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Later Kibitzing> |
| Feb-22-04 | | karlzen: Yes, two losses of the exchange and two exchange sacs! Ironic indeed. |
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| Feb-22-04 | | midknightblue: Lawrence, same here!
By the way, why does it say white to move and win, I am pretty sure the game is not over after this slight advantage gained by rook for minor exchange. I think black still has chances. |
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| Feb-22-04 | | masterwojtek: How about this midknightblue...
White to move and win: Answear: 1.e4! |
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| Feb-22-04 | | erikcu: midknightblue, you are correct. The trick is maintaining the slight advantage once you get it, that is probably why black did not concede until the 53rd move. There were plenty of opportunities for white to lose it. I think the crux of this problem was to realize the peril that the rook was in once black moved 13. b6, and to see the immanent knight fork. |
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| Jan-14-08 | | D.Observer: 54. ♖xb3 ♗xb3 55. ♔xb3 and <White is assured of a ♕>. |
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| Sep-25-08 | | tacite: <Calli : what about 24...Ne3! How does white dislodge the knight? > 25. Nc4 and you force the exchange or the black Knight goes some where else. |
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| Jul-16-19 | | Stale.Mate: This was easy? |
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Jul-16-19
 | | al wazir: 16...Ba6 17. Nxd4 Nxd4 18. Bxa8 Be7!
Now if 19. Bb7 (what else is there?), then 19...Bxb7 20. Nxb7 Rb8 21. Nxc5 bxc5. Black has ♘+♗ vs. ♖+♙+♙.
Alternatively: 17. Ne5 Nxe5 18. Bxa8 Be7! 19. Bb7 Bxb7 20. Nxb7 Rb8 21. Nxc5 bxc5. |
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Jul-16-19
 | | agb2002: White has a bishop and a knight for the bishop pair. The black knight is defenseless and the black queen protects the bishop on f6. This details suggest 14.Qd5: A) 14... Qxd5 15.Nxf6+ Kg7 16.Nxd5 Rd8 17.Nd2 Bb7 18.Nc7 Rac8 19.Nb5 + - [N]. B) 14... Bd7 15.Nxf6+ wins a piece.
C) 14... Bb7 15.Qxd8 (15.Qd7 Rb8 seems to go nowhere) 15... Bxd8 (else 16.Nxf6+) 16.Nd6 C.1) 16... Rb8 17.Nxb7 Rxb7 18.Ne5 wins an exchange at least. C.2) 16... Ba6(c8) 17.Ne5 as above. |
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| Jul-16-19 | | groog: I rather enjoyed this long puzzle. As pointed out in previous posts, there were chances that white could slip up...but didn't. Accuracy is the key for the win. |
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| Jul-16-19 | | latebishop: It looks like al wazir has found a missed refutation of the whole combination! |
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Jul-16-19
 | | Jimfromprovidence: I also looked at 16...Ba6 but it seems that 17 Nd2, below, keeps the combination on track.
click for larger viewFor example, if 17...Be7, there is 18.Bxc6 Bxd6 19.Bxa8 Rxa8. 
click for larger view |
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Jul-16-19
 | | patzer2: Must have forgotten I'd seen this game 15 years ago, because I didn't see or consider 14. Qd5! +- which solves today's "easy" Tuesday puzzle. My attempt 14. Nxf6+ Qxf6 15. Ne5? (15. Nd2 =) 15...Qxe5 ∓ (-0.97 @ 31 ply) favors Black. P.S.: So where did Black go wrong? According to Stockfish 10, the decisive mistake was 13...b6? allowing 14. Qd5! +- (+1.57 @ 31 ply). Instead, conceding the loss of a pawn with 13...Be7 14. Nxc5 Qb6 15. Qc2 ± (+1.01 @ 31 ply) apparently puts up more resistance. Earlier, Black's weak 12...d4? 13. Ne4 ± (+1.03 @ 32 ply) gave White a positional advantage. Instead, developing with 12...Be6 = (0.00 @ 30 ply, Stockfish 10) would've held it level. |
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| Jul-16-19 | | saturn2: At move 13 black had made 8 pawn moves and white 4. |
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| Jul-16-19 | | zb2cr: I saw the offered Queen, with a fork winning a piece if accepted, but I failed to see the follow-up. |
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| Jul-16-19 | | malt: Come up with
14.Qd5 Bb7 15.Q:d8 B:d8 16.Nd6 Rb8 17.Nd2 |
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| Jul-16-19 | | et1: Not easy at all ! |
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| Jul-16-19 | | mel gibson: I didn't see that move.
Stockfish 10 saw it in 1 second.
It follows the game line & after 258 seconds it says: 14. Qd5
(14. Qd5 (♕b3-d5 ♗c8-b7 ♕d5xd8 ♗f6xd8 ♘e4-d6 ♗b7-c8 ♘f3-e5 ♘c6xe5 ♗g2xa8
♗c8-e6 ♗a8-g2 ♔g8-g7 b2-b3 ♗d8-c7 ♘d6-c4 ♖f8-e8 ♘c4-d2 ♗c7-d6 ♖c1-b1 g6-g5
a2-a3 ♗e6-g4 ♖f1-e1 a7-a5 ♗g2-f3 ♗g4-f5 ♘d2-c4 ♗d6-c7 ♘c4xe5 ♗c7xe5 ♔g1-g2
♗f5-d7 ♖e1-f1 ♗e5-d6 h2-h3 ♗d7-e6 g3-g4 f7-f5 ♖f1-e1 f5-f4 ♖e1-c1 ♔g7-f6
♗f3-e4 ♖e8-e7 ♔g2-f3) +1.78/40 258)
score for White +1.78 depth 40. |
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| Jul-16-19 | | TheaN: If this is the new standard of Tuesday I think the next few weekends is only going to be Carlsen combinations... That said, I envisioned the rather forced <14.Qd5 Bb7 (Qxd5/Bd7 15.Nxf6+ +-; Nb4 15.Qxa8 +-) 15.Qxd8 Bxd8 (else Nxf6+ +-) 16.Nd6> but here is where I feel this no longer qualifies a Tuesday: White is not necessarily winning something right here, and we're three moves in. Black played the more straightforward 16....Bc8 17.Ne5 ± which instantly gains White the exchange, but <16....Ba6!> requires White to find <17.Nd2! ±> which I did <not>. I went with the prosaic <17.Ne5? Nxe5 18.Bxa8 Be7! ∓<>> missing the final move simply due to scope. Interesting long diagonal pressure. A Tuesday? Probably not. |
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Jul-16-19
 | | dorsnikov: Why do you put Saturday or Sunday puzzles on Tuesdays and call them easy? |
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| Jul-16-19 | | whiteshark: Missed the justificating tactic of and also the move 14.Qd5 itself. |
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Jul-16-19
| | al wazir: <Jimfromprovidence: I also looked at 16...Ba6 but it seems that 17 Nd2, below, keeps the combination on track.> You're right. Thanks. |
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| Jul-16-19 | | Cibator: I've seen it observed somewhere that a bishop-pair can be very nearly the equal of rook + knight, especially if there are no bishops to oppose them. |
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| Jul-16-19 | | Everett: WTH that was not Tuesday material |
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Jul-16-19
 | | Breunor: I was surprised white sacced the exchange back with 32 Re5, but it is considered best by Stockfish. The tactical play early was neat, but this was also a great endgame, where he emerges with all of his pawns arrayed to make the black bishop weak. |
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Kibitzing
sac: 32.Re5