|
< Earlier Kibitzing · PAGE 3 OF 3 ·
Later Kibitzing> |
| Sep-07-12 | | agb2002: The material is equal.
Black threatens 16... Qxa2.
The black castle looks poorly defended. This suggests 16.Nf6+: A) 16... gxf6 17.exf6
A.1) 17... Kh8 18.Qh6 Rg8 (18... Ne6 19.Ng5 wins) 19.Ng5 Rxg5 20.hxg5 and mate soon. A.2) 17... Ne6 18.Qh6
A.2.a) 18... Qxa2 19.Ng5 Qa1+ 20.Kd2 Qa5+ 21.c3 Qd5+ 22.Kc1 + -. A.2.b) 18... f4 19.Ng5 Nxg5 20.hxg5 Q(B)f5 21.Qg7#.
A.3) 17... Ne4 18.Qh6 Nxf6 19.Qg5+ Kh8 20.Qxf6+ Kg8 21.Rxd7 wins a piece. B) 16... Kh8 17.Nxd7
B.1) 17... Nxd7 18.Rxd7 Qxa2 19.Qa3 + - [B vs P].
B.2) 17... Qxa2 18.Nxd7 Qa1+ 19.Kd2 Rfd8+ 20.Bd3 + - [B+N vs P]. |
|
| Sep-07-12 | | Patriot: 16.Nf6+ gxf6 17.exf6
17...Ne6 18.Qh6 Qxa2 (18...Kh8 19.Ng5  ) 19.Ng5 Qa1+ 20.Kd2 Qa5+ 21.c3 Qd5+ 22.Kc1 17...Qxa2 18.Qg5+
17...Nb3+ 18.cxb3
17...Nd3+ 18.Rxd3
I don't see a defense. |
|
| Sep-07-12 | | morfishine: Forcing is 16.Nf6+ gxf6 17.exf6 Ne6...but figured <18.Bc4> was the move |
|
| Sep-07-12 | | TheBish: Naiditsch vs Hoang Thanh Trang, 1998 White to play (16.?) "Difficult"
White wins with a crushing knight sacrifice:
16. Nf6+! gxf6
Or 16...Kh8 17. Nxd7 Nxd7 18. Rxd7 Qxa2 19. Qa3! and White is simply up a piece. 17. exf6 Ne6
Offering to give back the piece, in order to defend g7. If 17...Kh8 18. Qh6 Rg8 (...Ne6 is answered by the same move) 19. Ng5 Rxg5 20. hxg5 and mate is unavoidable. 18. Qh6!
Black is helpless against the coming attack with 19. Ng5 and two mate threats. 18...Rfd8 19. Ng5 Be8 20. Qxh7+ Kf8 21. Qh8#.
~~~~~~~~~~~~~
Wow, definitely missed the best defense for Black, but White was so winning, he could afford to give away a bishop to stop the perpetual check. Nice finish! |
|
| Sep-07-12 | | TheBish: Actually, there was no perpetual after all. White could have played 22. Kc1 Qe3+ 23. Rd2 Qe1+ 24. Kb2!, and Black is out of checks and can't stop mate, even by sacrificing his queen one move earlier (23...Qxg5 24. hxg5 Rfd8 25. Qxh7+ Kf8 26. Qh8#. |
|
| Sep-07-12 | | JG27Pyth: The defensive resource the engines find and which nearly all the kibitzers seem to miss is 17...f4! after which white can win back his piece and be up a pawn + a winning positional edge but there is no middle game mate to be had. |
|
| Sep-07-12 | | Dr. J: http://www.chessvideos.tv/endgame-t... I won as follows: 17 Nf6+ gxf6 18 exf6 f4 19 Qxf4 Ne6 20 Qh6 Nb4 (Not forced. I have no idea if it is best.) 21 a3 Rfd8 (Ditto.) 22 Nd4 Qc7 23 axb4 Qf4+ 24 Qxf4 Qxf4 25 c3 Bg4 26 Re1 h5 27 g3 Ne6 28 Nxe6 gxf6 29 Be2 Bxe2 30 Rxe2 Kf7 31 Re5 Rd5 32 Rxd5 exd5 33 Rf1 Ke6 34 Kd2 Rg8 35 f7 Rf8 36 Ke3 Rxf7 37 Rxf7 Kxf7 38 Kf4 Kf6 39 g4 and the win is certain. I mated in 25 more moves. |
|
| Sep-07-12 | | francis2012: This is my answer in this puzzle:
1. ♘xf6+! gxf6 (force move, ♔h8 results of losing of black bishop at d7) 2. exf6 f4 (to prevent ♕g5+) 3. ♕xf4 ♘e6 (to prevent ♕g5+) 4. ♕h6 ♘b4 (to prevent ♗d3) 5. ♘g5 (the winning move, so black try to counterattack with following line) ♘xa2+ 6. ♔b1 ♘c3+ 7. bxc3 ♕b6+ 8. ♗b5! (♔c1 ♕d3+ 9. ♖d2 ♕e1+ 10. ♔b2) ♕xb5+ 9. ♔c1 and now black's counterattack is stop, the mate of his ♔ is unavoidable, White threats ♕xh7+#, if black take the white's knight 9. ...♘xg5 10. ♕g7+#, if black sac his queen 9. ... ♕xg5+ 10. hxg5 (opening the rook h-file and Δ ♕xh7+#, if black move his rook in f-file, e.g. 10. ... ♖fe8/♖fd8/♖fc8/♖fb8 11. ♕xh7+ ♔f8 12. ♕h8+#) mate is still unavoidable. so, no matter what Black's answer to White's move Nf6+! is still White will wins! |
|
| Sep-07-12 | | Tiggler: After the excitement of the Olympiad today, I came to this puzzle only just before it will disappear and be replaced by tomorrow's. Nevertheless, I think I got most of it, though I have yet to read the other posts, which doubtless will reveal wrinkles that I missed. In the game score, one one such wrinkle: I missed the clever 22. Bb5. I don't think it matters, because 22. Kc1 also seems to win in a similar fashion, though maybe a move or two more. It seemed to me one of those positions that plays itself: at each step up to the one I mentioned, only one move will do. So now I'll read to other posts to find all the nuances I missed. |
|
| Sep-08-12 | | Tiggler: <master of defence: Interesting note that white must play 22.Bb5, if 22.Kc1? Qe3+ and black have more chances to fight.> Really? 23. Rd2 Qe1+ 24. Kb2, then what? |
|
| Sep-08-12 | | Tiggler: <Al Wazir> already posted my last line: I am just working my way through them still. |
|
| Sep-08-12 | | M.Hassan: "Difficult"
White to move 16.?
Identical forces.
It is not difficult to see that g7 square is the critical square and that pawn and Queen combo can bring mate: 16.Nf6+ gxf6
17.exf6 f4
Black put obstacles on the way of Queen towards g file 18.Qxf4 Bf5
<if 19.Qxf5 Nb3+ and White Queen is captured>
<if 19.Qg5+ Bg6 20.Qh6 Ne6 protecting g7 square> 19.Rd5 Qxa2
20.Qxf5 Qa1+
21.Kd2 Qa5+
22.c3 Nb3+
23.Ke1 Re8+
24.Be2 Qa1+
25.Kf2 Kg3
White succeeds to hide the King from check. Black can take the h Rook and then it will be White's turn to attack which is devastating.
Time to check
-----------
My line is different but equally effective. |
|
| Sep-08-12 | | Tiggler: I saw Fritzy's move 17. ... f4, as reported by <Once>, but inexplicably missed 18. ... Ne6. I only looked at 18. ... Nb3+ and Nd3+. Nevertheless, two pawns is a substantial advantage here, particularly since white can be the one to chose to force the queens off with 20. Ng5 or 20.g4 |
|
| Sep-08-12 | | Tiggler: <dfcx: I could not beat Crafty.> Well, take heart: hardly anyone can with less than rook odds in most non-trivial endgames. |
|
| Sep-08-12 | | Tiggler: Apart from <Once>'s Fritz, I noticed that the following appeared to have found the critical 17. ... f4 move: <sevenseamen> <dfcx> <francis2012> and <M.Hassan> comprise the honor roll. Apologies to any others that I may have overlooked. |
|
| Dec-13-24 | | mel gibson: I saw the first few moves within 10 seconds.
Stockfish 17 says:
16. Nf6+
(16. Nf6+ (1.Nf6+ gxf6 2.exf6 f4 3.Qxf4 Ne6 4.Qh6 Nb4 5.Ng5 Qf5 6.Bd3 Nxd3+ 7.Rxd3 Qg6 8.Qxg6+ fxg6 9.Rxd7 Rxf6 10.Rxb7
Raf8 11.Nxe6 Rxe6 12.Rc7 Re2 13.g3 Rg2 14.Rc3 Kg7 ) +4.33/43 305) score for White +4.33 depth 43. |
|
| Dec-13-24 | | King.Arthur.Brazil: The king's first idea was: 16. Nf6+ gxf6 17. exf6 Ne6 18. Qh6 Rfd8 19. Ng5 Nf8 20. Qg7#. ( 19... Nxg5 20. Qg7# ). Otherwise, 16... Kh8 17. Nxd7 Nxd7 18. Rxd7 Qxa2 19. Qa3 with an extra piece. |
|
Dec-13-24
 | | scormus: <Phony Benoni: .... Don't think you can take full credit today unless you see that all the way through> I agree, after the very credible move, 17 ... Ne6, B certainly looks to have bought himself time to generate counter chances on the Q-side. In fact I was wondering if W might be in trouble there. It was crucial for W to see they could be dealt with. After 21 ... Qg6+, 22 Bb5 wasn't strictly necessary (22 Kf1 would have been OK) but a neat way of ending things. I didn't think of 17 ... f4, and I'm pleased B didn't play it. |
|
Dec-13-24
 | | chrisowen: If it vue it muck q it wart it sh it joy it Nf6 it ha it affable it packforth it afford Nf6 buff x |
|
Dec-13-24
| | chrisowen: Flying out to ok colorado. |
|
| Dec-13-24 | | Messiah: <chrisowen: Flying out to ok colorado.> Please stop. 🙏🙏🙏 |
|
Dec-13-24
| | chrisowen: No idle f6 |
|
Dec-13-24
| | chrisowen: Rocky colorado mountain high |
|
Dec-13-24
| | chrisowen: Nodding |
|
Dec-14-24
 | | noads4me: Phonii Gemini is no longer with us😕😕 |
|
 |
|
|
< Earlier Kibitzing · PAGE 3 OF 3 ·
Later Kibitzing> |
Kibitzing
sac: 16.Nf6+