X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=client%2Fsrc%2Fvariants%2FSuction.js;h=aa34f6c7f6efc17df189a8e60618aebef4f1a580;hb=616561273f216debfeab7f5fc532d0b0a8bc8e2d;hp=aa28f596e394c1bfd8f8c726afd34f4a066a60fb;hpb=0a9cef131612079e55714f56f1466b4e2bd749af;p=vchess.git

diff --git a/client/src/variants/Suction.js b/client/src/variants/Suction.js
index aa28f596..aa34f6c7 100644
--- a/client/src/variants/Suction.js
+++ b/client/src/variants/Suction.js
@@ -29,8 +29,8 @@ export class SuctionRules extends ChessRules {
   static IsGoodFen(fen) {
     if (!ChessRules.IsGoodFen(fen)) return false;
     const fenParts = fen.split(" ");
-    if (fenParts.length != 6) return false;
-    if (fenParts[5] != "-" && !fenParts[5].match(/^([a-h][1-8]){2}$/))
+    if (fenParts.length != 5) return false;
+    if (fenParts[4] != "-" && !fenParts[4].match(/^([a-h][1-8]){2}$/))
       return false;
     return true;
   }
@@ -121,7 +121,7 @@ export class SuctionRules extends ChessRules {
   // Does m2 un-do m1 ? (to disallow undoing captures)
   oppositeMoves(m1, m2) {
     return (
-      m1 &&
+      !!m1 &&
       m2.vanish.length == 2 &&
       m1.start.x == m2.start.x &&
       m1.end.x == m2.end.x &&