diff --git a/src/renju.cpp b/src/renju.cpp
index 43a4d26..95a7184 100644
--- a/src/renju.cpp
+++ b/src/renju.cpp
@@ -175,7 +175,9 @@ int Renju::countA4(Board *board, const pair<int, int> &p_drt)
                 }
             }
 
-            if ((i_flag & 0x07) == 0x07) //'11101111' or '11110111'
+            if ((i_flag & 0x0F) == 0x0F) // '110111011'
+                i_count = 2;
+            else if ((i_flag & 0x07) == 0x07) //'11101111' or '11110111'
                 i_count = 1;
             else if ((i_flag & 0x03) == 0x03) //'1011101', '10111101'
                 i_count = 2;