Philip M. Cohen

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.^{[lower-alpha 1]}^[1] The column regularly featured chess variants, many experimental, since 1972.^[2]

Reincarnation Chess

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.^[3]

Move rules

When a capture (or series of captures) takes place on a square, a zombie is created when the capturing piece leaves the square. The zombie assumes the same piece type as the (last) piece captured, and the color of the capturing player.

Zombies cannot capture normal pieces or move through them.
Normal pieces cannot capture zombies or move through them.
Zombies can capture or move through other zombies.
Reincarnation: When a zombie (or series of zombies) is captured on a square, a normal piece is created when the capturing zombie leaves the square. The normal piece assumes the same piece type as the (last) zombie captured, and the color of the capturing player.
Zombie pawns promote to zombie pieces and retain their piece type if reincarnated.
Pieces reborn on their starting squares regain their usual privileges (the pawn's initial two-square advance; the rook's eligibility to castle).

There is no en passant capture in Reincarnation Chess.

Variants invented

Null Chess (1960s)
Zombie Chess (1964)
Reincarnation Chess (1960s), a development of Zombie Chess
Ricochet Chess (1968)
Free Rotation Chess (1969), a variant of Actuated Revolving Centre (ARC) Chess by A. E. Farebrother and W. H. Rawlings (1937)
Slippery Centre Chess (c. 1970)
Crossings Chess (1973), an adaptation to chess of Robert Abbott's game Crossings
Heterocoalescence Chess (1973), a variant of Coordinate Chess (Co-Chess) from an idea by Ralph Betza
Nemesis Chess (1973)
Surge Chess (1973), a variant of Crossings Chess
Parton Chess (1974), in honor of V. R. Parton
Merger Chess (1975)
Cohen's Error Chess (1977)
Tutti-Frutti Chess (1978), with Ralph Betza
Archimedes Chess (1979), after Scott Marley
Mixture Chess (1979)
Ninerider Chess (1979)
Nuisance Chess (1979), a variant of Coordinate Chess (Co-Chess) by Ralph Betza (1973)
Blood-Brother Chess (1980), with R. Wayne Schmittberger
Fast-Track Chess (1986)

References

Notes

↑ NOST (kNnights Of the Square Table), formed in 1960 by Bob Lauzon and Jim France, held an annual convention and enjoyed several hundred active members.^[1]

Citations

Bibliography

Pritchard, D. B. (1994). The Encyclopedia of Chess Variants. Games & Puzzles Publications. ISBN 0-9524142-0-1.
Pritchard, D. B. (2007). Beasley, John, ed. The Classified Encyclopedia of Chess Variants. John Beasley. ISBN 978-0-9555168-0-1.

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