Two like moving pieces of different colors stand on the same line. In different phases, Black moves along the line away from the opponent’s piece, which in turn moves the same distance in the opposite direction. The maneuver repeats at least once in another phase, in which the distance increases by 1+1 squares. Compare with Loshinsky magnet theme, where one thematic piece follows the piece of opposite color, and with Anti-Loshinsky theme where two pieces are moving toward to each other.
See also: Magnet.