Search found 290 matches

by jorose
Wed Sep 16, 2020 5:11 pm
Forum: Computer Chess Club: General Topics
Topic: Request- Questions For GM Kramnik and DeepMind
Replies: 2
Views: 256

Re: Request- Questions For GM Kramnik and DeepMind

Awesome! I haven't actually gotten around to properly reading the paper, so I what a rough deadline for submitting questions could be?
by jorose
Wed Sep 09, 2020 3:22 am
Forum: Computer Chess Club: General Topics
Topic: A match between SF12+NNUE and Leele ver.0.26.2
Replies: 17
Views: 1151

Re: A match between SF12+NNUE and Leele ver.0.26.2

A tester does not need 5000 games, unless the goal is only to maximize the Elo precision. A useful tool for engine developers. What are you trying to answer. 1. What is the exact elo deference between A vs B. 2. Who is better only between A vs B, and this usually takes much fewer games to prove sta...
by jorose
Mon Aug 31, 2020 10:30 pm
Forum: Computer Chess Club: General Topics
Topic: A comparsion -Elo helps-, pieces on board, 3 ratings for 41 engines!
Replies: 5
Views: 400

Re: A comparsion -Elo helps-, pieces on board, 3 ratings for 41 engines!

Nice data! It is interesting to me that Winter seems inversed. In your second post Winter goes 31->24->22->19, progressively improving ranking the later the game goes.

I am not completely sure how to interpret the data however, perhaps Winter is just slow at closing out games?
by jorose
Tue Aug 25, 2020 7:11 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: AlphaBeta all returning the same number
Replies: 7
Views: 1405

Re: AlphaBeta all returning the same number

I think given the information you have provided we cannot say for certain what is going on. It should be noted however, that there might not be anything wrong at all. I you have a fail-hard framework, then moves will not return a static score below your lower bound. This means, if you search the bes...
by jorose
Mon Aug 03, 2020 4:53 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: NNUE accessible explanation
Replies: 12
Views: 3959

Re: NNUE accessible explanation

1) If I want the NN to return an evaluation, which could be used in a traditional alphabeta search engine, how is this achieved most commonly? Do I have a last hidden layer that feeds into a single output neuron which uses e.g. a tanh activation function so -1 would be a loss and +1 would be a win?...
by jorose
Mon Aug 03, 2020 2:40 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: The White Room
Replies: 10
Views: 2329

Re: The White Room

Oh wow! Thank you! I honestly only followed the first half of the tournament and mostly followed the gauntlet after that. After a very bad start I was just happy Winter was no longer last, but I guess with how close the field was Winter was able to make a fairly extreme comeback. Thanks for organizi...
by jorose
Fri Jul 31, 2020 12:00 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish NNue [download ]
Replies: 19
Views: 2091

Re: Stockfish NNue [download ]

Thank you! I have an i7-9700k with 2080ti. Which version should I use? popcount, bmi2, or avx2? The GPU is irrelevant for SF. Use whichever on happens to run fastest on your system, it's not like you pay money per binary. Just run them each from a couple positions. Most likely BMI2 version will be ...
by jorose
Fri Jul 24, 2020 8:22 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: NNUE accessible explanation
Replies: 12
Views: 3959

Re: NNUE accessible explanation

I think in general a lot of why certain architectures are chosen over others boils down to "because we tried others and this worked the best". That's not to say there is no justification, just that it's not black and white. Perhaps, however, I can give you a bit of my intuition with different aspect...
by jorose
Thu Jul 23, 2020 2:12 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: NNUE accessible explanation
Replies: 12
Views: 3959

Re: NNUE accessible explanation

Hi Martin, cool to see you around here again! It is indeed a bit difficult to find non-Japanese sources for NNUE and it put me off a bit in the passed. You can find a nice compendium of sources here . Still a lot of them are in Japanese, but I still think its quite useful. Based on my understanding ...
by jorose
Wed Jul 01, 2020 1:31 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: knodes/s halved after improving eval
Replies: 6
Views: 767

Re: knodes/s halved after improving eval

Eval changes can be tested with fixed nodes per move games. Just wanted to chime in here to mention that Brian probably is referring to small changes and tweaks to the evaluation function. Larger changes can effect how fast the engine can search nodes, as you described finding out yourself in this ...