Guess with lies

Computer picks a random number. You need to guess it. To each of your guesses computer will reply: either "Smaller" or "Bigger" depending on whether the picked number is smaller or bigger than yours. But it wouldn't be interesting this way, so sometimes computer lies and flips the answer.

Right column contains the game history. You can return to any of your previously started games later (it is preserved across browser session), but it is currently only saved when you win a round. 

I made the original version in Python in just 37 seconds (here is the code) and then ported to it HTML and javascript. I made all the UI for the web version, but the core gameplay is exactly the same as in the original version made under a minute.

Watch this video to see how I made it:

You might also find interesting a video about how I made quite polished maze game in Unity in under 9 minutes: