Happy Fourth of July to our American colleagues. A new essay "Krypto" <http://www.jsoftware.com/jwiki/Essays/Krypto> has been added. It's an amusing puzzle which you may want to try your hand at before looking at the solution.
Krypto <http://en.wikipedia.org/wiki/Krypto_(game)> is a mathematical card game. The Krypto deck has 56 cards: 3 each of numbers 1-6, 4 each of the numbers 7-10, 2 each of 11-17, 1 each of 18-25. Six cards are dealt: an objective card and five other cards. A player must use all five of the latter cards' numbers exactly once, using any combination of arithmetic operations (+, -, *, and %) to form the objective card's number. The first player to come up with a correct formula is the winner. The more strict "International Rules" specify the use of positive integers only; fractional and negative intermediate results are not permitted. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
