From: Steinar H. Gunderson <sgunderson@bigfoot.com>
Date: Tue, 1 May 2018 11:44:33 +0000 (+0200)
Subject: Add support for 7-man Syzygy tablebases.
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=9da105cffe599884c20f328ebb86a129c58c2ba7

Add support for 7-man Syzygy tablebases.
---

diff --git a/src/syzygy/tbprobe.cpp b/src/syzygy/tbprobe.cpp
index 57c7d872..94d73714 100644
--- a/src/syzygy/tbprobe.cpp
+++ b/src/syzygy/tbprobe.cpp
@@ -74,7 +74,7 @@ int MapB1H1H7[SQUARE_NB];
 int MapA1D1D4[SQUARE_NB];
 int MapKK[10][SQUARE_NB]; // [MapA1D1D4][SQUARE_NB]
 
-int Binomial[6][SQUARE_NB];    // [k][n] k elements from a set of n elements
+int Binomial[7][SQUARE_NB];    // [k][n] k elements from a set of n elements
 int LeadPawnIdx[6][SQUARE_NB]; // [leadPawnsCnt][SQUARE_NB]
 int LeadPawnsSize[6][4];       // [leadPawnsCnt][FILE_A..FILE_D]
 
@@ -1293,7 +1293,7 @@ void Tablebases::init(const std::string& paths) {
     Binomial[0][0] = 1;
 
     for (int n = 1; n < 64; n++) // Squares
-        for (int k = 0; k < 6 && k <= n; ++k) // Pieces
+        for (int k = 0; k < 7 && k <= n; ++k) // Pieces
             Binomial[k][n] =  (k > 0 ? Binomial[k - 1][n - 1] : 0)
                             + (k < n ? Binomial[k    ][n - 1] : 0);