24 threads of 12x3GHz, 32G hash, no tbs, started with already full hash after forwarding and backwarding the known best lines.
After 2 hours of switching, 25.Nd2 doesn't come up anymore.
Na3 is kept best for the last four and a half hours except a single line- try with Nc3 after 5 hours.
So 25.Na3 might be best defence for both first moves yet, for 24...c3 as well as for 24...Rec8, latter one just quite as well as the first one therefore as 24th move of Black's, both transposing to each other 2 plies later on.
I also wondered if 25.Na3 might be better than 25.Nd2, so I also ran an overnight search with Stockfish-dev, using an already full hash and MultiPV = 2:
Glarean wrote: ↑Mon Aug 26, 2019 10:26 am
I organized a engines tournament; the A/B's got their best conditions, and the NN's got their best conditions. At the end I added up - basta
Great article, very interesting.
To give every engine the best condition, I think it would be preferable to do two matches for each position, with inverted colors.
For example the position: r1bqkbnr/pp3ppp/2npp3/8/2PNP3/8/PP3PPP/RNBQKB1R w KQkq - 0 6
SharedScreenshot.jpg
is very interesting: in the July Lichess' database after Nc3 white won 58% of the games and lost 36% of them.
However in your tournament Stockfish played twice as black
24 threads of 12x3GHz, 32G hash, no tbs, started with already full hash after forwarding and backwarding the known best lines.
After 2 hours of switching, 25.Nd2 doesn't come up anymore.
Na3 is kept best for the last four and a half hours except a single line- try with Nc3 after 5 hours.
So 25.Na3 might be best defence for both first moves yet, for 24...c3 as well as for 24...Rec8, latter one just quite as well as the first one therefore as 24th move of Black's, both transposing to each other 2 plies later on.
I also wondered if 25.Na3 might be better than 25.Nd2, so I also ran an overnight search with Stockfish-dev, using an already full hash and MultiPV = 2:
