const color = this.getColor(i, j);
const piece = this.getPiece(i, j);
addPiece(i, j, "g_pieces", this.pieces(color, i, j)[piece]["class"]);
const color = this.getColor(i, j);
const piece = this.getPiece(i, j);
addPiece(i, j, "g_pieces", this.pieces(color, i, j)[piece]["class"]);