Tri-Alphametics Volume One for sale
I am pleased to announce we have published our first book! Full of challenging 'tri-alphametic' logic puzzles, there is also a hidden 'meta puzzle'. Not for the faint-hearted, there is a cash prize for solving this puzzle.
Grab your copy today, only $20, with part of the proceeds going to support maths education in NZ. Makes a great Christmas present!