New Polyglot openingbook for REBEL 16.3

Hi all,

I have made a new version of Rebel.bin, the Polyglot openingbook for Rebel. You can download it over here:

https://www.mediafire.com/file/ewbwkyexkspablh/Rebel.bin/file

Many new lines and improvements/additions on existing lines.

Enjoy!

Tanks Jeroen, I will add the new book to the download.

Admin wrote:

Tanks Jeroen, I will add the new book to the download.

Thanks! Will you send Rebel 16.3 including book to the SSDF? IMO very interesting to see how it performs. Maybe top 5?

A little test:

Rebel 16.3 (+Perfect2021.bin) - Berserk 12 (+Rebel.bin) 36-64

Now I switched books:

Rebel 16.3 (+Rebel.bin) - Berserk 12 (+Perfect2021.bin) 48-52

A significant difference of 12%! Actually 48% is a very good result, as Berserk is extremely good at blitz.

Nice

Thanks, I got a copy.

I really like your book. I pitted Rebel at tournament time control against Stockfish 16.1 without book, Rebel with the black pieces and had a look at your complicated Paulsen line. Rebel's last book move was like move 30 when Stockfish on its own already displayed 0.00s everywhere. Rebel was less optimistic, but it had no difficulty to find correct moves.
I can see how this is possible Stockfish being that deterministic, but this is clearly a labour of love, thank you.
Btw - is there any technical reason why Rebel can't play capture moves from book? Or is it just that no one ever bothered to fix this bug in the book utility?

Peter

Interesting result:

Rebel 16.3 (+Rebel.bin) - Stockfish 11 (+Small solid book) 134.5-65.5 (=67.25%)

That's almost 10% better than Rebel 16.2 did in a similar test. Rebel 16.3 won 23 games as black, quite astonishing.

It gets even better:

Rebel 16.3 (+Rebel.bin) - Stockfish 12 (+Small solid book) 105-95  (=52.5%)

In my tests Rebel 16.2 never managed to beat Stockfish 12 (the first SF with NNUE) and often lost rather clearly.

Yes, who would had thought that when SF12 NNUE came out ~4 years ago and was miles ahead.