Philip M. Cohen is the inventor of several chess variants.
He authored the column "Olla Podrida" in the periodical Nost-algia published by the (now defunct) correspondence game club NOST.
[a][1] The column regularly featured chess variants, many experimental, since 1972.
[2] This variant by Cohen uses the same board and pieces as standard chess, but a captured piece can make its presence felt on the board as a zombie, and can "reincarnate" another zombie back into the game by capturing it.
There is no en passant capture in Reincarnation Chess.