Games Invented by João Pedro Neto on Zillions of Games
Abstract Chess 
. Pieces are really by stacks of stones of different heights, with their move depending on the number of stones. Author: Peter Aronson. Inventor: João Pedro Neto.
- Anti-Gravity Chess . Pieces that move repel other pieces. By João Pedro Neto.
- The Central Squares . 3d chess variant where all three levels share their central squares. By João Pedro Neto.
- Delegating Chess . 84 square variant in which pieces delegate moving powers. Author: Peter Aronson. Inventor: João Pedro Neto.
- Gravity Chess . Pieces that moved attract pieces like magnets. By João Pedro Neto.
- Knightliest Black Hole . Knighted pieces on a constantly diminishing board. By João Pedro Neto.
- Life, the Universe and Everything . 42-square double-move variant with unusual pieces, inspired by Douglas Adams' fiction. Author: Peter Aronson. Inventor: João Pedro Neto.
- Magnetic Chess . Pieces that moved attract and repel pieces like magnets. Author: João Pedro Neto and Fergus Duniho. Inventor: João Pedro Neto and Claude Chaunier.
- Promotions & Demotions . Every turn, the piece that has moved promotes or demotes to another piece. By João Pedro Neto.
- Slide Chess . Variant on 44 squares with moving cages. Author: Antoine Fourrière. Inventor: João Pedro Neto.
- Swap Chess. A move can consist of a series of pieces swapping places. By João Pedro Neto.
- Unreal Tournament Chess . Chess variants with a different objective, inspired by the multiplayer computer game Unreal Tournament. Author: Robert Price. Inventor: João Pedro Neto.
- The Weak Square of the Jumping King . Kings start jumping around, dropping the other pieces on a board with 38 squares. By João Pedro Neto.