26. Kg2 (26. Bd1 Bxc3) Bxc3 27. Qxc3 Rxe2+ 28. Kh1 Nf2+ 29. Kh2 Nxh3+ 30. Kxh3 Qxg1.

Sep-24-20  devere: 24...Qa3 seems like the only reasonable move, so why is this a problem?
Sep-24-20
Premium Chessgames Member
  agb2002: Black has a pawn for a bishop.

White threatens bxa5 and Qxa7.

The only reasonable move seems to be 24... Qa3 with the idea Bxc3 and Qc1+. For example, 25.Qxa7 Qc1+ 26.Nd1 (26.Kg2 Bxc3 27.Rxc3 Rxe2+ recovers the piece with attack; 26.Bd1 Bxc3 27.Qxf7+ Bg7 wins) 26... Rxd1+ 27.Bxd1 Qxd1+ 28.Kg2 Qxc2+ and Black will collect the e-pawn with check although the resulting position may not be enough to win.

Sep-24-20  Walter Glattke: 24.-Qa3 25.Qf4 Qc1+ 26.Kg2 Bxc3 27.Qxf7+ Bg7 (or perpetual) 28.Qf1 (26.-Rxe2+ 27.Nxe2!)
Sep-24-20  Brenin: By elimination of all other possibilities, 24 ... Qa3. Then 25 b4 is over-optimistic, presumably still playing for a win: White should play for a draw with 25 Rf3, e.g. 25 ... Bxc3 26 Rxf7+ Bg7 27 Rxg7+ Kxg7 28 Qc7+, with perpetual check.
Sep-24-20  saturn2: I went for 24.. Qa3 regaining a piece
but I dont have the feeling to have solved a puzzle.
Sep-24-20  mel gibson: Fairly easy -
it took me about 15 seconds to see the correct move.

Stockfish 12 says:

24... Qa3

(24. .. Qa3 (♕a5-a3
♖h3-d3 ♖d2xd3 c2xd3 ♕a3xc3 ♕b8xa7 ♘g4-e5 ♕a7-e3 ♕c3-a1+ ♔f1-g2 ♕a1xa2 d3-d4 ♘e5-g4 ♕e3-d3 ♔h7-g8 d4-d5 e6xd5 e4xd5 c6xd5 b4-b5 d5-d4 ♕d3-c4 ♕a2-b2 ♕c4-d3 ♗g7-f6 ♔g2-h3 ♕b2-a1 ♔h3-g2 ♕a1-a8+ ♕d3-f3 ♕a8-a2 ♔g2-f1 ♕a2-b2 ♕f3-d3 ♔g8-g7 ♔f1-g2 ♘g4-e3+ ♗g1xe3 d4xe3 ♕d3xe3 ♗f6xh4 ♔g2-h1 ♗h4-f6 ♗e2xh5 g6xh5 ♕e3-g3+ ♔g7-h6 ♕g3-f4+ ♔h6-g6 ♕f4-e4+ ♔g6-g7) +5.07/37 212)

score for Black +5.07 depth 37

Sep-24-20  WorstPlayerEver: Not easy; Black has to play some accurate moves after 24... Qa3 and there are several lines to deal with until one can say: "This is easy."
Sep-24-20
Premium Chessgames Member
  Predrag3141: Play starting with the puzzle position after 24 b4 was very prosaic. I'd have played 24 ... Qa3 instantly but took 15 or 20 minutes as a puzzle solver trying to find a clever alternative.

I paused a long time before predicting 26 ... Bxc3 because White had a far more practical option than actual play: 27 Qxf7+ Bg7 28 Qf1 Qxc2 29 Kf3. Here Black is clearly winning but has no immediate knock-out.

Sep-24-20  TheaN: Weird choice, again. CG, lately I'm not so sure how well these positions are quality checked to be an actual puzzle; Wednesdays and Thursdays have been oddballs in the recent weeks (sometimes even mixing up difficulties greatly in the midweek days).

What's puzzle-like about 24....Qa3? It's pretty much Black's only move. The fact that it's winning is not relevant; it's not easy nor hard. We play to survive, only to realize it's winning afterwards.

After the predictable 25.Qxa7, <25....Qc1+> is where the puzzle actually starts, mainly <26.Nd1 Rxd1+! 27.Bxd1 Qxd1+ 28.Kg2> and here I wanted to continue the attack with 28....Qe2+?! but of course <28....Qxc2+ -+> is more to the point, winning Pc2 with tempo.

I know that it might be less practical to start this after 25.Qxa7, but it might have been for the better here.

Sep-24-20  TheaN: <agb2002: (...)Qxc2+ and Black will collect the e-pawn with check although the resulting position may not be enough to win.>

Surprisingly, Black's pieces are very destructive. After the forced 29.Bf2 (Kh1?? Qxe4+ 30.Rf3 Qxf3#; Kf3 f5! -+; Kf1 Qb1+ 30.Kg2 Qxe4+ -+) Qxe4+ 30.Kf1 Qc4+ 31.Kg2 f5! -+.

Black's knight's a monster, the queen's free as a bird, the bishop will join up when the time is right. It's White that's on a very slippery slope; but it would have been better than 26.Kg2.

Sep-24-20  little ernie: Why not 29. ...Ne5+ 30. Kf4 Rxe4+ 31. Kg5 Qxh4# ?
Sep-24-20
Premium Chessgames Member
  chancho: He had his choice of mates.

29... Qf1+ 30. Bf2 Rxf2+ 31. Qxf2 Qxf2#

29...Qf1+ 30. Kg3 Rg2+ 31. Kh3 Rxg1#

29...Qf1+ 30. Bf2 Rxf2+ 31. Kg3 Qg2#

Sep-24-20  Cheapo by the Dozen: Only hard thing was time wasted looking for something better than the obvious move. Blech.
Sep-24-20
Premium Chessgames Member
  Jimfromprovidence: <Predrag3141> <I paused a long time before predicting 26 ... Bxc3 because White had a far more practical option than actual play: 27 Qxf7+ Bg7 28 Qf1 Qxc2 29 Kf3 Here Black is clearly winning but has no immediate knock-out.>

This line 27 Qxf7+ Bg7 28 Qf1 Qxc2 29 Kf3 looks more interesting than the text.


click for larger view

Black to play and win.

Sep-24-20  gawain: Pretty interesting. 24...Qa3 is appealing but I was looking for something more compelling. After 24...Qa3 25 Re3 or 25 Qf4 Black has a winning path but also has many ways to go wrong and let White of the hook.
Sep-24-20  RandomVisitor: 11.Nxc6 bxc6 12.Bf4:


click for larger view

Stockfish_20090822_x64_modern:
NNUE evaluation using nn-308d71810dff.nnue enabled

<44/62 11:29 +2.16 11.Nxc6 bxc6 12.Bf4> Rb8 13.Be2 Qb6 14.Nd1 Nf6 15.Bf3 Nd7 16.Be3 Ne5 17.Be2 Qb7 18.0-0 f5 19.exf5 gxf5 20.a4 Ng6

Sep-24-20
Premium Chessgames Member
  drollere: Qa3 is forced, as there is no check that does not lose material; the Q position on a3 is not dangerous because the R on h3 is hanging. i examined the continuation Qc1+ but thought a move like Nd1 would at worst trade off the black R for N+B and give the K some flight squares to shelter. (white's Qa7 precludes Bxc3 first.) so i assumed there must be something better that i could not find.

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