Copyright (c) 2001 L. Lynn Smith

This game is played on an 4x4 square board with the following setup:

MOVE - A stone slides (orthogonal or diagonal) through empty cells, stopping only when encountering another piece or an edge of the board. It then changes into its own color, all enemy stones orthogonally adjacent to it.
GOAL - A players looses if he is stalemated (he has no more stones or cannot move any remaining stone. 

An example

Black moves b2 to cell [1] and wins in 2 turns. White is forced to move d3-c4, then d2-d3, c4-a4, d4-b4 and wins!

There is a ZRF to play Orthokon with Zillions.