數獨求解 - 數獨
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By Kelly
at 2012-12-20T22:55
at 2012-12-20T22:55
Table of Contents
防個雷
以下看9可以填入的位置
1 2 3 4 5 6 7 8 9
╭─┬─┬─╥─┬─┬─╥─┬─┬─╮
A│1 │█│7 ║8 │█│█║█│█│█│ 黃色的方塊滿足三行三列刪除法
├─┼─┼─╫─┼─┼─╫─┼─┼─┤
B│ │5 │ ║█│6 │7 ║█│█│3 │ 所以紅色的方塊都可以刪除9的可能
├─┼─┼─╫─┼─┼─╫─┼─┼─┤
C│ │█│ ║5 │4 │█║7 │8 │█│ 再看A5的候選數: 29
╞═╪═╪═╬═╪═╪═╬═╪═╪═╡
D│5 │ │2 ║3 │█│4 ║█│█│8 │ 所以可以知道A5 = 2
├─┼─┼─╫─┼─┼─╫─┼─┼─┤
E│7 │ │9 ║ │5 │8 ║2 │ │ │
├─┼─┼─╫─┼─┼─╫─┼─┼─┤
F│4 │ │ ║█│█│2 ║█│█│5 │
╞═╪═╪═╬═╪═╪═╬═╪═╪═╡
G│ │2 │ ║7 │8 │█║█│█│█│
├─┼─┼─╫─┼─┼─╫─┼─┼─┤
H│9 │7 │5 ║4 │3 │ ║8 │2 │ │
├─┼─┼─╫─┼─┼─╫─┼─┼─┤
I│ │ │ ║█│█│5 ║3 │█│7 │
╰─┴─┴─╨─┴─┴─╨─┴─┴─╯
防雷
--
以下看9可以填入的位置
1 2 3 4 5 6 7 8 9
╭─┬─┬─╥─┬─┬─╥─┬─┬─╮
A│1 │█│7 ║8 │█│█║█│█│█│ 黃色的方塊滿足三行三列刪除法
├─┼─┼─╫─┼─┼─╫─┼─┼─┤
B│ │5 │ ║█│6 │7 ║█│█│3 │ 所以紅色的方塊都可以刪除9的可能
├─┼─┼─╫─┼─┼─╫─┼─┼─┤
C│ │█│ ║5 │4 │█║7 │8 │█│ 再看A5的候選數: 29
╞═╪═╪═╬═╪═╪═╬═╪═╪═╡
D│5 │ │2 ║3 │█│4 ║█│█│8 │ 所以可以知道A5 = 2
├─┼─┼─╫─┼─┼─╫─┼─┼─┤
E│7 │ │9 ║ │5 │8 ║2 │ │ │
├─┼─┼─╫─┼─┼─╫─┼─┼─┤
F│4 │ │ ║█│█│2 ║█│█│5 │
╞═╪═╪═╬═╪═╪═╬═╪═╪═╡
G│ │2 │ ║7 │8 │█║█│█│█│
├─┼─┼─╫─┼─┼─╫─┼─┼─┤
H│9 │7 │5 ║4 │3 │ ║8 │2 │ │
├─┼─┼─╫─┼─┼─╫─┼─┼─┤
I│ │ │ ║█│█│5 ║3 │█│7 │
╰─┴─┴─╨─┴─┴─╨─┴─┴─╯
防雷
--
Tags:
數獨
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