NCM plays each Stockfish dev build 20,000 times against Stockfish 14. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.
| Host | Duration | Avg Base NPS | Games | WLD | Standard Elo | Ptnml(0-2) | Gamepair Elo | 
|---|
| ID | Host | Base NPS | Games | WLD | Standard Elo | Ptnml(0-2) | Gamepair Elo | CLI | PGN | 
|---|
| Commit ID | 797602938da5087d0af2448a72767cb17cd8c248 | 
|---|---|
| Author | Aram Tumanian | 
| Date | 2016-11-19 09:20:28 UTC | 
| Start searching for a repetition from the 4th ply behind
A position can never repeat the one on the previous move.
Thus we can start searching for a repetition from the 4th
ply behind. In the case:
 std::min(st->rule50, st->pliesFromNull) < 4
We don't need to do any more calculations. This case happens
very often - in more than a half of all calls of the function.
No functional change. | |