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by Daniel Shawul
Mon Jul 09, 2018 12:30 am
Forum: Computer Chess Club: General Topics
Topic: Is Leela doing anything?
Replies: 2
Views: 548

Re: Is Leela doing anything?

About a decade ago, I created an experiment that tested the Elo value of a position eval. Bob Hyatt independently verified the the results and the experiment. It came down to a modern position eval is worth over 400 Elo. This is like doing an "experiment" where the result can be anything you want i...
by Daniel Shawul
Thu Jun 14, 2018 3:31 pm
Forum: Computer Chess Club: General Topics
Topic: TCEC news, believe it or not (no ifs or buts)
Replies: 23
Views: 3460

Re: TCEC news, believe it or not (no ifs or buts)

It is still close to that on a single-core cpu - not on the 44-core tcec hardware that it had 2700 elo with in early bonus games. You can keep on twisting my words, but that is the fact. CCRL guys seem to disagree with you: http://www.computerchess.org.uk/ccrl/4040/cgi/engine_details.cgi?print=Deta...
by Daniel Shawul
Thu Jun 14, 2018 12:56 pm
Forum: Computer Chess Club: General Topics
Topic: TCEC news, believe it or not (no ifs or buts)
Replies: 23
Views: 3460

Re: TCEC news, believe it or not (no ifs or buts)

1. Komodo won Premier Division with 0.5 score ahead of Stockfish, ( 31 points and 30.5 points ). (Full stop) 2. Leela on TCEC CPU (CPU) is performing 3200+ rating. (Full stop) Still 2100 elo engine :roll: It is still close to that on a single-core cpu - not on the 44-core tcec hardware that it had ...
by Daniel Shawul
Sat Jun 02, 2018 8:46 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Egbb dll neural network support
Replies: 6
Views: 1005

Re: Egbb dll neural network support

I think this is quite brilliant. I would ask, if at all possible, two things: 1) Easy-ish to use tool to build NN from material (games, etc) 2) A final NN format that is either compatible with LCZero (meaning would be a standard that was a two-way street), or a tool that could convert this (I suspe...
by Daniel Shawul
Thu May 31, 2018 2:41 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Egbb dll neural network support
Replies: 6
Views: 1005

Re: Egbb dll neural network support

I use pgn files as input since I don't have the resources myself for millions of self-play games. Once I understand things better and can get reproducible results, then I want to see how important the prior move "history" inputs are. After the initial slow-down for TF, the size of the NN might not ...
by Daniel Shawul
Thu May 31, 2018 12:54 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Move ordering based on stored values of child nodes
Replies: 4
Views: 618

Re: Move ordering based on stored values of child nodes

So I've been trying to read up on move ordering for my chess engine. Checking the position in the hash table, and searching the "hash move" first, seems to be a universal technique. Is it possible to also look up every child node in the table, get their values from shallower searches, and then sort...
by Daniel Shawul
Wed May 30, 2018 9:58 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Egbb dll neural network support
Replies: 6
Views: 1005

Re: Egbb dll neural network support

I have a working implementation now. I have generated four 4 networks (1x32, 3x64, 6x64, 12x128 modified resnets) on a set of 2 million epd positions. This looks quite interesting. I have been, ahem, tinkering with NNs for a while. These are just informal type comments based on my stumbling around....
by Daniel Shawul
Tue May 29, 2018 10:01 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Egbb dll neural network support
Replies: 6
Views: 1005

Egbb dll neural network support

Hello, I have just added neural network evaluation support via egbb dlls. This is not about training a neural network on endgame tablebases (although nothing will prevent us from doing that), but of providing evaluation for any position using a neural network using the existing interface of dll/so o...
by Daniel Shawul
Mon May 21, 2018 8:18 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Poor man's neurones
Replies: 1
Views: 453

Re: Poor man's neurones

I have actually done a single neural ANN evaluation using tensorflow. There are 775 inputs to that neuron: 8x8x12 attack planes, "shortcut" inputs to material difference (6 floats) and 1 float for the side to move. The single neuron NN is actually equivalent to a standard evaluation function. The fi...
by Daniel Shawul
Mon May 14, 2018 8:22 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: MCTS-Komodo 12.0 x64 @ CEGT 40/4
Replies: 12
Views: 1810

Re: MCTS-Komodo 12.0 x64 @ CEGT 40/4

Is the test actually at 40/4, or is it at a faster level equivalent to 40/4 on old hardware? If it's actually 40/4 on an i7 or equivalent that should be okay, but if it is 40/4 on old hardware it's probably too fast for MCTS. We consider four seconds per move average on modern hardware to be the mi...