- Kira Chess/Kira Shogi. "Kira" and "L" pieces which is not known by your opponent. (8x8, Cells: 64) By (zzo38) A. Black.
- Klondike Chess. With 52 potential pieces, build a foundation on the enemy throne. (5x5, Cells: 25) By Daniel Robert MacDuff.
- Secret Bombs Chess. Secret bombs with cards telling you where they are. (8x8, Cells: 64) By (zzo38) A. Black.
- Unbland Chess. Diagonal moves are usually (but not always) prohibited. (8x8, Cells: 64) By (zzo38) A. Black.
Total items listed: 6