diff --git a/src/display3d.rs b/src/display3d.rs
index 56d7a6f..4addff8 100644
--- a/src/display3d.rs
+++ b/src/display3d.rs
@@ -2,10 +2,7 @@
 //   Intro animation
 //   Turn changing animations
 // TODO: Pickup/put-down sound in 3d
-// TODO: Unify the selection logic
-//   If you select in 2d, it should "be" selected in 3d.
-//   And if you select in 3d, 2d is selected.
-// TODO: De-select pieces
+// TODO: Background during menu
 
 use crate::{
     game::{Board, BoardIndex, Piece, Side},
@@ -564,7 +561,7 @@ fn pick_up(
                         animation.expect("Pickup Animation").clone(),
                         Duration::from_secs_f32(0.75),
                     )
-                    .play_with_transition(
+                    .start_with_transition(
                         idle.expect("Idle animation").clone(),
                         Duration::from_secs_f32(1.5),
                     )
@@ -593,7 +590,7 @@ fn put_down(
                         game::Piece::Pawn => gltf.named_animations.get("PawnPutDown"),
                     };
                     player
-                        .play_with_transition(
+                        .start_with_transition(
                             animation.expect("PutDown Animation").clone(),
                             Duration::from_secs_f32(0.75),
                         )
diff --git a/src/game.rs b/src/game.rs
index 57eb053..9038d6b 100644
--- a/src/game.rs
+++ b/src/game.rs
@@ -19,6 +19,10 @@ impl Plugin for GamePlugin {
                     select_sync.run_if(any_component_added::<Selected>),
                     deselect_sync.run_if(any_component_removed::<Selected>()),
                     move_piece.run_if(any_component_added::<Selected>),
+                    exclusive_select::<display2d::Display2d>
+                        .run_if(any_component_added::<Selected>),
+                    exclusive_select::<display2d::Display2d>
+                        .run_if(any_component_added::<Selected>),
                 ),
             )
             .add_systems(
@@ -334,6 +338,7 @@ fn deselect_sync(
     })
 }
 
+/// Triggered when right-mouse-button clicked
 fn cancel_place(current: Query<Entity, (With<Selected>, With<Piece>)>, mut commands: Commands) {
     current.iter().for_each(|entity| {
         info!("De-selecting {:?}", entity);
@@ -368,3 +373,19 @@ fn move_piece(
         commands.entity(tile).remove::<Selected>();
     });
 }
+
+/// TEMPORARY: Exclusive selection; only select one piece at a time
+fn exclusive_select<T: Component>(
+    events: Query<Entity, (Added<Selected>, With<Piece>, With<T>)>,
+    selected: Query<Entity, (With<Selected>, With<Piece>, With<T>)>,
+    mut commands: Commands,
+) {
+    // Iterate over selected component markers on pieces
+    events.iter().for_each(|entity| {
+        // Selected > 2 (one for each display2d/3d)
+        selected.iter().filter(|&e| e != entity).for_each(|e| {
+            // Remove the previously added selected marker
+            commands.entity(e).remove::<Selected>();
+        });
+    });
+}