diff --git a/.gitignore b/.gitignore
index eeaadb8..ebb63a3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,8 @@
 # .idea files
 .idea*
 
+# decision trees
+**.joblib
 
 # Byte-compiled / optimized / DLL files
 __pycache__/
diff --git a/game.py b/game.py
index e732a45..7295a75 100644
--- a/game.py
+++ b/game.py
@@ -44,6 +44,7 @@ class Game:
         self.input_box_row = InputBox((0, 0), (0, 0))
         self.input_box_column = InputBox((0, 0), (0, 0))
         self.button_auto = Button((0, 0), (0, 0))
+        self.button_genetic_algorithm = Button((0, 0), (0, 0))
         self.button_random = Button((0, 0), (0, 0))
         self.button_ok = Button((0, 0), (0, 0))
 
@@ -217,7 +218,7 @@ class Game:
         gui_width = const.V_SIDE_MENU_WIDTH
         ib_height, bt_height = const.V_INPUT_BOX_HEIGHT, const.V_BUTTON_HEIGHT
         gui_x = const.V_TILE_AREA_WIDTH + 2 * const.V_SCREEN_PADDING + const.V_NUMBER_PADDING
-        gui_y = const.SCREEN.get_height() / 2 - (2 * ib_height + 2 * bt_height + 30) / 2
+        gui_y = const.SCREEN.get_height() / 2 - (2 * ib_height + 3 * bt_height + 50) / 2
 
         # creating in game gui components
         self.input_box_row = InputBox(
@@ -257,9 +258,18 @@ class Game:
             outline_additional_pixel=True
         )
 
-        self.button_random = Button(
+        self.button_genetic_algorithm = Button(
             position=(gui_x, gui_y + 2 * ib_height + bt_height + 30),
             dimensions=(gui_width, bt_height),
+            text="genetic",
+            box_color=(100, 200, 100),
+            outline_color=(80, 180, 80),
+            outline_additional_pixel=True
+        )
+
+        self.button_random = Button(
+            position=(gui_x, gui_y + 2 * ib_height + 2 * bt_height + 40),
+            dimensions=(gui_width, bt_height),
             text="random",
             box_color=(100, 200, 100),
             outline_color=(80, 180, 80),
@@ -267,7 +277,7 @@ class Game:
         )
 
         self.button_ok = Button(
-            position=(gui_x, gui_y + 2 * ib_height + 2 * bt_height + 40),
+            position=(gui_x, gui_y + 2 * ib_height + 3 * bt_height + 50),
             dimensions=(gui_width, bt_height),
             text="ok",
             box_color=(100, 200, 100),
@@ -275,7 +285,14 @@ class Game:
             outline_additional_pixel=True
         )
 
-        gui_list = [self.input_box_row, self.input_box_column, self.button_auto, self.button_random, self.button_ok]
+        gui_list = [
+            self.input_box_row,
+            self.input_box_column,
+            self.button_auto,
+            self.button_genetic_algorithm,
+            self.button_random,
+            self.button_ok
+        ]
         self.in_game_gui_components_manager = UiComponentsManager(gui_list)
 
         # creating game over gui components