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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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 Posted: Mon Aug 10, 2009 12:40 am Post subject: MM 1489 and 1491 |
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#1489
| Code: | . . .|. . 8|1 . .
. . .|2 . 5|. . 6
. . .|. 1 .|7 9 .
-----+-----+-----
9 1 6|. 4 .|. 7 .
. . .|. . .|. . .
. 5 .|. 6 .|. 3 9
-----+-----+-----
. 8 1|. 7 .|. 6 .
2 . .|8 . 1|. . .
. . 7|6 . .|. . . |
http://www.sudoku.org.uk/DailySudoku.asp?day=07/08/2009
| Quote: | 1...(4)... r2c3 = r2c7 - r6c7 = r5c9; r5c3 <> 4
2...(2=3)r5c3 - (3)r8c3 = (3)r8c7 - (3=4)r2c7 - (4=2)r6c7; r6c3 and r5c89 are not 2.
3...(3=9)r7c4 - (9)r5c4 = (9-7)r5c6 = (7-2)r6c6 = (2)r4c6 - (2)r4c9 = (2)r7c9; r7c9 <> 3
4...(9)r9c2 = (9)r8c3 - (9)r8c7 = (9-5)r7c7 = (5)r4c7 - (5)r4c4 = (5-9)r5c4 = (9)r7c4; r9c6 <> 9
5...(9=4)r2c3 - (4=3)r1c2 - (3=9)r1c5; r2c5 and r1c3 <> 9 |
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#1491
| Code: | . 7 .|5 . 3|. 6 2
. . .|. . 1|. . 7
. . .|. 6 .|. 4 .
-----+-----+-----
. . 9|. . 5|. . 1
7 . .|4 . 6|. . 5
4 . .|. . .|. . .
-----+-----+-----
. 6 .|. 8 .|. . .
1 . .|3 . .|. . .
2 5 .|6 . 4|. 7 . |
http://www.sudoku.org.uk/DailySudoku.asp?day=09/08/2009
| Quote: | 1...(8=2)r4c4 - UR39[(2)r6c5 = (8)r56c8]; r4c8 <> 8
2...(1)r5c2 = (1)r3c2 - (1=4)r1c3 - (4=9)r1c5 - (9)r23c4 = (9)r7c4 - (9=3)r7c1 - (3)r79c3 = (3)r5c3; r5c3 <> 1
3...(3)... r7c1 = r2c1 - r2c7 = r9c7; r9c3 and r7c9 is not 3 |
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