- // Check opposite moves here --> we have lastMoves[L-1],
- // which is completed (merged) with current played move if subTurn == 2
-// return moves.filter(m => {
-// const L = this.amoves.length; //at least 1: init from FEN
-// return !this.oppositeMoves(this.amoves[L - 1], m);
-// });