diff --git a/src/Coffee/Table.php b/src/Coffee/Table.php
index 400b3f5..7fdcf0e 100644
--- a/src/Coffee/Table.php
+++ b/src/Coffee/Table.php
@@ -67,10 +67,21 @@ class Table {
     }
 
     /**
-     * @param Position $position
+     * @param Position $searchedPosition
+     * @return int|null
      */
-    public function getSpotIndexByPosition(Position $position) {
+    public function getSpotIndexByPosition(Position $searchedPosition) {
+        // Linear search
+        // TODO: try to find a faster way
+        foreach ($this->getSpots() as $spotIndex => $spot) {
+            foreach ($spot->getPositions() as $position) {
+                if ($searchedPosition->isTheSamePosition($position)) {
+                    return $spotIndex;
+                }
+            }
+        }
 
+        return null;
     }
 
     /**
diff --git a/tests/Coffee/TableTest.php b/tests/Coffee/TableTest.php
index 80219c8..11b417f 100644
--- a/tests/Coffee/TableTest.php
+++ b/tests/Coffee/TableTest.php
@@ -117,17 +117,17 @@ class TableTest extends \PHPUnit_Framework_TestCase {
         $this->assertEquals(6, $table->getLargestSpot()->getSize());
     }
 
-//    public function testSpotIndexByPosition() {
-//        $map = new Map([
-//            [0, 1, 1, 0, 0],
-//            [1, 1, 1, 0, 1],
-//            [0, 0, 1, 0, 1],
-//            [1, 0, 0, 0, 0],
-//        ]);
-//
-//        $table = new Table($map);
-//        $position = new Position(1, 2);
-//
-//        $this->assertEquals(1, $table->getSpotIndexByPosition($position));
-//    }
+    public function testSpotIndexByPosition() {
+        $map = new Map([
+            [0, 1, 1, 0, 0],
+            [1, 1, 1, 0, 1],
+            [0, 0, 1, 0, 1],
+            [1, 0, 0, 0, 0],
+        ]);
+
+        $table = new Table($map);
+        $position = new Position(4, 1);
+
+        $this->assertEquals(2, $table->getSpotIndexByPosition($position));
+    }
 }