Develop

locales/en/apgames.json

@@ -1346,11 +1346,11 @@
                 "name": "37x37 board"
             },
             "#ruleset": {
-                "description": "Area counting; situational superko",
+                "description": "Area scoring; situational superko",
                 "name": "AGA Rules"
             },
             "positional": {
-                "description": "Area counting; positional superko",
+                "description": "Area scoring; positional superko",
                 "name": "Positional Superko"
             }
         },

src/games/product.ts

@@ -451,7 +451,7 @@ export class ProductGame extends GameBase {
 
         if (this.gameover) {
             // tied scores is a P2 win
-            this.winner = this.getPlayerScore(1) > this.getPlayerScore(2) ? [1] : [2];
+            this.winner = this.getPlayerScore(1) >= this.getPlayerScore(2) ? [1] : [2];
             this.results.push(
                 {type: "eog"},
                 {type: "winners", players: [...this.winner]}

src/games/spora.ts

@@ -416,6 +416,27 @@ export class SporaGame extends GameBase {
         return this.findDead(this.currplayer, cloned).length === 0;
     }
 
+    // this method is called at the end, when the last player makes a sequence of placements
+    // in this case, after placing some stones, some captures might become legal,
+    //  so we need to try placing piece by piece, and evaluate their validity
+    private validSequence(cells: string[]): boolean {
+        const prevplayer = this.currplayer === 1 ? 2 : 1;
+        // we'll simulate the process in a cloned board
+        const cloned = this.cloneBoard();
+        for (const cell of cells) {
+            // place the stack (herein, its size is irrelevant)
+            cloned.set(cell, [this.currplayer, 1]);
+            // compute all enemy captures
+            const dead = this.findDead(prevplayer, cloned);
+            dead.forEach(cell => cloned.delete(cell));
+            // if there are still friendly captures, the placement is illegal
+            if (this.findDead(this.currplayer, cloned).length > 0) {
+                return false;
+            }
+        }
+        return true;
+    }
+
     // What pieces are orthogonally adjacent to a given area?
     public getAdjacentPieces(area: string[], pieces: string[]): string[] {
       // convert area strings to numeric coordinates
@@ -546,11 +567,12 @@ export class SporaGame extends GameBase {
                     result.message = i18next.t("apgames:validation.spora.MAXIMUM_STACK");
                     return result;
                 }
-                if (! this.validPlacement(cell) ) {
-                    result.valid = false;
-                    result.message = i18next.t("apgames:validation.spora.SELF_CAPTURE");
-                    return result;
-                }
+            }
+            // check if the sequence of placements are able to make legal captures
+            if (! this.validSequence(cells) ) {
+                result.valid = false;
+                result.message = i18next.t("apgames:validation.spora.SELF_CAPTURE");
+                return result;
             }
             result.valid = true;
             result.complete = this.reserve[this.currplayer - 1] > cells.length ? -1 : 1; // end when all pieces are on board