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Jeroen Noomen Books

Posted: Mon Oct 17, 2022 6:15 am
by janus
:x :roll:

TCEC 23 superfinal book, by GM Matthew Sadler and Jeroen Noomen
The TCEC 23 superfinal book was again developed in cooperation between international chess Grandmaster Matthew Sadler and myself (Jeroen Noomen).

Here is the most important information about our book:

The TCEC 23 superfinal book was completed in the months before July 2022. Both Matthew and I have chosen 25 lines, which will be played alternately. Matthew's lines are #1, #3, #5 and so forth, my lines are #2, #4, #6 and so forth. The lines are mixed in a special way, the 2nd half of the superfinal will have a higher bias.
I ordered both Matthew's and my own lines from 1 (lowest exit) to 25 (highest exit). My own lines are played from 1 (lowest) to 25 (highest). Matthew's five highest exits will be played first, i.e. in the first 10 lines there are 5 with a very high bias. After that Matthew's lines continue with 1,2,3.... 20.
All lines typically have a Leela Chess Zero book exit between +0.35 and +0.55, with a few exceptions (note: this is an old Leela net, with lower evaluations than the current Leela net!). Of course the book exits at TCEC can be very different, because of much faster hardware or because engines like Stockfish and Komodo Dragon have much higher evaluations than Leela.
All important openings will be played; just like in the previous TCEC superfinals the opening lines are risky and have a (very) high bias. This is necessary to avoid an excessive number of uninteresting draws.
The chosen lines typically have a length between 2 moves and 13 moves; there are two lines which are 2 moves (4 ply) long and there is one line which is 13 moves long.
Five opening lines have a black advantage, to increase the chance of a black win.
Average move length is 6.36, which is lower compared to the previous superfinal.
We have avoided positions that could lead to many exchanges, as well as positions with a symmetrical pawn structure and positions that could lead to easy wins for the side with an advantage. The last aspect is becoming more and more difficult, with strong hardware, a long time control and engines being so strong. Of course risky lines means that the chance of 1-0 1-0 is increasing.
The purpose of the lines is to have interesting play with a reasonable chance of a decisive result. An opening result of 1.5-0.5 is the preferred outcome. Enjoy the TCEC 23 superfinal!

ECO code distribution
ECO A: 13 lines
ECO B: 18 lines
ECO C: 8 lines
ECO D: 1 line
ECO E: 10 lines

Move length distribution
2 moves: 2 lines
3 moves: 3 lines
4 moves: 7 lines
5 moves: 9 lines
6 moves: 10 lines
7 moves: 3 lines
8 moves: 7 lines
9 moves: 5 lines
10 moves: 1 line
>10 moves: 3 lines


Gepost door Frans Smit op 01:04 Geen opmerkingen:
Opening PGN TCEC S23 Premier Division
Here you can download Jeroen Noomen's opening PGN that is used in TCEC season 23 Premier Divsion:

https://www.mediafire.com/file/h9ly5314 ... 3.pgn/file

The PGN contains 112 lines with a high/very high bias. Each round has a specific theme. F.e. round 1 of four games is 'Sicilian Dragon', round 2 is 'King's Indian Mar del Plata' and so forth.

Enjoy testing!

Re: Jeroen Noomen Books

Posted: Wed Oct 19, 2022 6:45 pm
by massimilianogoi
What a mess of a book... To have a significant result with all this heterogeneity thousands games should be played.

About the new Komodo, it's evident here (second test in data 18 October 2022) that they are using a Stockfish-based NNUE net.

Re: Jeroen Noomen Books

Posted: Fri Nov 18, 2022 6:51 am
by janus
:oops: :(

TCEC 23 superfinal opening PGN available
The TCEC 23 superfinal finished on Thursday, November 17th. Stockfish prolonged its title by beating Leela Chess Zero by 58.5-41.5. Stockfish won 27 games, Leela won 10 games and 63 games ended in a draw.

21 lines ended decisive, i.e. in a 1.5-0.5 score. Stockfish won 19 lines, while Leela won 2 lines. In total 8 lines ended with two wins.

Via the link below you can download the TCEC 23 superfinal opening PGN. The odd numbered lines were selected by GM Matthew Sadler. The even numbered lines were selected by Jeroen Noomen.


TCEC SuperFinal Book