X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fbitbase.cpp;h=2b1a5517fb8152df1809f0f508e082177660fb39;hp=8c8c47020bb2678d74ddc45628bd87f152e6ff88;hb=6f3796adaf44c48cf1353181d386a61a57859b67;hpb=c8589903777b6e0289640b43fae966ded442af48 diff --git a/src/bitbase.cpp b/src/bitbase.cpp index 8c8c4702..2b1a5517 100644 --- a/src/bitbase.cpp +++ b/src/bitbase.cpp @@ -27,7 +27,8 @@ namespace { - // There are 24 possible pawn squares: the first 4 files and ranks from 2 to 7 + // There are 24 possible pawn squares: files A to D and ranks from 2 to 7. + // Positions with the pawn on files E to H will be mirrored before probing. constexpr unsigned MAX_INDEX = 2*24*64*64; // stm * psq * wksq * bksq = 196608 // Each uint32_t stores results of 32 positions, one per bit