This is a tool for helping with codewords. Codewords are puzzles where a crossword-like grid has numbers in each cell representing a particular character. The idea is to work out which number maps to which letter of the alphabet.
Use the drop down to select the number of letters. Then enter either a single
character or the number in the range 1 to 27 of the searched for letter in each
For example, '1', '2', 'w', '2' to search for a four-letter word where the
third letter is w, the first character is different to the other letters and
the same letter is repeated in the 2nd and 4th character positions.
Number of letters
Word list from https://github.com/dwyl/english-words.
The C source for the code to do the search is available