Ralph Betza

Ralph Betza (born 1945) is a FIDE Master and inventor of chess variants such as Chess with different armies, Avalanche chess, and Way of the Knight.

Invented chess variants
  • Multiplayer Chess (date unknown)
  • High-Low Chess (1968)
  • Strange Relay Chess (1970s)
  • Coordinate Chess (or Co-Chess) (1973)
  • Conversion Chess (1973)
  • Co-Relay Chess (1973)
  • Double Conversion Chess (1973)
  • Heterocoalescence Chess (1973) by Philip Cohen, based on an idea by Betza
  • Inverter Chess (or Switch Chess) (1973)
  • Metamorphosis (c. 1973)
  • Pinwheel Chess (1973)
  • Reversion Conversion Chess (1973)
  • Transportation Chess (or Transchess) (1973)
  • Watergate Chess (1973)
  • Weak! (1973)
  • Biflux Chess (1974) a variant of Co-Chess
  • Brownian Motion Chess (1974)
  • Cassandra Chess (1974)
  • Orbital Chess (1974)
  • Overloader/Restorer Chess (O/R Chess) (1974)
  • Put-back Transchess (1974)
  • Almost Chess (1977)
  • Ambition Chess (1977)
  • Autorifle Chess (1977) after Bill Rawlings
  • Avalanche Chess (1977)
  • Blizzard Chess (1977)
  • Buzzard Chess (1977)
  • List Chess (1977)
  • Plague Chess (1977) after S. Walker; variants are Biological Warfare Chess, and Immunity
  • Twinkle Chess (1977)
  • Very Scottish Chess (1977)
  • Ghostrider Chess (1978)
  • Incognito Chess (1978)
  • Liars' Chess (1978)
  • Tutti-Frutti Chess (1978) with Philip Cohen
  • Chess with different armies (or Betza's Chess, or Equal Armies) (1979)
  • Suction Chess (1979)
  • One-Shot Chess (1980)
  • Swarm Chess (1980)
  • Koopa Chess (1990)
  • Way Of The Knight (WOTN) (1992)
  • Chess on a Really Big Board (or Four Board Chess, or Chess on Four Boards) (1996)
  • Earthquake Chess (1996)
  • Narrow Chess (1996)
  • Taxi Chess (1996)
  • Trapdoor Chess (1996)
  • Game of Nemoroth, The (2002)

References
  • 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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