Top of the Line Outdoor Gear at Discount Prices! We provide a variety of outdoor gear from camping climbing fishing hunting and archery equipment to satisfy all your needs. !
A large collection of cryptarithms and alphametics, including cryptarithms from the journal Sphinx, a Primer on Cryptarithmetic, books, and links to other collections of alphametics on the Web.
New version of the classic puzzle using row/column/quadrant permutations to display symmetries of graphic designs. Has link to a site on the underlying mathematics (Diamond Theory).
A method of disproving the Theorem of Pythagoras is presented. The author is adamant that this is intended only as a puzzle to find the mistake in the arguments, and not as a serious proposal.
Top of the Line Outdoor Gear at Discount Prices! We provide a variety of outdoor gear from camping climbing fishing hunting and archery equipment to satisfy all your needs. !