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Later Kibitzing> |
| Oct-17-12 | | dick50: After 19...Qe5, the best defense by Black, White would play 20 Nf3 when the black queen is forced to retreat. Thereafter White Bishop either returns safely or occupies g6. The gain from this maneuver is absolute control on g6 (Queen, Bishop or Knight can occupy decisively) and Passed pawn on e file. If Black offers exchanges in the middle game to reduce the tension, White can gleefully accept the same and march e pawn to Victory. |
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| Oct-17-12 | | sushijunkie: Missed it. I'm getting Chess-dumber as of late. I went for Bxb5. I saw some mating threats on the other side, but I didn't see the strongest of the sequences, so I went for material. I should know better here. At least I thought Nxf7 was better than Bxf7. Solace, maybe? <sigh> |
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| Oct-17-12 | | David2009: D Komljenovic vs N Legky, 1995 White 19.? 19.Bxf7 picks up a useful Pawn and threatens Qg6. GOOT! If 19...Rxf7 20.Qg6 R moves 21.Rxh6+ etc. I can't see a way out. Time to
check:
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Missed the forced mate after 19...Rxf7.
click for larger view
With the position in front of me I see that 19.Qg6 is a losing blunder - the B has been sacrificed so no longer controls g8 - Rxh6+ throws good material after bad - I pluck defeat out of victory. Yesterday I missed mates in one, today I miss mates in two, who knows what the rest of the week will bring? |
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Oct-17-12
 | | Oxspawn: How to fritter away a winning position
Forces are even but white has a fantastic attacking position. If the black knight could be shifted then it would be all over. White is threatening mate on h7, and if the black rook on f8 can be shifted, even a back rank mate. Meanwhile the black h pawn cannot take the knight and the black knight dare not move. But how to crack the resistance?
<19. Nxf7+ looks strong but after Rxf7
20. Bxf7 Qxf7
21. Rd8+ Ng8>
White is weaker in material and position than before.
I also tried
<19. Bxf7 Rxf7
20. Qg6 Rd7 (threatening a back rate mate itself)
21. Rxh6+ gxh6
22. Qxh6+ Rh7
23. Nf7+ Qxf7
24. Rd8+ Ng8>
And white would be home and dry if s/he had not run out of pieces and have to resign. Time to look…..
....So, I didn’t play Rd8+ at the right time because I did not see that it could not be retaken by the queen – because of Nxf7+. So I messed up but surely not quite so comprehensively as black did by playing 20....Ng8? |
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| Oct-17-12 | | Patriot: 19.Bxf7
19...Rxf7 20.Rd8+! Qxd8 21.Nxf7+ 
19...Rd8 20.Rxd8+ Qxd8 21.Bb3 with several threats. I'm not completely sure about this line and I'm out of time. |
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Oct-17-12
| | benveniste: I'm boring wood pusher. I couldn't work out all of the complications after 19. ♗xf7 ♕e5, so I chose the simple ♗xb5. |
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| Oct-17-12 | | zb2cr: Found this one quickly. |
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Oct-17-12
 | | gawain: I considered 19 Bxf7 but assumed that B would decline. I was stuck on trying to find something even more forcing. Greedy, I guess |
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Oct-17-12
 | | chrisowen: Straights easy c4 a more in 19.Bxf7 edifices right it calm in takes b5 white retains his lead for sake babylon gauge will fall swan-dive white has in better tell Legky wooden ode tasking black queen and rook both feckless in recapture f7 in dame it her in c7 falls too g5 counter-pragmatic rook finesse tread a mage down in eden tacks camp rookd1 slap into the middle now shuck ele level crow d8+ and black is loosing his after 20...Qxd8 21.Nxf7+ ear no invest-fund for kingg8 at go 22.Nxd8 duplicit rook stuck queen down 20...ng8 allows entrance to king h7 in game st-chaf, incher it you in b5 i man st rope takes f7! |
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| Oct-17-12 | | Tiggler: We would like to divert the Nf6, but no easy way to do it. Let's divert the Rf8 instead: 19. Bxf7 Rxf7?
20. Rd8+ Qxd8+
21.Nxf7+ - looks pretty good, wins Q + R + p for R + B So 19...Bb7
20. Qg6 with threat Rxh6 and # to follow
This must be the way. |
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| Oct-17-12 | | Tiggler: Hmm: expected a better fight than that from black. |
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| Oct-17-12 | | Tiggler: <Basically a case of spinning all the wheels until the three cherries came up.> Nice one <PhoniBenoni>! |
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Oct-17-12
 | | agb2002: The material is equal.
Black threatens 19... bxc4.
The black queen is overloaded since she protects the squares d8 and f7. This suggests 19.Nxf7+: A) 19... Rxf7 20.Bxf7
A.1) 20... Qxf7 21.Rd8+ Ng8 22.Rf4 Qe7 (22... Bf5 23.Rxf5 Qe7 24.Rxa8 + -) 23.Rff8 Be6 24.Rxa8 + - [2R+P vs B+N]. A.2) 20... Bb7 21.Qg6 + - [R+P vs N] (21... Rf8 22.Rxh6+ gxh6 23.Qxf6+ Kh7 24.Qg6+ Kh8 25.Qxh6#). B) 19... Kg8 20.Nxg6+ Kh8 21.Nf7+ Kg8 22.Rh8#. |
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Oct-17-12
| | agb2002: White loses a lot of advantage after 22... Qxa2, instead of 22... Qe7 in my line A.1. I should have paid more attention to White's back rank. |
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Oct-17-12
 | | kevin86: White forces black to interpose the knight and mates with his queen. |
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| Oct-17-12 | | Mr Pooter: I'm attracted to black responding 19 Rd8 which threatens whites baseline and should gain a tempo allowing black a fighting chance to defend with only a pawn down. Rxd8 is obviously followed by Qxd8 which is just as threatening. |
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| Oct-17-12 | | francis2012: ♗xf7! was a cute move by White Δ several mate. |
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| Oct-17-12 | | erniecohen: This problem is cooked. 19. ♘xf7+ is at least as strong as 19. ♗xf7, but neither one looks like a clear-cut win. After 19. ♗xf7 ♕e5 20. ♘f3 ♕e7 21. ♗g6 ♗g4 22. ♕xc6 ♖ab8 23. h3 ♖b6 24. ♕c2 ♗xf3 25. ♕xf3 ♘d7 26. ♖f4 ♖xf4 27. exf4 ♘f8 28. ♗e4 ♖d6 29. ♖xd6 ♕xd6: 
click for larger viewAfter 19. ♘xf7+ ♖xf7 20. ♗xf7 ♕xf7 21. ♖d8+ ♘g8 22. ♕d3 b4 23. ♕c4 ♗e6 24. ♖xh6+ gxh6 25. ♕d4+ ♕g7 26. ♕xg7+ ♔xg7 27. ♖xa8 ♗xa2 28. ♖xa7+ ♗f7:
click for larger view |
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| Oct-17-12 | | James D Flynn: Material is equal but Whites B is attacked .It can be defended by taking the b5 pawn, then 19.Bxb5 Bb7 (defends the c6 pawn and connects the Black rooks) .White is now a pawn up but his pieces are awkwardly placed unless he can mount an attack on the K-side. There is an alternate pawn capture that attacks the K-side:
19.Bxf7 Bb7(If Rxf7 20 Rd8+ Qxd8 21.Nxf7+ Kg8 22.Nxd8 and White has won Q for a B)20.Qg6(threat 21.Rxh6+ gxh6 22.Qxh6+Nh7 23.Qxh7# so Rxf7 is forced) Rxf7 21,Nxf7+ Kg8 22. Rxh6 Kf8(not Qxf7 23.Rh8+ Kxh8 34.Qxf7) 23.Rh8+ Ke7 24.Qxg7 (threat Nd6+ followed by Qxc7) Ne8 25.Rxe8+ Kxe8 26.Nd6+ Kd8 27.Nxb7+ Kc8 28.Nd6+ (ifKd8 29.Qf1+ Kd7 30.Qf7+ Kd8 31.Qe8#)Kb8 29.Qf8+ Qc8 30.Qxc8# |
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| Oct-17-12 | | erniecohen: <James D Flynn> See above - 19...♕e5 looks like the strongest defense to 19. ♗xf7. |
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| Oct-17-12 | | Moonwalker: Sadly I missed this.. The move I liked best was 19.Nxf7+ but things got a bit murky (for a Wednesday at least) so I gave up! |
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Oct-17-12
| | numbersguy70: Curiously, after letting Fritz run all day (to depth 26), 19.Bb3 is preferred by more than half a point. With black stuck defending, the rook on d1 can be brought to d4-f4-f6 to take out the heart of black's defense, the knight. |
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| Oct-17-12 | | TheBish: D Komljenovic vs N Legky, 1995 White to play (19.?) "Medium/Easy"
White wins with 19. Bxf7!, with the idea of following up with 20. Qg6 and 21. Rxh6+. If 19...Rxf7 20. Rd8+! Qxd8 (20...Ng8 21. Qh7#) 21. Nxf7+ Kg8 22. Nxd8. If 19...Bg4 20. Qg6 Rxf7 (20...Bxd1 21. Rxh6+ gxh6 22. Qxh6+ Nh7 23. Qxh7#) 21. Nxf7+ Kg8 22. Nxh6+ and wins. |
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| Oct-17-12 | | LoveThatJoker: 19. Bxf7! leaves White a pawn up, for if 19...Rxf7 20. Rd8+ Qxd8 (20...Ng8 21. Qh7#) 21. Nxf7+ and 22. Nxd8 LTJ |
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| Oct-18-12 | | erniecohen: I think that <numbersguy70> is right, that there's no reason to take on f7 at all. The game might continue 19. ♗d3 ♗g4 20. ♖xg4 hxg5 21. ♖xg5 ♖ad8 22. ♖xd8 ♖xd8 23. ♖xb5 ♖d1+ 24. ♕xd1 cxd5:
click for larger viewI think this position is stronger for White than what he gets from either of the captures on f7. So this problem is just ultra-cooked; the "winning combination" is worse than just retreating. |
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Later Kibitzing> |
Kibitzing
sac: 19.Bxf7