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Later Kibitzing> |
Mar-22-17
 | | tpstar: [Fritz 10]: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. a4 Bb7 9. d3 Re8 10. Nbd2 Bf8 11. c3 Na5 12. Bc2 c5 13. d4 exd4 14. cxd4 d5 15. e5 Ne4 [last book move Opening Explorer ] 16. axb5 axb5 17. Nxe4 dxe4 18. Rxe4 Nb3? [18 ... Nc4 19. Rxa8 Bxa8  ] 19. Rxa8 [  ] Bxa8 20. Ng5 Nxc1 21. Qh5 h6?? [an oversight, but Black was lost anyway - 21 ... Qxg5 22. Qxg5 Bxe4 23. Qxc1 Bxc2 24. Qxc2 cxd4 ] 22. Qxf7+ Kh8 23. Rg4 Qa5 24. h4 1-0.This game begins as a Closed Ruy Lopez (5 ... Be7 compared to the Open with 5 ... Nxe4). Whenever Black castles without playing ... d6, this signals that they may be aiming for the Marshall Gambit (8. c3 d5 Opening Explorer ) with loads of theory. Here 8. a4 is an anti-Marshall line as White gets more play on the Queenside than otherwise. For Black, 9 ... d6 is more common than 9 ... Re8 Opening Explorer and then 11 ... h6 is more common than 11 ... Na5 Opening Explorer so both sides must have been deeply prepared. 18. Rxe4!? was an enterprising exchange sacrifice offer; Black had better chances with 18 ... Nc4 instead of 18 ... Nb3. Fritz suggests giving up the Q for RB with 21 ... Qxg5 or else White has a quick win. Nicely done by Anand. |
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| Oct-25-17 | | RKnight: Well, I considered the line played but fail to see why white wins after 24 h4 Qa8 (if 25 Qxe8 Ne2+ leads to mate for black). I suppose 25 f3 defends and white has a better position. Still, too deep a Wed puzzle for me. |
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| Oct-25-17 | | bcokugras: Good morning, if 25. Qxe8 Peter checkmates by Qxe1. |
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| Oct-25-17 | | patzer2: I was looking for something obvious for a moderately difficult Wednesday puzzle and went for 20. Rh4 which is only good for a draw by perpetual after 20. Rh4 Bxf3 21.Bxh7+ Kh8 22.Rh3 Bxd1 23.Bd3+ Kg8 24.Bh7+ Kh8 = (0.00 @ 28 depth, Stockfish 8.) I suppose one key to the winning move 20. Ng5! is visualizing 20...Bxe4 21. Bxe4 g6 22. Qxg3 +- (+4.15 @ 23 depth, Stockfish 8) and realizing just how strong White's position is after this exchange. Another key is visualizing the game continuation 20. Ng5! Nxc1 21. Qh5 +- (+2.35 @ 28 depth, stockfish 8) and recognizing it as a winning position. |
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| Oct-25-17 | | AlicesKnight: The key elements are not too hard to find but the right order of play is trickier (I missed it). |
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| Oct-25-17 | | morfishine: Game is too well known to be used as a puzzle
***** |
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| Oct-25-17 | | saturn2: Did not know this game. I looked at 20 Ng5
a. 20..BxR 21 Qh5 Bg6 22 BxB and
b. 20..NxBc1 21 Qh5 attacking both f7 and h7.
Both seemed good. |
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| Oct-25-17 | | saturn2: Ha. I have already commented on this game before. Nevertheless I did not remember it and found the move by visualizing not by memory (oh well maybe subconciously) |
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| Oct-25-17 | | WorstPlayerEver: I am too lazy for this. Attention span for chess hit a momentary all low. My intuition says 20. Ng5 I cheated ok, when it should be a Rook move it wouldn't be a puzzle, rrright? ;) |
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| Oct-25-17 | | cocker: The fact that Svidler played on for four moves shows that this is much too deep for a Wednesday. |
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| Oct-25-17 | | The Kings Domain: Glad to get this one. Anand displays some impressive attacking skills here. |
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| Oct-25-17 | | WorstPlayerEver: The concept of WPE is to move pieces ahead only. |
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| Oct-25-17 | | mel gibson: The computer is giving less than a 2 pawn advantage: 20. Ng5
(20. Ng5 (♘f3-g5 ♘b3xc1 ♕d1-h5 ♕d8xg5 ♕h5xg5 ♗a8xe4 ♕g5xc1 ♗e4xc2 ♕c1xc2
c5xd4 f2-f4 ♖e8-d8 ♕c2-d3 g7-g6 ♔g1-f2 b5-b4 g2-g4 ♗f8-e7 h2-h3 ♔g8-f8
♔f2-g3 ♔f8-g8 h3-h4 ♖d8-d5 h4-h5 g6xh5 g4xh5) +1.84/20 97) score for white +1.84 depth 20 |
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| Oct-25-17 | | mel gibson: When Black resigns it is hopeless:
24. h4 Ne2+ (♘c1-e2+ ♔g1-h2 ♕a5-e1 ♘g5-h3
♖e8-d8 d4xc5 ♗a8-d5 e5-e6 ♕e1-d2 ♕f7-g6 ♕d2xc2) -7.24/17 234 score for black -7.24 depth 17 |
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| Oct-25-17 | | patzer2: <RKnight> I think you meant 24...Qa1 when our Stockfish application indicates White wins after 24...Qa1 25.Kh2 (not 25. Qg6?? Ne2+ 26. Qg1+ Kh3 27. Qh1#) 25...Ne2 26.Nh3 Rb8 27.Qg6 Kg8 28.dxc5 Qxb2 29.e6 Bxc5 30.Qh7+ Kf8 31.Qh8+ Ke7 32.Rxg7+ Qxg7 33.Qxg7+ Kxe6 34.Qg4+ Kd6 35.Qxe2 Bc6 36.Nf4 Re8 37.Qd2+ Kc7 38.Bb3 Bb6 39.Nd5+ Kb7 40.Nxb6 Kxb6 41.Qxh6 (+6.86 @ 21 ply) |
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| Oct-25-17 | | patzer2: In the final position after 24. h4, our Stockfish application gives (+10.14 @ 34 ply) 24.h4 Ne2+ 25.Kh2 Qe1 26.Nh3 Rd8 27.Qf5 Kg8 28.Qh7+ Kf7 29.e6+ Ke7 30.Rxg7+ Bxg7 31.Qxg7+ Kxe6 32.Qe5+ Kd7 33.dxc5 Nd4 34.Qxe1 Nxc2 35.Qd2+ Kc7 36.Qxc2 Rd7 37.Qg6 Bc6 38.Nf4 Kb7 39.Qxh6 b4 40.Ne6 Ka7 41.Nf8 Rc7 42.Qd6 Kb7 43.Ne6 Rd7 44.Qf4 Kc8 45.Qf8+ Kb7 +-. |
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| Oct-25-17 | | RKnight: <patzer2> Thanks for the Stockfish analysis. Yes I meant 24...Qa1. Still this is very deep for Wed puzzle. |
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| Oct-25-17 | | posoo: HERE COMS morfudlan!
DA GAME is TOO WELL KNOWN!
WHO SAYS!?
ur INSANE puzzols r not just for people who know ALL DA GAMS in da dattabus! LET DA PEOPLE LERN morfudlian, it is NOT ALL ABOUT U! |
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| Oct-25-17 | | Marmot PFL: Not so simple as there several reasonable moves (Ng5, Bg5, Rh4) and the analysis of each is fairly deep |
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Oct-25-17
 | | kevin86: White's emerging attack wins it! |
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Oct-25-17
 | | Jimfromprovidence: Did not come close to getting this. Thought it might have been a spoiler. I really like 23 Rg4.
click for larger view It not only protects the knight but makes it untouchable as 23...hxg5 allows a forced mate beginning with 24 Qh5+. 
click for larger view |
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| Oct-25-17 | | cormier: 
click for larger viewAnalysis by Houdini 4
18...g6 19.Bg5 Be7 20.Bxe7 Qxe7 21.Re1 Red8 22.Qe2 cxd4 23.Be4 Nb3 24.Rxa8 Rxa8 25.Qxb5 Bxe4 26.Rxe4 Nc5 27.Re1 Ne6 28.Rb1 Qc7 29.Qd3 Rb8 30.Qd2 Qc4 31.Rc1 Qd5 32.h3 Rb3 33.Rc3 Rb8 34.Ra3 Qe4 35.Qd3 Qxd3 36.Rxd3 Kg7 37.Nxd4 Rxb2
⩲ (0.43) Depth: 28 |
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| Oct-25-17 | | cormier: 
click for larger viewAnalysis by Houdini 4: d 20
1. = (0.00): 14...cxd4 15.e5 <Nd5> 16.Nb3 Bb4 17.Re2 Nxb3 18.Qd3 Nxc1 19.Qxh7+ Kf8 20.Qh8+ Ke7 21.Qh4+ Kf8 22.Qh8+ Ke7 2. = (0.00): 14...c4 15.e5 <Nd5> 16.axb5 axb5 17.Nxc4 Nxc4 18.Bxh7+ Kxh7 19.Ng5+ Kg8 20.Rxa8 Qxa8 21.Qh5 Nf6 22.Qxf7+ Kh8 23.Re3 Nxe3 24.exf6 Nf5 25.Qh5+ Nh6 26.Nf7+ Kh7 27.Ng5+ Kh8 28.Nf7+ |
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| Oct-25-17 | | Yanoosh: It seems that white gave up to early. What if 24...Qe1+ 25. Kh2 Ne2 26. Qxe8 Qg1+ 27. Kh3 Qh1# |
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| Oct-25-17 | | cavalo: <yanoosh> think about 26. Nh3 |
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Kibitzing
sac: 20.Ng5