A number will be shown for 10 seconds. If you don't need all ten seconds just hold space. After that, you will need to type in the number. It starts off easy: 1 digit. Every round a new number is shown containing one more digit. Enjoy!
Music: https://www.youtube.com/watch?v=3ssL8vx7Xhg mp3 Version Inspired by www.humanbenchmark.com will be curated by @Legolover2018