EXTREME SUDOKU - US Magazine - Each journal contains tough challenger puzzles; many of the 175 puzzles feature the added X-factor - a twist on this extremely popular puzzle - where all nine boxes in the highlighted diagonals must contain unique numbers. Size: 15 x 22 centimeters. Scope: 114 pages. Perfect for Sudoku solvers looking for something different. more »
SCIENCE AAAS - US Magazine - December 15, 2009. Breakthrough of the Year: Ardipithecus ramidus. Newsstand: $10.00. Like new: Untouched. Mint Condition. Plastic wrapped. more »