Jan-04-23 | | Brenin: Materai ls equal, but White is weak on the dark squares, especially e1 and the a7-g1 diagonal, so 24 ... Bxd4, pinning White's Q against the K. If 25 Rxd4 or Qxd4 then 25 ... Re1+ leaves the piece on d4 hanging. |
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Jan-04-23 | | Cheapo by the Dozen: 24 ... Bxd4. And it clearly needs to be played immediately, since otherwise White can play Nxf6+ After that, choices for White include:
1. The game line.
2. Interposing at e3, but that fails because there are 2 defenders and 4 attackers, only one of which can be removed by a Zwischenzug. 3. A Zwischenzug try with Na4, which fails because Black will be able to take White's queen with check. 4. 25 Rxd4, which leaves White with insufficient compensation for the queen, with an eventual ... Qg1+ adding a little extra insult to injury. |
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Jan-04-23 | | mel gibson: I saw that in about 10 seconds as White had some back rank problems. Stockfish 15 says:
24... Bxd4
(24. .. Bxd4 (♗f6xd4 ♕f2xd4 ♖e7-e1+ ♔g1-f2 ♖e1xd1 ♕d4xb6 ♖d1-d2+ ♔f2-f3 ♘d5xb6 b2-b3
♘b6-d7 f4-f5 ♘d7-e5+ ♘g4xe5 ♖e8xe5 ♔f3-f4 f7-f6 ♘c3-e4 ♖d2-d4 ♖h3-e3 h6-h5
♖e3-e2 ♖d4-d5 ♔f4-g3 ♖e5xf5 ♘e4-d2 ♖d5-d8 ♘d2-f3 ♔g8-f8 h2-h4 ♖f5-d5 ♖e2-f2
♖d8-e8 ♘f3-g1 ♖d5-d4 ♘g1-f3 ♖d4-d6 ♔g3-h2 ♖e8-e4 ♔h2-g3 ♖e4-g4+ ♔g3-h3
c6-c5 ♖f2-c2 b7-b6 ♖c2-c4 ♖g4xc4 b3xc4 b6-b5 c4xb5 ♖d6-d3 ♔h3-g3 c5-c4)
+9.00/43 190)
score for Black +9.00 depth 43. |
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Jan-04-23 | | King.Arthur.Brazil: Without much patience, I saw the line 24...♗xd4 25. ♖xd4 ♖e1+ 26. ♕xe1 ♖xe1+ 27. ♔f2 ♕xd4+ 28. ♔xe1 ♕g1+ 29. ♔e2 ♕xg2+ 30. ♘f2 ♘xf4+. White can reply: 25. ♕xd4 ♖e1+ 26. ♔f2 ♖xd1 27. ♕xb6 ♖d2+ then 28... axb6 (I failed to see the check move). If there is another better move, the King didn't see it. |
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Jan-04-23 | | Brenin: Was White confused by Black's mysterious shimmy Qa5-b6-a6-b6? With a slight positional disadvantage he could have proposed a draw by repetition with 24 Rd3, or released the tension and blocked the e-file and the Black B's long diagonal with 24 Nxd5 cxd5 25 Ne5. Instead he chose disaster with 24 Rd1. |
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Jan-04-23 | | jrredfield: Quite a contrast from yesterday. Only 24 ... Bxd4 puts Black ahead. All other moves are drawish at best. |
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Jan-04-23 | | Mayankk: The d4 pawn, attacked twice by Black Queen and Bishop is the key point of tussle here, along with doubled Rooks on the open e file. We can join these two resources via the sham 24 ... Bxd4 Bishop sac. Now either the Queen or the Rook has to leave the e1 square unguarded. 1. 25 Rxd4 Re1+ wins instantly by 26 Qf1 Rxf1+
2.A 25 Qxd4 Re1+ 26 Rxe1 loses the Queen
2.B 25 Qxd4 Re1+ 26 Kf2 Rxd1 27 Qxb6 Rd2+ 28 Kf1 axb6 leaves Black up an exchange plus pawn. The subtle detail in 2.B line is the intermezzo 27 ... Rd2+ move which allows Black to safeguard its Rook and emerge an exchange up. |
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Jan-04-23 | | agb2002: Black has a bishop for a knight.
White threatens Nxd5 and Nxf6+.
The white queen is overburdened with the defense of d4 and e1. This suggests 24... Bxd4: A) 25.Qxd4 Re1+ 26.Kf2 (26.Rxe1 Qxd4+ wins decisive material) 26... Rxd1 27.Qxb6 (27.Nxh6+ gxh6 28.Rg3+ Kf8 wins decisive material) 27... Rd2+ and 28... axb6 - + [r+p vs N]. B) 25.Rxd4 Re1+ 26.Qxe1 Rxe1+ 27.Kf2 Qxd4+ 28.Kxe1 Nxf4 - + [q+2p vs R+N]. |
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Jan-04-23 | | cocker: <agb2002> At the end of your B) line, Black makes things easier for himself with 28 ... Qg1+. |
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Jan-04-23 | | Refused: King and Queen on the same diagonal and a weakened backrank (which the queen also has to cover) look kinda suspect. Thus
24...Bxd4 is a candidate
That Bishop has to be captured
a) 25.Rxd4 Re1+ is obviously not an option thus
b)25.Qxd4 Rd1+ 26.Kf2 (obviously not 26.Rxe1 Qxd4+) Rxd1 27.Qxb6 Rd2+ is virtually forced. And after 28...axb6 black is up an exchange with a monster Rook on the the second rank and the other one waiting to join the action. This is utterly resignable for white. |
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Jan-04-23 | | TheaN: <24....Bxd4> kind of flows from these kind of positions naturally. Interestingly, after this move there are <eight pieces attacking e3>, of which 5 are Black and 3 are White. This <is> relevant, because it doesn't allow White to decline the sac by interposing (ie 25.Ne3? Nxe3 #13). So, queen or rook? 25.Rxd4 is probably the 'easier' line: 25....Re1+ 26.Qxe1 Rxe1+ 27.Kf2 Qxd4+ 28.Kxe1 and White picks up RN for the queen, but 28....Qg1+ -+ is nasty. Didn't look this far to be honest, but Black's position is dominating otherwise. <25.Qxd4> seems at first glance White can save the queen after <25....Re1+ 26.Kf2 (Rxe1 Rxe1+ 27.Kf2 Qxd4+ transposes to the Rxd4 line)>, but after <26....Rxd1>, a typical cross pin pattern, White loses Rd1 and the defense of the queen. Icing on the cake is <27.Qxb6 Rd2+ -+>, where the tempo allows Black to keep the rook and take back on b6 after. |
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Jan-04-23
 | | pittpanther: I saw 24.... Bxd4 25. Qxd4 Re1 26. Kf2 but then missed 26....Rxd1 but planned to play 26....Nxc3 and after the recapture on c3 then play Rxd1. Seems that also wins. Not sure why I skipped over Rxd1 before playing Nxc3. |
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Jan-04-23
 | | chrisowen: I q runt wop glace it is Bxd4 account mack doh it is axiom jog dutch it is Bxd4 cad? |
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Jan-05-23 | | agb2002: <cocker: <agb2002> At the end of your B) line, Black makes things easier for himself with 28 ... Qg1+.> You're right, thank you! |
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