this.play(move);
let res = [ ];
if (this.kingPos[c][0] < 0)
res = [saveKingPos];
else if (this.isAttacked(this.kingPos[c], this.getOppCol(c)))
this.play(move);
let res = [ ];
if (this.kingPos[c][0] < 0)
res = [saveKingPos];
else if (this.isAttacked(this.kingPos[c], this.getOppCol(c)))