First I have to ask, do you know the online game Wordle? It is a simple yet quite entertaining game in which you have to find a 5-letter word in six lines. No hints other than colours showing which letters are placed at the correct spot (green), incorrect spot (yellow) and which do not occur in the sought word (grey). Only words can be entered, not random clusters of letters. Of course you see the letters in the cells but when you want to share your results, the boxes are empty not to spoil someone else’s game. There is a small keyboard depictured under the 5×6 matrix where the letters…