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Syzygy tablebases

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Adds support for Syzygy tablebases to Stockfish.  See
the Readme for information on using the tablebases.

Tablebase support can be enabled/disabled at the Makefile
level as well, by setting syzygy=yes or syzygy=no.

Big/little endian are both supported.

No functional change (if Tablebases are not used).

Resolves #6
This commit is contained in:
Ronald de Man
2014-11-26 07:45:28 +08:00
committed by Gary Linscott
parent 4509eb1342
commit 7caa6cd338
12 changed files with 2837 additions and 6 deletions
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2
src/uci.cpp
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@@ -227,7 +227,7 @@ string UCI::format_value(Value v, Value alpha, Value beta) {
stringstream ss;
if (abs(v) < VALUE_MATE_IN_MAX_PLY)
if (abs(v) < VALUE_MATE - MAX_PLY)
ss << "cp " << v * 100 / PawnValueEg;
else
ss << "mate " << (v > 0 ? VALUE_MATE - v + 1 : -VALUE_MATE - v) / 2;