diff --git a/src/tic_tac_toe/main.py b/src/tic_tac_toe/main.py
index d2b09d1..c62e2b3 100644
--- a/src/tic_tac_toe/main.py
+++ b/src/tic_tac_toe/main.py
@@ -1,4 +1,4 @@
-from src.tic_tac_toe.utils import GameState, ask_for_name, turn
+from src.tic_tac_toe.utils import GameState, State, ask_for_name, print_state, turn
 
 def main():
     print("=== Tic Tac Toe ===")
@@ -7,11 +7,14 @@ def main():
     name2 = ask_for_name("player #2")
     print(f"Starting game for {name1} and {name2}")
 
-    state = None #todo: initialize state
+    state = State.new(name1, name2)
     p1_turn = True
     while state.state() == GameState.UNFINISHED:
+        print_state(state)
         turn(state, p1_turn)
         p1_turn = not p1_turn
 
+    print(f"Game has finished with state: {state.state()}")
+
 if __name__ == "__main__":
     main()
diff --git a/src/tic_tac_toe/utils.py b/src/tic_tac_toe/utils.py
index 5a3e8e0..8d376a8 100644
--- a/src/tic_tac_toe/utils.py
+++ b/src/tic_tac_toe/utils.py
@@ -5,7 +5,7 @@
 def ask_for_name(player_tag) -> str:
     return input(f"Enter name of {player_tag}:")
 
-class GameState(enum.EnumType):
+class GameState(enum.Enum):
     PLAYER_1 = 1
     PLAYER_2 = 2
     DRAW = 3
@@ -16,13 +16,46 @@ def __init__(self, board, p1_name, p2_name):
         self.board = board
         self.p1_name = p1_name
         self.p2_name = p2_name
+    @staticmethod
+    def new(p1_name, p2_name):
+        return State([[" ", " ", " "], [" ", " ", " "], [" ", " ", " "]], p1_name, p2_name)
     def state(self) -> GameState:
         # todo
         return GameState.UNFINISHED
+    def are_coordinates_valid(self, coordinates: typing.Tuple[int, int]):
+        return 0 < coordinates[0] < 3 and 0 < coordinates[1] < 3
+    def at_coordinates(self, coordinates: typing.Tuple[int, int]):
+        return self.board[coordinates[0]][coordinates[1]]
 
 def print_state(state: State):
     # todo
     pass
+def ask_for_row():
+    alphabet = ["1", "2", "3"]
+    result = None
+    while len(result := input("Specify column")) != 1 or result not in alphabet:
+        print("Need one character (1, 2 or 3)")
+    return ord(result) - 65
+def ask_for_column():
+    alphabet = ["A", "B", "C"]
+    result = None
+    while len(result := input("Specify column")) != 1 or result not in alphabet:
+        print("Need one character (A, B or C)")
+    return ord(result) - 65
+def ask_for_coordinates():
+    row = ask_for_row()
+    col = ask_for_column()
+    return (row, col)
 def turn(state: State, p1_turn: bool):
-    # todo
-    pass
+    coordinates = ask_for_coordinates()
+    while (invalid := not state.are_coordinates_valid(coordinates)) or\
+            (tile := state.at_coordinates(coordinates)) != ' ':
+        if invalid:
+            print("Invalid coordinates (out of board), asking again...")
+        else:
+            print(f"Tile has been taken ('{tile}' sign has been placed)")
+        coordinates = ask_for_coordinates()
+    tile = "X" if p1_turn else "O"
+    state.board[coordinates[0]][coordinates[1]] = tile
+
+