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Up Topic Rybka Support & Discussion / Rybka Discussion / GM Joel Benjamin vs. Rybka: Game 1
- - By Felix Kling (Gold) [de] Date 2008-01-03 19:44
[White "Benjamin"]
[Black "Rybka"]
[WhiteElo "2575"]
[BlackElo "3100"]
[Result "0-1"]
[GameID "235"]
[UniqID "63267"]
[WhiteClock "0:02:21"]
[BlackClock "0:54:06"]
[Stamp "1204"]
[LastMoves "40...a4 41.Kf2 -5.12"]

1.e4 {This is game 1 of draw odds match. Rybka must win to get a point.} e5 2.Nf3 d6 3.d4 exd4 4.Nxd4 Nf6 5.Nc3 Be7 6.Be2 O-O 7.O-O c5 8.Nf3 Nc6 9.Re1 Be6 10.b3 a6 11.Bb2 Re8 12.Bf1 d5 13.exd5 Nxd5 14.Nxd5 Qxd5 15.Qxd5 Bxd5 16.Rad1 Rad8 17.a3 Kf8 18.Bd3 g6 19.Kf1 b5 20.c4 bxc4 21.Bxc4 Bxc4+ 22.bxc4 Rxd1 23.Rxd1 Rb8 24.Rd2 f6 25.Rc2 Kf7 26.Ke2 g5 27.h3 h5 28.Kd1 g4 29.hxg4 hxg4 30.Nh4 Bd6 31.Nf5 Be5 32.Kc1 Kg6 33.Ne3 Bf4 34.g3 Bxe3+ 35.fxe3 Ne5 36.Bxe5 fxe5 37.Rf2 Rb3 38.Kd2 Rxa3 39.Rf8 a5 40.Ke2 a4 41.Kf2 { 0-1} Z0 ( 41...Ra2+ 42.Ke1 a3 43.Ra8 Ra1+ 44.Kd2 a2 45.Kc2 Rg1 46.Rxa2 Rg2+ 47.Kb3 Rxa2 48.Kxa2 {Anti-Human Rybka  (0:00.03)} {<font color=red>-4.97|d17</font>} ) ( 41...Ra2+ 42.Kf1 a3 43.Ra8 Ra1+ 44.Kg2 Kf5 45.Ra5 Ra2+ 46.Kg1 Ra1+ 47.Kf2 Ke4 48.Kg2 {Rybka v2.3.2a (0:02.14)} {<font color=red>-5.12|d19</font>} ) 0-1

White forfeits on time in a lost position.
Parent - - By JohnL (***) Date 2008-01-03 21:23 Edited 2008-01-03 21:46
This seems like a typical game that happens when you just try to keep it safe. There are so many subtile ways to get an advantage.

Perhaps Joel instead should try to exploit this kind of non-theoretical black opening and go for winning advantage. This may not win the match but he may at least get some point(s).

In this game I guess the critical move (and a mistake) was putting the bishop on e2 instead of c4 which allows black to play Be6 and d5 with equal position. 6.Bc4 seems like comfortable advantage to me.

I still go for 7-1 to Rybka :-)
Parent - - By gala.martin (**) Date 2008-01-03 22:31 Edited 2008-01-03 22:36
I have been analyzing game1 from a laptop provided by my university. I plugged the power to a supply owned by a friend. Then I download a chess GUI and togaII engine from a debian repository in two clicks. Finally, I connected to the Live Chess Broadcast by Convekta. So, I had a 2800+ rated evaluation just a few minute after I decided to put chess software on this PC. That's quite impressive what hardware, chess software and internet connection can do today in just a few minutes. And everything was completely free for me (laptop, power, connection, OS, gui, engine, pgn). Ouch, I am using my own mouse.

Good game by rybka btw. Game2 looks more balanced (well, rybka is on the edge imo, but still a long way to go). So far.
Parent - - By Felix Kling (Gold) [de] Date 2008-01-03 22:52
Yes, Debian/Ubuntu is quite cool :) After changing to ubuntu I wondered why nobody complains about the uncomfortable Windows-installations :)
Parent - By gala.martin (**) Date 2008-01-03 23:04
Yes, but beyond the linux stuff (that's a "must" for me), I was positively amazed by the strength. By the end, with a (free for me) laptop featuring an intel merom, and latest free (indeed open source) engine, I can easily say: "well, you GM have just blundered", or "oh, no that move GM, Nxf3 was clearly superior". While I should analyze for hours by myself to achieve the same statements, and I would always be dubious about their correctness.

Free engines are also very strong and reliable w.r.t. humans, and you really need a good product as rybka to convince people spending money for a chess engine.
Parent - - By BB (****) [gb] Date 2008-01-04 10:55

> I still go for 7-1 to Rybka :-)


After seeing game 1, if you'd have asked me who would win the match, I'd have guessed Joel.  Except for Joel misplaying the end (in time trouble it seems), I didn't perceive that Rybka had really made a dent in his defences. Just looking at Game 2 now, there was nothing to dispel this notion, and I'd say that the ball is now in the Rybka team's court.
Parent - By BB (****) [gb] Date 2008-01-05 10:25

> After seeing game 1, if you'd have asked me who would win the match, I'd have guessed Joel.  Except for Joel misplaying the end (in time trouble it seems), I didn't perceive that Rybka had really made a dent in his defences. Just looking at Game 2 now, there was nothing to dispel this notion, and I'd say that the ball is now in the Rybka team's court.


After seeing game 3, I'd have switched to favouring Rybka, but having just looked at the Game 4 result, it becomes less clear, as it is now apparent that board-blocking is feasible [though Rybka could have made more of an attempt to break down the blockade by retreating the knight, even if it allows g5].
Up Topic Rybka Support & Discussion / Rybka Discussion / GM Joel Benjamin vs. Rybka: Game 1

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