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VH+ 021021

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immpy

Joined: 06 May 2017
Posts: 574

Posted: Wed Feb 10, 2021 7:32 pm Post subject: VH+ 021021

Hello all, enjoy the puzzle...

Code:

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

Play this puzzle online at the Daily Sudoku site

cheers...immp

TomC

Joined: 30 Oct 2020
Posts: 359
Location: Wales

Posted: Thu Feb 11, 2021 9:53 am Post subject:

Code:

+------------+------------+------------+
| 48 1 2 | 3 7 9 | 6 5 48 |
| 6 45 3 | 8 1 45 | 2 7 9 |
| 9 458 7 | 6 45 2 | 3 148 14 |
+------------+------------+------------+
| 2 9 1 | 7 3 8 | 4 6 5 |
| 37 6 58 | 4 25 1 | 78 9 23 |
| 347 47 58 | 25 9 6 | 78 13 123 |
+------------+------------+------------+
| 78 3 9 | 1 46 47 | 5 2 468 |
| 1 78 4 | 25 256 357 | 9 38 36 |
| 5 2 6 | 9 8 34 | 1 34 7 |
+------------+------------+------------+

Play this puzzle online at the Daily Sudoku site

After basics and the X wing on 8's in r17

Eliminate the 1 in r3c8 with the chain r6c8=3, r5c9=3, r5c5=2, r3c5=4 giving 2 1's in box 3

Tom

dongrave

Joined: 06 Mar 2014
Posts: 572

Posted: Thu Feb 11, 2021 5:41 pm Post subject:

Code:

+------------+------------+------------+
| 48 1 2 | 3 7 9 | 6 5 48 |
| 6 45 3 | 8 1 45 | 2 7 9 |
| 9 458 7 | 6 45 2 | 3 148 148 |
+------------+------------+------------+
| 2 9 1 | 7 3 8 | 4 6 5 |
| 37 6 58 | 4 25 1 | 78 9 23 |
| 347 47 58 | 25 9 6 | 78 13 123 |
+------------+------------+------------+
| 78 3 9 | 1 46 47 | 5 2 468 |
| 1 78 4 | 25 256 357 | 9 38 368 |
| 5 2 6 | 9 8 34 | 1 34 7 |
+------------+------------+------------+

8*r1c9-(8=4)r1c1-r2c2=r2c6-(4=5)r3c5-(5=2)r5c5-(25=6)r8c5-(68*=3)r8c9-(3=2)r5c9 contradiction (2r5c59) => r1c9 <> 8; stte.

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