Sesse wrote: ↑Sat May 05, 2018 10:16 amI don't know if anyone ever tried to quantify how many Elo each level of tablebases help?
3 and 4-men probably add close to nothing, among the top 3 engines. 5-men has been cheap to enable form the get go, so the only thing I ever tested was 6-men against 5. This was years ago, before investing in fast NVMe SSDs I wanted to know if it was worth it. It fluctuates a lot depending on the engine, but I recall H4 tactical version, at the very low depth of 10, to give a
very sizeable increase in strength. I don't expect results to hold for H6.
Under fixed depth testing conditions, it's my believe that more time equals smaller gaps; I never really tested it, but seeing who asks I'll give it a shot.
Engine tested: asmFish 9 (April 10th version with correct default contempt value)
Parameters: everything at default except for SyzygyProbeLimit, which was given the values 0, 5 and 6
Openings: Hert500
Book: 46 plies deep, very wide book (more than 10 million positions at ply 36)
6-men Syzygy adjudication
Resign at cp=300
Draw if score of 0 found for 5 moves, starting at the 25th
Ordo calculations done with version 1.2.4, using the -W and -s 1000 switches
2 round robins played at depth 12 and 15, plus a connecting match between the strongest depth 12 and the weakest depth 15 engine.
Code: Select all
# PLAYER : RATING ERROR POINTS PLAYED (%) CFS(%) W D L D(%) OppAvg OppErr OppN OppDiv
1 6a9d15 : 2454.9 14.4 1045.0 2000 52 99 469 1152 379 58 2438.9 13.0 2 2.0
2 5a9d15 : 2440.9 14.6 986.0 2000 49 73 407 1158 435 58 2445.9 12.9 2 2.0
3 0a9d15 : 2436.8 11.4 1789.5 3000 60 100 1070 1439 491 48 2354.3 13.5 3 3.0
4 6a9d12 : 2167.3 11.6 1228.0 3000 41 97 620 1216 1164 41 2245.7 13.5 3 3.0
5 5a9d12 : 2155.6 14.4 999.0 2000 50 95 529 940 531 47 2155.9 13.1 2 2.0
6 0a9d12 : 2144.5 14.6 952.5 2000 48 --- 486 933 581 47 2161.4 13.0 2 2.0
White advantage = 41.83 +/- 3.06
Draw rate (equal opponents) = 50.00 % +/- 0.00