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| Feb-26-12 | | CHESSTTCAMPS: I first looked at this late yesterday and found 24... Ng4! 25.Rxc6+ Bxc6 26.Qxf3! (Qe1?? f2+ 27.Rxf2 Rh1#) Bxf3 27.Rxf3 where the endgame is tricky. One possibility is 27... Rd1+ 28.Rf1 (Kg3?? Rh2#) Rxf1+ 28.Kxf1 Rh1+ 29.K moves Rb1 winning the b-pawn, but I'm not convinced this is a clear win. Time to review game and kibitzing... |
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| Feb-26-12 | | CHESSTTCAMPS: I think that <David2009> and I were both right: 26.Qxf3! is much tougher than 26.Bxf7, an over-finesse that forces white to surrender the bishop pair. |
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| Feb-26-12 | | sevenseaman: Thanks <once>. Yes we read the same dictionary, peccadilloes are small flaws of character. It takes lot of resolve to keep them out and away. We keep violating <CG>'s posting guidelines, at times rather grossly. You somewhere alluded to my handle thinking it has nautical connections. Far from it. The day I registered I had David Seaman, the famous England goalkeeper on my mind. I used to like his keeping that was only marred by a famous long distance goal scored against him by Ronaldinho in a WC semifinal(I think) against Brazil. I just added 7 before it, the number I like. That was it, 7cman. I like your avatar the best. Lot of bright light trying to pour through vertical slats (or slits)in an electric turquoise background. |
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Feb-26-12
 | | LIFE Master AJ: 24...Ng4! |
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Dec-27-19
 | | al wazir: Once again I got the first move but not the continuation -- despite having analyzed the game and posted on it when it was used in a previous puzzle. |
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| Dec-27-19 | | Jamboree: <CHESSTTCAMPS: I first looked at this late yesterday and found 24... Ng4! 25.Rxc6+ Bxc6 26.Qxf3! (Qe1?? f2+ 27.Rxf2 Rh1#) Bxf3 27.Rxf3 where the endgame is tricky. One possibility is 27... Rd1+ 28.Rf1 (Kg3?? Rh2#) Rxf1+ 28.Kxf1 Rh1+ 29.K moves Rb1 winning the b-pawn, but I'm not convinced this is a clear win.> I looked at that line as well, but the key is on move 29 where you say simply "29.K moves Rb1 winning the b-pawn," since actually after 29. Ke2! Rb1 30. Kd2!, now black can't take the pawn Rxb2 because Kc1! traps the rook. To avoid this, black has a subtle improvement: 26.Qxf3! Bxf3 27.Rxf3 Rd1+ 28.Rf1 Rh1+! 29. Kxh1 Rxf1+ 30. Kg2 and NOW 30. ... Rb1 and the king is too far way to trap the rook. Even so, it's well-known that 2 bishops are nearly equal to rook+knight in an endgame with open lines, so black does not have an easy win there at all. |
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| Dec-27-19 | | Walter Glattke: 21.-e4 is NOT -0.33, it is won for black. About -3.00. Monday puzzle, I think. |
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| Dec-27-19 | | tonim: Is this really friday puzzle ? 21. ... e4 is so natural and easy move to find. After 22. Bf4 exf3 white could play 23. Qxf3 with equal chances in middlegame. I don't get it. |
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| Dec-27-19 | | The17thPawn: Couldn't figure out how to handle 24. Qa7. |
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| Dec-27-19 | | Walter Glattke: 22.Bf4 Qc5+ 23.Nd4 Bg4 24.Qf3 Qh5 25.Kf2 Bxd1 / 23.Be3 Qh5 24.Nh5 QxQ or 24.Qg2 exf3, so -3.00 is always there, you'll get the knight. |
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| Dec-27-19 | | malt: 21...e4 22.Bf4 ef3 23.Q:f3
(23.B:c7 fe2 24.B:d8 ef1/Q+ )
Qc5+ 24.Be3 Qc7 (...Qe7 )
Prefer 21.Qc4 or 21.Ng5 to 21.fg3 |
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| Dec-27-19 | | mel gibson: I saw the first move and it looked powerful
but it wasn't.
Stockfish 10 is calling it close to a draw.
(21. .. e4
(e5-e4 ♗e3-f4 e4xf3 ♕e2xf3
♕c7-c5+ ♗f4-e3 ♕c5-e7 ♖d1-d3 ♗d7-b5 ♖d3-c3+ ♔c8-b8 ♖f1-e1 ♕e7-d7 ♗e3-f4+
♔b8-a8 ♖c3-c7 ♕d7-d4+ ♗f4-e3 ♕d4-e4 ♕f3xe4 ♘f6xe4 ♔g1-g2 ♘e4-f6 ♗b3xf7
♗b5-c6+ ♖c7xc6 b7xc6 ♗f7-g6 ♘f6-d5 ♗e3-c5 a6-a5 ♖e1-e4 ♖h8-h6 ♗g6-f5 ♖h6-f6
♖e4-e5 ♘d5-c7 ♗f5-d3 ♖d8-d5 ♖e5xd5 ♘c7xd5 ♗c5-d4 ♖f6-f7 ♗d3-g6 ♖f7-e7
♔g2-f3 ♔a8-b7 ♗g6-f5 ♔b7-c7 c2-c4 ♘d5-b4) +0.21/38 148) score for Black +0.21 depth 38 |
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Dec-27-19
 | | scormus: I see I'm not alone in finding the first move easy, but unsure about the continuation. 22 Bf4 is a perfectly natural reply (and according to White and Mel Gibson's SF) tbe move to play. I haven't yet run my engine on it, but I couldn't see what was wrong with 22 ... Qc5+. 23 Nd4 Bg5 and I don't see how White avoids loss of material. I suppose I need to run the engine to see why 22 ... Qc5+ doesn't work |
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| Dec-27-19 | | saturn2: White is up a piece. I reckoned after 21...e4 white can give back to piece fight for a draw 22. Bf4 exf3 23. Rxf3 (not Bxc7) Qb6+ 24. Be3 or 22 Qc4 or
22. Kf2 exf3 23. Qc4 |
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Dec-27-19
| | scormus: OK, so after 22 ... Qc5+ 23 Nd4 Bg5, W has 24 Qc4! which forces Q-exchange. B can pick up the exchange but not the loose N as well ..... |
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| Dec-27-19 | | King.Arthur.Brazil: I found 21...e5! but proposed 22...♕c5+ 23.♕f2 ♕h5. Black move is best because it recovers the piece ♘ and place a dangerous ♙ in f3. I also see the move 24...♘g4! which the line of the game seems forced, since any 25. ♕ move (e.g. ♕e1, ♕d2, ♕d4) then 25... f2+ 26. ♖xf2 ♖h1#. White cannot play 29.♖xf2 because of the sequence: 29... ♖d1+ 30. ♖f1 ♖h1+ 31. ♔xh1 ♖xf1+ 32. ♔h2 ♖f2+ 33. ♔g1 ♖xc2 34. ♗e5 g5!, where the game is over. However, I don't like the answer 29... ♖h2+, "bad players cannot avoid to give checks"! I prefer:
29...Rf7! Then, 30.♔xf3? g5, win the ♗. Maybe, it will follow: 30. ♖c1 g5 31. ♗xg5 ♖h2+ 32. ♔g1 ♖g2+ 33. ♔f1 ♖xg3. If 32.♔f1 ♖c7 33. c3 ♖xb2) 33.♗f4 ♖7xc2 34.♖xc2 ♖xc2 35. ♗e5 ♔d7 36. g4 ♔e6 37. ♗c3 ♔f7 38. g5 ♔g6 39. ♗f6 b5 40. ♔g1 a5 41. ♔f1 b4 42. ♔g1 a4 43. ♔f1 a3 44. bxa3 bxa3 45. ♗e7 ♖xa2 with easy win. |
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| Dec-27-19 | | Walter Glattke: I see, white is a piece ahead, so black wins the piece, but draw then. Have not count the pieces before. |
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Dec-27-19
 | | Jimfromprovidence: Instead of a puzzle we get a study. Here's the CG generated Stockfish
output.
1) -0.09 (31 ply) 21...e4 22.Bf4 exf3 23.Qxf3 Qc5+ 24.Be3 Qe7 25.Rd3 Bc6 2) +0.08 (31 ply) 21...Rh3 22.Qg2 Rdh8 23.Nh4 e4 24.Bf4 Qb6+ 25.Qf2 e3 |
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Dec-27-19
 | | agb2002: Black has a pawn for a bishop.
g3 is defenseless. This suggests e4, Rh3, Ne4 and Nh5. After 21... e4 22.Bf4 (22.Nd4 Qxg3+ 23.Qg2 Qxe3+) 22... exf3 23.Qxf3 (23.Bxc7 fxe2 wins a piece) 23... Qc5+ seems to recover the material only. I don't know. I'd probably would settle for 21... e4. |
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| Dec-27-19 | | Thief: <Walter Glattke: 21.-e4 is NOT -0.33, it is won for black. About -3.00. Monday puzzle, I think.> Need a lot more convincing to take your word over Stockfish 9's. |
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| Dec-27-19 | | SpamIAm: Black to play and gain a slight advantage. |
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| Dec-27-19 | | erichbf: Yes, I was keaning e4, but like others didnt see anything es po ecually forcing. But then having some like this fights the tendency to find a good looking move, because we know it must be there because this is a problem... |
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Dec-27-19
 | | patzer2: Black is down a piece in today's Friday (21...?) puzzle, and 21...e4! ⩱ is the only move to avoid a likely decisive White advantage. After 21...e4! 22. Bf4 exf4!, White goes wrong with 23. Qf2? allowing 23...Qc6 ∓ (-0.68 @ 36 ply, Stockfish 10). Instead of 23. Qf2? Qc6 ∓, White could have held it almost level with 23. Qxf3 Qc7 25. Bf4 ⩱ (-0.31 @ 36 ply, Stockfish 10). After 23. Qf2? Qc6 ∓, one bad move leads to another as White immediately follows up 23. Qf2? with 24. Rd6? allowing 24...Ng4! -+ (-2.38 @ 27 ply, Stockfish 9) for a decisive Black advantage. Instead of 24. Rd6? Ng4! -+, White could have secured practical drawing chances with 24. Qxf3 Rde8 25. Rxd7 Qxc6 bxc6 26. Bxf7 ∓ (-0.68 @ 36 ply, Stockfish 10). |
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Dec-27-19
| | patzer2: <Jimfromprovidence> After 21...Rh3, Stockfish 10 @ 34 ply gives 21...Rh3 22. Kg2 e4 23. Bf4 exf3+ 24. Qxf3 Bc6 25. Bxc7 Bxf3+ 26. Kxf3 Kxc7 27. Rxd8 Kxd8 28. Bxf7 ± (+1.37 @ 34 ply, Stockfish 10). White winds up with an extra pawn and a slightly better position in this line. |
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Nov-11-22
 | | plang: 13..Be5 was new; 13..0-0 is the main line. 16..Bxh2!? was certainly a risky play. An example of the danger to White would have been 18 Bg5..Bg4 19 Nf3..e4 20 Bxf6..Bxf3+ 21 Qxf3..exf 22 Bxg7 winning. 19..0-0-0? was a mistake that White did not take advantage of; 19..Kf8 would have been better. What White missed was 21 Qc4 which would have given White an advantage after 21..gxf+ 22 Bxf2..Bc6 23 Rxd8+..Kxd8 24 Qd3+..Kc8 25 Qf5+..Qd7 26 Qxd7+..Nxd7 27 Be1..f6 28 Be6. 24 Qxf3 would have avoided Black's beautiful finish and given White chances to hold. |
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Kibitzing
sac: 17...e5