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Zappa (Computer) vs Rybka (Computer)
Clash of the Computer Titans 2007  ·  Sicilian Defense: Canal Attack. Main Line (B52)  ·  1-0


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find similar games 14 more Zappa/Rybka games
sac: 98.Qxg4+ PGN: download | view Help: general | java-troubleshooting

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Kibitzer's Corner
Sep-26-07
Premium Chessgames Member
  Marmot PFL: Maybe black was programmed to complicate at all costs - that's the omly explnation I can think of for 15.f5? The queen sac for the rook on move 98 to transition into a textbook win was neat if you can stay awake that long.
Sep-27-07
Premium Chessgames Member
  Richard Taylor: <Marmot PFL> 15 ... f5 looks dubious Is 15 ..e5 better?

I agree re the ending - instructive and clever. Almost like a Fischer game or one of those World Champ games of old by Alekhine, Lasker, Capa Botvinnik etc (even Kasparov or Korch or Karpov)

Sep-27-07   ounos: Oh, that amazing position after the 101st move!
Oct-02-07
Premium Chessgames Member
  Dim Weasel: <<ounos> Oh, that amazing position after the 101st move!> Yup, I stored the useful (read: "simple enough to be recalled later") manouver that follows into my modest endgame toolbox.

Oct-03-07
Premium Chessgames Member
  keypusher: <Oh, that amazing position after the 101st move!>

Why, it's almost the Saavedra problem!

http://en.wikipedia.org/wiki/Saaved...

Oct-03-07
Premium Chessgames Member
  tpstar: Interesting how Rybka breaks the rule of defending Q vs R by keeping their K&R close together with 119 ... Ra7 & 121 ... Ra2, although 121 ... Rg7 leads to 122. Qh5+ Kg8 123. Kf6


click for larger view

which is a stock position with a quick win.

126. Qc4+ forced 126 ... Kh5 (126 ... Kg3/Kh3 127. Qc3+), and then 127. Qe2+ forced the Black King to a dark square to pick off the Ra5 next.

Oct-03-07
Premium Chessgames Member
  keypusher: Did the computers use tablebases in positions like this?
Aug-06-08
Premium Chessgames Member
  aazqua: I just played through the silly Nakamura game where something similar happened. I think some of these computers see stasis as a potentially bad outcome (maybe avoiding the draw rule, though that wasn't the case here I don't think) so they give up material to create a change / initiative.
Jan-20-09   WhiteRook48: I think Rybka lost on time.
Sep-03-09
Premium Chessgames Member
  kellmano: Moves 98 - 106 are wonderful stuff. The similarity with the Saveedra is indeed pleasant.

Forcing Chess Moves by NIC
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