@@ -127,7 +127,7 @@ Value eval(const chess::Board &board) {
               (pieceCount[3] + pieceCount[8]) * RookPhase +
               (pieceCount[4] + pieceCount[9]) * QueenPhase;
   phase = (phase * 256 + TotalPhase / 2) / TotalPhase;
-  const int sign = board.sideToMove() == chess::Color::WHITE ? 1 : -1;
+  const int sign = board.side_to_move() == chess::Color::WHITE ? 1 : -1;
   int mgScore = material;
   int egScore = material;
   {
Original file line number	Diff line number	Diff line change
`@@ -127,7 +127,7 @@ Value eval(const chess::Board &board) {`
`127`	`127`	`(pieceCount[3] + pieceCount[8]) * RookPhase +`
`128`	`128`	`(pieceCount[4] + pieceCount[9]) * QueenPhase;`
`129`	`129`	`phase = (phase * 256 + TotalPhase / 2) / TotalPhase;`
`130`		`- const int sign = board.sideToMove() == chess::Color::WHITE ? 1 : -1;`
	`130`	`+ const int sign = board.side_to_move() == chess::Color::WHITE ? 1 : -1;`
`131`	`131`	`int mgScore = material;`
`132`	`132`	`int egScore = material;`
`133`	`133`	`{`