this.playOnBoard(m);
m.appear.forEach(a => this.toggleWorld(a.x, a.y));
const kingAppear = m.appear.find(a => this.isKing(0, 0, a.p));
- const target = kingAppear ? [kingAppear.x, kingAppear.y] : kingPos;
+ const target = [kingAppear ? [kingAppear.x, kingAppear.y] : kingPos];
const res = this.underCheck(target, oppCol);
m.appear.forEach(a => this.toggleWorld(a.x, a.y));
this.undoOnBoard(m);