Search found 34 matches

by GregNeto
Tue Sep 15, 2020 12:19 pm
Forum: Computer Chess Club: General Topics
Topic: Basic Search Question
Replies: 7
Views: 1018

Re: Basic Search Question

no, it does not work this way:

best explanations:

https://www.chessprogramming.org/Alpha-Beta

https://en.wikipedia.org/wiki/Alpha-beta_pruning (with animated examples)
by GregNeto
Tue Sep 15, 2020 11:42 am
Forum: Computer Chess Club: General Topics
Topic: Torpedo chess perft
Replies: 1
Views: 390

Re: Torpedo chess perft

an alternative position with promotions near:
white pawn from g2 to g5, black pawn from a7 to a4

rnbqkbnr/1ppppppp/8/6P1/p7/8/PPPPPP1P/RNBQKBNR w KQkq - 0 1

depth nodes 1 20
depth nodes 2 421
depth nodes 3 9685
depth nodes 4 232819
depth nodes 5 5969304
depth nodes 6 157555466
by GregNeto
Tue Sep 15, 2020 11:20 am
Forum: Computer Chess Club: General Topics
Topic: Torpedo chess perft
Replies: 1
Views: 390

Torpedo chess perft

I just modified my toy engine to play torpedo chess (compare alpha zero chess variants thread).

Can someone confirm the following perft numbers?

depth nodes 1 20
depth nodes 2 400
depth nodes 3 9194
depth nodes 4 209719
depth nodes 5 5402551
depth nodes 6 137426589

tx Greg
by GregNeto
Tue Sep 15, 2020 9:06 am
Forum: Computer Chess Club: General Topics
Topic: Chess variants made with help from alpha zero article
Replies: 37
Views: 3734

Re: Chess variants made with help from alpha zero article

A nice variant is kq-chess: swap the white king and queen positions (king on d1, queen on e1); white short castle goes to the queenside (king on b1, rook on c1), white long castle to the kingside (king f1, rook e1). A lot of opposite castling should lead to more attacking games and fewer draws. Tota...
by GregNeto
Thu Jan 09, 2020 8:40 am
Forum: Computer Chess Club: General Topics
Topic: The Stockfish of shogi
Replies: 28
Views: 7054

Re: The Stockfish of shogi

Some older info for the non_programmers:

https://www.reddit.com/r/chess/comments ... _can_make/
by GregNeto
Wed Jan 08, 2020 1:02 pm
Forum: Computer Chess Club: General Topics
Topic: The Stockfish of shogi
Replies: 28
Views: 7054

Re: The Stockfish of shogi

May I point to aobazero, don´t know how strong it is.

http://www.yss-aya.com/aobazero/index_e.html

Hiroshi's Computer Shogi and Go site is a treasure for me, the samples for the UEC Computer Go workshop are great.

http://www.yss-aya.com/
by GregNeto
Thu Nov 21, 2019 8:10 am
Forum: Computer Chess Club: General Topics
Topic: Banksia GUI released
Replies: 1037
Views: 172487

Re: Banksia GUI released

Congratulations, looks and works very good!

Can you make an option that works game-independant for (chess)-variants? Engines only have to agree about the protocol ...
by GregNeto
Thu Nov 21, 2019 7:52 am
Forum: Computer Chess Club: General Topics
Topic: New DeepMind paper
Replies: 18
Views: 3954

New DeepMind paper

DeepMind published a new paper.
It might be interesting for the experts. It´s a new approach to learning, which they evaluated on several board games.
https://arxiv.org/pdf/1911.08265.pdf
by GregNeto
Tue Apr 24, 2018 2:41 pm
Forum: Computer Chess Club: General Topics
Topic: CDrill 1800
Replies: 46
Views: 11281

Re: CDrill 1800 for TMET ... vs. the Mephisto's?

Thank you. A hardware-independent, stable, well calibrated and easy to change (playing-style wise) uci-engine in the clubplayer regions (1400 to 2200) would be great
by GregNeto
Tue Apr 24, 2018 10:21 am
Forum: Computer Chess Club: General Topics
Topic: CDrill 1800
Replies: 46
Views: 11281

Re: CDrill 1800 for TMET ... vs. the Mephisto's?

Would it be possible to make CDrill's strenght hardware-independent?