X-Git-Url: https://git.auder.net/?a=blobdiff_plain;ds=sidebyside;f=client%2Fsrc%2Fvariants%2FGrand.js;h=aeb7b6f4dfb86690a20f48433d58d729526eb9db;hb=472c0c4f5aa29d96e080873ebfce2a04f664d852;hp=0809a65dc075d3adceae3b86595049637c0ee646;hpb=6f2f94374f1e73c375edf732d9425e575e81fff7;p=vchess.git

diff --git a/client/src/variants/Grand.js b/client/src/variants/Grand.js
index 0809a65d..aeb7b6f4 100644
--- a/client/src/variants/Grand.js
+++ b/client/src/variants/Grand.js
@@ -9,20 +9,13 @@ export class GrandRules extends ChessRules {
     if (!ChessRules.IsGoodFen(fen)) return false;
     const fenParsed = V.ParseFen(fen);
     // 5) Check captures
-    if (!fenParsed.captured || !fenParsed.captured.match(/^[0-9]{14,14}$/))
+    if (!fenParsed.captured || !fenParsed.captured.match(/^[0-9]{12,12}$/))
       return false;
     return true;
   }
 
   static IsGoodEnpassant(enpassant) {
-    if (enpassant != "-") {
-      const squares = enpassant.split(",");
-      if (squares.length > 2) return false;
-      for (let sq of squares) {
-        const ep = V.SquareToCoords(sq);
-        if (isNaN(ep.x) || !V.OnBoard(ep)) return false;
-      }
-    }
+    if (enpassant != "-") return !!enpassant.match(/^([a-j][0-9]{1,2},?)+$/);
     return true;
   }
 
@@ -139,7 +132,7 @@ export class GrandRules extends ChessRules {
         }
       ];
       if (sx + 2 * step != ex) {
-        //3-squares move
+        // 3-squares jump
         res.push({
           x: sx + 2 * step,
           y: sy
@@ -225,7 +218,7 @@ export class GrandRules extends ChessRules {
     // En passant
     const Lep = this.epSquares.length;
     const epSquare = this.epSquares[Lep - 1];
-    if (epSquare) {
+    if (!!epSquare) {
       for (let epsq of epSquare) {
         // TODO: some redundant checks
         if (epsq.x == x + shiftX && Math.abs(epsq.y - y) == 1) {
@@ -328,9 +321,11 @@ export class GrandRules extends ChessRules {
 
   static GenRandInitFen(randomness) {
     if (randomness == 0) {
-      // No castling in the official initial setup
-      return "r8r/1nbqkmcbn1/pppppppppp/91/91/91/91/PPPPPPPPPP/1NBQKMCBN1/R8R " +
-        "w 0 zzzz - 00000000000000";
+      return (
+        "r8r/1nbqkmcbn1/pppppppppp/91/91/91/91/PPPPPPPPPP/1NBQKMCBN1/R8R " +
+        // No castling in the official initial setup
+        "w 0 zzzz - 00000000000000"
+      );
     }
 
     let pieces = { w: new Array(10), b: new Array(10) };
@@ -378,7 +373,8 @@ export class GrandRules extends ChessRules {
       let cardinalPos = positions[randIndex];
       positions.splice(randIndex, 1);
 
-      // Rooks and king positions are now fixed, because of the ordering rook-king-rook
+      // Rooks and king positions are now fixed,
+      // because of the ordering rook-king-rook
       let rook1Pos = positions[0];
       let kingPos = positions[1];
       let rook2Pos = positions[2];