diff --git a/connect.json b/connect.json
new file mode 100644
index 0000000000..cfd9ae66c7
--- /dev/null
+++ b/connect.json
@@ -0,0 +1,95 @@
+{
+  "cases": [
+    {
+      "description": "an empty board has no winner",
+      "board": [
+        ". . . . .",
+        " . . . . .",
+        "  . . . . .",
+        "   . . . . .",
+        "    . . . . ."
+      ],
+      "expected": ""
+    },
+    {
+      "description": "only edges does not make a winner",
+      "board": [
+        "O O O X",
+        " X . . X",
+        "  X . . X",
+        "   X O O O"
+      ],
+      "expected": ""
+    },
+    {
+      "description": "illegal diagonal does not make a winner",
+      "board": [
+        "X O . .",
+        " O X X X",
+        "  O X O .",
+        "   . O X .",
+        "    X X O O"
+      ],
+      "expected": ""
+    },
+    {
+      "description": "nobody wins crossing adjacent angles",
+      "board": [
+         "X . . .",
+         " . X O .",
+         "  O . X O",
+         "   . O . X",
+         "    . . O ."
+      ],
+      "expected": ""
+    },
+    {
+      "description": "X wins crossing from left to right",
+      "board": [
+        ". O . .",
+        " O X X X",
+        "  O X O .",
+        "   X X O X",
+        "    . O X ."
+      ],
+      "expected": "X"
+    },
+    {
+      "description": "O wins crossing from top to bottom",
+      "board": [
+        ". O . .",
+        " O X X X",
+        "  O O O .",
+        "   X X O X",
+        "    . O X ."
+      ],
+      "expected": "O"
+    },
+    {
+      "description": "X wins using a convoluted path",
+      "board": [
+        ". X X . .",
+        " X . X . X",
+        "  . X . X .",
+        "   . X X . .",
+        "    O O O O O"
+      ], 
+      "expected": "X"
+    },
+    {
+      "description": "X wins using a spiral path",
+      "board": [
+        "O X X X X X X X X",
+        " O X O O O O O O O",
+        "  O X O X X X X X O",
+        "   O X O X O O O X O",
+        "    O X O X X X O X O",
+        "     O X O O O X O X O",
+        "      O X X X X X O X O",
+        "       O O O O O O O X O",
+        "        X X X X X X X X O"
+      ],
+      "expected": "X"
+    }
+  ]
+}
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