Items Invented by Philip M. Cohen

Game

1. Nemesis Chess. Some pawns are replaced by the Nemesis, which moves only toward the enemy king and cannot be captured by pawns or kings. Author: Ben M Reiniger. Inventor: Philip M. Cohen.
2. Null chess. Capture squares are destroyed when vacated. Author: Ben M Reiniger. Inventor: Philip M. Cohen.
3. Tutti-Frutti Chess. With bishop-knight, knight-rook, queen-knight and the usual pieces on an 8 by 8 board. (8x8, Cells: 64) Author: Hans L. Bodlaender. Inventor: Ralph Betza and Philip M. Cohen.

Java

1. Archimedes Chess. Capture by attacking an enemy unit with two of yours. Author: Ed Friedlander. Inventor: Philip M. Cohen.
2. Blood Brothers Chess. Pieces defend others of their kind regardless of location. Author: Ed Friedlander. Inventor: Philip M. Cohen and R. Wayne Schmittberger.
3. Nemesis Chess. Missing description Author: Ed Friedlander. Inventor: Philip M. Cohen.
4. Nine Riders Chess. Each piece is a rider. Author: Ed Friedlander. Inventor: Philip M. Cohen.
5. Null Chess. Squares on which captures have taken place can no longer be visited. Author: Ed Friedlander. Inventor: Philip M. Cohen.

Jocly

1. Tutti-Frutti Chess. Play this variant in which compounds replace some standard Chess pieces on Jocly. Author: Michel Gutierrez and Jean-Louis Cazaux. Inventor: Ralph Betza and Philip M. Cohen.

PBM

1. Tutti-Frutti Chess. With bishop-knight, knight-rook, queen-knight and the usual pieces on an 8 by 8 board. Author: Jeremy Gabriel Good. Inventor: Ralph Betza and Philip M. Cohen.

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