Set piece value for black custom pieces (#967)

ianfab · web-flow · commit a8d6b2596aa7 · 2026-01-08T18:52:52.000+01:00
Fixes #966.
diff --git a/src/psqt.cpp b/src/psqt.cpp
@@ -199,8 +199,8 @@ void init(const Variant* v) {
       PieceType pt = pop_lsb(ps);
       if (is_custom(pt))
       {
-          PieceValue[MG][pt] = piece_value(MG, pt);
-          PieceValue[EG][pt] = piece_value(EG, pt);
+          PieceValue[MG][make_piece(WHITE, pt)] = PieceValue[MG][make_piece(BLACK, pt)] = piece_value(MG, pt);
+          PieceValue[EG][make_piece(WHITE, pt)] = PieceValue[EG][make_piece(BLACK, pt)] = piece_value(EG, pt);
       }
 
       if (PieceValue[MG][pt] > PieceValue[MG][strongestPiece])

Original file line number	Diff line number	Diff line change
`@@ -199,8 +199,8 @@ void init(const Variant* v) {`
`199`	`199`	`PieceType pt = pop_lsb(ps);`
`200`	`200`	`if (is_custom(pt))`
`201`	`201`	`{`
`202`		`- PieceValue[MG][pt] = piece_value(MG, pt);`
`203`		`- PieceValue[EG][pt] = piece_value(EG, pt);`
	`202`	`+ PieceValue[MG][make_piece(WHITE, pt)] = PieceValue[MG][make_piece(BLACK, pt)] = piece_value(MG, pt);`
	`203`	`+ PieceValue[EG][make_piece(WHITE, pt)] = PieceValue[EG][make_piece(BLACK, pt)] = piece_value(EG, pt);`
`204`	`204`	`}`
`205`	`205`
`206`	`206`	`if (PieceValue[MG][pt] > PieceValue[MG][strongestPiece])`