Komodo 8CPU v Stockfish 8CPU

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Graham Banks
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Re: Komodo 8CPU v Stockfish 8CPU

Post by Graham Banks » Sat Nov 17, 2018 6:38 am

GAME 22 - Quiet game despite Komodo's efforts to create an edge.

Opening line used:
1. e4 e5 2. Bc4 Nf6 3. d3 h6 4. Nf3 c6 5. O-O d6 6. a4

Komodo tried in various ways to create an edge, but the nature of the game didn't really lend itself to anything. Another draw sees Stockfish maintain its five point lead at 13.5-8.5.

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Graham Banks
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Re: Komodo 8CPU v Stockfish 8CPU

Post by Graham Banks » Sun Nov 18, 2018 8:17 pm

I'll post the final four games later today. Sorry for the delay.
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Jouni
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Re: Komodo 8CPU v Stockfish 8CPU

Post by Jouni » Wed Nov 21, 2018 8:48 pm

Final games are still missing. Houdini will be more suitable match for Komodo?
Jouni

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Graham Banks
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Re: Komodo 8CPU v Stockfish 8CPU

Post by Graham Banks » Wed Nov 21, 2018 9:26 pm

Jouni wrote:
Wed Nov 21, 2018 8:48 pm
Final games are still missing. Houdini will be more suitable match for Komodo?
Hi Jouni,

I've had important issues to deal with in recent days, but will post the final games when I can.
Yes - Komodo and Houdini would be a closer match.

Graham.
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Re: Komodo 8CPU v Stockfish 8CPU

Post by Graham Banks » Fri Nov 23, 2018 5:24 am

GAME 23 - Komodo equalises easily and the game looks drawn throughout.

Opening line used:
1. Nf3 Nf6 2. c4 b6 3. Nc3 Bb7 4. d4 e6 5. a3 d5 6. cxd5 Nxd5 7. Bd2 Nf6 8. Rc1 *

Although Stockfish felt it had a small advantage in the middlegame, it seemed that it was biting on granite, and that Komodo had more space. After the rooks and queens came off along the c-file, the game entered an ending where each side had three minor pieces plus pawns. There was no way that Stockfish could take advantage of black's IQP and no way that either side could infiltrate. The game meandered along to the inevitable draw.

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Re: Komodo 8CPU v Stockfish 8CPU

Post by Graham Banks » Fri Nov 23, 2018 5:35 am

GAME 24 - Komodo more active throughout, but Stockfish holds and takes a perpetual.

Opening line used:
1. Nf3 Nf6 2. c4 b6 3. Nc3 Bb7 4. d4 e6 5. a3 d5 6. cxd5 Nxd5 7. Bd2 Nf6 8. Rc1 *

The reverse game was played differently. Komodo tried to make something on the queenside, while Stockfish countered on the kingside. 38...Bxf4 was a nice attempt to gain the initiative, but Komodo's knight sac on e6 held the balance. Although Komodo's passed c-pawn and e-pawn kept Stockfish busy, both sides regarded the position as equal, and Stockfish was happy to take an eventual perpetual. Stockfish leads the match by 14.5-9.5.

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Re: Komodo 8CPU v Stockfish 8CPU

Post by Graham Banks » Fri Nov 23, 2018 5:48 am

GAME 25 - Stockfish masterclass on how to take advantage of the exchange, and the match is all over!

Opening line used:
1. e4 g6 2. d4 d6 3. Nf3 Nf6 4. Nc3 Bg7 5. Be3 a6 6. h3 O-O *

Stockfish immediately started probing to create weaknesses, and eventually Komodo was forced to respond with an exchange sac on f3. It looked as though Stockfish might have difficulty breaking down Komodo's walls, but 34.Rc4 and soon afterwards 39.Rb4 loosened things up. What followed was a masterclass on how to make the exchange count. With its sixth win, Stockfish has now won the match, but the reverse game will still be played.

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Re: Komodo 8CPU v Stockfish 8CPU

Post by Graham Banks » Fri Nov 23, 2018 6:02 am

GAME 26 - Nice counterplay from Komodo gains endgame edge, but not enough to win.

Opening line used:
1. e4 g6 2. d4 d6 3. Nf3 Nf6 4. Nc3 Bg7 5. Be3 a6 6. h3 O-O *

As black, Stockfish opted for kingside expansion led by 17...f5. Komodo remained solid and came back on the queenside. 36.Nb4 gave up the a5 pawn, but allowed Komodo to reposition its pieces to put strong counter-pressure on the black position. Mass exchanges followed and Komodo went into the resulting rooks and pawns ending two pawns up. Despite this, the game was always going to be drawn. Stockfish wins the match by 15.5-9.5 (six wins to zero).

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Graham Banks
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Re: Komodo 8CPU v Stockfish 8CPU

Post by Graham Banks » Fri Nov 23, 2018 6:06 am

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