// Build switch move between squares x1,y1 and x2,y2
getSwitchMove_s([x1, y1], [x2, y2]) {
const c = this.getColor(x1, y1); //same as color at square 2
// Build switch move between squares x1,y1 and x2,y2
getSwitchMove_s([x1, y1], [x2, y2]) {
const c = this.getColor(x1, y1); //same as color at square 2