| "SHIFT" is a very difficult puzzle, unsolvable at first glance. Not invented by myself, but found on the web where is was called "the most difficult puzzle in the world". To solve the puzzle using mouse or keyboard, I wrote this Delphi-7 program which can also search for solutions in case the user gets tired trying. The puzzle consists of a board having 4 x 5 fields. Blocks of size 1x1, 2x1, 1x2,or 2x2 are shifted until the red 2x2 block occupies the fields at the bottom center. The position of the other blue blocks is not important.
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| author: | David E. Dirkse |
| required: | Win98, Win2K, WinXP, Vista, Win7 |
| size: | 505 k |
| added: | 26-Jan-2011 |
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