Challenging Crossnumber Puzzles and Crossnumbers Quarterly IP: 18.104.22.168 Posted on September 11, 2016 at 01:35:42 PM by Alastair Cuthbertson
Zag and I are in the final stages of producing a book entitled Challenging Crossnumber Puzzles. Also it is intended to have a quarterly newsletter entitled Crossnumbers Quarterly which will contain some puzzles. The launch issue in October is free and contains 10 new puzzles. Please go to the link below for more information. If you've already expressed an interest there is no need to do so again as we have your details.