diff --git a/app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/HomeScreen.kt b/app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/HomeScreen.kt
index 91acf05..7891aed 100644
--- a/app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/HomeScreen.kt
+++ b/app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/HomeScreen.kt
@@ -3,7 +3,6 @@ package fr.uparis.diamantkennel.memorisationapplication
 import android.app.Activity
 import android.content.Context
 import android.content.Intent
-import android.widget.Toast
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.compose.foundation.layout.Arrangement
@@ -113,7 +112,9 @@ fun HomeScreen(
 
         ActionRow(context, model, navController)
 
-        Button(onClick = { Toast.makeText(context, "Start", Toast.LENGTH_SHORT).show() }) {
+        Button(
+            enabled = currentSelection != null,
+            onClick = { navController.navigate(PLAY) }) {
             Text(text = context.getString(R.string.main_button_start), fontSize = 30.sp)
         }
 
diff --git a/app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/PlayScreen.kt b/app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/PlayScreen.kt
index c1da450..736aee3 100644
--- a/app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/PlayScreen.kt
+++ b/app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/PlayScreen.kt
@@ -1,10 +1,20 @@
 package fr.uparis.diamantkennel.memorisationapplication
 
+import android.widget.Toast
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.runtime.Composable
+import androidx.compose.ui.platform.LocalContext
+import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.NavController
+import fr.uparis.diamantkennel.memorisationapplication.ui.PlayViewModel
 
 @Composable
-fun PlayScreen(padding: PaddingValues, navController: NavController) {
+fun PlayScreen(
+    padding: PaddingValues,
+    navController: NavController,
+    model: PlayViewModel = viewModel()
+) {
+    val context = LocalContext.current
 
+    Toast.makeText(context, "Start", Toast.LENGTH_SHORT).show()
 }
diff --git a/app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/ui/PlayViewModel.kt b/app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/ui/PlayViewModel.kt
new file mode 100644
index 0000000..7abc73c
--- /dev/null
+++ b/app/src/main/java/fr/uparis/diamantkennel/memorisationapplication/ui/PlayViewModel.kt
@@ -0,0 +1,10 @@
+package fr.uparis.diamantkennel.memorisationapplication.ui
+
+import android.app.Application
+import androidx.lifecycle.AndroidViewModel
+import fr.uparis.diamantkennel.memorisationapplication.MemoApplication
+
+class PlayViewModel(application: Application) : AndroidViewModel(application) {
+    private val dao = (application as MemoApplication).database.memoDao()
+
+}