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Later Kibitzing> |
Jun-14-19
 | | al wazir: After 25. Nd5 Nxd5 26. Bxd5 Qd7, black is threatening the ♖ on h3. Now I don't see anything better than 27. Rdd3 Rc8/Re8. Too bad. |
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| Jun-14-19 | | agb2002: The direct 25.Rxh5 followed by Rd2 or Re1 is considerably stronger than 25.Nd5. |
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| Jun-14-19 | | patzer2: My pick was 25. Nd5! +- (+3.75 @ 34 ply, Stockfish 10), which appears to be at least as strong as 25. Rxh5! +- (+3.36 @ 34 ply, Stockfish 10). P.S.: So where did Black go wrong? Black's game takes a turn for the worse with 17...Qb6? 18. Qh4 ± to +- (+1.56 @ 28 ply, Stockfish 10). Instead, 17...b4 18. Ne2 Rac8 = (+0.08 @ 32 ply, Stockfish 10) keeps it level. |
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| Jun-14-19 | | Omlyapawn: Nice attack by White. Keeping the pressure on the pinned pawn and Bishop created quite the traffic jam around the Black King. |
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| Jun-14-19 | | Nina Myers: Slowly but surely. |
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| Jun-14-19 | | R4f43l L3 M4550n: Here is a typical Friday puzzle, that is, difficult. Fortunately white position is very prolific, no force moves, despite white King is in bad shape, so no need for rush. I saw the idea of exchange sacrifice but discard as first move, instead I decided for Knight at d5 and than, depending on Black responces, Rook takes h5. For exemple, 1.Nd5 Nc6 (or Nf5) 2.Rxh5! But instead 1...Nxd5 2.Bxd5 and than Rad3 with idea of the same exchange sacrifice at h5. |
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| Jun-14-19 | | Pchief: Black should have exchanged with 14...Nxe3 and only then develop his Q to b6. For otherwise if White's dark B moved away, Black's Ng4 would make no sense and soon be driven back by h2-h3 etc. |
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| Jun-14-19 | | groog: relentless |
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| Jun-14-19 | | swclark25: I also went with 25.Nd5 |
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Jun-14-19
 | | Breunor: Ditto Nd5 for me. |
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| Aug-02-19 | | agb2002: Recycled. |
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| Aug-02-19 | | goldfarbdj: I don't recall seeing this one from last June.
My first thought was 25 Rxh5 gxh5 26. Bh6, which would be absolutely devastating if it were legal. My next thought was 25 Rd3, threatening the exchange sac actually played. That was as far as I got before I decided to look at the answer. Unfortunately, I think that 25 ... Nf6 is an adequate answer that leaves White without a sockdolager. |
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| Aug-02-19 | | mel gibson: I saw the text move.
Stockfish 10 disagrees and says:
25. Nd5
(25. Nd5
(♘c3-d5 ♘e7xd5 ♗b3xd5 ♕b7-c8 ♖h3-c3 ♕c8-f5 ♕g5xf5 g6xf5 ♗d5xa8 ♖f8xa8
♖c3-f3 f5-f4 ♖f3-h3 ♘h5-f6 ♗c1xf4 ♖a8-d8 ♔g1-f2 ♘f6-d5 ♗f4-h6 ♘d5-e7 ♗h6xg7
♔g8xg7 ♔f2-e3 ♘e7-c6 ♖d1-g1+ ♔g7-f6 ♖g1-f1+ ♔f6-e7 ♖h3-f3 f7-f6 ♖f3xf6
♖d8-h8 ♖f1-f2 ♘c6-b4 ♔e3-e4 ♔e7-d7 a2-a3 d6-d5+ ♔e4-f5 ♘b4-c6 ♖f6-f7+
♔d7-d6 ♖f2-d2 ♖h8-e8 ♔f5-g5 ♖e8-e4) +4.21/39 223) score for White +4.21 depth 39
However - following the game's line.
At move 27 Black is in big trouble:
27. Nxd5
(27. Nxd5 (♘c3xd5 ♘e7-g6 ♘d5-f6+ ♗g7xf6 ♕g5xg6+ ♗f6-g7 ♖d2-g2
♕b7xg2+ ♔g1xg2 ♔g8-h8 ♕g6xh5+ ♔h8-g8 ♕h5-g4 ♔g8-h8 ♗b3-c2 ♖f8-e8 ♕g4-h3+
♔h8-g8 ♕h3-h7+ ♔g8-f8 ♗c2-b3 ♖e8-e2+ ♔g2-f3 ♖e2-e6 ♗b3xe6 f7xe6 d4-d5 e6-e5
♗c1-h6 ♗g7xh6 ♕h7-h8+ ♔f8-f7 ♕h8xa8 b5-b4 ♕a8xa7+ ♔f7-f6 ♕a7-b6+ ♔f6-g5
♕b6xb4 ♔g5-f6 d5-d6 ♗h6-g5 ♔f3-g2 ♔f6-f7 ♕b4-b3+ ♔f7-g7) +13.14/36 50) score for White +13.14 depth 36 |
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| Aug-02-19 | | saturn2: Black exchanged its white bishop on f3 and the white collegue on b3 is a superstar fixing f7. In those king indian, pirc, modern openings can we say it is advisible to keep this bishop on c8? I went with 25. Rxh5 gxh5 26. Rd3
<goldfarbdj My first thought was 25 Rxh5 gxh5 26. Bh6>
The bishop cannot jump over the queen. |
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| Aug-02-19 | | Cheapo by the Dozen: I went with 26 Rd3 rather than Rd2, overlooking the defense 26 ... h4, but fortunately Stockfish assured me White wins anyway. A key point is that the pin at f7 is remarkably effective at slowing down Black's attempts to defend. Neither an f-pawn push (to improve communication on the second rank) nor a knight repositioning turns out to be a useful option. |
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| Aug-02-19 | | TheaN: Also missed this in June. I went with exactly the wrong order, playing 25.Rxh5 gxh5 26.Nd5?! Bxd5 27.Bxd5 Qc8 and Black's actually fine. Typically, 25.Nd5 works, as it sets the same sequence in motion (threatening Nf6) before the exchange sac and Black is perhaps even more lost than after 25.Rxh5. |
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| Aug-03-19 | | goldfarbdj: <saturn2>: Hence the "if it were legal". |
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| Aug-09-19 | | Cheapo by the Dozen: Somehow I never recognize this puzzle when it returns. This time I went again with my line from two appearances ago, not the one I picked last week. Fortunately, they all win. |
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| Aug-09-19 | | agb2002: Re-recycled. |
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| Aug-09-19 | | whiteshark: You don't mess with the <Quillan>. |
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| Aug-09-19 | | morfishine: Re-re-recycled |
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| Aug-09-19 | | TheaN: Oh wow, a re-re-re-re-re-re-cycle (including last week) and I still missed it (guess it's a tough position anyway); thought it looked familiar. This time I went with the still obvious 25.Rxh5 gxh5 and followed it with 26.Re1?! which isn't terrible, as it overloads Ne7. Black can't protect Ne7 on account of 27.Ne4! +- but if he surrenders it whilst taking d4 (26....Qb6 ±) White has a lot to do. Though on another note, CG? That's three times including back to back Fridays. |
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| Aug-09-19 | | devere: It's deja vu all over again. |
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Aug-11-19
 | | Sargon: Friday’s puzzle was a repeat (an error by the puzzle-master), and this triggered a situation which resulted in a repeat of Saturday’s and Sunday’s puzzles, due to the program logic. I’m going to try and make an adjustment to ensure this issue doesn’t recur. |
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May-16-20
 | | JointheArmy: Pun suggestion: Dubvious. |
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Kibitzing
sac: 25.Rxh5