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Later Kibitzing> |
| Nov-07-12 | | M.Hassan: "Medium/Easy"
White to play 23.?
White is a piece (Bishop) down
I studied 23.Qh5 but I arrived at a draw conclusion:
23.Qh5 Qe8 the only move defending mate
24.Rxb7 Kg8
25.Qxb5 Qc8
26.Rxb6 Qc1+
27.Qf1 Qb2
28.Qe2 Qc1+
29.Qf1 Qb2
1/2 1/2
I then went for the Knight move that had initially triggered some thought and got better results: 23.Nxe6+
<if...fxe6 24.Qg7+ with mate next move>
23............Ke8
24.Nc7+ Kf8
25.Nxa8 Bxa8
26.Qh5 Qe8
27.Ra7 Kg8
28.Rxa3
White that was behind at the end of move 22, is now ahead by a Rook+pawn for a Bishop but:
28...........Qe4
threatening mate on g2
29.Rxa8+ Qxa8
30.Qxb5 Qxa2
31.g3
White has a better pawn structure and can win.
Check now
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!!!!! |
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Nov-07-12
 | | FSR: White wins in "Granda" fashion: 23.Nxe6+! Ke8 (23...fxe6 24.Qg7+ Ke8 25.Qf7#) 24.Ng7+ (alternatively, 24.Nc7+ and 24.Rc7 also look winning) 25.Nh5 (threatening 25.Qg7+ Ke8 26.Qxf7#) Bd5 (25...Qe8 26.Qg7#; 25...Ke8 26.Nxf6+ Kf8 27.Qg8#) 26.Qg7+ Ke8 27.Nxf6#. |
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Nov-07-12
| | FSR: <<White wins in "Granda" fashion: 23.Nxe6+! Ke8 (23...fxe6 24.Qg7+ Ke8 25.Qf7#) 24.Ng7+ (alternatively, 24.Nc7+ and 24.Rc7 also look winning)> Once: ... With Fritzie's help, how many ways are there to win? First he says that 23. Nxe6+ is the only first move. Others are equality at best. After 23...Ke8, he finds three winning moves - 24. Ng7+ (#7), 24. Nc7+ (#12) and <LTJ's> 24. Rc7 (+7.46).> I rule. For today, anyway; tomorrow is doubtless another story. |
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| Nov-07-12 | | morfishine: White is down a piece; This is offset by Black's passive rook plus the fact
White is on the move, on the attack, and enjoys a positional tactic: <23.Nxe6+> The Knight is immune due to 24.Qg7+ Ke8 25.Qf7 mate; <23...Ke8> Forced
<24.Nc7+> Here, White has to be careful: Wrong would be 24.Rd8+ Qxd8
25.Nxd8 Kxd8 26.Qd4+ Kc7 and Black has R+2B vs Q; The main point of
24.Nc7 is to keep the Black King and Queen out of <e8> <24...Kf8> Practically forced (24...Qxc7 25.Rxc7 is hopeless for Black) <25.Qh5> Mate threat at <f7> <25...Be7> The point of 24.Nc7: The Black Queen cannot defend <f7> from <e8> <26.Qxh7> The mate threat at <h8> is unstoppable; A very interesting final
position:
click for larger view********
Wow, what a great surgeon-like finish by White! I considered <24.Ng7+>
but failed to appreciate the strength of <25.Nh5> |
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| Nov-07-12 | | gofer: White is a piece down, but has a strong attack on the isolated king. <23 Nxe6+ ...>
23 ... fxe6
24 Qg7+ Ke8
25 Qf7#
<23 ... Ke8>
<24 Nc7+ ...>
At which point black is starting to sweat - profusely. 24 ... Kf8
25 Qh5! mating
Taking the knight is the only way to offer a little resistance! <24 ... Qxc7>
<25 Rxc7 ...>
and even that path doesn't offer much resistance!
25 ... Bd5?
26 Qd7+ Kf8
27 Qxd5 
~~~
Ng7+ was much cleaner! |
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| Nov-07-12 | | ventricule: I went for 24. Ng7 + and then 25 Qh5, mixing the ideas in both lines. Does it work ? I cannot seem to see an escape for black. |
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| Nov-07-12 | | zb2cr: Found this one quickly. |
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| Nov-07-12 | | backyard pawn: <LTJ> I was intrigued by your alternative line:
<23. NxP+! K-K1
24. R-QB7! QxR
25. NxQ+ 1-0, as this is promptly followed by 26. NxR .>In this line, would 24...., Bf8 save the position for Black? I'm almost afraid to ask, as I am prone to miss the obvious. |
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| Nov-07-12 | | James D Flynn: 23.Nxe6+ Ke8(not fxe6 24.Qxe6 Bd5 25,Qxf6 and the K is forced to move to e8 or g8 whereupon White mates by either Qe7# or Qg7#) 24.Ng7+ Kf8 25.Nf5 Bd5 26.Qg7+ Ke8 27.Re7+ Kd8 28.Qf8# |
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| Nov-07-12 | | Manoloo: The "Guess the move" must be "21. white to play": Nd4, beautiful! |
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| Nov-07-12 | | eric the Baptist: Kind of a tough one today. Actually requires 6 moves by white to complete the checkmate. Shame on you Minnesota. Yet another disgraceful performance at the voting booth. |
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| Nov-07-12 | | ferri1234: I found 23 Nxe6 Ke8 24 Nc7+ Kf8 25 Qh5 Bd5 26 Qxh7 and white wins. Am I wrong? |
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| Nov-07-12 | | James D Flynn: OOPS I overlooked the Black B on a3.
23.Nxe6+ Ke8 24.Ng7+ Kf8 25.Nf5 Bd5 26.Rxd5 White threatens to simply move his R back to d7 followed by mate on f7. This threat can be answered by Ra7 , Qb7, Qc7, or Qc8 all fail to 27.Qg7+ Ke8 28.Qg8+ Bf8 29.Nd6+ and White wins the Black Q or in the case of Ra7 the Black B. This is a prosaic win instead of the beautiful mate in the game. |
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| Nov-07-12 | | Bengambit: You know,in times and games like this,if your "Positional Correct" for a mating attack,go for it. White's first and second ranks is toast,but thanks to black's position his pieces would take forever to get in an good counter attacking position. There is a time when your backside is hanging out,and all you have left is an attack to save your "You Know What" from defeat. |
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| Nov-07-12 | | David2009: Granda-Zuniga vs R Rodriguez Lopez, 1995 White 23? White is a piece down so needs to win quickly if at all. 23.Rxf7+ probably won't work, White risks runnning out of checks and has at best a draw by repetition.
Black can play to win by 23...Kxf7 24.Qxe6+ Kf8! 25.Qxf6+ Ke8! 26.Qe6+ Be7. Instead 23.Nxe6 CHECK! is much better
(if it was not check, Black has the saving Qc8): 23...Ke8 forced (if 23...fxe6? 24.Qg7+! Ke1 25.Qf7#; instead 24.Qxe6? nearly mates but Black has Bd5) 24.Ng7+ and White has
at least a draw by repetition so can look for more OTB. Yes the win is there: 24...Kf8 25.Ne6+ Ke8 26.Nc7+ Kf8 27.Qf4 meeting 27...Kg8 or 27...Ke8 with 28.Qxf6 and 27...Kg7 with 28.Nxe6+.
Time to check and put the position up on Crafty End Game
Trainer:
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I got some of it- very rich puzzle position. Here it is
click for larger view
set up on Crafty End Game trainer: http://www.chessvideos.tv/endgame-t.... After 23.Ne6+ Ke8 24.Ng7+ Kf8 both 25.Nh5 and 25.Ne6+ Ke8 26.Nc7+ win easily against the EGT: in either variation the robot jettisons massive material to postpone mate. However this is more luck than skill. Here's the position after the variation 23.Ne6+ Ke8 24.Nc7+ Kf8:
click for larger view
Now my intended Qf4?? runs into - what? (a complete equalising move!)
Over to Crafty EGT to find the refutation if you don't spot it from the diagram: link to this variation with White to play is
http://www.chessvideos.tv/endgame-t.... You can also find the proper winning move (<Once's> post gives it if you get stuck). |
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| Nov-07-12 | | JRMenezes: the puzzle should have started from move 21.? not move 23? |
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Nov-07-12
 | | chrisowen: Energy in spades Granda abbott in lighter dig mind you knightd4xe6 in effect rook boy scouted seventh rank it hog in lace garage it her ba3 sets up the deadly combo in g7 h5 and f6 to round off pretty triangle game knight in got Nxe6+ king - evermore in a bus ke8 curious my attention drawn to knightc7 also g7 yeah I like to use my queen when I can " voodoo running from my magic " ill plump for the worm turns in case 24.ng7+ easier garrot in strangle kingf8 uncover g4 to protect rookd7 whoops white a minting knighth5 in " fatal flying guillotine " blackest back qb8 trapped in corner cant prevent rook and queen ganging together ba3 in exactly it hang in e7 white in gobble 26.qg7+ mated in too the knight heading resurgence in cadence 27.Nxf6+ alive to the threats cope right win e7 take f6 an flourish 28.Qxf7# |
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Nov-07-12
 | | LIFE Master AJ: I guessed 23.NxP/e6+, in about two seconds, (seeing that is Black took, Qg7+ and mate to follow); although I was not sure of the exact follow-up ... |
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| Nov-07-12 | | kevin86: This was much easier than yesterday's.
The knight check is obvious-though the gymnastics of the queen and rook and knight-are less so. White mates in two more moves. |
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| Nov-07-12 | | Alphastar: I went with 25. Nf5 instead of the game move 25. Nh5. It seems that my move wins as well, though not as fast (after eg. 25. ..Bd5!?). |
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| Nov-07-12 | | LoveThatJoker: <Once> Good post and thanks for the kind mention! <backyard pawn> Thanks for your note! I covered 24...B-KB1 in my solution post. 23. NxP+ K-K1 24. R-QB7 B-KB1 25. Q-N8 , was my line. Stockfish confirmed that White is winning by a country mile in this line, yet it states that 25. N-N7+ mates. LTJ |
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| Nov-07-12 | | agb2002: White has a knight for the bishop pair.
The first idea that comes to mind is 23.Qh5, threatening 24.Qxf7#. However Black can play 23... Be7. A more forcing option is 23.Nxe6+: A) 23... fxe6 24.Qg7+ Ke8 25.Qf7#.
B) 23... Ke8 24.Ng7+ (24.Nc7+ also wins but it looked slower to me because of 24... Qxc7 25.Rxc7 Bd5) 24... Kf8 25.Qh5 B.1) 25... Be7 26.Qxh7 and mate in two.
B.2) 25... Kxg7 26.Rxf7+ and mate next.
B.3) 25... Bd5 26.Qxd5 Kxg7 27.Qxf7+ Kh6 28.Qxf6+ Kh5 29.Rxh7+ Kg4 30.Rh4#. |
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| Nov-07-12 | | agb2002: According to Houdini 25.Qh5 is mate in six, only one move slower than 25.Nh5. |
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| Nov-07-12 | | stst: Quite an involved variation.
23.NxP+ ...
IF (A)....PxN, 24.Qg7+ Ke8, 25.Qf7#
IF (B)....Ke8, 24.Nc7+ QxN, 25.RxQ Bc8
26.Qe4+ Kd8 (here: if (i)Be7, 27.QxB#;
or if (ii)Kf8, 27.Qxh7 and mate next on Qh8)
27.Rxf7 Ra4, 28.Qh7 & mate next on Qh8. |
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| Nov-07-12 | | stst: Saw also Ng7+, should spell out the subsequent analysis too... |
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Kibitzing
sac: 21.Nd4