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< Earlier Kibitzing · PAGE 2 OF 2 ·
Later Kibitzing> |
| May-21-11 | | cyclon: Let's start with 15.Rxe6 this time ; -Ng4 ( or -Nfd7. Accepting the "quality"-sacrifice after 15. -fxe6 16.Ng5 all Black's responses in my view leads mostly to mate or at minimum material losses to him PLUS taxes. 16. -e5 17.Nxh7 e4 18.Ncxe4 and losses can't be avoided - also moves like 16. -Bf8/-Ng4/-Nbd7-Nd5/-Nh5/-Q- [except -Qa5 17.d5 cutting off Queen from -h5, followed by 18.Nxh7] will win for White some way or the other after 17.Nxh7 mostly mating to keep it reasonably short this time ) 16.Rxe7 (simply - moves 16.Rxg6 and 16.Ne5 are TOO risky and ucertain to my liking EVEN if they were plausible "somehow") 16. -Qxe7 17.Bg5 White has a small material plus and a good game - d5 is in the air. "Real" solution can be wilder, though. |
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| May-21-11 | | Ferro: I really see: 15. RxBe6, fxe6 |
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| May-21-11 | | cyclon: In the game-line, 17.b4!!. |
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| May-21-11 | | David2009: Krasenkow vs Rozentalis, 1997 White 15? 15 Rxe6 fxe6 and now Ne5 and Ng5 both look promising with (A) 16 Ng5 seeing (A1) 16...Ng4 17 Nxh7 Nxh6 18 Qxg6+ 1-0
and (A2) 16...Bf8 17 Nxh7 Kxh7 18 Qxg6+ Kh8 with a draw by repetition starting 19 Bxf8 Rxf8 20 Qh6+ but finding a win looks tricky.
Consider briefly (B) 16 Ne5 Bf8 with at best similar variations. Conclusion: we'll play line A and look for more OTB as
the position evolves. Time to check:
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Not sure if I've solved it or not. Puzzle position:
click for larger view
Crafty EGT link: http://www.chessvideos.tv/endgame-t...
The inventive EGT surprises me with 15 Rxe6 fxe6 16 Ng5 Ng4 17 Nxh7 Ne5! to reach 
click for larger view
and then gives me its customary pummelling first time round (18.Qg3 Qxd4 19.Rd1? Qh4!). Second time round I improve with 19.Bxg6 Qg4 20.Bxe8 Qxg3 21.hxg3 Kxh7 22.Bf4 Nd3 23.Bh5 Na6 and I am a Pawn up. Time for me to read the kibitzes to see the defences the EGT rejected. Meanwhile, enjoy beating the EGT (special kudos if you can win without silicon help). |
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| May-21-11 | | Ghuzultyy:
click for larger viewWhite has a good potential attack on kingside with a queen, 2 bishops, a rook and a knight. It is time to do something. Best tactic would be to weaken g6 in this one. <15.Rxe6!>
Black has to recapture with f pawn, weakening g6 pawn. <15...fxe6 16.Ng5!>
White threathens Nxh7. Removing defender of g6 pawn.
Black has two good defences.
A)<16...Ng5!?>
This one is more tricky than the other so let's start with this one. <17.Nxh7 Ne5!>
The idea was this move but white has no hurry to attack. <18.Qe2!>
White sacrifices another piece for even greater attack chances. <18...Kxh7 19.Qh5!>
You can feel that black is in big trouble now.
<19...Rh8 20.dxe5>
White's tactic hasn't changed. Still pressuring g6 pawn and asking for mate. <20...Qe8>
click for larger viewNext is 21.Ne2,Nf4 and black can't defend.
B)<16...Qa5!?>
Now, 17.Nxh7 is not possible. 17...Qh5! makes things bad for white. 
click for larger view<17.b4!!>
This doesn't happen a lot. Moving the b pawn allows kingside massacre. <17...Bxb4 18.Nxh7!>
Defender of black knight is gone so black can't play 18...Qh5??. <18...Qf5>
Only move that protects everything. But after exchanges white wins. <19.Qxf5 gxf5 20.Nxf6+ Kf7 21.Nxe6 Bxc3 22.Nc7! Bxa1 23.Be3! Na6 24.Nxa8> 
click for larger view |
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| May-21-11 | | sevenseaman: White has a 5-move combination here that exploits good development versus a poor one. Richard Teichmann - Erich Cohn, Vienna 1908.
click for larger vieww in 5 Once you get the first move right it plays like clockwork. |
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| May-21-11 | | kevin86: A tough one! I saw the exchange sac,but missed the rest. |
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| May-21-11 | | APatzer: Found Rxe6 - to my amazement, since, i am a patzer. |
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| May-21-11 | | Ferro: After 16. Ng5,
16...Na6, 17. Nxe6 and 17...Nb4
QUIZAS -PERHAPS |
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May-21-11
 | | scormus: <LMAJ> Yes, easier than yesterday but not all that easy. Fist 2 moves are completely natural but I didnt think B would play 16 ... Qa5, then 17 b4 was a bomb. I was more concerned about 16 ... Bf8 but now I look again I see 17 Nxh7 Kxh7 18 Qxg6+ Kh8 19 Bg5 is winning. So I dont see that B can do much BTW how can something that Nige didnt get when he was at his peak and really trying against GK be anything except Insane? |
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May-21-11
 | | doubledrooks: I saw 15. Rxe6 fxe6 16. Ng5 Bf8 17. Nxh7 Bxh6 18. Qxg6+ Bg7 19. Nxf6+ Qxf6 and now I missed that the rook on e8 is en prise. Close, but no cigar! |
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| May-21-11 | | psmith: <sevenseaman> I think that is called mate in 3. (Each w-b move pair is one move in this count.) And yes, I see it this time. |
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| May-21-11 | | Ferro: I see: 16. Ng5, Nbd7 17.Nxf7, Nf8 18.Bxf8, Bxf8 19.Nxf8, Kxf8... etc |
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| May-21-11 | | agb2002: From a Queen's Gambit Game, I think.
The material is even.
Black threatens to simplify the game with ... Bf5.
The first move that comes to mind is 15.Rxe6 to eliminate one of the best defenders. After 15... fxe6 16.Ng5 White threats 17.Nxh7 followed by 18.Qxg6: A) 16... Bf8 17.Nxh7
A.1) 17... Bxh6 18.Qxg6+ Bg7 (18... Kh8 19.Nxf6) 19.Nxf6+ Qxf6 20.Qxe8+ + - [2P]. A.2) 17... Nxh7 18.Qxg6+ and mate next.
A.3) 17... Kxh7 18.Qxg6+ Kh8 19.Bg5 Bg7 20.Bxf6 Qxf6 21.Qh7#. B) 16... Qa5 (trying Qf5 or Qh5) 17.b4 (17.d5 Nbd7 18.Nxh7 Ne5 looks unclear) B.1) 17... Qxb4 18.Nxh7 followed by Qxg6 winning.
B.2) 17... Bxb4 18.Nxh7 Qf5 19.Qxf5 exf5 20.Nxf6+ Kf7 21.Nxe8 Bxc3 22.Nc7 Bxa1 23.Nxa8 followed by Bf4 and Nc7 + - [B]. B.3) 17... Qf5 18.Qe3 Qxc2 19.Qxe6+ Kh8 20.Qf7 Rg8 21.Qxf6+ Bxf6 22.Nf7#. C) 16... Nbd7 17.Nxh7 Nf8 18.Nxf8 Bxf8 19.Qxg6+ Kh8 20.Bg5 Qd7 21.Bf6+ B(Q)g7 22.Qh7#. |
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| May-21-11 | | dzechiel: Got the 15 Rxe6 and 16 Ng5. Didn't see black's responses beyond that. |
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| May-21-11 | | Ghuzultyy: <psmith>;
It is mate in 5 not 3 |
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| May-21-11 | | TheBish: Krasenkow vs Rozentalis, 1997 White to play (15.?) "Difficult"
Doing this "on the fly", but it looks like 15. Rxe6! is very strong, e.g. 15...fxe6 16. Ng5, threatening 17. Nxh7 and 18. Qxg6+. |
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| May-21-11 | | stst: Difficult part might be to find the most resistant move by Bk after RxB and later Ng5.
Two simpler variations go like:
15.RxB PxR
16.Ng5 Bf8
17.NxP BxB (tougher than NxN, see below)
18.QxP+ Kh8
19.QxB Qe7
20.NxN dis+ Qh7
21.QxQ#
If @17...NxN
18.QxP+ Kh8
19.Qxh7#
Therefore Bk has to try to block/exchange W's Q:
@16.Ng5 Qa5 (just there's an unblocked diagonal)
17.b4 (try to divert Q) Qf5 (attempting to block W Q)
18.Qe3 (somewhat better than Qg3) then Bk has no defense against QxP+ while Q is under fire by W B@c2.
Obviously if 18.. QxB, 19.Qxe6+ would be overwhelming... |
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| May-21-11 | | WhiteRook48: aw man, I suck, I only got 15 Rxe6. |
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| May-21-11 | | Dr. J: <Phony Benoni: ... You might need to find a defense to 16...Bf8 as well as the text move 16...Qa5 to claim full credit. The continuation after 17.Nxh7 Bxh6 18.Qxg6+ Bg7 is not obvious.> It most certainly is not. Has anyone found any way to proceed against this defense?? |
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| May-21-11 | | sevenseaman: <psmith:<sevenseaman> I think that is called mate in 3. (Each w-b move pair is one move in this count.) And yes, I see it this time.> Its mate in 5 as <Ghuzultyy> also suggests. There are 4 w-b pairs and one last (mating) w move. If you got it in 2 pairs and a half, there is a problem to be set right. Here are the moves. 1. Qxf7+ Kxf7
2. Nh6+ Kf8
3. Rg8+ Ke7
4. Rg7+ Kf8
5. Rf7#
As I always say, communication is the signature of life. |
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| May-21-11 | | sevenseaman: < Dr. J: <Phony Benoni: ... You might need to find a defense to 16...Bf8 as well as the text move 16...Qa5 to claim full credit. The continuation after 17.Nxh7 Bxh6 18.Qxg6+ Bg7 is not obvious.> It most certainly is not. Has anyone found any way to proceed against this defense??> One variation is,
16. Ng5 Bf8
17. Nxh7 Bxh6
18. Qxg6+ Kh8
19. Nxf6 Qe7
20. Qxh6+ Qh7
21. Qxh7#
Or 19... Re7 20. Qxh6 Rh7 21. Qxh7# |
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| May-22-11 | | Dr. J: <sevenseaman> The point of <PB>'s line is 18...Bg7, not 18...Kh8 |
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| May-23-11 | | psmith: <sevenseaman> <Ghuzultyy> You're right. Sorry. And thanks. |
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| May-24-11 | | sevenseaman: < Dr. J: <sevenseaman> The point of <PB>'s line is 18...Bg7, not 18...Kh8> . Late in reading your comment. Ok, here it goes. 16. Ng5 Bf8
17. Nxh7 Bxh6
18. Qxg6+ Bg7
19. Nxf6+ Qxf6
20. Qxe8+ Qf8
21. Qxe6+ Kh8
22. Qh3 Kg8
23. Qh7+ Kf7
24. Bg6+ Kf6
25. Re1 Nd7
26. Ne4+ Ke7
27. Nc5+ Kd8
28. Ne6+ Kc8
29. Nxf8 Bxf8
30. Re8 Kc7
31. Rxa8 1-0 |
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Kibitzing
sac: 15.Rxe6