Prove you're a 10x engineer! 4242.pro is a game that challenges you to master Stripe Checkout by entering test credit card details as fast as possible. Race against the clock and see if you're fast enough!
4242.pro is a website that offers a fun game to test if you are a real 10x engineer or a noob. Simply fill out the fake payment form to test your skills and see if you can avoid the traps. Real geeks will be able to complete the game successfully.
4242.pro can be used by engineers, students, and anyone interested in testing their programming skills.