Rules About The Board

0-9

1. 123456 Chess. Missing description Author: Nick Wolff. Inventor: (zzo38) A. Black.

A

1. Active King Chess. Each turn, one must move one's king in addition to moving other pieces. Author: Jeremy Gabriel Good. Inventor: Köksal Karakus.
2. Actualized Potential Chess. Pieces exist where they are but also all along their routes or points of attack. By Jeremy Gabriel Good.
3. Actuated Rotating Center Chess. Center rotates, you choose when and how. Author: Ed Friedlander. Inventor: A. E. Farebrother and W. H. Rawlings.
4. Amalgamated Chess. Missing description By James Gryphon.
5. Amalgamated Chess. Incorporates some aspects of historical variants, but uses only usual equipment. (8x8, Cells: 64) By James Gryphon.
6. Andy's Chess. Missing description By andrewthepawn.
7. Archoniclastic Chess. Pieces are augmented on squares of their color. (8x8, Cells: 64) By Ralph Betza.
8. Arimaa. Board game playable with standard chess set, hard for computers. (8x8, Cells: 64) Author: Hans L. Bodlaender. Inventor: Omar Syed and Aamir Syed.
9. Arimaa. Uses same equipment as Chess, but designed to be difficult for computers. By Omar Syed and Aamir Syed.
10. Atlantis Chess. Instead of moving, a player may remove an square from the edges of the board. (8x8, Cells: 64) Author: Hans L. Bodlaender. Inventor: Gerben Dirksen.
11. Atlantis Chess . Instead of moving, a player may remove an square from the edges of the board. Author: Doug Chatham. Inventor: Gerben Dirksen.
12. Atlantis Chess. You may sink an edge square instead of moving a unit. Author: Ed Friedlander. Inventor: Gerben Dirksen.

B

1. Beginners Chess. Missing description By Stephane Burkhart.
2. Beginners Chess. Missing description (8x8, Cells: 64) By Stephane Burkhart.
3. Berolina Grid Chess. Popular with NOST. Author: Ed Friedlander.
4. Berolina Grid Chess. Combination of Berolina Chess and Grid Chess. (8x8, Cells: 64) Author: Hans L. Bodlaender.
5. Beyond Chess (tm). Commercial variant with dynamic board. (8x8, Cells: 64) Author: David Howe. Inventor: David Crockett.
6. Billiards Chess. Bishops and queens bounce off the edges. Author: Ed Friedlander.
7. Billiards progressive chess. Progressive chess variant where queens and bishops bounce against the edges of the board. (8x8, Cells: 64) Author: Fabio Forzoni.
8. Bishop Knight Morph Factor. Missing description (8x8, Cells: 64) By Gary K. Gifford.
9. Black Hole Chess. Pieces moved to the center four squares of the board fall into your hand. Author: Ed Friedlander. Inventor: Karl Scherer.
10. Blue Chess or Deep Blue Vs. Kasparov Chess. Tribute to a famous game with three shades of blue and different options for each player to achieve a win. Author: Jeremy Gabriel Good.
11. Blue Chip Chess. Missing description By Neal Turner.
12. Blue Chip Chess. A chip, moved each turn by the players, denotes a square where pieces may not go to. (8x8, Cells: 64) By Neal Turner.
13. BordahBee, A Two-Board Game (two 8x8 boards). Missing description (2x(8x8), Cells: 128) By Gary K. Gifford.
14. Breakthrough Chess. Pieces must "break through" a zone of neutral blocks. (8x8, Cells: 64) By Adrian Alvarez de la Campa.
15. Building Chess. Variant that starts with a board of 25 squares, but each player adds a square after their move. (8x8, Cells: 64) By Sergey Sirotkin.
16. Bull's eye. Upgrading of the possibilities to move within the Bull's eye to make the game more dynamic. (8x8, Cells: 64) By Gerd P. Degens.

C

1. Center of Attention. FIDE Chess but with an additional winning condition: Move your king unchecked into a center square. Author: Jeremy Gabriel Good. Inventor: Johan Richter.
2. Centerless Chess. No center pawns or squares. Author: Ed Friedlander. Inventor: Tony Paletta.
3. Central Chess. Move twice per turn, once in center and once on edge. Author: Ed Friedlander.
4. Central Rotational Chess. Plays like chess except the center (4 squares) rotate after each move and kings must be captured (instead of mated). (8x8, Cells: 64) By Gary K. Gifford.
5. CGNP chess. A game with Knightly Pawns. By Abdul-Rahman Sibahi.
6. Chameleon Chess Redux. Missing description (8x8, Cells: 64) By Adam Goss.
7. Chasm Chess. Berolina Pawns, reflecting Bishop and Queen, and a chasm in the board! Author: Tony Quintanilla. Inventor: Danielle Allen.
8. Chasm Chess. Berolina Pawns, reflecting Bishop and Queen, and a chasm in the board! (8x8, Cells: 64) Author: Danielle Allen Inventor: Danielle Allen.
9. Cheshire Cat Chess . When a unit leaves a square, the square vanishes. Author: Marek14 . Inventor: Vernon Rylands Parton.
10. Cheshire Cat Chess. When a unit leaves a square, the square vanishes. Author: Ed Friedlander. Inventor: Vernon Rylands Parton.
11. Cheshire Cat Chess. Squares are disappearing. (8x8, Cells: 64) Author: Hans L. Bodlaender. Inventor: Vernon Rylands Parton.
12. Chess in the Round. 1970's commercial variant that allows turning corners with the Rook and Queen. (8x8, Cells: 64) Author: Barry Yoner.
13. Chess Is Wild. Pieces acquire special moves in the inner 16 squares. (8x8, Cells: 64) By Peter E. Leyva.
14. Chess Latrunculi duo milia et septum. Chess with dragon horse and dragon king movements for bishops and rooks. (8x8, Cells: 64) By Gary K. Gifford.
15. Chess on the Dot. Play this adaptation of Chess to a spherical board on Game Courier. Author: Fergus Duniho. Inventor: Joshua Chou.
16. Chess on the Rainbows. Players must retain a piece on all 6 colors of a 6-color board.
17. Chess on the Rainbows. Six different colors light up the board. You have to keep a piece on each color throughout... Author: Jeremy Gabriel Good.
18. Chess960.com. Talk about Chess960 with other members. By Calvin Jack Pomerantz.
19. Chessembly. Open Board Setup, Free Placement Chess. (8x8, Cells: 64) By JT K.
20. ChessVariants.zrf. 17 variants in 1 file. By (zzo38) A. Black.
21. Chutes and Ladders Chess. Game played on two boards with two sets with user placed and removed chutes and ladders connecting the boards. (8x8, Cells: 64) By Ralph Betza.
22. Cleopatra Chess. Dan Troyka game, similar to Benedict Chess but with only one color-changing piece. Cleopatra "seduces" any piece she sees. Author: Jeremy Gabriel Good. Inventor: Dan Troyka.
23. Closing Time. During certain turns, you must move pieces out of a central area of the board (`the pub'). (8x8, Cells: 64) By Ralph Betza.
24. Coalition. Missing description Author: Ed Friedlander. Inventor: Tony Paletta.
25. Cold War Chess. A long and very challanging game against all odds. By Kutasi Márton.
26. The Consuls. Chess with two Kings and Pawns that can capture as Bishop, Knight, and Rook on the enemy side. By Albert Lee.
27. Contemporary Random Chess. Missing description (8x8, Cells: 64) By Jose Carrillo.
28. Contemporary Random Chess. Missing description By Jose Carrillo.
29. Continental Chess. Continental Chess is Chess Variations with many types of pieces such as stepper, leaper, hopper and rider. (8x8, Cells: 64) By Siwakorn Songrag.
30. Contramatic Chess. This king can walk right into check! The goal for this king is to get checkmated. Author: Jeremy Gabriel Good. Inventor: Vernon Rylands Parton.
31. Crowd Chess 1: Safety in Numbers. More pieces can occupy the same square - you can only form or move to a crowd by a non-capturing move. (8x8, Cells: 64) By Ralph Betza.
32. Crowd Chess 2: All Go Together. More pieces can occupy the same square and share the same fate. (8x8, Cells: 64) By Ralph Betza.
33. Crush Chess. After every 10 moves, the perimeter disappears. Author: Ed Friedlander.
34. Crushed Chess. After every 10 turns, the perimeter disappears. Author: Ben M Reiniger.
35. Cursed Chess. Squares where a piece is taken become forbidden for the capturing player. (8x8, Cells: 64) By Jeremy Dunn.
36. Cylinder Chess. First and eighth files connect. Author: Ed Friedlander.
37. Cylinder Chess. Play Cylindrical Chess on Jocly. Author: Michel Gutierrez and Jérôme Choain.
38. A Cylinder chess puzzle - 1. Missing description Author: Hans L. Bodlaender. Inventor: A. Piccinini.
39. A Cylinder chess puzzle - 2. Missing description Author: Hans L. Bodlaender. Inventor: A. W. Mongredien.
40. Cylindrical Chess. Sides of the board are supposed to be connected. (8x8, Cells: 64) Author: Greg Strong.
41. Cylindrical Chess. Sides of the board are supposed to be connected. Author: Antoine Fourrière and Fergus Duniho.
42. Czech Chess. Drop pawns by checking the King. (8x8, Cells: 64) By Adrian Alvarez de la Campa.

D

1. Defensive Chess. White king is not royal, and Red units (except king) cannot go beyond the midline. If White has not won by 50 moves, Red wins. Author: Ed Friedlander.
2. Diagonal Chess . Board turned 45 degrees. Author: Marek14 . Inventor: David Howe.
3. Diagonal Chess. Board turned 45 degrees. (8x8, Cells: 64) By David Howe.
4. Dice Chess. Die roll determines which type of piece is moved. By Ronald Drinning.
5. Displaced Grid Chess. A Grid Chess variant that allows kings to visit corners, etc. Author: Ed Friedlander. Inventor: Doug Grant.
6. Don't Cross Midnight. Chess on a rotating planet; units may not cross the International. Author: Ed Friedlander. Inventor: Claude Chaunier.
7. Doppelganger Chess. Pieces and their doppelgangers are connected for capture and promotion! (8x8, Cells: 64) By Gary K. Gifford.

E

1. E-Chess. The chess pieces appear on the board during the game. By Вадря Покштя.
2. Each Piece Once Chess. Each turn, move as many as all your pieces, but only once! By Jeremy Gabriel Good.
3. Eclipse Chess. Units in the eclipse zone cannot move or give check. Author: Ed Friedlander. Inventor: João Pedro Neto.
4. Edge Chess. Pieces can stand on the edges of squares. Inventor: Mitch Martin.
5. Edge Chess . Pieces can stand on the edges of squares. Author: Robert Price. Inventor: Mitch Martin.
6. En Passant Chess. All pieces have the en passant option. Koksal Karakus version. Author: Jeremy Gabriel Good. Inventor: Köksal Karakus.
7. Extended squares Chess. Some areas of adjacent squares of the board can be seen as one cell. (8x8, Cells: 64) By Robert J. Bell.

F

1. Fabulous Flying Kittens. Toroidal board using three warp lines with 8 corners tied together. (8x8, Cells: 64) By Jeremy Gabriel Good.
2. Fabulous Flying Kittens. Toroidally interwoven board using same number of squares and pieces as FIDE Chess. By Jeremy Gabriel Good.
3. Fifo Chess. Multiple Occupier game where rule is that first one there is first one to be captured and to leave. "First In, First Out". Author: Jeremy Gabriel Good. Inventor: Ralph Betza.
4. Fifo Chess. Each square acts as a First-In-First-Out queue. (8x8, Cells: 64) By Ralph Betza.
5. Floßschach. Part of the board is a lake, where rafts can transport pieces. (8x8, Cells: 64) Author: Jörg Knappen.
6. Fluid Chess. Pieces can move into (or through or out of and into again) friendly pieces ("into" up to compounds). Author: Jeremy Gabriel Good. Inventor: Joe Joyce.
7. Folding Magnetic Chess. fold between D&E files, play on both sides. Author: Deep Thought.
8. Fortress. Die roll determines which type of piece is moved. By Ronald Drinning.

G

1. Gladiator Chess. Missing description (8x8, Cells: 64) By David Fisher.
2. Greener Chess. The grass is always greener on the other side of the fence -- and your pieces are stronger there too. (8x8, Cells: 64) By Ralph Betza.
3. Grid Chess. Always move to a different 4 by 4 square part of the board. Author: Ed Friedlander. Inventor: Walter Stead.
4. Grid Chess. Always move to a different 2 by 2 square part of the board. (8x8, Cells: 64) Author: Hans L. Bodlaender. Inventor: Walter Stead.
5. Grid Chess . Always move to a different 4 by 4 square part of the board. Author: Robert Price. Inventor: Walter Stead.

H

1. Hobgoblin Chess. Inchworm crowd-forming magnetic mutating lunar-hallway exploding-Pawn Chess; an extreme game. (8x8, Cells: 64) Author: Jack Masters. Inventor: Simon Vertigo.
2. Home Columns Chess. A piece cannot be captured when in its 'home' column. Author: Peter Aronson. Inventor: Ted Clancy.
3. Hop Chess. The same as FIDE chess plus a special piece called the hopper. (8x8, Cells: 64) By João Pedro Neto.
4. House of Mirrors Chess. Mirrors and reflective pieces add interesting twists to strategy by making pieces appear in 2 or 3 places at the same time. (8x8, Cells: 87) By Gary K. Gifford.
5. Hydrant Chess . Special rules govern how pieces move between four quadrants of the board. Author: Marek14 .

I

1. Ibu Ibu Chess. Ibu Ibu Chess in which the king's entourage protects it from Ubi-Ubis. By Jeremy Gabriel Good.
2. Ibu Ibu Chess. Introduces the concept of a King's entourage, making King powerful and protected. (8x8, Cells: 64) Author: Jeremy Gabriel Good. Inventor: Jeremy Gabriel Good.
3. Ice Age Chess. Every 20th move, the board freezes and ice cubes appear on almost every empty square. (8x8, Cells: 64) By Köksal Karakus.
4. Ice Age Chess. Blocks of ice cover the board at intervals. Author: Ed Friedlander. Inventor: Köksal Karakus.
5. Indistinguishable Chess. All pawns and pieces appear the same in color and size, for both sides. The board has no 'dark' squares. By Gary K. Gifford.
6. Indistinguishable Chess. Player pieces indistinguishable from each other. Board squares are indistinguishable. (8x8, Cells: 64) By Gary K. Gifford.
7. Island Chess. Some connections between squares are missing. By Karl Scherer.

J

1. Joyful Chess. One special square enhances a piece's powers, the other diminishes them. Author: Ed Friedlander. Inventor: Karl Schulz.

K

1. Knavish Shatranj. Shatranj with Knaves and Debtors. (8x8, Cells: 64) By Jörg Knappen.
2. Koksal Karakus' En Passant Chess -. All pieces have the en passant option. Koksal Karakus version. Author: Jeremy Gabriel Good. Inventor: Köksal Karakus.
3. Kriegspiel Zillions v 2.0 file . Zillions file to play Kriegspiel against the computer. The human player's pieces are not hidden. By Andreas Kaufmann.

L

1. Levitating Kings. Kings can levitate orthagonally or diagonally over a line of friendly pieces. (8x8, Cells: 64) By Gary K. Gifford.
2. Lumberjack. Pieces move according to their current column. Author: Ed Friedlander. Inventor: Bruce Zimov.
3. Lumberjack. Pieces move depending on the column they are on. (8x8, Cells: 64) Author: Hans L. Bodlaender. Inventor: Bruce Zimov.

M

1. Mad Queen Shogi. Missing description (8x8, Cells: 64) By Larry L. Smith.
2. Magician's Chess. Pieces switch board sides with each move. (8x8, Cells: 64) By John Smith.
3. Magicpawns Chess. Any piece can move to friendly pawn and change place with it. Pawns thus become more dynamic and pieces less constrained. By M Winther.
4. Makruk. Play the traditional Chess variant of Thailand on Game Courier. Author: Jose Carrillo.
5. Makruk Library. Missing description Author: Jose Carrillo.
6. Masking Chess. Mask and move pieces so they are invisible to the opponent. (8x8, Cells: 64) By James Lummel.
7. Maxim chess. Variant, invented by my little brother. (8x8, Cells: 64) By Daniil Frolov.
8. mettamorphachess. Missing description (8x8, Cells: 64) By Eric S. Clayton.
9. Michell's Proposal. Pawns may underpromote on next-to-last rank. Author: Ed Friedlander. Inventor: R. P. Michell.
10. Miller's Spherical Chess. Play this early adaptation of Chess to a spherical board on Game Courier. Author: Fergus Duniho. Inventor: Don Miller.
11. Minefield Chess. Two of your squares have hidden mines that can destroy an enemy unit. Author: Ed Friedlander.
12. Minesweeper chess. Missing description (8x8, Cells: 64) By Daniil Frolov.
13. Minotaur Chess. Variant with board turned 45 degrees. (8x8, Cells: 64) By Frank M. Truelove.
14. Mockery Chess. Missing description (8x8, Cells: 64) By Stephane Burkhart.
15. More Shifted Square Chess. Shifted Square Chess needs more than one page to explore its possibilities. (8x8, Cells: 64) By Ralph Betza.
16. Move as square says. Game with identical piece, movement depends on location. (8x8, Cells: 64) By Daniil Frolov.
17. MRC64. Missing description (8x8, Cells: 64) By Jose Carrillo.
18. MRC64. Modern Random Chess 64. By Jose Carrillo.
19. Multi-King Chess. Missing description (8x8, Cells: 64) By Roberto Lavieri.
20. Multiple Occupancy Miscellany. Various chess variants with multiple pieces per square. (8x8, Cells: 64) By Ralph Betza.
21. Multiple of 10 Checkmate. Missing description (8x8, Cells: 64) By Calvin Jack Pomerantz.
22. Multiple of 10 Checkmate. Variant where you can only checkmate or be checkmated on move 10, 20, 30, ect.. By Calvin Jack Pomerantz.

N

1. Nadvorney's Spherical Chess. Play Nadnorney's adaptation of Chess to a spherical board on Game Courier. Author: Fergus Duniho. Inventor: Leo Nadvorney.
2. Near Chess. This is a variant of Skirmish Chess designed to be friendlier to newbies. (8x8, Cells: 64) By Rich Hutnik.
3. No Entry Chess. Bar the opponent's access to one square after each of your moves. Author: Ed Friedlander. Inventor: David B. Pritchard.
4. No-Retreating Chess. A varient where you can't retreat until you get to the last rank. (8x8, Cells: 64) By Calvin Jack Pomerantz.
5. Noble WingS Chess. Missing description (8x8, Cells: 64) By Mark Simpson.
6. Null Chess. Squares on which captures have taken place can no longer be visited. Author: Ed Friedlander. Inventor: Philip M. Cohen.
7. Null chess. Capture squares are destroyed when vacated. Author: Ben M Reiniger. Inventor: Philip M. Cohen.

O

1. ObstructionChess. A new chess variant designed to challenge old strategies and improve your chess play with logical and organic obstructions. (8x8, Cells: 64) By martin rinab.
2. Off Board Chess Pieces. Die roll determines which type of piece is moved. By Ronald Drinning.
3. One Way Chess . Missing description By Adrian Alvarez de la Campa.
4. Orda Chess. Asymmetric variant where one army has pieces that move like knights but capture differently. By Daniel Lee.

P

1. PieceEater Chess. Yet another game with an indestructible randomly-wandering neutral piece. (8x8, Cells: 64) By Peter Aronson.
2. PieceEater Chess . Yet another game with an indestructible randomly-wandering neutral piece. By Peter Aronson.
3. Pied Color Chess. Oh no! All the colors on the board have been scrambled -- however will the pieces move? (8x8, Cells: 64) By Ralph Betza.
4. Pillow Chess . Chess on a Pillow-shaped board. Author: Abdul-Rahman Sibahi. Inventor: Grant Cairns.
5. Plaid Chess. Progressive Grid chess. Author: Ed Friedlander. Inventor: W. H. Rawlings.
6. Platform Chess . Pieces move normally or ride on 2x2 platforms that move themselves. By Robert Price.
7. Platform Chess. Pieces move normally or ride on 2x2 platforms that move themselves. (8x8, Cells: 64) By Robert Price.
8. Pocket Mutation Chess . Take one of your pieces off the board, maybe change it, keep it in reserve, and drop it on the board later. By Michael Nelson.
9. Pocket Mutation Chess. Take one of your pieces off the board, maybe change it, keep it in reserve, and drop it on the board later. (8x8, Cells: 64) (Recognized!) By Michael Nelson.
10. Pocket Mutation Chess. Take one of your pieces off the board, maybe change it, keep it in reserve, and drop it on the board later. Author: Tony Quintanilla and Fergus Duniho. Inventor: Michael Nelson.
11. Poker Chess. Squares contain cards, and players win by forming poker hands with the cards on the squares occupied by their pieces. (8x8, Cells: 64) By Ralph Betza.
12. Portal Chess. Two boards and pieces can teleport from one board to another. Also playable with two half-boards. (8x8, Cells: 64) By David Howe.
13. Pot-Hole Chess. Game where pot-holes open up on the board at random times. (8x8, Cells: 64) Author: Peter Spicer and Michael Chamberlain. Inventor: Peter Spicer.
14. Prime.Ministers Contemporary Random Chess. Missing description (8x8, Cells: 64) By Jose Carrillo.
15. The Princess and The Warrior . Pieces' moves are limited by their current rank except for the two new pieces. By Adrian Alvarez de la Campa.
16. Prisoners. Die roll determines which type of piece is moved. By Ronald Drinning.

Q

1. Quarter Chess. Missing description (8x8, Cells: 64) By Patrik Hedman.

R

1. R-Chess . Captured pieces are held in reserve and then dropped. By Marcello Netto.
2. Race Chess. On a circular board where white and black pawns move in the same direction. (8x8, Cells: 64) By Ralph Betza.
3. Raft Chess. Part of the board is a lake, where rafts can transport pieces. (8x8, Cells: 64) Author: Jörg Knappen.
4. Random Wormhole Chess. Introduces "wormholes" and "toroidal" movement in a fun and manageable way. (8x8, Cells: 64) By Adrian Alvarez de la Campa.
5. Rank and File Chess. Move from Most Crowded Row. (8x8, Cells: 64) By George William Duke.
6. Realm chess. Board is divided into realms and multiple pieces can move into and out of a realm in one turn. (8x8, Cells: 64) By Edward Jackman.
7. Recapturable Chess. Captured pieces belong to other player and then removed permanently. (8x8, Cells: 64) By (zzo38) A. Black.
8. Relativistic Chess. Squares attacked by the opponent are considered not to exist. Author: Robert Price. Inventor: Kevin Whyte.
9. Relativistic Chess. Squares attacked by the opponent are considered not to exist. (8x8, Cells: 64) Author: Hans L. Bodlaender. Inventor: Kevin Whyte.
10. Rental Chess. You must pay rent for the squares where your pieces are: centre squares are more expensive. (8x8, Cells: 64) By Ralph Betza.
11. Rotating Cylinder Chess. Positions of pieces rotate one square to the right after each move. (8x8, Cells: 64) By John Smith.
12. Rotation Chess. Every 10th move, the board is turned around. (8x8, Cells: 64) Author: Hans L. Bodlaender.
13. Rotation Chess. Every ten moves, switch sides with your opponent. How might you prepare for the demise of the pieces you are playing? Author: Jeremy Gabriel Good and Adrian Alvarez de la Campa.
14. Rotation Chess. Every ten turns, you switch and play the other player's units. Author: Ed Friedlander.
15. Royal Magician Chess. Missing description Author: Ed Friedlander. Inventor: Gary K. Gifford.
16. Royal Magician's Chess. King and special magician piece earn the right to drop pieces when they venture out to the fourth, fifth and sixth ranks! Author: Jeremy Gabriel Good. Inventor: Gary K. Gifford.
17. Royal Magician's Chess. Missing description (8x8, Cells: 64) By Gary K. Gifford.
18. Royal Pawn. Missing description Author: Ed Friedlander. Inventor: Jeremy Gabriel Good.
19. Royal Pawn Chess. Same as FIDE Chess, except the pawns in front of the kings are royal, meaning the object is to checkmate them and not the king. By Jeremy Gabriel Good.
20. Rubble Chess. Pieces must clear out unoccupied squares before they can move through them. (8x8, Cells: 64) By Adam Norberg.
21. Rubble Chess. Pieces must clear out unoccupied squares before they can move through them. Author: Ed Friedlander. Inventor: Adam Norberg.
22. Rubble Chess . Pieces must clear out unoccupied squares before they can move through them. Author: Peter Aronson. Inventor: Adam Norberg.

S

1. Safe Passage. Move pieces to opposite side without putting pieces in danger of capture. By Karen Robinson.
2. Secret Agent Chess. Each player chooses one opposing minor piece to be a secret agent. (8x8, Cells: 64) By Ralph Betza.
3. Share Squares. AKA Two's Company; Three's a Crowd. By JT K.
4. Shatar, Old 1 Hia. Old Shatar with one Hia. (8x8, Cells: 64) By Gary K. Gifford.
5. Shifted Square Chess. One square is removed from the normal playing area and one square is added at the edge of the normal playing area. (8x8, Cells: 64) By Ralph Betza.
6. Shogun Chess. Pieces promote and can be dropped, similar to Shogi. By Daniel Lee.
7. Shrink Chess. The board is shrinking. (8x8, Cells: 64) Author: Pepijn van Erp and Hans L. Bodlaender.
8. Spacious Torus Chess. Toroidal 8 x 8 using "spacious" FIDE pieces which require the next square beyond to be empty to either move or capture. Author: Fergus Duniho. Inventor: Jianying Ji.
9. Spacious Torus Chess. Chess on a toroidal board, using Ralph Betza's spacious pieces. (8x8, Cells: 64) By Jianying Ji.
10. Spacious Torus Chess . Chess on a toroidal board, using Ralph Betza's spacious pieces. By Jianying Ji.
11. Spell Chess. A limited supply of freeze and jump spells allow you to hinder the opponent or get extra moves. (8x8, Cells: 64) Author: H. G. Muller.
12. Spherical chess. Sides of the board are considered to be connected to form a sphere. (8x8, Cells: 64) Author: Alessandro Castelli and Fergus Duniho. Inventor: Don Miller and Leo Nadvorney.
13. Spherical Corner Chess. Game on a truly topologically spherical board with corner‐camp arrays. By Bn Em.
14. Strate-Go Chess. Missing description (8x8, Cells: 64) By John Kipling Lewis.
15. Suicide Void Chess. Variant of Suicide Chess. A piece creating a void in the board is moved after each capture. (8x8, Cells: 64) By Robert Atkinson.
16. Super-Chess. www.oteroideas.com. By Superuser .

T

1. Tao's Chess. Chess variant where as you move across a line, the pieces reverse roles. By Travis Geyer.
2. Terrain Chess. Die roll determines which type of piece is moved. By Ronald Drinning.
3. Terrain Chess. Roll dice to create impassable squares. (8x8, Cells: 64) By Ronald Drinning.
4. Threat Chess, Attackers Chess and Victims Chess. Missing description By Jeremy Gabriel Good.
5. Tiled Squares Chess. Play this game, where you drop tiles to create the board as you play! By Tony Quintanilla.
6. Tiled Squares Chess . Drop tiles to create the board as you play. By Tony Quintanilla.
7. Tiled Squares Chess. Drop tiles to create the board as you play. (8x8, Cells: 64) By Tony Quintanilla.
8. Tingles, Bumps, and Punches. A set of variants on cylindrical and toroidal boards featuring a peace bump between the top and bottom of the board. (8x8, Cells: 64) By Ralph Betza.
9. Topologies Chess . Chess on a Cylindrical board, on a Toroidal Board, on a Mobius Strip and on a Klein Bottle. Author: Andrew Juell. Inventor: Alberto Monteiro.
10. Torus Chess on a Standard Board. Torus Chess on a standard board with a unique setup. (8x8, Cells: 64) By Karl Fischer.
11. Torus Standard. Uses the ordinary FIDE pieces on 8 x 8 board but configured in such a way as to permit the board to be toroidal! Author: Jeremy Gabriel Good. Inventor: Karl Fischer.
12. Trapdoor Chess. Pieces fall through the board if they stand still too long. (8x8, Cells: 64) By Ralph Betza.
13. Trek71 Chess . All pieces on the lefthand-side are shown as black, but do not change owners, and vise-versa. By Ken Franklin.
14. Tron Chess. Every square passed by the queen creates a wall that hinders movement. (8x8, Cells: 64) By Adam Norberg.
15. Twinkie Danger Chess. Game on two initially unliked boards where each turn you add or drop a link. (8x8, Cells: 64) By Ralph Betza.

V

1. Vagabond Chess. Missing description (8x8, Cells: 64) By Patrik Hedman.
2. Vavulin Creative Chess. Before the start of the game, every player, creates up with one rule for both players, which operates the whole game. By Dmitrii Vavulin.

W

1. Windows Chess. Windows Chess is played with usual chess equipment on a board inspired by an arch-window. (8x8, Cells: 64) By David Cannon.
2. Wizard of Oz Octal Chess. Based on Baum book and 1939 film. (8x8, Cells: 64) By George William Duke.
3. Wormhole Chess. When a piece leaves a square, it `folds' together. (8x8, Cells: 64) By Fergus Duniho.

Y

1. Yapsan's Spherical Chess. Play this early adaptation of Chess to a spherical board on Game Courier. Author: Fergus Duniho. Inventor: Peter Yapsan.

Z

1. Zero Relay Chess. Pieces can occcupy the same square and then relay their powers to each other. (8x8, Cells: 64) By Ralph Betza.
2. Zone X. Chess with a special central Zone, a new piece, and new moves. (8x8, Cells: 64) By Roberto Lavieri.
3. Zone X . Chess with a special central Zone, a new piece, and new moves. By Roberto Lavieri.
4. Zone X. Chess with a special central Zone, a new piece, and new moves. Author: Roberto Lavieri and Tony Quintanilla. Inventor: Roberto Lavieri.

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