diff --git a/src/main/c/TicTacToe.h b/src/main/c/TicTacToe.h
index 1e04a7d..645d5c3 100644
--- a/src/main/c/TicTacToe.h
+++ b/src/main/c/TicTacToe.h
@@ -1,7 +1,11 @@
 #ifndef TICTACTOE_H
 #define TICTACTOE_H
 
+void initializeBoard(char board[3][3]);
+void displayBoard(char board[3][3]);
 int Winner(char board[3][3]);
+void makeMove(char board[3][3], int row, int col);
+int TicTacToe_ausfuehren();
 
 #endif