## Description
_Twix_ is an implementation of the board moving puzzle known as _Khun Phaen
Escapes_ , usually manufactured with wood pieces. On a 4×5 board there are ten
stones. Four small 1×1 pieces, four 1×2 pieces, one 2×1 piece and a single 2×2
piece. The goal is to bring the large square to the opposite side, which seems
to be impossible first, as there are only two free fields to move and
rearrange the pieces. Indeed this puzzle is not trivial, the common solution
takes 103 steps, the currently best known strategy 79 steps.
In the game _Twix_ you have to move the stone from the left to the right by
selecting the piece to move and then move it with the cursor keys. The
implementation is quite special, as the game code itself is not executed as an
Atari ST program, but as a program for the Hewlett Packard 48SX pocket
calculator which is then emulated inside the ST game. This is visualized by a
48SX on the screen and all the action is only taking place in the small
monochrome display of this picture.
Twix