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Are you able to provide a short outline of the heuristics and adjustments you made? Hi Steve. By far the most important changes are the checks for no legal king moves in a position or a small number of total legal moves (potential zugzwang). In this case, it does a full depth verification search fo...

I noticed a number of people were interested in a SF that is better at finding mates. To this end, I created the following branch: https://github.com/jhellis3/Stockfish/tree/mate_finder Commit: https://github.com/jhellis3/Stockfish/commit/c6c152e94a2bb9c92e71d1bb4803b24d67876302 In my limited testin...

Yes, you misread Lucas's patch. The patch shifts the non-failing bound in the direction of the failing bound, not away from it.

EX:

SF original (-16, 16) -> (-16, 24)

SF new (-16, 16) -> (0, 24)

LoL, that has to be the best name for a chess engine I've seen in a while...

Ok, I created a branch which should help finding threats against the king earlier with as little ELO loss as I could manage. It also contains some cosmetic score smoothing, which Master Om previously mentioned he would appreciate. By all means, disregard this if you don't want it. Branch: https://gi...

Even without looking at the position I guessed it would either be: Rook sac, Queen sac, or subtle Queen move. SF is really good about finding minor piece sacrifices but tends to struggle with major pieces. I doubt Rxf5 is really the problem here, but rather Qxh6+ in the followup. I've tried various ...

It's hard to tell much from one game and without seeing the source, but just as a wild guess, I'd suggest try reducing Rook material value by ~8%.

One can compile the library into cutechess by adding -config static to the qmake command.

I'll guess:

W - Komodo

B - Houdini

This is fairly easily and safely fixed by: https://github.com/jhellis3/Stockfish/commit/1b270d5b5e59437ffea7b33ce7f3c96227c15ecf It is safe because opposition does not have pawns, which means there is no fortress which can avoid exchange of material leading a won endgame. The only potential danger i...