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Later Kibitzing> |
Aug-03-17
 | | ChessHigherCat: I just looked at the game and I didn't get all the way to the end because I would have taken twice on e6 with the knights and won the queen, but 3 minor pieces for the Q + 3 pawns probably isn't so great. Anyway, when in doubt, checkmate. |
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| Aug-03-17 | | TrueFiendish: 13. N (either) wins the Q too. Just busted... |
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| Aug-03-17 | | dfcx: 11.Bxh7 wins a pawn. Black must refuse the pawn or be mated. 11.Bxh7+ Kxh7??
12.Ng5+ Kg8 (longest defense)
13.Qh5 Nf8
14.Qxf7+ Kh8
15.h5 Bxg5
16.Ng6+ Nxg6
17.hxg6+ Bh6
18.Rxh6+ gxh6
19.Qh7# * |
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Aug-03-17
 | | al wazir: I wanted to go after the smothered ♕. For example, in the game line, 13. Nxe6 fxe6 14. Nxe6 Ba6 15. Nxd8 Raxd8. White has ♕+♙+♙+♙ vs. ♘+♘+♗, which ought to win. |
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| Aug-03-17 | | Walter Glattke: Refuse does not help, 11.-Kh8 or 11.-Kf8
get deciding attack, too. |
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Aug-03-17
 | | agb2002: Another example of the attack which starts with 11.Bxh7+: A) 11... Kxh7 12.Ng5+
A.1) 12... Bxg5 13.hxg5+ Kg8 14.Qh5 f5(6) 15.Qh8+ Kf7 16.g6#. A.2) 12... Kh6 13.Qh5#.
A.3) 12... Kg8 13.Qh5
A.3.a) 13... Bxg5 14.hxg5 transposes to A.1.
A.3.b) 13... Nf8 14.Qxf7+ Kh8 15.Nxe6 Bf6 (15... Nxe6 16.Qh5+ Kg8 17.Qh7+ Kf8 18.Qh8#) 16.Nxd8 wins decisive material. A.3.c) 13... Nf6 14.Qxf7+ Kh8 15.Ng6#.
A.4) 12... Kh8 13.Qh5+ Kg8 14.Qh7+ (or 14.Qxf7+ Kh8 15.Ng6#) 14... Kf8 15.Qh8#. B) 11... Kh8 12.Ng5
B.1) 12... Bxg5 13.hxg5
B.1.a) 13... Qxg5 14.Ng6+ wins decisive material. B.1.b) 13... Nf8 14.Bg6+ Kg8 15.Rh8+ Kxh8 16.Qh5+ Kg8 17.Bxf7#. B.2) 12... Rf8 13.Qh5 and mate soon (13... Bxg5 14.hxg5 Re8 15.Bg6+ Kg8 16.Qh8#). B.3) 12... Qc7 13.Qh5 again with a winning attack. C) 11... Kf8 12.Ng5, with an extra pawn and attack, looks similar to previous lines. |
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| Aug-03-17 | | Boerboel Guy: It's full-time for Mohyla ! |
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| Aug-03-17 | | leRevenant: Foltys didn't falter. |
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| Aug-03-17 | | WorstPlayerEver: Mährisch-Ostrau was held in 1940 according to wiki https://en.m.wikipedia.org/wiki/194... |
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| Aug-03-17 | | gofer: The bishop sacrifice on h7 is <too> attractive. It is like an old friend
that we want to be the answer regardless of whether it is or not. I wonder
how many of us see the sac and only look at the combiniations from that
point on, I certainly found it difficult...
<11 Bxh7+ ...>
11 ... Kh8/Kf8
12 Bg6 
<11 ... Kxh7>
<12 Ng5+ ...>
12 ... Bxg5
13 hxg5+ Kg8
14 Qh5 mating
<12 ... Kg8>
<13 Qh5 ...>
13 ... Bxg5
14 hxg5 Kf8
15 Qh8+ Ke7
16 Ng6+ fxg6
17 Qxg7#
<13 ... Nf8>
<14 Qxf7+ Kh8>
<15 Nh5 Bf6>
<16 exf6! ...>
16 ... Qc7/Qd7/Qe7/Re7 17 fxg7#
<16 ... Qxf6>
<17 Nxf6 gxf6>
<18 Qxf6+ Kg8>
<19 Qf7+ Kh8>
<20 Qxe8 Bb7>
<21 Qf7 ...>
Okay, white is clearly winning and will eventually set up
1 Bh6 any move 2 Qg7# against which there is no defence,
but it will take a while, but black can probably resign at
this point...
~~~
Okay, I missed <dfcx>'s <15 h5>, which is rather nice! |
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| Aug-03-17 | | whiteshark: There are 3 necessary criterias for a Bxh7+ sacrifice, and here there are 6 of them, <11.Bxh7+!!>, and that's it. |
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| Aug-03-17 | | offramp: I went with 11. b3, to tighten the grip on c4. |
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Aug-03-17
 | | patzer2: When I saw today's Thursday puzzle position (11. ?), I immediately thought of two words: demolition and charge. By that I meant sacrifice the Bishop in a demolition combination with 11. Bxh7+! Kxh7, and then follow-up with the Knight with 12. Ng5+ to clear the way for the advance of the Queen with 13. Qh5 . It wasn't until 14...Kf8 that I really had to give the combination more than a moment's thought, before I realized it's mate-in-three after 15. Qh8+ Kf7 16. Ng6+ fxg6 17. Qg7#. P.S.: Black's decisive mistake appears to be 9...b6?, allowing 10. h4! (+1.80 @ 27 depth, Stockfish 8.) Of course 10...Re8?? allowing 11. Bxh7+! (+5.31 @ 28 depth, Stockfish 8) made it even easier for White. Instead, 9...cxd4 10. cxd4 Bb4+ 11. Kf1  (+0.95 @ 27 depth, Stockfish 8) and 10...g6 11. h5 g5 12. Ng6 to (+1.72 @ 28 depth, Stockfish 8) put up more resistance. Earlier for Black in this French Defense, I prefer the popular move 7...cxd4 as in the recent draws in J C Schroeder vs A Ra Harikrishnan, 2017 and Lin Chen vs Yiye Wang, 2017 or Black's win in Aditya Munshi vs Graham J Moore, 2017. |
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| Aug-03-17 | | stacase: 8. ...O-O was Black's downfall. I wouldn't have done it - nearly all of White's power was focused on breaking that side of the board wide open! |
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Aug-03-17
| | takchess: Busted on this one.... didn't see that black can't take knight due to the pawn x g5+. I didn't take into account the h file rook. As Purdy said sometimes it is more important to look around than to look ahead...... A sweet combination. |
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| Aug-03-17 | | malt: 11.B:h7+ Kf8 12.Ng5 B:g5 13.hg5 g6 (13...Q:g5 14.N:e6+ )14.N:g6+ fg6 15.B:g6 11... Kh8 12.Ng5 Nd:e5 (12...Rf8 13.Qh5 B:g5 14.hg5) 13.de5 B:g5 14.hg5 < 11...K:h7? 12.Ng5+ Kg8 (12...B:g5 13.hg5+ and 14.Qh5 )13.Qh5 B:g5 14.hg5 Kf8 15.Qh8+ > |
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| Aug-03-17 | | StevieB: Good example why the French defense ain't so hot. |
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Aug-03-17
 | | kevin86: In the old notation (Bxpch Kxb N-n5+ wins horray! |
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Aug-03-17
 | | AylerKupp: <StevieB> Particularly when you're oblivious to the dangers of a White bishop on d3, an open b1-h7 diagonal, a White rook on h1, and an advanced Ph4 ready to advance and open the h-file, particularly with no knight on f6 or f8 defending h7. One could almost think that Black had never played the French before. |
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| Aug-03-17 | | morfishine: <11.Bxh7+> Standard stuff vs French dedense |
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| Aug-03-17 | | ColeTrane: The real beauty is 16. Ng6 |
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Aug-03-17
| | patzer2: <stacase: 8...O-O was Black's downfall.> I'm not particularly fond of Black's position after 8...0-0, allowing 9. Nf5 +/- (+0.93 @ 28 depth, Stockfish 8), even though I'm also not convinced the second player's hopelessly lost at that point. Still, I agree with you that Black should be able to improve over 8...0-0. It's possible Black might catch White unprepared and get a decent game after 8...Qb6 (the most popular reply to 8...0-0) as in Blacks's win in D Vella vs M Chogdov, 2010 or after 8...a5 (the second most popular reply to 8...0-0) as in the draw in F Braeuer vs M Michna, 2016. However, after the Stockfish 8 best moves 8...Qb6 9. 0-0 0-0 10. a3 +/- (+0.72 @ 28 depth) or 8...a5 9. h4 10. Rh3 Ba6 11. Bxa6 Rxa6 12. Rg3 +/= (+0.46 @ 28 depth) I still find Black's position unpleasant. For this reason, I prefer to look one move earlier to the very popular move 7...cxd4 (to view the overwhelming, majority, Master preference for this move click on Opening Explorer) for a Black improvement. |
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Aug-03-17
| | Yuridmi: Nothing is new under the Sun or Caissa's gaze. This position is #958 in Fred Reinfeld's 1955 classic, "1001 Brilliant Chess Sacrifices and Combinations." Check it out: https://www.scribd.com/doc/19962553... Back in 5th grade (~ 1968) I struggled to solve this position. |
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Aug-03-17
 | | drollere: i started with 11. Nxe6 as the pawn recapture is forced to save the Q and this clears the QB diagonal. then 12. Bxh7+ follows as in the game (h6, 13. Bxh6 also destroys black's position). the end tactics appear to be the same, since instead of Ng6+ white has g6+. if Kxg6 then Qh5#, if Ke7 then Qxg7#. |
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| Aug-03-17 | | DarthStapler: I got the overall idea even if I didn't see every line |
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Kibitzing
sac: 11.Bxh7+