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Up Topic Rybka Support & Discussion / Rybka Discussion / ACCA tournament - Opening report
- - By Jiri Dufek (**) Date 2010-07-19 16:32 Edited 2010-07-19 16:34
Before ACCA tournament we agreed with Vasik that is good idea play this tournament however I was little out of bookmaking business – after preparing Rybka 4 book and participation during Anand-Topalov I was short of time and we agreed that Rybka cluster will play with commercial Rybka 4 book. I made only few changes – I only blocked about 4 openings which I don’t prefer for tournament play. With this book we got 7,5/9 and finished first.

1)  Telepath-RC 0-1
Very interesting opening played by Telepath. I toyed with this line too but found very problematic for white in pure eng-eng game.
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. Qc2 Nxc3 8.
bxc3 Be7 9. e4 O-O 10. Bd3 c5 11. O-O Qc7 12. Qe2 Nd7 13. Bb2 Rac8 14. Rad1
Rfd8 15. Nd2
2rr2k1/pbqnbppp/1p2p3/2p5/3PP3/P1PB4/1B1NQPPP/3R1RK1 b - -

15..a6 (out of book) – Rybka played logically on queenside and after white passive play quickly got very strong b3-pawn with winning position.

2)  RC-Tornado 1-0
I didn’t know lot of about our second opponend. He played little passive line of Ruy Lopez and Rybka got very active position.
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 d6 7. c3 Bg4 8. d3
Nd7 9. Nbd2 Nb6 (out of book)

r2qk2r/1pp1bppp/pnnp4/4p3/B3P1b1/2PP1N2/PP1N1PPP/R1BQR1K1 w kq -

10. Bb3
Lately Rybka sacrifice pawn for bishop pair against knight pair and black position was very hard – Tornado made probably some inaccuracies between move 30-40 and lost.

3)  ChessThinkerX-RC 1/2
It was really hard game. Thinker played nearly virtually novelty 7.Qe2 – this move isn’t new, but at the same moment this move was played in only few games, which are not so important.
1.e4 c5 2. Ne2 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qe2
r1b1kbnr/1pqp1ppp/p1n1p3/8/3NP3/2N1B3/PPP1QPPP/R3KB1R b KQkq -

7... Nf6
Rybka played logically but Thinker played very good too. When I checked post-mortem game I realized, that Rybka wasn’t worse during game but same time she wasn’t better at all too! Game finished in draw in queen endgame. Very hard game and very good by Thinker!

4)  RC-Crafty 1-0
Crafty is “old” friend – in the latest tournament we got only draw, now we played really nice game.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. h3
Bb7 9. d3 d6 10. a3 Na5 11. Ba2 c5 12. Nbd2 Bc8 13. c3 Be6 14. Bxe6 fxe6 15. b4
Nb7 – little dubious move, clearly better is 15..Nc6

r2q1rk1/1n2b1pp/p2ppn2/1pp1p3/1P2P3/P1PP1N1P/3N1PP1/R1BQR1K1 w - -

16. a4
Rybka got very strong pressure on queenside and Crafty gave pawn for transformation to 4-rook endgame. However white position was clearly better thanks to active king and Crafty resign on move 79.

5)  Sjeng-RC 1/2
First moreless peaceful game. Rybka played very safe Berlin (it wasn’t planned before tournament) and Sjeng didn’t provide any advantage. Score during game climbed to +0.41 for Rybka however Sjeng played active and game ended in a draw.

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5
8. Qxd8+ Kxd8 9. Nc3 Ke8 10. Rd1 Be7 11. Bg5 Bxg5 12. Nxg5 h6 13. Nf3 Be6 14.
r3k2r/ppp2pp1/2p1b2p/4Pn2/P7/2N2N2/1PP2PPP/R2R2K1 b - -

14... a5
There are a few games after 14.a4 but I didn’t see any reason prepared here book deeply – black is perfectly safe and Rybka understand very good this kindof position

6)  Rybka-Almond 1-0
In this game occurred Najdorf with 6.h3 – I must say that I in this way is black position fully playable. Rybka found very interesting 13.Be3 but position was very unclear.
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e6 7. g4 h6 8. Bg2
Nc6 9. Be3 Be7 10. f4 Nd7 11. Qd2 Nxd4 12. Bxd4 e5

r1bqk2r/1p1nbpp1/p2p3p/4p3/3BPPP1/2N4P/PPPQ2B1/R3K2R w KQkq -

13. Be3
After forced sequence black played weak 20..Rc8 and quickly got lost position

7)  Buzz-Rybka 1/2
This was not very happy game. After opening Rybka got equal position however she started exchange every piece and game ended in a draw. Buzz played safely and didn’t get any chance to Rybka get advantage – congratulate to Buzz! Next time is turn on my side in this line…
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. Bg5 Bb7 6. e3 h6 7. Bh4 Bxc3+ 8.
bxc3 d6 9. Nd2 Nbd7 10. f3 Qe7 11. Bd3 e5 12. e4 Nf8 13. Nf1 Ng6 14. Bf2 Nf4
15. Ne3 O-O 16. O-O N6h5 17. g3
r4rk1/pbp1qpp1/1p1p3p/4p2n/2PPPn2/2PBNPP1/P4B1P/R2Q1RK1 b - -

17... Qg5

8)  Rybka-HannibalX 1-0
I wanted try 6.Ne5 system in the Catalan and it works on 100%
1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 a6 6. Ne5 c5 7. Na3 cxd4 8.
Naxc4 Bc5
rnbqk2r/1p3ppp/p3pn2/2b1N3/2Np4/6P1/PP2PPBP/R1BQK2R w KQkq -

9. O-O
There is ofcourse dozens games after this move but I wanted left Rybka plays from this position. Rybka was long time pawn down, but black had very damaged pawn structure and was little worse during game. After 26…d3 game was very forced but at the end Rybka got advantage and won with kings attack.

9)  Arasanx-Rybka 0-1
Arasan used very interesting move order but at the end we were back in the main line of Merano, which has very big draw tendency. Arasan made mistake 22.e6 after which he had worse position and lost quickly.
1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Nc3 e6 5. d4 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3
Bb7 9. e4 b4 10. Na4 c5 11. e5 Nd5 12. O-O cxd4 13. Re1 g6 14. Bg5 Qa5 15. Nd2
Ba6 16. Nc4 Bxc4 17. Bxc4 h6 18. Bd2 Bg7 19. Qb3 O-O
r4rk1/p2n1pb1/4p1pp/q2nP3/NpBp4/1Q6/PP1B1PPP/R3R1K1 w - -

20. Bxd5 Qxd5 21. Qxd5 exd5 22. e6 ?!

I want to congratulate Crafty and Sjeng for their 2-3 place and congratulate to Thinker, Sjeng and Buzz for their very strong play in our games!
Parent - By Highendman (****) Date 2010-07-19 18:41
Thanks for the very interesting report.
Parent - By Rubén Cómes (****) Date 2010-07-19 19:20
Thank you very much Jiri.
Parent - By keoki010 (Silver) Date 2010-07-19 21:13
Great report Jiri! :grin:
Parent - - By tomgdrums (****) Date 2010-07-19 21:40
Hi Jiri!

Has there been any consideration given to releasing your Rybka 4 opening book in Shredder bkt format?  I would love to purchase that.  Shredder is my main GUI and I can't use your book in it's current format. 

Parent - - By Jiri Dufek (**) Date 2010-07-20 06:56
Hi tom.

i am not sure that there is any way to convert R4 book (in AQ or CTG format) to Shredder .bkt format. There is possibility use AQbook adapter and play under any GUI with this book but you lost possibility browse through book.

Parent - - By tomgdrums (****) Date 2010-07-20 13:12
Hi Jiri,

There isn't anyway to convert the book to bkt format, but I was wondering if you were ever considering to release it in such a format for purchase?

The Chessok adapter is of no use to me as it does not allow me to browse through the book (which is  a big reason why I would like to purchase it.


Parent - By Jiri Dufek (**) Date 2010-07-20 13:30
Hi tom,

at the moment there are no any plan make this because i think that market with Shredder GUI is very limited (maybe I am wrong).
I think that general idea using AQ book under Aquarium and CTG under any CB GUI (Fritz 5.32 is free GUI however supports only old engines, there are some downloadable GUIs from CB with limited functions too - i didn't try) good one - you can browse under these GUI with support your engine. Under others GUI you can use as minimum AQ book for auto-playing matches.

There was few weeks ago discussion about one universal open book format but if I remember correctly without any clear conclusion - there is no much space for agreement between all sides.

Parent - - By Vasik Rajlich (Silver) Date 2010-07-20 05:34
Thanks Jiri. This is your one-year Rybka anniversay, your first tournament for us was this one last year!

Parent - By Jiri Dufek (**) Date 2010-07-20 06:57
Thx Vasik! :-), yes, very nice to finish year of work with win :-)
Parent - By Venator (Silver) Date 2010-07-20 15:01
Hi Jiri,

Thanks for the nice report and the tournament win!
Up Topic Rybka Support & Discussion / Rybka Discussion / ACCA tournament - Opening report

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