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[ArkieTech]

Code: Select all

 *-----------*
 |5.7|...|...|
 |3..|.2.|1..|
 |...|7.1|...|
 |---+---+---|
 |.4.|5.6|.2.|
 |..6|.8.|9..|
 |.8.|1.9|.6.|
 |---+---+---|
 |...|8.7|...|
 |...|.3.|..2|
 |..1|...|8.3|
 *-----------*


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[Leren]

Skyscraper (6) col 2 + pincers r2c4/r9c5 => r1c5, r8c4 <> 6; stte

Leren

[pjb]

Another short chain:

(6=9) r2c4 - (9=6) r1c5 - r9c5 = (6) r9c2 => r2c2 <> 6; stte

Phil

[Marty R.]

Code: Select all

+----------+---------+------------+
| 5  1   7 | 4  69 3 | 2   8  69  |
| 3  69  4 | 69 2  8 | 1   57 57  |
| 69 2   8 | 7  5  1 | 46  3  469 |
+----------+---------+------------+
| 1  4   9 | 5  7  6 | 3   2  8   |
| 7  5   6 | 3  8  2 | 9   4  1   |
| 2  8   3 | 1  4  9 | 57  6  57  |
+----------+---------+------------+
| 69 3   2 | 8  1  7 | 456 59 456 |
| 8  679 5 | 69 3  4 | 67  1  2   |
| 4  679 1 | 2  69 5 | 8   79 3   |
+----------+---------+------------+


Play this puzzle online at the Daily Sudoku site

W-Wing on 69

-or-

XY-Wing on 67-9

-or-

Remote Pairs on 69