public void endMove(int column, int row) {
        if (checkWin(playingField, column, row)) {
            VierGewinntAi.mainGUI.showWinMessage();
            gameEnd = true;
            return;
        }

        if (checkFull()) {
            VierGewinntAi.mainGUI.showFullMessage();
            gameEnd = true;
            return;
        }

        if(gameEnd){
            return;
        }
        if (playerTurn == 1) {
            playerTurn = 2;
        } else {
            playerTurn = 1;
        }
        VierGewinntAi.mainGUI.showPlayerTurnMessage();

        if (!playerHuman[playerTurn - 1]) {
            startAi();
        } else {
            lock = false;
        }
    }