Query Results for
SELECT * FROM `Item` LEFT JOIN `IndexEntry` USING (ItemID) WHERE `Type` = 'PBM' AND `IsHidden` = 0 AND `Item`.`IsDeleted` = 0 AND `Language` = 'English' AND (`InventorID` = 'SergeySirotkin' OR `InventorID2` = 'SergeySirotkin') ORDER BY `Type` ASC, `LinkText` ASC LIMIT 500 OFFSET 0
- Big Chess. Ordinary chess pieces on an elongated 8 x 14 board with three times as many bishops and two times as many knights. Author: Jeremy Gabriel Good. Inventor: Sergey Sirotkin.
- Building chess. Add a square after every move. Author: Abdul-Rahman Sibahi. Inventor: Abdul-Rahman Sibahi and Sergey Sirotkin.
- Ladder Chess. Non-competing 40 Square contest entry with scaling board. Author: Jeremy Gabriel Good. Inventor: Sergey Sirotkin.