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daj95376 · Joined: 23 Aug 2008 Posts: 3854

Final step perfect for np() folk. Earlier steps a challenge.

tlanglet · Posted: Thu May 20, 2010 2:56 pm Post subject:

Danny, I don't think that I met the challenge.

AUR46 r12c34 with SL4 in r1c34 & r12c4; r2c3<>6,
Flightless xyz-wing 168 in r8c9 with transport: (1)r8c9 - (1=6)r8c6 - r5c6 = r5c7 - r13c7 = r23c9; r9c9<>6
xy-wing 2-46 with vertex 26 in r1c7; r2c4<>4,
ANP(68=7)r4c19 - (7=8_r2c9; r3c7<>8
ER2 with hinge in box9 SL r1c37; r7c3<>2
(8)r3c9 - (8=6)r3c1 - r4c1 = (6-4)r4c3 = (4-8)r2c3 = (8)r2c9; r3c9<>8
BUG+1 forces r4c2=8

Ted

peterj · Joined: 26 Mar 2010 Posts: 974 Location: London, UK

Thanks, that was a fun puzzle! For me a 'finned xy-wing' was my advanced step ... hopefully this is OK as I haven't had even a sip of burgundy (yet!)

xy-wing(246) r2c4<>4
skyscraper(2) r7c3<>2
w-wing(68) (8=6)r3c1-r1c3=r1c7-(6=8)r5c7; r3c7<>8
"finned" xy-wing(268) (26)r1c3 pincers (68)r3c1, (28=3)r8c3-(3=1)r7c3-(1=8)r6c3; r2c3<>8
BUG+1; r4c2=8

Mogulmeister · Joined: 03 May 2007 Posts: 1151

Well this answer of mine is a bit of a dog's breakfast but I'd like to stick it up for discussion's sake.

1. Simple XY Wing 246 ; r2c4 <>4

2. Bifurcation along a discontinuous loop or "Bloated Baphomet"

There's a baphomet (discontinuous loop) which causes r6c3 <> 6

(18=6)r6c3-r1c3=r1c7-r5c7=r6c8-(6)r6c3 This loop shown in orange/green

BUT how about a bifurcated extension ? Follow it around again but start at r7c3 follow the same chain but when you get to the second orange cell at r5c7 instead take the strong link (pink) at r5c6 and continue the chain:
(123=6)r7c3-r1c3=r1c7-r5c7=r5c6-r8c6=r7c5-r7c3 and thus r7c3 <> 6

In effect this is either a simultaneous bifurcation or a "bloated" baphomet or you can view pincers for 6 at r1c3 r7c5 for the second elimination.

The result is r67c3<>6. I have no doubt this can be tidied up (or destroyed altogether!!)

3. XYZ wing 678 r3c7 <> 8 solves puzzle.

Mogulmeister · Joined: 03 May 2007 Posts: 1151

Afterthought - I wonder if Danny/Wapiti will see fish ? Ted will see something even more incredible and I will cement my reputation as "the barbarian at the gate" or worse......either way I'm off for a beer!

Cheers,

Mogul

peterj · Joined: 26 Mar 2010 Posts: 974 Location: London, UK

Mogul
For me your move seems to be a "standard" colour trap

So here buddies of blue and orange are eliminated. I tried this but it didn't seem to help me.

I completely missed the xyz-wing - but for me this doesn't leave me with a basics-only grid? I've probably missed something in basics.

Peter

Marty R. · Posted: Thu May 20, 2010 9:50 pm Post subject:

I started with an XY-Wing (264) and XYZ-Wing (678). I saw the Finned X-Wing (2) but didn't see much potential with it. There was a potential DP (18-89-19) in boxes 456. R4c3 needed to be 4 or 6 to kill it and either number solved box 7 the same way.

ronk · Joined: 07 May 2006 Posts: 398

daj95376 · Joined: 23 Aug 2008 Posts: 3854

wapati · Posted: Fri May 21, 2010 3:05 am Post subject:

Mogulmeister · Joined: 03 May 2007 Posts: 1151

Thanks guys - feedback appreciated- the pull of the pub plus a mistransposition before the XYZ wing left me with a false ending! Embarassed

I liked the ANP to finish as suggested in the hint. Nice one Danny!

Ronk - I would wager that the multi-colouring term was first and the "trap" and "wrap" followed. I had an absence from the game for over a year and when I left I don't recall the colloquialisms but on returning, those terms seemed to be ubiquitous.