[gsoto]

Very cool. And way more challenging.

A way to make this a bit easier would be allowing a nonexistent word once per game or something like that.

> the red tile indicates the number of correct characters in the correct position

I suggest using another color for that, as red is associated with error most of the time. Why not using the green/yellow for the numbers too?

[prvnsmpth]

Well, I chose red and white because those were the colors used to score in Mastermind :) But yeah, I suppose green/amber are better, and consistent with the color coding of the characters in the grid.

> allowing a nonexistent word once per game

That's a good suggestion, I guess I can introduce easy/hard modes and implement this in the easy mode. Thanks!