Tile 15

A 4*4 square with numbered squares in random order with one tile missing. Just arrange them in the right order using the empty space and you win this game. This game will definitely puzzle your brain for a bit.

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---

                        
    # This game is from the official documentation of freegames
    # https://pypi.org/project/freegames/

    # pip install freegames

    # Tap on Tile to Move

    # import modules
    from random import *
    import turtle as t
    from freegames import floor, vector

    # Set window title, color and icon
    t.title("Tile-15")
    root = t.Screen()._root
    root.iconbitmap("logo-ico.ico")
    t.bgcolor('#990099')

    tiles = {}
    neighbors = [
        vector(100, 0),
        vector(-100, 0),
        vector(0, 100),
        vector(0, -100),
    ]

    # Set window title, color and icon
    # Load tiles and scramble
    def load():

        count = 1

        for y in range(-200, 200, 100):
            for x in range(-200, 200, 100):
                mark = vector(x, y)
                tiles[mark] = count
                count += 1

        tiles[mark] = None

        for count in range(1000):
            neighbor = choice(neighbors)
            spot = mark + neighbor

            if spot in tiles:
                number = tiles[spot]
                tiles[spot] = None
                tiles[mark] = number
                mark = spot

    # Draw white square with black outline and number
    def square(mark, number):
        t.up()
        t.goto(mark.x, mark.y)
        t.down()

        t.color('#003325', '#ffb3e6')
        t.begin_fill()
        for count in range(4):
            t.forward(99)
            t.left(90)
        t.end_fill()

        if number is None:
            return
        elif number < 10:
            t.forward(20)

        t.write(number, font=('Arial', 45, 'normal'))

    # Swap tile and empty square
    def tap(x, y):
        x = floor(x, 100)
        y = floor(y, 100)
        mark = vector(x, y)

        for neighbor in neighbors:
            spot = mark + neighbor

            if spot in tiles and tiles[spot] is None:
                number = tiles[mark]
                tiles[spot] = number
                square(spot, number)
                tiles[mark] = None
                square(mark, None)

    # Draw all tiles
    def draw():
        for mark in tiles:
            square(mark, tiles[mark])
        t.update()

    t.setup(420, 420, 370, 0)
    t.hideturtle()
    t.tracer(False)
    load()
    draw()
    t.onscreenclick(tap)
    t.done()