diff --git a/ruleset.go b/ruleset.go
index 052f127..ccba1b5 100644
--- a/ruleset.go
+++ b/ruleset.go
@@ -35,5 +35,5 @@ type SnakeMove struct {
 type Ruleset interface {
 	CreateInitialBoardState(width int32, height int32, snakeIDs []string) (*BoardState, error)
 	CreateNextBoardState(prevState *BoardState, moves []SnakeMove) (*BoardState, error)
-	IsGameFinished(state *BoardState) (bool, error)
+	IsGameOver(state *BoardState) (bool, error)
 }
diff --git a/solo_test.go b/solo_test.go
index 8e4b636..cbb3ef9 100644
--- a/solo_test.go
+++ b/solo_test.go
@@ -6,6 +6,10 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
+func TestSoloRulesetInterface(t *testing.T) {
+	var _ Ruleset = (*SoloRuleset)(nil)
+}
+
 func TestSoloCreateNextBoardStateSanity(t *testing.T) {
 	boardState := &BoardState{}
 	r := SoloRuleset{}
diff --git a/standard_test.go b/standard_test.go
index 94d69bd..ff902c4 100644
--- a/standard_test.go
+++ b/standard_test.go
@@ -9,6 +9,10 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
+func TestStandardRulesetInterface(t *testing.T) {
+	var _ Ruleset = (*StandardRuleset)(nil)
+}
+
 func TestSanity(t *testing.T) {
 	r := StandardRuleset{}
 
diff --git a/team_test.go b/team_test.go
index 473417c..101fa83 100644
--- a/team_test.go
+++ b/team_test.go
@@ -6,6 +6,10 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
+func TestTeamRulesetInterface(t *testing.T) {
+	var _ Ruleset = (*TeamRuleset)(nil)
+}
+
 func TestCreateNextBoardStateSanity(t *testing.T) {
 	boardState := &BoardState{}
 	r := TeamRuleset{}