SPCC: Huge MultiPV-rating experiment

[pohl4711]

I did a huge, experimental RoundRobin tournament with 3 engines (Stockfish 13, KomodoDragon 1.0 and KomodoDragon 2.0), each with 4 different MultiPV-settings (1-4, were 1 is the normal, default playing mode). Goal: Measure, how much Elo is lost by calculating more than on PV-line. And to measure, if Dragon 2.0 has less Elo-loss here, than Dragon 1.0, and if Dragon 2.0 is on one Elo-level with Stockfish 13, when both engines are running with MultiPV=4.
Tournament with 2'+1'' thinking-time on an old QuadcoreCPU, singelthread-mode, no ponder, no bases (except for cutechess-cli, to end a game), cutechess-cli, classical 4 moves deep openings, played by humans (out of Megabase 2020, both players 2400 Elo or better). 100 rounds = 6600 games played.

See the results (and download the games) on my website:

https://www.sp-cc.de/experiments.htm