Items Invented by Hafsteinn Kjartansson
- Builder chess. Introducing the Builder. (8x8, Cells: 64) By Hafsteinn Kjartansson.
- Evochess. Evolutionary chess. (12x12, Cells: 144) By Hafsteinn Kjartansson.
- Óskar's 3dchess. Missing description (5x(8x8), Cells: 320) By Hafsteinn Kjartansson.
- Óskar's 3dchess version 2. Missing description (5x(8x8), Cells: 320) By Hafsteinn Kjartansson.
- Shogchess. Missing description (9x11, Cells: 99) By Hafsteinn Kjartansson.
- XSChess. Xiangqi plus shogi plus chess. (9x14, Cells: 126) By Hafsteinn Kjartansson.