數獨問題 - 數獨
By Steve
at 2011-04-16T01:10
at 2011-04-16T01:10
Table of Contents
※ 引述《cutecpu (可愛中央處理器)》之銘言:
: 請問以下這題有辦法用直觀法解出來嗎?
: 還是一定要用到候選數法呢,感謝<(_ _)>
候選數法
╔═╤═╤═╦═╤═╤═╦═╤═╤═╗
║1│9│5║3│6│7║2│4│8║
╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
║ │7│8║ │5│ ║3│6│9║
╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
║3│ │6║ │9│8║1│5│7║
╠═╪═╪═╬═╪═╪═╬═╪═╪═╣
║A│ │3║7│8│ ║5│9│B║
╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
║7│ │9║ │ │5║ │ │6║
╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
║5│8│4║9│ │6║7│1│ ║
╠═╪═╪═╬═╪═╪═╬═╪═╪═╣
║8│3│2║5│4│9║6│7│1║
╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
║9│ │7║ │1│3║ │2│5║
╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
║C│5│1║ │7│2║9│ │D║
╚═╧═╧═╩═╧═╧═╩═╧═╧═╝
A可填2或6
B可填2或4
C可填4或6
B和C中必有一個為4 D就只能填3
--
: 請問以下這題有辦法用直觀法解出來嗎?
: 還是一定要用到候選數法呢,感謝<(_ _)>
候選數法
╔═╤═╤═╦═╤═╤═╦═╤═╤═╗
║1│9│5║3│6│7║2│4│8║
╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
║ │7│8║ │5│ ║3│6│9║
╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
║3│ │6║ │9│8║1│5│7║
╠═╪═╪═╬═╪═╪═╬═╪═╪═╣
║A│ │3║7│8│ ║5│9│B║
╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
║7│ │9║ │ │5║ │ │6║
╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
║5│8│4║9│ │6║7│1│ ║
╠═╪═╪═╬═╪═╪═╬═╪═╪═╣
║8│3│2║5│4│9║6│7│1║
╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
║9│ │7║ │1│3║ │2│5║
╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
║C│5│1║ │7│2║9│ │D║
╚═╧═╧═╩═╧═╧═╩═╧═╧═╝
A可填2或6
B可填2或4
C可填4或6
B和C中必有一個為4 D就只能填3
--
Tags:
數獨
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