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| Aug-19-17 | | ughaibu: Benzol: isn't that rather natural? After all, we pay good money to lose games in simuls. About the game, wouldn't it have been better to bring the rook in via h4? For example, at move 25... |
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Apr-10-21
 | | An Englishman: Good Evening: Interesting little brawl. Looked as if White might have proven amenable to a perpetual (e.g., 59.Kc5) in a few places. With Q & 2P v. 3 minors, White had a significant material edge after 18 moves; he might have made the game a little more difficult than necessary. |
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| Jul-27-23 | | Brenin: My line was 14 Nxf7 Kxf7 15 Nxf6 Bxf6 16 Qxe6+ Kf8 17 Bg6 Qe7 18 Qb3, and White has 2P for the piece, with Black tied in knots, waiting for an invasion with Q+2R along the e-file. Enough to win? I'm not sure. I didn't really consider 15 Ng5+, as sacrificing too many pieces. |
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Jul-27-23
 | | perfidious: This does not look terribly difficult; the 14.Nxf7 denudes the black king of cover, with no good way to decline the Greek gift. Acceptance is punished after 14....Kxf7 by 15.Ng5+ when the second offer may also be passed, for but a moment, as Qxe6 and Bg6 spell the end of the king, so ....Qe8 is forced, after which the material balance is Q+PP for three minor pieces, but there is yet work to do to bring the point home. |
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| Jul-27-23 | | jrredfield: To me 14 Nxf7 is obvious to prevent Black from castling unless Black doesn't accept the sac. So I see two lines: Black preserves Q-side castling: 14 Nxf7 Qd7 15 Nxh8 O-O-O 16 Nxf6 Bxf6 17 Bc4 Kb8 18 Bxe6. Black concedes loss of castling: 14 Nxf7 Kxf7 15 Nxf6 Bxf6 16 Qxe6+. Either way, White gains a significant lead. I'm not sure why White chose 15 Ng5+. With either of the lines above, I think White would have forced Black to resign much sooner. |
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| Jul-27-23 | | vajeer: I went with 14. Nxf6+ Bxf6 15. Nxf7 Kxf7 16. Qxe6+ Kf8 17. Bg6 Qe7 18. Qb3 Qd7 19. Re6 White will plan to play Rde1 followed by threats of Qa3+ and Re8+. Black doesn't seem to have any good defense against this. |
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| Jul-27-23 | | mel gibson: I chose 14. Nxf6+
Stockfish 16 agrees with me:
14. Nxf6+
(14. Nxf6+ (Ne4xf6+ Be7xf6 Ne5xf7 Qd8-d7 Nf7xh8 O-O-O Bd3-c4
Kc8-b8 Nh8-g6 Qd7-c7 Qe2xe6 Rd8-d6 Qe6-e3 c6-c5 d4xc5 Rd6xd1+ Re1xd1 Qc7xc5 )
+6.70/40 124)
score for White +6.70 depth 40.
if I force SF to play the game line it's only a little bit less in strength: 14. Nxf7 Kxf7
(14. .. Kxf7 (Ke8xf7 Ne4xf6 Bb7-c8 Nf6-g4 Be7-f6 Bd3-e4
h6-h5 Be4xc6 h5xg4 Bc6xa8 Qd8-d6 Qe2xg4 Rh8xh2 Qg4-f3 Rh2-h4 Ba8-e4 a7-a5
g2-g3 Rh4-h8 c2-c3 Bc8-d7 Re1-h1 Rh8-f8 ) -5.77/42 152) score for Black -5.77 depth 42. |
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| Jul-27-23 | | geeker: I also would have captured 14. N:f6+ before sacrificing on f7. But the game continuation is more beautiful and practically as strong. |
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| Jul-27-23 | | Allderdice83: I rejected the line played in the game, because Black gets 3 minor pieces for the queen and seems pretty well-defended. This was certainly no quick win; the combo starts on move 14 and the game went on until move 70. I looked at 14. Nxf6+ Bxf6 15. Nxf7 Kxf7 16. Qxe6+ Kf8 17. Bg6 Qe7 18.Qb3 Qc7 19. Re6. Black has a bishop for two pawns and has to find a way to get the rook on h8 into the game, maybe with h5 and Rh6, while White will increase pressure on the e file and look for a way to break through. I didn't find any clear win for White; I think Black can hold. It's a hard position for sure. |
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| Jul-27-23 | | agb2002: White has a bishop and a knight for the bishop pair. The vulnerable position of the black king invites to play Nxf7 or Nxf6+. In the case of 14.Nxf6+:
A) 14... Bxf6 15.Nxf7
A.1) 15... Kxf7 16.Qxe6+ Kf8 17.Bg6 Qc7(d5) 18.Qe8+ Rxe8 19.Rxe8#. A.2) 15... Qxd4 (threatens Qxb2#) 16.Qxe6+ Kf8 17.c3 Qd5 18.Qxd5 cxd5 19.Nxh8 wins decisive material. B) 14... gxf6 15.Nxf7 Kxf7 16.Qxe6+
B.1) 16... Ke8 17.Bg6+ Kf8 18.Qf7#.
B.2) 16... Kf8 17.Bg6 Qd5 18.Qxe7+ Kg8 19.Qxb7 wins decisive material. B.3) 16... Kg7 17.Qxe7+ Qxe7 (17... Kg8 18.Bc4+ wins) 18.Rxe7+ Kf8 19.Rxb7 wins decisive material. -----
In the case of 14.Nxf7 Kxf7 White has 15.Ng5+ hxg5 (else 16.Qxe6) 16.Qxe6+ Kf8 17.Bg6 Qd5 18.Qxe7+ Kg8 19.Qxb7 Rd8 20.Re7 and 15.Nxf6 Qd6 (15... Bxf6 and 15... gxf6 transpose to the lines above) 16.Qh5+. -----
I think I'd play 14.Nxf6+. |
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| Jul-27-23 | | tao46: Why did black give up? I don't see the winning line. |
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| Jul-27-23 | | agb2002: I missed 17... Qe8 in my line A.1. Can't believe it. |
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Jul-27-23
 | | scormus: What <Brenin> said |
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| Jul-27-23 | | phantasmagorium: I can only enjoy this game with awe. Even relatively weak GMs (such as Jansa) and many non-GM (such as Tröger) are a lot stronger than me, for sure. This game may not be perfect, but this kind of unequal material balance (like Q vs. BBN and Q vs. RBN here), alone, is enough to spook me. How can these folks judge correctly which was stronger in this case? Beyond me. But that is part of what makes this game so enjoyable to watch. |
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| Jul-27-23 | | phantasmagorium: Perhaps a more accurate term is _asymmetric_ material balance. |
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| Jul-27-23 | | Refused: Classical motif from the sicilian crashing in on e6 comes to mind. g6 looks like particularly juicy square for the bishop. Question is how to go about it. Starting with Nxf6+ or going straight for the jugular. Let's start with
14.Nxf7 Kxf7
a) 15.Nxf6 Bxf6 16.Qxe6+ Kf8 17.Bg6 Qe7 looks kinda promising, but there'S go to be a better way, with denying the queen access to e7. b) 15.Ng5+
b1)15...hxg5 16.Qxe6 Kf8 17.Bg6 Qe8 18.Bg6 Qe8 19.Bxe8 Rxe8 looks truely horrible for black. Three pieces for the queen would be ok, if black had some coordination in his position. But his King still feels like its the target on a shooting range with every single white piece having a go at it.
b2) 15...Ke8 16.Nxe6 Qd6 (black has to keep an eye on e7 somehow) 17.Nxg7+ and black can't defend against Nf5. Starting with 14.Nxf6+ Bxf6 15.Nxf7 Kxf7 16.Qxe6+ Kf8 17.Bg6 Qe7 transposes. I'd go with
14.Nxf7 Kxf7 15.Ng5+ |
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| Jul-27-23 | | Boerboel Guy: tao46: Why did black give up? I don't see the winning line. 71. Qxb6 ...that is why.... |
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| Jul-27-23 | | Mayankk: I saw 14 Nxf7 Kxf7 15 Nxf6 Bxf6 (15 ... gxf6 is likely worse as harder to defend the f7 square) 16 Qxe6+ Kf8 17 Bg6. White is now threatening mate at f7 as well as e8 if Queen moves elsewhere. So I thought the game may continue as 17 ... Qe7 18 Qf5 followed by doubling of Rooks on the e file. It seemed like a very strong position for White as the h8 Rook was practically out of action and the Black King in serious danger. |
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| Jul-27-23 | | Chesschronicle22: Good Aftermoon gentlemen, regarding the puzzle.
The first thing I saw was 14. Nxf7 and the follow ups, the rest was slightly unpredictable with rediculous accuracy by Jansa, respect. Also Regarding to Tao46 and Boerboel Guy, 71. Qxb6, correct, then if bishop takes, White makes a queen, not to mention the knight is attacked to by the queen, if Bb8, Qxd6 and the bishop still cant take the queen.
:0 And white can force trade a queen promotion with the bishop then/or go for checkmate. |
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Jul-27-23
 | | chrisowen: I'd math feck queen it is vous Nxf7 achtung match Nxf6+ it is a fig pug key adept one body it is tod axiom ko ajar Nxf7 ear Nxf6+ off; |
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| Jul-27-23 | | jrredfield: Komodo Dragon prefers 14 Nxf7, although it's pretty close. depth = 40:
+9.26 14.Nxf7 Qd7 15.Nxf6+ Bxf6 16.Nxh8 0-0-0 17.Bc4 Kb8 18.Bxe6 Qc7 19.Nf7 Re8 20.Qg4 a5 21.Ne5 Ka7 22.f4 h5 23.Qf5 Qd6 24.Bf7 Rd8 ... +8.36 14.Nxf6+ Bxf6 15.Nxf7 Qe7 16.Nxh8 0-0-0 17.Ng6 Qd6 18.Ne5 Re8 19.Ba6 Re7 20.c3 Bxa6 21.Qxa6+ Kb8 22.Qe2 Qd5 23.Qe4 Kb7 24.Ng6 Rc7 ... |
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| Jul-27-23 | | TheaN: I played <14.Nxf6+ Bxf6 15.Nxf7 Kxf7 16.Qxe6+ Kf8 17.Bg6 +-> pretty instantly and thought Black was done for until I spotted 17....Qd5: this requires 18.Qe8+! Rxe8 19.Re8# and I thought I was done. Missed <17....Qe7> entirely... I like SF's approach to just play <18.Re3! +-> with Rde1 and basically force the piece back, as Black cannot prevent mate after QxQ RxQ. Tl;dr, though Black temporarily prevents disaster, the rooks are out of the game and White can continue pressing. |
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| Jul-27-23 | | landshark: Rather than the game continuation, I had
14. Nxf6+ Bxf6 15. Nxf7 Kxf7 16. Qxe6+ Kf8 17. Bg6 ....
Which leaves B in a dilemma.
At first, I thought 17... Qe7 (which I missed during calculation but spotted right away when playing it through) would save him, but after
18. Rd3 Qxe6 (what else?) 19. Rxe6
B has no moves.
This looks like a more convincing win than what was played in the game -
Am I missing something? |
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| Jul-27-23 | | King.Arthur.Brazil: I saw the line: 14. Nxf6+ Bxf6 15. Nxf7 Kxf7 16. Qxe6+ Kf8 17. Bg6 Qc7 18. Qe8+ Rxe8 19. Rxe8# or 17... Qe7 18. Qb3 Qc7 19. Re6 c5 20. dxc5?! bxc5 21. Rde1 Bc6 22. Re7 Bxe7 23. Qf7# but Black can escape with 22...Qxe7 23.Rxe7 Kxe7 when there's no immediate mate. That's why White must ignore "c5", continuing with 20. Rde1 c4 21. Qe3 Bc6 22. Re8+ Bxe8 23. Qxe8+ Rxe8 24. Rxe8#. Again, Black can find some breathe with 18... Qd7! because of 19. Re6 c5 20. Rde1 Bc6 21. Qe3 cxd4 22. Qe2 Rc8... So, White will go into the sequence: 21. Re7 Qxe7 22. Rxe7 Kxe7 23. Qe3+ Kd6 24. Qf4+ Kd7 25. Bf5+ Ke8 26. Qd6 Be7 27. Bg6+ Kf8 28. Qxc6 Rd8 29. Qf3+ Bf6 30. Qb3 Ke7 31. Qf7+ Kd6... for wich I didn't find direct mate again. Maybe, White must have find a better way than mine. |
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| Jul-27-23 | | whiteshark: Jansa made life unnecessarily difficult for himself with <15.Ng5+?!>. |
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