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Rybka (Computer) vs Zappa (Computer)
"Mothers of Invention" (game of the day Feb-19-2008)
Clash of the Computer Titans (2007), Mexico City MEX, rd 4, Sep-22
Spanish Game: Closed Variations. Flohr System (C92)  ·  0-1
ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Feb-19-08
Premium Chessgames Member
  kevin86: A while back,I put in an inquiry of 2R+B vs Q endings-I finally found the game! It is a clear indication how the pieces can overpower the queen-even if the weaker side has two passed pawns.

A basic principle of this site is to instruct (in many possible ways); This game fits the bill well.

Feb-19-08  jovack: rybka usually comes out on top. but that's computers for you, unpredictable (with strong opponents)
Feb-19-08  popski: Bizarre game, Rybka play this ending like a patzer.
Feb-19-08  BAG: whatever happened with hydra these days? When is the new chess monster coming?
Feb-19-08
Premium Chessgames Member
  Sneaky: I wanted to download Zappa but then I found out, it's strictly commercial. ;-)
Feb-19-08  PinnedPiece: <sanyas: I think 120.f6 was the losing move.>

Another contender might be 178 QF3... must have been way past Rybka's bedtime.

Feb-19-08
Premium Chessgames Member
  Jimfromprovidence: As first reported by <Eyal> in September, 2007, This position after move 152 for black is a forced win for black, according to the Nalimov tablebases.


click for larger view

Oh, and it only takes 29 more moves.

Maybe it's time to take up checkers.

Feb-19-08  xrt999: I especially appreciate the fluidity in black's play from moves 60 through 120, and white's corresponding detachment in the same 60 moves.

It is beautiful and mesmerizing to watch black's rooks shuffle about the same 4 squares, and white's king shuffle from the first to fifth rank then back again, over and over, for 60 moves.

Jun-03-08  Xeroxx: Maybe Rybka was drunk!?
Nov-07-08  patzer of patzers: According to wikipedia (see Rybka article), Rybka moved a pawn to avoid the 50-move draw rule, which put it in a losing position.
Dec-01-08  DwayneMeller: What's wrong with 58Qd8? Couldn't the win of d6 due to the threat on a8 win for white? /


click for larger view

Dec-01-08  anandrulez: Rybka simply is too arrogant to push for the win there - sac the pawn etc...
Dec-01-08  popski: Also 178.Qf3? What, Rybka doesn't have resign flag implemented? Now that's arrogant!
Dec-02-08  patzer of patzers: <DwayneMeller> What do you have in mind if Bb7?
Dec-31-08  WhiteRook48: The classic Rybka blunder.
Jan-24-09  WhiteRook48: 178. Qf3?? maybe Rybka was trying to avoid the 50 move rule
Jan-28-09  WhiteRook48: instead of 178. Qf3 Rybka should have resigned
Mar-21-09  WhiteRook48: by 177....Rbd4 Rybka is crashed
Jul-19-09  MarvinTsai: This is definitely the game of this match between computers. By this game Zappa gained a 3-win streak against Rybka(a record?), and the winner prize(final result: 5.5-4.5). About 109.h6, Rybka chose that because he thought that losing the pawn still is better than draw the game. Soon then the situation is obvious: without the h-pawn, f-pawn can't be a threat enough, black rooks can easily hold the back rank and go grab the b-pawn. We can clearly see what's Rybka's problem(like all other computers): they simply can't choose the important and easy thing to think. It's such a simple logic for human being to use by ourself, but not to teach computers. If Rybka can see another 10 plies maybe he won't make the h6 mistake, but under that time control it's out of his mind range. That's not something possibly being overcome in years or even forever. To see a horizon you must first understand what a horizon is.
Jul-19-09  kurtrichards: Zappa: I zapped you, rybka.
Sep-30-09  ROADDOG: Kingscrusher explains the loss by Rybka.
http://www.youtube.com/watch?v=7V-4...
Nov-14-09  TechnoGuyRob: 178. Qf3 is not so surprising in the light that checkmate is about to follow and white has no checks left. In fact, it's the only move which delays checkmate for more than 2 moves.
Aug-25-11  WhiteRook48: 178 Qxd4+ delays mate for more than two moves.
Nov-28-11
Premium Chessgames Member
  Garech: Incredible game; sometimes computer chess is very aesthetic and creative.

-Garech

Dec-27-11
Premium Chessgames Member
  Penguincw: I think the humans were tried before the machine. It can't sweat, but can show it's tired by making silly blunders.
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