Simplify pruning moves with negative SEE

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index e8ca5c5896d3302edf467b5cedfc11519fb169cd..f39f1de1c639e7e03703f41bdd458eeefb0c004b 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1478,9 +1478,7 @@ moves_loop: // When in check, search starts from here
                        && !pos.capture(move);
 
       // Don't search moves with negative SEE values
-      if (  (!inCheck || evasionPrunable)
-          && !(givesCheck && pos.is_discovery_check_on_king(~pos.side_to_move(), move))
-          && !pos.see_ge(move))
+      if (  (!inCheck || evasionPrunable) && !pos.see_ge(move))
           continue;
 
       // Speculative prefetch as early as possible
@@ -1741,7 +1739,7 @@ string UCI::pv(const Position& pos, Depth depth, Value alpha, Value beta) {
 
   for (size_t i = 0; i < multiPV; ++i)
   {
-      bool updated = (i <= pvIdx && rootMoves[i].score != -VALUE_INFINITE);
+      bool updated = rootMoves[i].score != -VALUE_INFINITE;
 
       if (depth == 1 && !updated)
           continue;