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It's time for a puzzle...(too hard 041518)

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immpy

Joined: 06 May 2017
Posts: 571

Posted: Mon Apr 16, 2018 3:02 am Post subject: It's time for a puzzle...(too hard 041518)

Found this one to be some fun...enjoy.

Code:

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

Play this puzzle online at the Daily Sudoku site

cheers...immp

ZeroAssoluto

Joined: 05 Feb 2017
Posts: 942
Location: Rimini, Italy

Posted: Mon Apr 16, 2018 12:00 pm Post subject:

Hi everyone,

Code:

+-----------------+-----------------+-----------+
| 2 3567 356 | 9 46 4567 | 1 8 67 |
| 49 67 1 | 8 3 67 | 49 2 5 |
| 4579 5678 5689 | 16 126 12567 | 3 49 67 |
+-----------------+-----------------+-----------+
| 8 13 4 | 2 16 136 | 5 7 9 |
| 15 2 35 | 13 7 9 | 8 6 4 |
| 6 9 7 | 5 48 48 | 2 1 3 |
+-----------------+-----------------+-----------+
| 1579 15678 5689 | 136 12689 12368 | 479 49 12 |
| 179 167 2 | 4 5 16 | 79 3 8 |
| 3 4 89 | 7 1289 128 | 6 5 12 |
+-----------------+-----------------+-----------+

Play this puzzle online at the Daily Sudoku site

first step
X-Wing with 6 in r28c26 and -6 in r1c26,r3c26,r4c6,r7c26

Code:

+----------------+--------------+-----------+
| 2 357 356 | 9 4 57 | 1 8 67 |
| 49 67 1 | 8 3 67 | 49 2 5 |
| 4579 578 5689 | 16 12 1257 | 3 49 67 |
+----------------+--------------+-----------+
| 8 13 4 | 2 6 13 | 5 7 9 |
| 15 2 35 | 13 7 9 | 8 6 4 |
| 6 9 7 | 5 8 4 | 2 1 3 |
+----------------+--------------+-----------+
| 1579 1578 5689 | 136 129 1238 | 479 49 12 |
| 179 167 2 | 4 5 16 | 79 3 8 |
| 3 4 89 | 7 129 128 | 6 5 12 |
+----------------+--------------+-----------+

Play this puzzle online at the Daily Sudoku site

second step
W-Wing with 1,6 in r3c4,r8c6 connected by number 1 in r4c6,r5c4 and -6 in r2c6,r7c4

Ciao Gianni

arkietech

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

Posted: Mon Apr 16, 2018 5:47 pm Post subject:

Code:

*--------------------------------------------------------------------*
| 2 3567 356 | 9 46 4567 | 1 8 67 |
| 49 67 1 | 8 3 7-6 | 49 2 5 |
| 4579 5678 5689 |a16 126 12567 | 3 49 67 |
*----------------------+----------------------+----------------------|
| 8 13 4 | 2 16 b136 | 5 7 9 |
| 15 2 35 |a13 7 9 | 8 6 4 |
| 6 9 7 | 5 48 48 | 2 1 3 |
*----------------------+----------------------+----------------------|
| 1579 15678 5689 | 136 12689 12368 | 479 49 12 |
| 179 167 2 | 4 5 b16 | 79 3 8 |
| 3 4 89 | 7 1289 128 | 6 5 12 |
*--------------------------------------------------------------------*
[(6=3)r35c4-(3=6)r48c6]-6r2c6; ste

Marty R.

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

Posted: Mon Apr 16, 2018 11:38 pm Post subject:

Code:

+-----------------+----------------+-----------+
| 2 357 356 | 9 46 457 | 1 8 67 |
| 49 67 1 | 8 3 67 | 49 2 5 |
| 4579 578 5689 | 16 126 1257 | 3 49 67 |
+-----------------+----------------+-----------+
| 8 13 4 | 2 16 13 | 5 7 9 |
| 15 2 35 | 13 7 9 | 8 6 4 |
| 6 9 7 | 5 48 48 | 2 1 3 |
+-----------------+----------------+-----------+
| 1579 1578 5689 | 136 12689 1238 | 479 49 12 |
| 179 167 2 | 4 5 16 | 79 3 8 |
| 3 4 89 | 7 1289 128 | 6 5 12 |
+-----------------+----------------+-----------+[

The above grid is after the 6 X-Wing

Kite (6) hinged b8
6r3c4=r8c2-(6=13)r84c6-(3=16)r53c4=> 6r3c4

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