diff --git a/src/app.rs b/src/app.rs
index db02bd1..f3bd657 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -1,13 +1,39 @@
 
+use graphics::*;
 use piston::*;
 
-pub struct App;
+use board::Board;
+
+pub struct App {
+    board: Board,
+}
 
 impl App {
     pub fn new() -> App {
-        App
+        App {
+            board: Board::new(),
+        }
     }
 }
 
 impl Game for App {
+    fn render(&self, c: &Context, gl: &mut Gl) {
+        self.board.render(c, gl);
+    }
+
+    fn update(&mut self, _dt: f64, _asset_store: &mut AssetStore) {}
+
+    fn load(&mut self, _asset_store: &mut AssetStore) {}
+
+    fn key_press(
+        &mut self,
+        _key: keyboard::Key,
+        _asset_store: &mut AssetStore
+    ) {}
+
+    fn key_release(
+        &mut self,
+        _key: keyboard::Key,
+        _asset_store: &mut AssetStore
+    ) {}
 }
diff --git a/src/main.rs b/src/main.rs
index ff94da0..fb45b67 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -9,6 +9,7 @@ extern crate piston;
 use piston::*;
 
 mod app;
+mod board;
 mod settings;
 
 type GameWindowBackEnd = GameWindowSDL2;
diff --git a/src/settings.rs b/src/settings.rs
index ae70b21..5418579 100644
--- a/src/settings.rs
+++ b/src/settings.rs
@@ -1,35 +1,46 @@
 
 pub static ASSET_FOLDER: &'static str = "assets";
 
-pub static WINDOW_SIZE: [u32, ..2] = [400, 400];
+pub static WINDOW_SIZE: [u32, ..2] = [
+    (BOARD_PADDING * 2.0 + BOARD_SIZE[0]) as u32,
+    (BOARD_PADDING * 2.0 + BOARD_SIZE[1] + BOARD_OFFSET_Y) as u32,
+];
 pub static WINDOW_BACKGROUND_COLOR: [f32, ..4] = [250.0 / 255.0, 248.0 / 255.0, 239.0 / 255.0, 1.0];
-pub static WINDOW_PADDING: f64 = 12.0;
 
-pub static TILE_SIZE: [f64, ..2] = [72.0, 72.0];
-pub static TILE_PADDING: f64 = 12.0;
+pub static BOARD_PADDING: f64 = 12.0;
+pub static BOARD_SIZE: [f64, ..2] = [
+    TILE_SIZE * TILE_WIDTH as f64 + TILE_PADDING * (TILE_WIDTH + 1) as f64,
+    TILE_SIZE * TILE_HEIGHT as f64 + TILE_PADDING * (TILE_HEIGHT + 1) as f64,
+];
+pub static BOARD_OFFSET_Y: f64 = 128.0;
+
+pub static TILE_WIDTH: uint = 4;
+pub static TILE_HEIGHT: uint = 4;
+pub static TILE_SIZE: f64 = 96.0;
+pub static TILE_PADDING: f64 = 16.0;
 pub static TILE_BACKGROUND_COLOR: [f32, ..4] = [187.0 / 255.0, 173.0 / 255.0, 160.0 / 255.0, 1.0];
-pub static TILES_COLOR: [[f32, ..4], ..12] = [
-    /// empty color
+pub static TILES_COLOR: [[f32, ..4], ..10] = [
+    // empty color
     [204.0 / 255.0, 192.0 / 255.0, 179.0 / 255.0, 1.0],
-    /// 2 color
+    // 2 color
     [238.0 / 255.0, 228.0 / 255.0, 218.0 / 255.0, 1.0],
-    /// 4 color
+    // 4 color
     [237.0 / 255.0, 224.0 / 255.0, 200.0 / 255.0, 1.0],
-    /// 8 color
+    // 8 color
     [242.0 / 255.0, 177.0 / 255.0, 121.0 / 255.0, 1.0],
-    /// 16 color
+    // 16 color
     [245.0 / 255.0, 149.0 / 255.0, 99.0 / 255.0, 1.0],
-    /// 32 color
+    // 32 color
     [246.0 / 255.0, 124.0 / 255.0, 95.0 / 255.0, 1.0],
-    /// 64 color
+    // 64 color
     [246.0 / 255.0, 94.0 / 255.0, 59.0 / 255.0, 1.0],
-    /// 128 color
+    // 128 color
     [237.0 / 255.0, 207.0 / 255.0, 114.0 / 255.0, 1.0],
-    /// 256 color
+    // 256 color
     [237.0 / 255.0, 204.0 / 255.0, 97.0 / 255.0, 1.0],
-    /// 512 color
+    // 512 color
     [237.0 / 255.0, 200.0 / 255.0, 80.0 / 255.0, 1.0],
-]
+];
 
 pub static LABEL_COLOR: [f32, ..4] = [187.0 / 255.0, 173.0 / 255.0, 160.0 / 255.0, 1.0];
 pub static BUTTON_COLOR: [f32, ..4] = [142.0 / 255.0, 122.0 / 255.0, 102.0 / 255.0, 1.0];