diff --git a/graph/src/main/scala/tf/bug/fancadegraph/BlockDefinition.scala b/graph/src/main/scala/tf/bug/fancadegraph/BlockDefinition.scala
index 4e629bc..eb635fd 100644
--- a/graph/src/main/scala/tf/bug/fancadegraph/BlockDefinition.scala
+++ b/graph/src/main/scala/tf/bug/fancadegraph/BlockDefinition.scala
@@ -1222,4 +1222,51 @@ object BlockDefinition {
     )
   }
 
+  case object SetNumberReference extends BuiltIn[Unit] {
+    override val width: Int = 2
+    override val height: Int = 1
+    override val depth: Int = 2
+    override val ids: Vector[Obj] = Vector(
+      Obj.setNumberReference0,
+      Obj.setNumberReference1,
+      Obj.setNumberReference2,
+      Obj.setNumberReference3
+    )
+
+    val after: PinDefinition =
+      PinDefinition(
+        PinType.Pull,
+        PinDirection.Input,
+        PinPosition.top2(0)
+      )
+
+    val before: PinDefinition =
+      PinDefinition(
+        PinType.Pull,
+        PinDirection.Output,
+        PinPosition.bottom(0)
+      )
+
+    val reference: PinDefinition =
+      PinDefinition(
+        PinType.Pointer(PinType.Number),
+        PinDirection.Input,
+        PinPosition.left(1)
+      )
+
+    val value: PinDefinition =
+      PinDefinition(
+        PinType.Number,
+        PinDirection.Input,
+        PinPosition.left(0)
+      )
+
+    override val pins: Vector[PinDefinition] = Vector(
+      after,
+      before,
+      reference,
+      value
+    )
+  }
+
 }
diff --git a/tagless/src/main/scala/tf/bug/fancadetagless/Fanscript.scala b/tagless/src/main/scala/tf/bug/fancadetagless/Fanscript.scala
index 05db602..72c957c 100644
--- a/tagless/src/main/scala/tf/bug/fancadetagless/Fanscript.scala
+++ b/tagless/src/main/scala/tf/bug/fancadetagless/Fanscript.scala
@@ -61,6 +61,9 @@ trait Fanscript[F[_]] {
 
   def addNumbers(a: F[Float], b: F[Float]): F[Float]
 
+  def numberVariable(name: String): F[Float]
+  def setNumber(reference: F[Float], value: F[Float], after: () => F[Unit]): F[Unit]
+
   def screenSizeWidth(screenSize: F[ScreenSize]): F[Float]
   def screenSizeHeight(screenSize: F[ScreenSize]): F[Float]
 
@@ -201,6 +204,33 @@ object Fanscript {
         screenSize,
         Vector(1)
       ))
+
+    override def numberVariable(name: String): Fancade[Float] =
+      Fix(FancadeF.Create(
+        Vector(),
+        Exists(Template(
+          BlockDefinition.GetNumber,
+          name
+        )),
+        Vector(),
+        Vector(BlockDefinition.GetNumber.output)
+      ))
+    override def setNumber(reference: Fancade[Float], value: Fancade[Float], after: () => Fancade[Unit]): Fancade[Unit] = {
+      val us = Fix(FancadeF.Create(
+        Vector(reference, value),
+        Exists(Template(
+          BlockDefinition.SetNumberReference,
+          ()
+        )),
+        Vector(BlockDefinition.SetNumberReference.reference, BlockDefinition.SetNumberReference.value),
+        Vector(BlockDefinition.SetNumberReference.before)
+      ))
+      Fix(FancadeF.Sequence(
+        us,
+        BlockDefinition.SetNumberReference.after,
+        after()
+      ))
+    }
     
     override def positionPosition(position: Fancade[Position]): Fancade[Vector3] = ???
     override def positionRotation(position: Fancade[Position]): Fancade[Rotation] = ???
diff --git a/tagless/src/main/scala/tf/bug/fancadetagless/Main.scala b/tagless/src/main/scala/tf/bug/fancadetagless/Main.scala
index 8c9e162..d2e9faa 100644
--- a/tagless/src/main/scala/tf/bug/fancadetagless/Main.scala
+++ b/tagless/src/main/scala/tf/bug/fancadetagless/Main.scala
@@ -17,13 +17,12 @@ object Main extends IOApp {
   def program[F[_] : Sync : ContextShift]: Stream[F, Unit] = {
     val program = new Fanscript.Program[Unit] {
       override def run[G[_]](implicit interp: Fanscript[G]): G[Unit] = {
-        val screenSize = interp.screenSize
-        val screenWidth = interp.screenSizeWidth(screenSize)
-        val inspectWidth = interp.inspect(screenWidth, () => {
-          val screenHeight = interp.screenSizeHeight(screenSize)
-          interp.inspect(screenHeight, () => interp.unit)
-        })
-        inspectWidth
+        val score = interp.numberVariable("Score")
+        val one = interp.lift(1.0F)
+        val addToScore = interp.addNumbers(score, one)
+        val setScore = interp.setNumber(score, addToScore, () => interp.unit)
+        val inspectScore = interp.inspect(score, () => setScore)
+        inspectScore
       }
     }