Difference between revisions of "Gattai"
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| Line 13: | Line 13: | ||
| Overlapping boxes: || 2 | | Overlapping boxes: || 2 | ||
|- | |- | ||
| Names: || Sensei, TwoDoku | | Names: || [[Sensei]], TwoDoku | ||
|} | |} | ||
=== DoubleDoku === | === DoubleDoku === | ||
| Line 22: | Line 22: | ||
| Overlapping boxes: || 4 | | Overlapping boxes: || 4 | ||
|- | |- | ||
| Names: || DoubleDoku, Gattai-Near-2 | | Names: || [[DoubleDoku]], Gattai-Near-2 | ||
|} | |} | ||
| Line 44: | Line 44: | ||
| Overlapping boxes: || 4 | | Overlapping boxes: || 4 | ||
|- | |- | ||
| Names: || Sohei, Ring, Diamond | | Names: || [[Sohei]], Ring, Diamond | ||
|} | |} | ||
| Line 83: | Line 83: | ||
| Overlapping boxes: || 9 (4 x triple, 4 x quadruple, 1 x quintuple) | | Overlapping boxes: || 9 (4 x triple, 4 x quadruple, 1 x quintuple) | ||
|- | |- | ||
| Names: || Flower | | Names: || [[Flower]] | ||
|- | |- | ||
| Note: || This is indeed exactly the same as Flower (4). The central sub-grid in flower (5) is superfluous since all its rows, columns and boxes are already defined by one of the other sub-grids. | | Note: || This is indeed exactly the same as Flower (4). The central sub-grid in flower (5) is superfluous since all its rows, columns and boxes are already defined by one of the other sub-grids. | ||
| Line 103: | Line 103: | ||
| Overlapping boxes: || 8 | | Overlapping boxes: || 8 | ||
|- | |- | ||
| Names: || Kazaguruma (Windmill) | | Names: || [[Kazaguruma]] (Windmill) | ||
|} | |} | ||
| Line 125: | Line 125: | ||
| Overlapping boxes: || 12 | | Overlapping boxes: || 12 | ||
|- | |- | ||
| Names: || Shogun | | Names: || [[Shogun]] | ||
|} | |} | ||
| Line 136: | Line 136: | ||
| Overlapping boxes: || 16 | | Overlapping boxes: || 16 | ||
|- | |- | ||
| Names: || Sumo, Daimyo, Harakiri | | Names: || [[Sumo]], Daimyo, Harakiri | ||
|} | |} | ||
| Line 147: | Line 147: | ||
| Overlapping boxes: || 36 | | Overlapping boxes: || 36 | ||
|- | |- | ||
| Names: || Shaolin | | Names: || [[Shaolin]] | ||
|} | |} | ||
== See Also == | == See Also == | ||
* [[Sudoku Variant]] | |||
* [[Sudoku | |||
* [[Clueless]] | * [[Clueless]] | ||
* [[Twin Nonets]] | * [[Twin Nonets]] | ||
[[Category:Sudoku Variants]] | |||
[[Category:Gattai Variants]] | |||
Latest revision as of 13:27, 30 October 2021
Gattai is a Japanese word meaning merged or fused. In the world of Sudoku, this term is used for overlapping Sudokus. A number indicates how many 9x9 Sudokus are in the puzzle.
The overlapping regions always contain complete boxes, although it is theoretically possible to overlap any number of cells. For a puzzle maker, partial overlapping boxes are more difficult to create.
Many of these overlapping patterns have been named by their publishers. For each pattern, the most commonly used name is listed first, followed by alternative names.
Gattai-2
Sensei
| Sudokus: | 2 |
| Overlapping boxes: | 2 |
| Names: | Sensei, TwoDoku |
DoubleDoku
| Sudokus: | 2 |
| Overlapping boxes: | 4 |
| Names: | DoubleDoku, Gattai-Near-2 |
Gattai-3
| Sudokus: | 3 |
| Overlapping boxes: | 6 (5 x double, 1 x triple) |
| Names: | Gattai-3, Triple |
Gattai-4
Sohei
| Sudokus: | 4 |
| Overlapping boxes: | 4 |
| Names: | Sohei, Ring, Diamond |
Butterfly
| Sudokus: | 4 |
| Overlapping boxes: | 12 (8 x double, 4 x quadruple) |
| Names: | Butterfly, Gattai-Near-4 |
Flower
| Sudokus: | 4 |
| Overlapping boxes: | 9 (4 x double, 4 x triple, 1 x quadruple) |
| Names: | (open) Flower |
Gattai-5
Samurai
| Sudokus: | 5 |
| Overlapping boxes: | 4 |
| Names: | Samurai |
Flower
| Sudokus: | 5 |
| Overlapping boxes: | 9 (4 x triple, 4 x quadruple, 1 x quintuple) |
| Names: | Flower |
| Note: | This is indeed exactly the same as Flower (4). The central sub-grid in flower (5) is superfluous since all its rows, columns and boxes are already defined by one of the other sub-grids. |
Wing
| Sudokus: | 5 |
| Overlapping boxes: | 6 |
| Names: | Wing |
Kazaguruma
| Sudokus: | 5 |
| Overlapping boxes: | 8 |
| Names: | Kazaguruma (Windmill) |
Gattai-8
| Sudokus: | 8 |
| Overlapping boxes: | 8 |
| Names: | Gattai-8 |
Gattai-11
Shogun
| Sudokus: | 11 |
| Overlapping boxes: | 12 |
| Names: | Shogun |
Gattai-13
Sumo
| Sudokus: | 13 |
| Overlapping boxes: | 16 |
| Names: | Sumo, Daimyo, Harakiri |
Gattai-25
Shaolin
| Sudokus: | 25 |
| Overlapping boxes: | 36 |
| Names: | Shaolin |
