X-Git-Url: https://git.auder.net/?p=vchess.git;a=blobdiff_plain;f=client%2Fsrc%2Fvariants%2FThreechecks.js;h=f3b77254ea502058a347773f6dd91f623520d7b1;hp=c1d5c5a92337598cf6fdbc5ff3231babf00ee8ff;hb=6b7b2cf720e6255e4da0dc34fee363c456346a58;hpb=f5a31ba0f98d215d432b7d3c86388af749df33a4

diff --git a/client/src/variants/Threechecks.js b/client/src/variants/Threechecks.js
index c1d5c5a9..f3b77254 100644
--- a/client/src/variants/Threechecks.js
+++ b/client/src/variants/Threechecks.js
@@ -27,7 +27,7 @@ export const VariantRules = class ThreechecksRules extends ChessRules {
   getPpath(b) {
     // TODO: !!this.checkFlags condition for printDiagram, but clearly not good.
     // This is just a temporary fix.
-    if (b[1] == 'k' && this.checkFlags && this.checkFlags[b[0]] > 0)
+    if (b[1] == 'k' && !!this.checkFlags && this.checkFlags[b[0]] > 0)
       return "Threechecks/" + b[0] + 'k_' + this.checkFlags[b[0]];
     return b;
   }