diff --git a/sources/game.cpp b/sources/game.cpp
index 3badeeb..0ee7b67 100644
--- a/sources/game.cpp
+++ b/sources/game.cpp
@@ -3,10 +3,16 @@
 void Game::roll(int pins) { rolls.push_back(pins); };
 
 int Game::score() const {
-  int total;
-
-  for (int roll : rolls) {
-    total += roll;
+  int total = 0;
+  int rollIndex = 0;
+  for (int frame = 0; frame < 10; ++frame) {
+    if (rolls[rollIndex] == 10) {
+      total += 10 + rolls[rollIndex + 1] + rolls[rollIndex + 2];
+      rollIndex++;
+    } else {
+      total += rolls[rollIndex] + rolls[rollIndex + 1];
+      rollIndex += 2;
+    }
   }
 
   return total;
diff --git a/tests/test_game.cpp b/tests/test_game.cpp
index 933c058..e532da8 100644
--- a/tests/test_game.cpp
+++ b/tests/test_game.cpp
@@ -13,4 +13,14 @@ TEST(GameTest, AllOnes) {
   for (int i = 0; i < 20; i++)
     game.roll(1);
   EXPECT_EQ(game.score(), 20);
+}
+
+TEST(GameTest, StrikeForFirstThrowInFrame) {
+  Game game;
+  game.roll(10);
+  game.roll(4);
+  game.roll(2);
+  for (int i = 0; i < 16; i++)
+    game.roll(0);
+  EXPECT_EQ(game.score(), 10 + 4 + 2 + 4 + 2);
 }
\ No newline at end of file