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|Mar-08-11|| ||knight knight: Also missed 8...f6 as a defensive attempt.|
|Mar-08-11|| ||Mariusfj: 8 Sxe7!
A) 8...Sxe7 9 Dxd4
B) 8...h6 9 Sxc6 Dxg5 10 Sxd4
|Mar-08-11|| ||1.e4effort: If you're going to fianchetto you have to commit to being patient, otherwise, what is the point?|
|Mar-08-11|| ||David2009: D Andreikin vs Karjakin, 2010 White 8?|
Can't believe Karjakin fell for this one (8 Qxd4 etc): time to check how this
Blitz explains all. The move before the blunder:
click for larger view
(D Andreikin vs Karjakin, 2010 White 7?) After 7 Nxd4 f6! keeps losses down to one Pawn. AFter 8.Bxf6 Crafty End Game Trainer defends with 8...Bxf6 9.Nxf6+ Kf7 10.Nxc6 Nxc6 11.Nd5 d6 12.g3 Re8 13.Bg2 Ne5 14.b3 c6 15.Nc3 Qa5 16.Qd2 Bh3!?
This would be excellent if White could not castle (the EGT assumes castling is disallowed). After 17.0-0 Bxg2 we reach
click for larger view
(D Andreikin vs Karjakin 2010 variation, 18?) with a further Crafty EGT link
White to play wins (slowly but surely) starting 19 Kxg2. Enjoy finding the win aainst the robot!
For a really stiff challenge, try winning against the EGT from the move 7 position without castling. Link: http://www.chessvideos.tv/endgame-t.... Following the earlier line, I tried 17. Kf1 (instead of 17. 0-0 disallowed) but lost to the robot. Good luck if you try it out!
Postscript: nice analysis by the regulars of the puzzle position itself (raher than one move before as in my effort).
|Mar-08-11|| ||kevin86: Black steps aside from a two move mate by knight and bishop,only to fall into mate by the same forces in reverse order!|
A Monday queen-sac problem on Tuesday.
Hey! I got this one!
|Mar-08-11|| ||Oliveira: Funny to see a GM like Karjakin in the 2750+ elite getting caught into such a known trap.|
All these games ended the same way in the English:
And this one was in the Scotch:
B Blumenfeld vs NN, 1903
Idel Becker, a well-known chess writer in Brazil, also registers a game Hopkins vs NN, London, 1932, which ran identical to Blumenfeld's above.
|Mar-08-11|| ||CHESSTTCAMPS: In this opening position, white is temporarily down a piece, but black's play has left fatal weaknesses on critical dark squares, especially f6. Evidently black has just played 7...Bg7xd4 instead of 7... Nxd4 8.Bxe7 winning the queen. From the puzzle position, white simply plays:|
8.Qxd4! leaving no good defense.
Interesting but weaker is 8.Bxe7? Nxe7 9.Qxd4 O-O! 10.Nf6+ Kh8 (Kg7? 11.Ne8+ Kh6 12.Qh4#) 11.Nxd7+ f6 12.O-O-O Nf5 with counterplay. Of course, keeping the DSB on the board to exploit the weak dark squares makes much more sense.
A) 8... Nxd4? 9.Nf6+ Kg8 10.Bh6# is obvious. So is
B) 8... Rf8? 9.Nf6#
C) 8... Rg8? 9.Nf6+ Kf8 10.Bh6+ Rg7 11.Nxh7+ Ke8 12.Qxg7 wins.
D) 8... O-O 9.Nf6+ Kh8 10.Qh4 h5 11.Nxh5 gxh5 12.Qxh5+ Kg7 13.Qh6+ etc is a familiar winning tactic.
E) 8... f6! 9.Nxf6+ Kf7 10.Qf4 d6 11.Nd5+ Bf5 (Kg7? 12.Bf6+ Kxh7 13.Qh4+ etc) 12.Nf6 with +2P and threat of 13.e4.
More to this one, I think, than first meets the eye. Time to review...
|Mar-08-11|| ||stst: That's the first move I saw, not much Bk can do, nor, as one says, view it as a gym, today's a very light exercise, not much we extract from it.|
Since W's Q-B pair is already in a mating position, W's N cannot be taken either, otherwise QxR mate.
Maybe it's some fun we can muse ourselves--that Karjakin (among the top 10) allowed such a position (blitz though) in such an early stage, and the opponent is not too well-known (doubt if he's in the top 20 / 30 Elo list.)
Guess the editor wishes to give some candies occasionally (it's only Tuesday!)
|Mar-08-11|| ||BOSTER: Reading many comments in this site you can create the image that chess is collection of many simple rules. But if one from the top players in the world lost the game after 8 moves (even in blitz), maybe chess has something more then such "collection".|
|Mar-08-11|| ||YouRang: It doesn't pay to be lazy. :-(
After a quick glance I settled on 8.Bxe7, without giving serious considerations to other black options besides 8...Qxe7?
8...Bxf2+ -- Doh!
|Mar-08-11|| ||Akavall: I saw the right idea, but I missed 8...0-0.
I was taught [incorrectly] that one can't castle if the King or a Rook is under attack, and I played for a while thinking this was the rule. Until one day I was play a program, and it "cheated" by castling while I was attacking it rook. Perhaps this misconception still haunts me to this day.
|Mar-08-11|| ||patzer2: The threat of mate enables White to win decisive material with 8. Qxd4!, which solves today's Tuesday puzzle.|
|Mar-08-11|| ||MountainMatt: Missed it, but I don't feel too bad. Karjakin missed it too.|
|Mar-08-11|| ||WhiteRook48: ah, of course I played 8 Qxd4|
|Mar-08-11|| ||redorc19: this is similar to the trap in the famous morphy vs. andersson game... the knight on f6 and the bishop on h6 delivering mate is very artistic.|
|Mar-08-11|| ||fm avari viraf: I keep teaching such traps to my students but how come a young GM Karjakin could fall a victim to the kenspeckle 8.Qxd4! & the Black King is in shambles.|
|Mar-08-11|| ||Penguincw: A nice opening trap by Andreikin.|
|Mar-08-11|| ||Penguincw: < Marmot PFL: It had to be blitz (or blindfold) for Karjakin to lose like that. > It was blitz.|
|Mar-08-11|| ||swr: Andreikin discovered a nice trap originally played in 1928: Muller vs NN, 1928|
|Mar-08-11|| ||stefanoleccardi: I got it ! Qxd4 is not so difficult, the king has no escape case !|
|Mar-08-11|| ||gawain: It is astonishing that this should happen to a GM. Even in a blitz game. Wow.|
For the record, I did get this one--unlike yesterday's. The most spectacular available move turns out to be the right move, and it remained only to work out the consequences.
|Mar-08-11|| ||Dr. J: Even earlier: B Blumenfeld vs NN, 1903. Is there earlier still?|
|Mar-08-11|| ||Patriot: <<fm avari viraf>: I keep teaching such traps to my students but how come a young GM Karjakin could fall a victim to the kenspeckle 8.Qxd4! & the Black King is in shambles.>|
How could Kramnik miss a mate in one? Simple...Even the top players are only human.
<<BOSTER>: Reading many comments in this site you can create the image that chess is collection of many simple rules. But if one from the top players in the world lost the game after 8 moves (even in blitz), maybe chess has something more then such "collection".>
Yep...it's called being human. But that doesn't detract from the need to have principles/techniques/methods in chess. Top players use them but they still have bad days.
|Mar-08-11|| ||TuxedoKnight: this is almost as awesome as
find everything you need to know at chess
|Mar-08-11|| ||wals: Went for the wrong move, 8.Bxe7.
Black moved the wrong knight to e7.
Rybka 4 x 64 d 18 : 3 min :
6...Nge7, +1.14, blunder.
1. = (-0.21): 6...Nce7 7.Nxd4 h6 8.Bf4 Nxd5 9.cxd5 c6 10.Qd2 Nf6 11.Qe3+ Kf8 12.dxc6 dxc6 13.0-0-0 Nd5 14.Qa3+ Kg8 15.Bd6 Qf6 16.e4 Qxf2 17.Nc2 Nf6 18.Rd4 Ng4 19.Rd2 Qb6 20.Bc5 Qc7
2. = (0.20): 6...f6 7.Bf4 d6 8.Nxd4 Nxd4 9.Qxd4 Ne7 10.Rd1 0-0 11.c5 Nc6 12.Qc3 Re8 13.h4 Be6 14.h5 g5 15.h6 Bh8 16.Qg3 Bxd5 17.Rxd5 Nb4 18.Rd2 Re4 19.e3
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