Atmalof is a board-game of skill and chance for 2 players, invented by Richard Forsyth in 1984 (under the name of Paralox). The rules were slightly amended in 1988 and the name Atmalof adopted in 2004.

Rules of the game can be found here:  [pdf here].
Esperantaj reguloj troviĝas tie ĉi. (Dankon al Malcolm Jones pro helpo kun la tradukado el la anglalingva teksto.)

Here is a board image (very home-made) showing a winning position for Yellow (versus Blue).