| 摘要 |
Methods and computer software are provided for making number place puzzles having nonets or number place puzzles having triads. For number place puzzles having triads, no object appears more than once in each row and in each column, and each triad contains no more than one object from each of three distinct groups of objects. The software comprises instructions within each of multiple nested loops that limit access to embedded loops until all selected objects form a valid solution. Multiple solutions provide information for modifying the pre-assigned objects to obtain a single solution. |
