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Pandora (OpenPandora) Open source hardware handheld game console. [51] Combination game console and subnotebook; appearance of a laptop shrunk down to the size of a Nintendo 3DS. [52] Plays digital games via internet download. [52] Features a touchscreen, full QWERTY keyboard, and TV-out.
An impossible puzzle is a puzzle that cannot be resolved, either due to lack of sufficient information, or any number of logical impossibilities. 15 Puzzle – Slide fifteen numbered tiles into numerical order. Impossible for half of the starting positions. Five room puzzle – Cross each wall of a diagram exactly once with a continuous line.
Some of the puzzles are well known classics, some are variations of known puzzles making them more algorithmic, and some are new. They include: Puzzles involving chessboards, including the eight queens puzzle, knight's tours, and the mutilated chessboard problem; Balance puzzles; River crossing puzzles; The Tower of Hanoi
Artifact Puzzles is a manufacturer of wooden jigsaw puzzles operating out of Port Townsend, Washington (previously in Fremont, California). The business was founded in 2009 [2] by University of Washington electrical engineering professor Maya Gupta, and was originally based in Seattle , Washington . [3]