Jul-17-19 | | Cheapo by the Dozen: Fun one. The main line starts:
19 ... Bxd3
20 Qxd3 f6
and the mate threat wins.
If Black declines the bishop, then 20 ... Be4 looks likely to get the pawn to f3 anyway. |
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Jul-17-19
 | | An Englishman: Good Evening: Does 19...Bh5 also work? Might not be the absolute best move, but does it also win? |
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Jul-17-19 | | Cheapo by the Dozen: The original, broken puzzle today was tun too. My solution was to trade queen for rook at d7 and then get both rooks to the back rank, hunting the Black king stuck on the h-file. If I analyzed correctly, Black could only avert a quick mate by saccing a full queen back. |
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Jul-17-19 | | NBZ: <An Englishman>: 19. ... Bh5 was the first move I looked at! But I think White is actually better there: 20. Qxh5 f3 21. g6 h6 22. Bxh6! and Black has no time for Qh3 or fxe2. due to the mate threat. After 22. ... gxh6 23. Qxh6+ Kg8 24. Re6 I definitely fancy White. |
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Jul-17-19
 | | An Englishman: Good Evening: <NBZ>, that looks like a very nice shot, indeed. |
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Jul-17-19
 | | al wazir: Easy. *Much* easier than yesterday's. |
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Jul-17-19 | | newzild: Like <An Englishman>, I fell for the 19...Bh5 cook. |
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Jul-17-19 | | mel gibson: I thought B-h5 but I was wrong.
Stockfish 10 calls that a losing move.
Stockfish 10 agrees with the first move.
19... Bxd3
(19. ..
Bxd3 (♗g6xd3 ♖a1-e1 ♗d6xa3 b2xa3 ♗d3-e4 ♖e2xe4 d5xe4 ♖e1xe4 ♕d7xd2 ♖e4-d4
♕d2xa2 a3-a4 ♖a8-d8 ♖d4xd8 ♖f8xd8 ♕f3xf4 ♕a2-a1+ ♔g1-g2 ♕a1xc3 h4-h5 ♔h8-g8
♕f4-f3 ♕c3-c5 ♕f3-g4 ♔g8-h8 ♕g4-f4 ♖d8-f8 ♕f4-d2 ♕c5-c6+ ♔g2-g1 ♕c6xa4
h5-h6 ♕a4-a1+ ♔g1-g2 g7xh6 ♕d2-d6 ♕a1-g7 ♕d6xh6 ♕g7xh6 g5xh6 ♖f8-f6 ♔g2-g3
♖f6-g6+ ♔g3-f3 ♖g6-a6) +8.73/34 94)
score for Black +8.73 depth 34 |
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Jul-17-19 | | MrCarciofo: I saw Bh5 and Bxd3, I analyzed both lines but I thought Bh5 was better for draining away the queen from defencing - but I totally overlooked the attack: g6 and White is much better: very strong initiative and three pawns ahead. |
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Jul-17-19 | | malt: Have 19...B:d3 20.Ree1
(20.Q:d3 f3 21.Re3 Qh3 )
20...Be4 21.R:e4 de4 22.Q:e4 f3 wins |
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Jul-17-19 | | TheaN: Typical that I haven't considered 19....Bh5 at all; it seems almost as logical. No, I near instantaneous looked at <19....Bxd3>. White has no proper way to decline this sacrifice as the rook's en prise, after 20.Ree1 Be4 -+ Black just goes on with the plan anyway. White's best move may well be 20.Rae1 (to take on e4 after Be4) but then he's lost regardless after 20....Bxa3 21.bxa3 Bxe2 -+ After <20.Qxd3> however, Black has to be a bit careful. It's tempting to do everything with tempo, but after 20....Qg4+?! 21.Kf1 f3 22.Re3 and suddenly the queen's defending f1 against mate. Apparently this wins after 22....Bg3!! which I didn't calculate. Didn't need to, as I decided that <20....f3> seals the deal anyway, as now the multiple mate threats force White to give up loads of material: 21.Re6 will prevent mate in a short while. If White attempts to keep the material he has to part with it a move later anyway: <21.Re3 Qh3 22.Rxf3 (else Qg2#) Rxf3 -+>. |
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Jul-17-19 | | SpamIAm: Methinks the losing move was 10.g4. |
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Jul-17-19 | | agb2002: Black has the bishop pair for a bishop, a knight and a pawn. The white queen is overburdened with the defense of d3 and g4. This suggests 19... Bxd3: A) 20.Qxd3 f3
A.1) 21.Re3 Qh3 (21... Qg4+ 22.Kf1 Qg2+ 23.Ke1 Qg1+ 24.Qf1) 22.Rxf3 (22.Qf1 Qh2#) 22... Rxf3, followed by Bh2+, wins. A.2) 21.Qd4 Qh3 wins.
A.3) 21.Kf1 Qh3+ and mate next.
B) 20.Ree1 Be4
B.1) 21.Qe2(h5) f3, followed by Qh3, wins.
B.2) 21.Rxe4 dxe4 wins decisive material (22.Qxe4 f3, followed by Qh3, wins). C) 20.Kf1 Bxe2+ wins decisive material. |
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Jul-18-19 | | patzer2: So where did Black go wrong in this Gioco Piano game? According to Stockfish 10, the losing move was 18...h4? allowing 18...Qd7 -+ (-7.11 @ 31 ply). Instead, 18. Nb5 Qxg5+ 19. Qg4 Qxg4+ 20. hxg4 Bxd3 21. Rd2 Bxb5 22. Re6 Bc5! (slightly better than 22...Bxb5 23. Rxd6 ∓) 22. Nd4 Be4 ∓ to -+ (-1.58 @ 39 ply) puts up more resistance. However, the prospects for a draw don't look good for White after 18. Nb5 Qxg5+ ∓ to -+. So we need to look for an earlier improvement. I'd start with the opening and ditch 10. g4 Bg6 ⩱ to ∓ (-0.66 @ 30 ply) in favor of the popular move 10. Nbd2 ± (+0.47 @ 25 ply), as in White's win in S Lobanov vs Tamas Gunes Ongut, 2019. |
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