The Hexadecimal Puzzle by Binary Arts--Free US Shipping!

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Item Location: United States

$125.00

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Description

From Jaap's Puzzle Page (with due credit and appreciation, https://www.jaapsch.net/puzzles/hexadec.htm):

"The Hexadecimal Puzzle is the very first puzzle made by Binary Arts (now called Think Fun). Unlike all their later puzzles, this one is made of wood. It is closely related to their second puzzle, which was Spinout.

"It has a stationary base inside of which is a sliding carriage. On this sliding carriage are 8 switching bars. Each bar has two states, tilted up (0) or down (1). At the start they are all tilted up (00000000), and the aim is to tilt them all down (11111111) so that the carriage can be slid out of the base. The switching bars can only be tilted at one place in the middle of the base, where there is a gate that is opened by pushing in a block piece at the front. However, the block piece has a series of four keys sticking out, so the gate can only be opened if the state of the switching bars to the left of the gate match the pattern of the four blocking keys (and any bars further to the left must be in the down state)."

The puzzle is in near-mint condition* as seen in the photos in its original box and includes all the original package inserts. In addtion to being a challenging puzzle, it is a tour de force in woodworking. According to https://www.puzzlemad.co.uk/2013/07/, this puzzle was produced only in 1986, only about 10% of the original run of 7500 units are believed still to exist. Here's one of them!

*There is one clean repair to the moving latch at the rear of the puzzle: the wooden part was broken along the grain, and the loose piece has been glued neatly and securely back into position. The repair does not affect the operation of the puzzle, and it requires close inspection even to locate.

Free shipping by USPS to a U.S. address. Sorry, due to regrettable U.S. customs policies I will ship only to a U.S. address unless specific inquiry and arrangements for payment of additional fees and shipping costs outside the U.S. (pending outcome of the auction) are made at least 24 hours prior to the end of the auction.

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