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By Daily-Sudoku.com VH 2014-02-25

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Clement

Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania

Posted: Mon Mar 03, 2014 6:50 am Post subject: By Daily-Sudoku.com VH 2014-02-25

Code:

+-------+-------+-------+
| . . . | 1 . 4 | . 9 . |
| . 3 5 | . . . | . . . |
| . . . | . . . | 8 . 6 |
+-------+-------+-------+
| . . . | 2 8 . | . . . |
| 1 8 . | . . . | . 6 4 |
| . . . | . 6 7 | . . . |
+-------+-------+-------+
| 9 . 2 | . . . | . . . |
| . . . | . . . | 5 7 . |
| . 4 . | 8 . 3 | . . . |
+-------+-------+-------+

Play this puzzle online at the Daily Sudoku site

arkietech

Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

Posted: Mon Mar 03, 2014 12:10 pm Post subject:

Code:

*--------------------------------------------------*
| 8 a27 6 | 1 237 4 |b37 9 5 |
| 47 3 5 | 6 9 8 | 17 14 2 |
| 247 1 9 | 37 237 5 | 8 34 6 |
|----------------+----------------+----------------|
| 6 c59 4 | 2 8 1 |b39 35 7 |
| 1 8 7 | 35 35 9 | 2 6 4 |
| 25 d59-2 3 | 4 6 7 | 19 15 8 |
|----------------+----------------+----------------|
| 9 57 2 | 57 1 6 | 4 8 3 |
| 3 6 8 | 9 4 2 | 5 7 1 |
| 57 4 1 | 8 57 3 | 6 2 9 |
*--------------------------------------------------*
(2=7)r1c2-(7=9)r14c7-r4c2=9r6c2 => -2r6c2; ste

Marty R.

Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

Posted: Mon Mar 03, 2014 6:11 pm Post subject:

Code:

+-----------+----------+---------+
| 8 27 6 | 1 237 4 | 37 9 5 |
| 47 3 5 | 6 9 8 | 17 14 2 |
| 247 1 9 | 37 237 5 | 8 34 6 |
+-----------+----------+---------+
| 6 59 4 | 2 8 1 | 39 35 7 |
| 1 8 7 | 35 35 9 | 2 6 4 |
| 25 259 3 | 4 6 7 | 19 15 8 |
+-----------+----------+---------+
| 9 57 2 | 57 1 6 | 4 8 3 |
| 3 6 8 | 9 4 2 | 5 7 1 |
| 57 4 1 | 8 57 3 | 6 2 9 |
+-----------+----------+---------+

Play this puzzle online at the Daily Sudoku site

XY-Chain: (2=5)r6c1-(5=9)r4c2-(9=3)r4c7-(3=7)r1c7-(7=2)r1c2=>r3c1<>2

Alternate pattern-based solution: Skyscraper on 7 in c24 leaves BUG+2

Clement

Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania

Posted: Mon Mar 03, 2014 9:19 pm Post subject:

Code:

+-----------+----------+---------+
| 8 27 6 | 1 237 4 | 37 9 5 |
| c47 3 5 | 6 9 8 | 17 b14 2 |
| 247 1 9 | 37 237 5 | 8 34 6 |
+-----------+----------+---------+
| 6 59 4 | 2 8 1 | 39 35 7 |
| 1 8 7 | 35 35 9 | 2 6 4 |
| 2-5 259 3 | 4 6 7 | 19 a15 8 |
+-----------+----------+---------+
| 9 57 2 | 57 1 6 | 4 8 3 |
| 3 6 8 | 9 4 2 | 5 7 1 |
| d57 4 1 | 8 57 3 | 6 2 9 |
+-----------+----------+---------+

Another XY Chain
(5=1)r6c8-(1=4)r2c8-(4=7)r2c1-(7=5)r9c1; r6c1<>5; stte.

Leren

Joined: 13 May 2013
Posts: 5

Posted: Tue Mar 04, 2014 12:45 am Post subject:

Code:

*-----------------------------------------------------*
| 8 27 6 | 1 237 4 | 37 9 5 |
| 47 3 5 | 6 9 8 | 17 14 2 |
| 247 1 9 |b37 237 5 | 8 c34 6 |
|-----------------+-----------------+-----------------|
| 6 e59 4 | 2 8 1 | 39 d35 7 |
| 1 8 7 | 35 35 9 | 2 6 4 |
| 25 259 3 | 4 6 7 | 19 15 8 |
|-----------------+-----------------+-----------------|
| 9 7-5 2 |a57 1 6 | 4 8 3 |
| 3 6 8 | 9 4 2 | 5 7 1 |
| 57 4 1 | 8 57 3 | 6 2 9 |
*-----------------------------------------------------*

(5=7) r7c4 - (7=3) r3c4 - r3c8 = (3-5) r4c8 = (5) r4c2 => - 5 r7c2; stte

Leren

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