Remove candidate passers w/o feasible lever

[stockfish] / src / pawns.cpp

diff --git a/src/pawns.cpp b/src/pawns.cpp
index 0017b8044d8a1c3878546ed12fa09d836054a63c..63bc596fcba4cbb9b280c243af89fccc7fc7bff3 100644 (file)
--- a/src/pawns.cpp
+++ b/src/pawns.cpp
@@ -118,6 +118,7 @@ namespace {
         // (a) there is no stoppers except some levers
         // (b) the only stoppers are the leverPush, but we outnumber them
         // (c) there is only one front stopper which can be levered.
+        //     (Refined in Evaluation::passed)
         passed =   !(stoppers ^ lever)
                 || (   !(stoppers ^ leverPush)
                     && popcount(phalanx) >= popcount(leverPush))