X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsyzygy%2Ftbprobe.cpp;fp=src%2Fsyzygy%2Ftbprobe.cpp;h=3dfe3e3e481053d581703954c44ce62dec5b1a3f;hp=20215b96d1f7798abece5308bbe41cede33a3a25;hb=a0afe32d16554ff3b5c74f34ae56400f35759edf;hpb=e0bafa1911ede61b9268e0b461a5d8856d6cd6be

diff --git a/src/syzygy/tbprobe.cpp b/src/syzygy/tbprobe.cpp
index 20215b96..3dfe3e3e 100644
--- a/src/syzygy/tbprobe.cpp
+++ b/src/syzygy/tbprobe.cpp
@@ -758,7 +758,7 @@ Ret do_probe_table(const Position& pos, T* entry, WDLScore wdl, ProbeState* resu
     if (entry->hasPawns) {
         idx = LeadPawnIdx[leadPawnsCnt][squares[0]];
 
-        std::sort(squares + 1, squares + leadPawnsCnt, pawns_comp);
+        std::stable_sort(squares + 1, squares + leadPawnsCnt, pawns_comp);
 
         for (int i = 1; i < leadPawnsCnt; ++i)
             idx += Binomial[i][MapPawns[squares[i]]];
@@ -859,7 +859,7 @@ encode_remaining:
 
     while (d->groupLen[++next])
     {
-        std::sort(groupSq, groupSq + d->groupLen[next]);
+        std::stable_sort(groupSq, groupSq + d->groupLen[next]);
         uint64_t n = 0;
 
         // Map down a square if "comes later" than a square in the previous