Copyright (c) 2003 Markus Salo
This game is played on the following 3x4 square board:
Each player has 5 stones off-board.
White drops the last stone at cell  and wins! Black must capture c3:a3:a1, then b2-b3!, c1:c3:a3 and wins, his only stone is on the red cell.
Some words from the author: I've been trying to create a game having as simple as possible rule set and board but still having a lot depth and strategy. This is as simple as it gets. Still the game is very challenging and the computer opponent is hard to beat. There is a ZRF to play Vilbergen with Zillions. There is a simplified (?) version of this game for 1-D boards, which Markus called Motala Ström (check a similar classic game Toads and Frogs). Other variants are Skarphagen and Lahti.
Markus also made a hexagonal variant, called Hageby, using the following board:
Hageby includes a first move restriction, the first drop must not be on the red cell. Another game played on this board is Holmen.