Query Results for
Type=Problem
Categories=2d,Singleplayer,Diff-Other
SELECT * FROM `Item` LEFT JOIN `IndexEntry` USING (ItemID) WHERE `Type` = 'Problem' AND FIND_IN_SET(:'2d',`Categories`) AND FIND_IN_SET(:'Singleplayer',`Categories`) AND FIND_IN_SET(:'Diff-Other',`Categories`) AND `IsHidden` = 0 AND `Item`.`IsDeleted` = 0 AND `Language` = 'English' ORDER BY `LinkText`, `Item`.`Summary` ASC LIMIT 500 OFFSET 0
- Bosma chess. King that is attacked three or more times is not considered to be in check. Fairy chess problem theme. Author: Hans L. Bodlaender. Inventor: R. Bosma.
- Refusal chess. A problem. Author: Hans L. Bodlaender. Inventor: C. H. O'D. Alexander.