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Daily Sudoku for 29/4/2016-Diabolical

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Clement

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

Posted: Fri Apr 29, 2016 4:44 pm Post subject: Daily Sudoku for 29/4/2016-Diabolical

Code:

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

Play this puzzle online at the Daily Sudoku site

bat999

Joined: 09 Jul 2015
Posts: 55
Location: UK

Posted: Fri Apr 29, 2016 8:21 pm Post subject:

Code:

.-------------------.------------.------------------.
| 467 49 678 | 589 1 2 | 6789 3 57 |
| 5 9-2 2678 | 89 4 3 | 6789 a26 1 |
| 3 1 28 | 589 6 7 | 89 4 25 |
:-------------------+------------+------------------:
| 8 6 3 | 7 2 9 | 5 1 4 |
| 1 7 9 | 3 5 4 | 2 8 6 |
| 2 5 4 | 1 8 6 | 3 7 9 |
:-------------------+------------+------------------:
| c46 8 1256 | 26 7 15 | 146 9 3 |
| 9 c24 12567 | 26 3 15 | 1467 b56-2 8 |
| c67 3 12567 | 4 9 8 | 167 b256 b27 |
'-------------------'------------'------------------'

(2=6)r2c8 - (6=7)r89c8,r9c9 - (7=2)r79c1,r8c2 => -2 r2c2,r8c8; stte
Cool

Marty R.

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

Posted: Fri Apr 29, 2016 10:44 pm Post subject:

Code:

+--------------+----------+-------------+
| 467 49 678 | 589 1 2 | 6789 3 57 |
| 5 29 2678 | 89 4 3 | 6789 26 1 |
| 3 1 28 | 589 6 7 | 89 4 25 |
+--------------+----------+-------------+
| 8 6 3 | 7 2 9 | 5 1 4 |
| 1 7 9 | 3 5 4 | 2 8 6 |
| 2 5 4 | 1 8 6 | 3 7 9 |
+--------------+----------+-------------+
| 46 8 1256 | 26 7 15 | 146 9 3 |
| 9 24 12567 | 26 3 15 | 1467 256 8 |
| 67 3 12567 | 4 9 8 | 167 256 27 |
+--------------+----------+-------------+

Play this puzzle online at the Daily Sudoku site

DP (89) r12c47 using internals
7r12c7=6r12c7=5r1c4
7r12c7-t89c7=r9c9-(7=642)b7p157-(2=9)r2c2
6r12c7-(6=2)r2c8-(2=9)r2c2
5r1c4-(5=892)r3c473-(2=9)r2c2=> 9r2c2

Clement

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

Posted: Sat Apr 30, 2016 8:06 am Post subject: Daily Sudoku for 29/4/2016-Diabolical

Code:

+--------------+----------+-------------+
| g467 ah4-9 678 | 589 1 2 | 6789 3 57 |
| 5 b29 2678 | 89 4 3 | 6789 c26 1 |
| 3 1 28 | 589 6 7 | 89 4 25 |
+--------------+----------+-------------+
| 8 6 3 | 7 2 9 | 5 1 4 |
| 1 7 9 | 3 5 4 | 2 8 6 |
| 2 5 4 | 1 8 6 | 3 7 9 |
+--------------+----------+-------------+
| 46 8 1256 | 26 7 15 | 146 9 3 |
| 9 24 12567 | 26 3 15 | 1467 d256 8 |
| f67 3 12567 | 4 9 8 | 167 d256 e27 |
+--------------+----------+-------------+

9r1c2 - (9=2)r2c2 - r2c8 = r89c8 - (2=7)r9c9 - r9c1 = (7-4)r1c1 = (4)r1c2 => -9r1c2; stte

JC Van Hay

Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium

Posted: Sun May 01, 2016 1:38 pm Post subject:

Code:

+------------------+------------+--------------------+
| 467 49 678 | 589 1 2 | 6789 3 57 |
| 5 9(2) 2678 | 89 4 3 | 6789 26 1 |
| 3 1 8(2) | 589 6 7 | 89 4 5(2) |
+------------------+------------+--------------------+
| 8 6 3 | 7 2 9 | 5 1 4 |
| 1 7 9 | 3 5 4 | 2 8 6 |
| 2 5 4 | 1 8 6 | 3 7 9 |
+------------------+------------+--------------------+
| 46 8 1256 | 26 7 15 | 146 9 3 |
| 9 (24) 12567 | 26 3 15 | 16-7(4) 256 8 |
| 67 3 12567 | 4 9 8 | 167 256 (27) |
+------------------+------------+--------------------+

(7=2)r9c9-2r3c9=2r3c3-2r2c2=(2-4)r8c2=4r8c7 -> -7r8c7; stte

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