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ZeroAssoluto
Joined: 05 Feb 2017
Posts: 1019
Location: Rimini, Italy
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 Posted: Sun Oct 02, 2022 9:49 am Post subject: Oct 02 VH |
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Hi everyone,
| Code: |
+-----------+--------+-------------+
| 56 2 1 | 9 8 3 | 4 7 56 |
| 4 35 8 | 56 7 1 | 9 2 356 |
| 356 9 7 | 56 4 2 | 8 15 1356 |
+-----------+--------+-------------+
| 8 14 6 | 2 3 9 | 15 145 7 |
| 9 35 35 | 4 1 7 | 2 6 8 |
| 7 14 2 | 8 5 6 | 3 14 9 |
+-----------+--------+-------------+
| 15 7 4 | 3 2 8 | 6 9 15 |
| 135 6 35 | 7 9 4 | 15 8 2 |
| 2 8 9 | 1 6 5 | 7 3 4 |
+-----------+--------+-------------+
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Play this puzzle online at the Daily Sudoku site
| Quote: | W-Wing
5,6 in r1c9,r3c4 SL with number 6 in r2c49 and -5 in r3c89
5,6 in r1c9,r3c4 SL with number 6 in r13c1 and -5 in r3c89
or UR 1,4 in r46c28 and r4c8=5 |
Ciao Gianni |
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TomC
Joined: 30 Oct 2020
Posts: 359
Location: Wales
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| Posted: Sun Oct 02, 2022 10:00 am Post subject: |
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Sometimes you don't have to complete all the basic moves to find a solution
At this stage, r4c7 = 1 to solve
| Code: |
+--------------+----------+------------------+
| 56 2 1 | 9 8 3 | 4 7 56 |
| 4 35 358 | 56 7 1 | 9 2 356 |
| 356 9 357 | 56 4 25 | 8 1356 1356 |
+--------------+----------+------------------+
| 158 14-5 6 | 2 3 9 | a15 14-58 7 |
| 9 35 358 | 4 1 7 | 2 b568 c568 |
| 7 14 2 | 8 5 6 | 3 14 9 |
+--------------+----------+------------------+
| 15 7 4 | 3 2 58 | 6 9 158 |
| 135 6 35 | 7 9 458 | 15 13458 2 |
| 235 8 9 | 1 6 45 | 7 345 345 |
+--------------+----------+------------------+
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Play this puzzle online at the Daily Sudoku site
If a=5, bc=<68> reveals the <14> Unique Rectangle in r46c28 |
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TomC
Joined: 30 Oct 2020
Posts: 359
Location: Wales
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| Posted: Sun Oct 02, 2022 12:41 pm Post subject: |
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From Gianni's grid, r2c2=5 to solve
If r2c2=3, then you would get a <56> pair in box 1 and box 3 which would then leave no room for a <5> in row 7 |
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dongrave
Joined: 06 Mar 2014
Posts: 572
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| Posted: Sun Oct 02, 2022 1:20 pm Post subject: |
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| I used the X-Wing of 5's in rows 1 and 7 (see Gianni's grid) and that opened up a couple of 356 XY-Wings which solves it. |
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TomC
Joined: 30 Oct 2020
Posts: 359
Location: Wales
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| Posted: Mon Oct 03, 2022 5:58 pm Post subject: |
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| TomC wrote: | From Gianni's grid, r2c2=5 to solve
If r2c2=3, then you would get a <56> pair in box 1 and box 3 which would then leave no room for a <5> in row 7 |
Also if r2c2=3 you would get a <56> pair in box 1,2 and 3 which looks to me as a type of Unique Rectangle. Or is it something else? |
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