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Hi everyone,

+---------------+---------+-------------+
| 68 9 2568 | 3 7 1 | 4 58 258 |
| 3 4 7 | 5 2 8 | 9 1 6 |
| 1 28 258 | 9 6 4 | 257 578 3 |
+-------- ...

Same two steps for me

Sorry, Gianni, I don't get your logic there at all. I don't understand where the 9 in r2c6 disappears to in between your two steps.

The way I solved it is

+-----------+-------------+---------- ...

What on earth is a WXYZ Wing????!?!?! Shocked

Alternatively

W-Wing - 23 strong link on on 2 in box 8, leaves R6C9 <> 3, STTE

2 stepper for me.

X wing on 4s, columns 2 and 9 means R1C7 <> 4

Reveals
XY Wing 269, pivoted R3C8 means R6C7 <>6

STTE

Another VH that isn't? Or did I make a dodgy mistake that happened to work out?

+------------+------------+--------------+
| 2 3 6 | 9 4 7 | 8 1 5 |
| 7 4 5 | 26 1 8 | 9 3 26 |
| 8 9 1 | 256 56 3 | 246 246 7 |
+------------+-------- ...

Curses

I didn't spot the XYZ, and could only find a two-stepper.

X Wing on 4 in columns 6 & 7 turns Marty's XYZ wing into an XY wing, removing 4 from r6c7, then stte.

I had to use 2 'standard' moves. My first move (which Clement said solves it!) was the 16-7 XY Wing with pivot at r9c9 and then a 19-6 XY Wing with pivot at r9c1 which solved it! I have to go back a ...

+-----------+-----------+--------------+
| 146 12 5 | 67 9 167 | 3 8 1246 |
| 146 8 7 | 5 3 2 | 16 146 9 |
| 169 129 3 | 4 16 8 | 7 5 12 |
+-----------+-----------+----- ...

Hi guys,

The owner says he's out of squigglies. He didn't say so specifically, but reading between the lines I think there won't be more.

Sorry,
Marty

Shame, I preferred those to classics.

I don't think the first XY wing solves it
Hugh

I do! Smile

That's my solution also.

And another - 379, pivoted in R1C9

I also only do them online.

W Wing on 15 in boxes 6 & 9, strong link on 5 in box 3, sets R8C7 <>1, STTE.

Also a 2-stepper, the X wing on 3s also reveals a W-Wing on 27 (boxes 4 & 7), R8C3 <>2, then stte.

S-Wing? What's one of them, then?

After basics:
+---------------+--------------+-------+
| 46 1 3 | 7 26 24 | 8 9 5 |
| 7 2458 245 | 4589 4589 49 | 3 1 6 |
| 9 58 56 | 3 568 1 | 2 4 7 |
+---------------+ ...

After basics (Though some may have been missed):
+----------------+---------------+---------------+
| 9 1367 136 | 2 17 5 | 8 13 4 |
| 2 8 14 | 39 1479 1349 | 6 5 1 ...

The X-Wing also opens another XY-Wing 4-89, pivot r3c8, making r2c4<>4, which also STTE.