diff --git a/android/gradle.properties b/android/gradle.properties
index 53f7ea286da5b592c797927723a89c3f02454457..6d853d49db1c1a034a827cd42ea4637e53910189 100644
--- a/android/gradle.properties
+++ b/android/gradle.properties
@@ -1,5 +1,5 @@
 org.gradle.jvmargs=-Xmx1536M
 android.useAndroidX=true
 android.enableJetifier=true
-app.versionName=1.0.18
-app.versionCode=19
+app.versionName=1.0.19
+app.versionCode=20
diff --git a/fastlane/metadata/android/en-US/changelogs/20.txt b/fastlane/metadata/android/en-US/changelogs/20.txt
new file mode 100644
index 0000000000000000000000000000000000000000..52f2179d505f14dcc88966038849680298d1df24
--- /dev/null
+++ b/fastlane/metadata/android/en-US/changelogs/20.txt
@@ -0,0 +1 @@
+Avoid print calls in production code.
diff --git a/fastlane/metadata/android/fr-FR/changelogs/20.txt b/fastlane/metadata/android/fr-FR/changelogs/20.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8537dac9f8ac580dac7eee02b1a1c99a901fe7d2
--- /dev/null
+++ b/fastlane/metadata/android/fr-FR/changelogs/20.txt
@@ -0,0 +1 @@
+Supprime les appels à print dans le code de production.
diff --git a/lib/board.dart b/lib/board.dart
index 01afbc3a2bf7c20b892c2a71162d05d05947b6e4..e7498f80fee7c7455f0b20e64d8d2f1bcc089053 100644
--- a/lib/board.dart
+++ b/lib/board.dart
@@ -1,6 +1,6 @@
 import 'package:puissance4/coordinate.dart';
 
-import 'match_page.dart';
+import 'package:puissance4/match_page.dart';
 
 class Board {
   List<List<Color?>> _boxes = List.generate(
diff --git a/lib/cpu.dart b/lib/cpu.dart
index ff842ed17d89a412f7501e70599f33696768909f..1f7ed4bf249747530b435220eb60d56f68b562d5 100644
--- a/lib/cpu.dart
+++ b/lib/cpu.dart
@@ -1,8 +1,8 @@
 import 'dart:math';
 
-import 'board.dart';
-import 'coordinate.dart';
-import 'match_page.dart';
+import 'package:puissance4/board.dart';
+import 'package:puissance4/coordinate.dart';
+import 'package:puissance4/match_page.dart';
 
 abstract class Cpu {
   final Color color;
diff --git a/lib/cpu_level_page.dart b/lib/cpu_level_page.dart
index d12af0c477041bb27c629a8ad55a5c60d4cb5741..21074f4934db9024b041a9d8dd44f7558be3c273 100644
--- a/lib/cpu_level_page.dart
+++ b/lib/cpu_level_page.dart
@@ -1,9 +1,9 @@
 import 'dart:math';
 
 import 'package:flutter/material.dart';
-import 'package:puissance4/cpu.dart';
 
-import 'match_page.dart';
+import 'package:puissance4/cpu.dart';
+import 'package:puissance4/match_page.dart';
 
 class CpuLevelPage extends StatelessWidget {
   const CpuLevelPage({super.key});
diff --git a/lib/game_chip.dart b/lib/game_chip.dart
index 57effbab7f9709cab50ff648bddac35cc60a5091..22d94167f72cfd2aa493765d985df3cab5525678 100644
--- a/lib/game_chip.dart
+++ b/lib/game_chip.dart
@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 
-import 'match_page.dart';
+import 'package:puissance4/match_page.dart';
 
 class GameChip extends StatelessWidget {
   const GameChip({
diff --git a/lib/home_page.dart b/lib/home_page.dart
index 6613982ce1a213521a066c634e98d3688d4b3bfe..ab7d3253c02d22d9abdc6bb3fa8e5db5714a187f 100644
--- a/lib/home_page.dart
+++ b/lib/home_page.dart
@@ -1,9 +1,9 @@
 import 'dart:math';
 
 import 'package:flutter/material.dart';
-import 'package:puissance4/cpu.dart';
 
-import 'match_page.dart';
+import 'package:puissance4/cpu.dart';
+import 'package:puissance4/match_page.dart';
 
 class HomePage extends StatelessWidget {
   const HomePage({super.key});
diff --git a/lib/main.dart b/lib/main.dart
index e2785b8e832528a9cfc3a5ac90033fc6317ed19d..8a2676ab28835640daa254bec4580c814cb69636 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+
 import 'package:puissance4/cpu_level_page.dart';
 import 'package:puissance4/home_page.dart';
 import 'package:puissance4/match_page.dart';
diff --git a/lib/match_page.dart b/lib/match_page.dart
index 66b498ba8948718bd38e02789e468c55fdd9aa5a..b9a98bd838c379e7becc3ac925b821e5838c7abe 100644
--- a/lib/match_page.dart
+++ b/lib/match_page.dart
@@ -1,12 +1,12 @@
 import 'dart:math';
 
 import 'package:flutter/material.dart';
-import 'package:puissance4/coordinate.dart';
 
-import 'board.dart';
-import 'cpu.dart';
-import 'game_chip.dart';
-import 'hole_painter.dart';
+import 'package:puissance4/board.dart';
+import 'package:puissance4/coordinate.dart';
+import 'package:puissance4/cpu.dart';
+import 'package:puissance4/game_chip.dart';
+import 'package:puissance4/hole_painter.dart';
 
 enum Color {
   yellow,
diff --git a/lib/utils/tools.dart b/lib/utils/tools.dart
new file mode 100644
index 0000000000000000000000000000000000000000..fd48b2b009b80b22248d6e7f08a63e96c4065bd7
--- /dev/null
+++ b/lib/utils/tools.dart
@@ -0,0 +1,7 @@
+import 'package:flutter/foundation.dart';
+
+void printlog(String message) {
+  if (!kReleaseMode) {
+    debugPrint(message);
+  }
+}
diff --git a/pubspec.yaml b/pubspec.yaml
index 4f0a45d2be8aa36a441f22adaf2c248bff7b2d1b..f29024e4eeb9c34349cdcc9876501c9aa4d632cb 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,7 +1,7 @@
 name: puissance4
 description: puissance4
 publish_to: 'none'
-version: 1.0.18+19
+version: 1.0.19+20
 
 environment:
   sdk: '^3.0.0'