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Alexander Motylev vs Bu Xiangzhi
World Cup (2007) (rapid), Khanty-Mansiysk RUS, rd 2, Nov-29
Sicilian Defense: Old Sicilian. Open (B32)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
Nov-29-07  s4life: What a blunder by Motylev!
Nov-29-07  notyetagm: Motylev vs Bu Xiangzhi, 2007

<s4life: What a blunder by Motylev!>

This is an -unbelievable- blunder from a 2600-rated player, even in blitz.

White to play: 42 ?


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Of couse White has to regain his piece here with 42 b3xc4 ♖c8xc4, which loses a valuable pawn.

So Motylev (White) has the brainstorm that he will regain his piece -and- keep the pawn by using the <PIN> tactic. He plays the -incredible- howler 42 ♖g1-c1??.

Position after 42 ♖g1-c1??:


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Bu Xianzghi (Black) must have fallen out of his chair when he saw this! He simply <BREAKS THE PIN BY DISCOVERY (RUBBERBAND)> with 42 ... ♗c4-a6!.

Position after 42 ... ♗c4-a6! 0-1:


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To meet the threat of ♖c1x♖c8, the Black c4-bishop moves to a6 where it meets the threat by <DEFENDING> as opposed to meeting the threat from c4 where it <BLOCKS THE CORRIDOR>.

White has lost a piece for nothing and resigned. I would swear this was a DGT board error if I didn't know any better.

42 ♖g1-c1?? is perhaps the <BLUNDER OF THE YEAR> at the 2600-level of chess.

Nov-30-07  whatthefat: That's a bit harsh, given it was played at blitz. One move blunders aren't that uncommon once the time controls become FIDE-tastic.
Nov-30-07  notyetagm: <whatthefat: That's a bit harsh, given it was played at blitz. One move blunders aren't that uncommon once the time controls become FIDE-tastic.>

I don't think it is. That a light-squared bishop (Black c4-bishop) can break a <PIN> (c-file) and <DEFEND> the target of the <PIN> (Black c8-rook) if it is also light-squared (c8-square) is something I learned when I was a USCF Class D player.

Nov-30-07  whatthefat: But anything that's labeled a blunder is something even a D class player ought to be aware of, e.g., Deep Fritz vs Kramnik, 2006. That's what makes it a blunder in the first place.
Nov-30-07  zahbaz: Ouch. He was going to have better pawn placement after 1.b3xc4 Rxc4 2.Kxf4.
Nov-30-07  utssb: I agree with <notyetagm>, this is a ridiculous mistake to make at such a level. Some blunders involve subtle tactics that can easily be missed during Blitz but this one couldn't have been more obvious.

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