on join:
    wait 1 second
    captcha(player)

function captcha(p: player):
    set {_gui} to a new chest inventory with 5 rows named "&6&l>> &aWeryfikacja Anti Bot &6&l<<"
    set slot (integers between 0 and 44) of {_gui} to red wool named "&c&lJESTEM ROBOTEM"
    set {_random} to random integer between 0 and 44
    set slot {_random} of {_gui} to green wool named "&a&lNIE JESTEM ROBOTEM"

on inventory close:
    if name of event-inventory is "&6&l>> &aWeryfikacja Anti Bot &6&l<<":
        captcha(player)

on inventory click:
    event-inventory is not player's inventory
    if name of event-inventory is "&6&l>> &aWeryfikacja Anti Bot &6&l<<":
        if clicked slot isn't {_random}:
            kick player due to "&6&l>> &cNAJPRAWDOPODOBNIEJ JESTEŚ ROBOTEM! &6&l<<"