diff --git a/index.html b/index.html
index b719deb..68adfa4 100644
--- a/index.html
+++ b/index.html
@@ -156,6 +156,8 @@ margin-bottom: 4px;
         neighbors at every step ("Step"). Depending on the results obtained, a cell may adopt
         the strategy of a better-performing neighbor, which causes the distribution of colors
         to evolve over successive steps.
+        <p></p>
+        Moreover, one cell randomly change strategy in order to see the emergence of new cluster when the parameters are changed.
     </p>
 
     <h3>Parameters (payoff matrix)</h3>
diff --git a/main.js b/main.js
index 5c0d061..ed7200f 100644
--- a/main.js
+++ b/main.js
@@ -175,6 +175,14 @@ class Party {
             }
         }
 
+        // a random cell change
+        let ni = Math.floor(Math.random() * this.length);
+        let nj = Math.floor(Math.random() * this.length);
+        const index = Math.floor(Math.random() * this.functions.length);
+        newGrid[ni][nj] = this.functions[index];
+
+        this.grid = newGrid;
+
         this.grid = newGrid;
     }
 }
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