diff --git a/lib/board.dart b/lib/board.dart
index 87a10a0..1846bb2 100644
--- a/lib/board.dart
+++ b/lib/board.dart
@@ -3,7 +3,7 @@ import 'package:flutterfiar/coordinate.dart';
 import 'match_page.dart';
 
 class Board {
-  List<List<Player>> _boxes = List.generate(
+  List<List<Color>> _boxes = List.generate(
     7,
     (i) => List.generate(
       7,
@@ -13,29 +13,28 @@ class Board {
 
   Board();
 
-  Board.from(List<List<Player>> boxes) {
+  Board.from(List<List<Color>> boxes) {
     _boxes = boxes;
   }
 
-  Player getBox(Coordinate coordinate) =>
-      _boxes[coordinate.col][coordinate.row];
+  Color getBox(Coordinate coordinate) => _boxes[coordinate.col][coordinate.row];
 
   int getColumnTarget(int col) => _boxes[col].lastIndexOf(null);
 
-  void setBox(Coordinate coordinate, Player player) =>
+  void setBox(Coordinate coordinate, Color player) =>
       _boxes[coordinate.col][coordinate.row] = player;
 
   void reset() {
     _boxes.forEach((r) => r.forEach((p) => p = null));
   }
 
-  bool checkWinner(Coordinate coordinate, Player player) {
+  bool checkWinner(Coordinate coordinate, Color player) {
     return checkHorizontally(coordinate, player) ||
         checkVertically(coordinate, player) ||
         checkDiagonally(coordinate, player);
   }
 
-  bool checkHorizontally(Coordinate coordinate, Player player) {
+  bool checkHorizontally(Coordinate coordinate, Color player) {
     var r = 0;
     for (;
         coordinate.col + r < 7 &&
@@ -59,7 +58,7 @@ class Board {
     return false;
   }
 
-  bool checkDiagonally(Coordinate coordinate, Player player) {
+  bool checkDiagonally(Coordinate coordinate, Color player) {
     var ur = 0;
     for (;
         coordinate.col + ur < 7 &&
@@ -121,7 +120,7 @@ class Board {
     return false;
   }
 
-  bool checkVertically(Coordinate coordinate, Player player) {
+  bool checkVertically(Coordinate coordinate, Color player) {
     var u = 0;
     for (;
         coordinate.row + u < 7 &&
diff --git a/lib/cpu.dart b/lib/cpu.dart
index 24a81ee..cd5af2c 100644
--- a/lib/cpu.dart
+++ b/lib/cpu.dart
@@ -5,20 +5,20 @@ import 'coordinate.dart';
 import 'match_page.dart';
 
 abstract class Cpu {
-  final Player player;
+  final Color color;
   final Random _random = Random(DateTime.now().millisecond);
 
-  Cpu(this.player);
+  Cpu(this.color);
 
-  Player get otherPlayer => player == Player.RED ? Player.YELLOW : Player.RED;
+  Color get otherPlayer => color == Color.RED ? Color.YELLOW : Color.RED;
 
   Future<int> chooseCol(Board board);
 }
 
 class DumbCpu extends Cpu {
-  DumbCpu(Player player) : super(player);
+  DumbCpu(Color player) : super(player);
 
-  Player get otherPlayer => player == Player.RED ? Player.YELLOW : Player.RED;
+  Color get otherPlayer => color == Color.RED ? Color.YELLOW : Color.RED;
 
   @override
   Future<int> chooseCol(Board board) async {
@@ -33,7 +33,7 @@ class DumbCpu extends Cpu {
 }
 
 class HarderCpu extends Cpu {
-  HarderCpu(Player player) : super(player);
+  HarderCpu(Color player) : super(player);
 
   @override
   Future<int> chooseCol(Board board) async {
@@ -55,8 +55,8 @@ class HarderCpu extends Cpu {
 
       final coordinate = Coordinate(i, target);
 
-      boardCopy.setBox(coordinate, player);
-      if (boardCopy.checkWinner(coordinate, player)) {
+      boardCopy.setBox(coordinate, color);
+      if (boardCopy.checkWinner(coordinate, color)) {
         scores[i] += deepness / (step + 1);
         continue;
       }
@@ -101,7 +101,7 @@ class HarderCpu extends Cpu {
 }
 
 class HardestCpu extends HarderCpu {
-  HardestCpu(Player player) : super(player);
+  HardestCpu(Color player) : super(player);
 
   @override
   Future<int> chooseCol(Board board) async {
diff --git a/lib/cpu_level_page.dart b/lib/cpu_level_page.dart
index e2aa69a..491cd5b 100644
--- a/lib/cpu_level_page.dart
+++ b/lib/cpu_level_page.dart
@@ -31,8 +31,8 @@ class CpuLevelPage extends StatelessWidget {
                   '/match',
                   arguments: {
                     'mode': Mode.PVC,
-                    'cpu': DumbCpu(
-                        Random().nextBool() ? Player.RED : Player.YELLOW),
+                    'cpu':
+                        DumbCpu(Random().nextBool() ? Color.RED : Color.YELLOW),
                   },
                 );
               },
@@ -53,7 +53,7 @@ class CpuLevelPage extends StatelessWidget {
                   arguments: {
                     'mode': Mode.PVC,
                     'cpu': HarderCpu(
-                        Random().nextBool() ? Player.RED : Player.YELLOW),
+                        Random().nextBool() ? Color.RED : Color.YELLOW),
                   },
                 );
               },
@@ -74,7 +74,7 @@ class CpuLevelPage extends StatelessWidget {
                   arguments: {
                     'mode': Mode.PVC,
                     'cpu': HardestCpu(
-                        Random().nextBool() ? Player.RED : Player.YELLOW),
+                        Random().nextBool() ? Color.RED : Color.YELLOW),
                   },
                 );
               },
diff --git a/lib/game_chip.dart b/lib/game_chip.dart
index 99cede6..1c737c3 100644
--- a/lib/game_chip.dart
+++ b/lib/game_chip.dart
@@ -10,7 +10,7 @@ class GameChip extends StatelessWidget {
   }) : super(key: key);
 
   final Animation<double> translation;
-  final Player color;
+  final Color color;
 
   @override
   Widget build(BuildContext context) {
@@ -25,7 +25,7 @@ class GameChip extends StatelessWidget {
         width: 40,
         child: Material(
           shape: CircleBorder(),
-          color: color == Player.RED ? Colors.red : Colors.yellow,
+          color: color == Color.RED ? Colors.red : Colors.yellow,
         ),
       ),
     );
diff --git a/lib/home_page.dart b/lib/home_page.dart
index 7c49bf2..c0e05f1 100644
--- a/lib/home_page.dart
+++ b/lib/home_page.dart
@@ -65,7 +65,7 @@ class HomePage extends StatelessWidget {
               ),
               onPressed: () {
                 final harderCpu =
-                    HarderCpu(Random().nextBool() ? Player.RED : Player.YELLOW);
+                    HarderCpu(Random().nextBool() ? Color.RED : Color.YELLOW);
                 Navigator.pushNamed(
                   context,
                   '/match',
diff --git a/lib/match_page.dart b/lib/match_page.dart
index 66b90d3..e961f58 100644
--- a/lib/match_page.dart
+++ b/lib/match_page.dart
@@ -8,7 +8,7 @@ import 'cpu.dart';
 import 'game_chip.dart';
 import 'hole_painter.dart';
 
-enum Player {
+enum Color {
   YELLOW,
   RED,
 }
@@ -37,8 +37,8 @@ class MatchPage extends StatefulWidget {
 
 class _MatchPageState extends State<MatchPage> with TickerProviderStateMixin {
   final board = Board();
-  Player turn;
-  Player winner;
+  Color turn;
+  Color winner;
 
   List<List<Animation<double>>> translations = List.generate(
     7,
@@ -81,7 +81,7 @@ class _MatchPageState extends State<MatchPage> with TickerProviderStateMixin {
                 padding: const EdgeInsets.all(32.0),
                 child: winner != null
                     ? Text(
-                        '${winner == Player.RED ? 'RED' : 'YELLOW'} WINS',
+                        '${winner == Color.RED ? 'RED' : 'YELLOW'} WINS',
                         textAlign: TextAlign.center,
                         style: Theme.of(context)
                             .textTheme
@@ -91,7 +91,7 @@ class _MatchPageState extends State<MatchPage> with TickerProviderStateMixin {
                     : Column(
                         children: <Widget>[
                           Text(
-                            '${turn == Player.RED ? 'RED' : 'YELLOW'} SPEAKS',
+                            '${turn == Color.RED ? 'RED' : 'YELLOW'} SPEAKS',
                             textAlign: TextAlign.center,
                             style: Theme.of(context)
                                 .textTheme
@@ -117,19 +117,19 @@ class _MatchPageState extends State<MatchPage> with TickerProviderStateMixin {
     String name;
 
     if (widget.mode == Mode.PVC) {
-      if (turn == widget.cpu.player) {
+      if (turn == widget.cpu.color) {
         name = 'CPU - ${widget.cpu.toString()}';
       } else {
         name = 'USER';
       }
     } else if (widget.mode == Mode.PVP) {
-      if (turn == Player.RED) {
+      if (turn == Color.RED) {
         name = 'PLAYER1';
       } else {
         name = 'PLAYER2';
       }
     } else {
-      if (turn == widget.cpu.player) {
+      if (turn == widget.cpu.color) {
         name = 'CPU1 - ${widget.cpu.toString()}';
       } else {
         name = 'CPU2 - ${widget.cpu2.toString()}';
@@ -146,11 +146,11 @@ class _MatchPageState extends State<MatchPage> with TickerProviderStateMixin {
   void initState() {
     super.initState();
     turn = widget.cpu?.otherPlayer ??
-        (Random().nextBool() ? Player.RED : Player.YELLOW);
-    if (widget.mode == Mode.PVC && turn == widget.cpu.player) {
+        (Random().nextBool() ? Color.RED : Color.YELLOW);
+    if (widget.mode == Mode.PVC && turn == widget.cpu.color) {
       cpuMove(widget.cpu);
     } else if (widget.mode == Mode.DEMO) {
-      if (turn == widget.cpu.player) {
+      if (turn == widget.cpu.color) {
         cpuMove(widget.cpu);
       } else {
         cpuMove(widget.cpu2);
@@ -225,7 +225,7 @@ class _MatchPageState extends State<MatchPage> with TickerProviderStateMixin {
     putChip(col);
 
     if (winner == null && widget.mode == Mode.DEMO) {
-      if (turn == widget.cpu.player) {
+      if (turn == widget.cpu.color) {
         cpuMove(widget.cpu);
       } else {
         cpuMove(widget.cpu2);
@@ -253,7 +253,7 @@ class _MatchPageState extends State<MatchPage> with TickerProviderStateMixin {
     if (mounted) {
       setState(() {
         board.setBox(Coordinate(col, target), turn);
-        turn = turn == Player.RED ? Player.YELLOW : Player.RED;
+        turn = turn == Color.RED ? Color.YELLOW : Color.RED;
       });
     }
 
@@ -277,7 +277,7 @@ class _MatchPageState extends State<MatchPage> with TickerProviderStateMixin {
     }
   }
 
-  void showWinnerDialog(BuildContext context, Player player) {
+  void showWinnerDialog(BuildContext context, Color player) {
     setState(() {
       winner = player;
     });
diff --git a/lib/player.dart b/lib/player.dart
new file mode 100644
index 0000000..cb684eb
--- /dev/null
+++ b/lib/player.dart
@@ -0,0 +1,7 @@
+import 'package:flutterfiar/match_page.dart';
+
+abstract class Player {
+  final Color player;
+
+  Player(this.player);
+}