很難很難的數獨 - 數獨
By Lauren
at 2009-03-09T02:10
at 2009-03-09T02:10
Table of Contents
3...6...5
.2.....4.
..7...2..
...6.7...
9...8...6
...9.1...
..2...7..
.4.....1.
6...5...9
這題如不靠暴力搜尋,軟體用的技巧不夠多的話,
會解不出來。
此題使用以下技巧
Analysis results
Difficulty rating: 8.8
This Sudoku can be solved using the following logical methods:
58 x Hidden Single
1 x Direct Hidden Pair
9 x Pointing
1 x Claiming
4 x Naked Pair
3 x Hidden Pair
2 x Swordfish
1 x XY-Wing
1 x XYZ-Wing
1 x Unique Rectangle type 1
1 x Jellyfish
2 x Turbot Fish
12 x Forcing Chain
9 x Region Forcing Chains
1 x Dynamic Region Forcing Chains
有興趣挑戰難題的可以試試。
保證只有唯一解。
--
Tags:
數獨
All Comments
By Wallis
at 2009-03-09T21:55
at 2009-03-09T21:55
By Kelly
at 2009-03-12T06:59
at 2009-03-12T06:59
By Eartha
at 2009-03-15T05:00
at 2009-03-15T05:00
By Oscar
at 2009-03-16T13:23
at 2009-03-16T13:23
By Franklin
at 2009-03-18T11:41
at 2009-03-18T11:41
By Harry
at 2009-03-22T00:31
at 2009-03-22T00:31
By Jacob
at 2009-03-22T06:57
at 2009-03-22T06:57
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