X-Git-Url: https://git.auder.net/?p=vchess.git;a=blobdiff_plain;f=client%2Fsrc%2Fvariants%2FChakart.js;h=a1caed452546b99746a49aa4fd323300d1dadf8c;hp=e8b95cb1d4e67d4f6ca4bbcbb6adf35f07d5e94f;hb=107dc1bd5361e2538b1551bdcc37c1e90a444b83;hpb=236485b53993f2adfd588022e2899a39491fc825

diff --git a/client/src/variants/Chakart.js b/client/src/variants/Chakart.js
index e8b95cb1..a1caed45 100644
--- a/client/src/variants/Chakart.js
+++ b/client/src/variants/Chakart.js
@@ -94,7 +94,7 @@ export class ChakartRules extends ChessRules {
     // A click to promote a piece on subTurn 2 would trigger this.
     // For now it would then return [NaN, NaN] because surrounding squares
     // have no IDs in the promotion modal. TODO: improve this?
-    if (!square[0]) return null;
+    if (isNaN(square[0])) return null;
     // If subTurn == 2:
     // if square is empty && firstMove is compatible,
     // complete the move (banana or bomb).