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Puzzle 10/04/30 (F) BBDB

dailysudoku.com Forum Index -> Puzzles by daj

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daj95376

Joined: 23 Aug 2008
Posts: 3854

Posted: Fri Apr 30, 2010 8:25 am Post subject: Puzzle 10/04/30 (F) BBDB

Code:

+-----------------------+
| 7 . . | . . 2 | 8 . . |
| . 6 9 | 5 . . | 2 1 . |
| . 2 5 | . . . | . 6 7 |
|-------+-------+-------|
| . 8 . | . 5 . | . . . |
| . . . | 8 1 . | . 4 . |
| 1 . . | . . 4 | . . . |
|-------+-------+-------|
| 5 9 . | . . . | . . 6 |
| . 4 8 | . 2 . | . . 1 |
| . . 1 | . . . | 4 2 9 |
+-----------------------+

Play this puzzle online at the Daily Sudoku site

Code:

+-----------------------+
| 7 . . | . . 2 | 8 . . |
| . 6 9 | 5 . . | . 1 . |
| . 2 5 | . . . | . 6 7 |
|-------+-------+-------|
| . 8 . | . 5 . | . . . |
| . . . | 8 1 . | . 4 . |
| 1 . . | . . 4 | . . . |
|-------+-------+-------|
| 5 9 . | . . . | . . 6 |
| . . . | . 2 . | . . 1 |
| . . 1 | . . . | 4 2 9 |
+-----------------------+ # Advanced BBDB

Play this puzzle online at the Daily Sudoku site

peterj

Joined: 26 Mar 2010
Posts: 974
Location: London, UK

Posted: Sat May 01, 2010 11:03 am Post subject:

I tried the "advanced" version. Fun - smattering of all sorts of techniques!

Quote:

Type 4 UR(67); r56c7<>7
xy-wing(359); r78c7<>3
kite(9); r6c8<>9
w-wing(49) (7=9)r4c8-r1c8=r1c4-(9=7)r8c4; r4c4<>7

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