if (this.movesCount <= 1) {
const firstRank = (this.movesCount == 0 ? 9 : 0);
const initDestFile = new Map([[1, 2], [7, 6]]);
if (this.movesCount <= 1) {
const firstRank = (this.movesCount == 0 ? 9 : 0);
const initDestFile = new Map([[1, 2], [7, 6]]);