import { ChessRules, PiPo } from "@/base_rules";
-export const VariantRules = class AtomicRules extends ChessRules {
+export class AtomicRules extends ChessRules {
getEpSquare(moveOrSquare) {
if (typeof moveOrSquare !== "object" || moveOrSquare.appear.length > 0)
return super.getEpSquare(moveOrSquare);