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tlanglet · Posted: Thu Jun 03, 2010 1:27 pm Post subject:

Taking them more or less as I spotted them.................

xy-wing 2-78with vertex 28r8c4; r2c5,r7c4<>7
Flightless xy-wing 2-46 with vertex 26 in r2c5 pseudocell 46 in r9c25 plus transport: (4)r1c4 - r1c3 = r5c3; r5c2<>4
Sashimi s-wing 2 in r29c25; r3c2<>2
Finned x-wing 2 r34c18; r6c8<>2
Finned x-wing 3r16c38; r3c8<>3
xy-wing 1-34 with vertex 14 in r5c3; r23c1, r6c3<>3

Ted

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

Quite a slog... in a nice way Smile

xy-wing(7-28 ) r8c4; r2c5<>7, r7c4<>7
kite(3); r1c3<>3
grouped skyscraper(2); r3c2<>2
kite(2); r4c1<>2
xy-wing(3-14) r5c3; r23c1<>3, r6c3<>3

Basically the same as ted - only favouring turbot over sashimi..

Mogulmeister · Joined: 03 May 2007 Posts: 1151

I certainly can't do it in less steps but I'll see if I can produce a different solve path. I had a quick look and was wondering if I can bring my favourite double candidate eliminating (Major-General??) Remote Pair to play.......I'll have a go tomorrow.

daj95376 · Joined: 23 Aug 2008 Posts: 3854

If you found a Major-General Remote Pair, then I'd like to see it. My solver doesn't find them other than as two, separate chains that I have to recognize and join manually. So I seldom encounter them.

Mogulmeister · Joined: 03 May 2007 Posts: 1151

I only had a quick and cursory look at it Danny and I am doing it manually - I should know more tomorrow, could be I have only seen one half of a toggle. Your solver is indicating I probably won't find it.

daj95376 · Joined: 23 Aug 2008 Posts: 3854

Mogulmeister · Joined: 03 May 2007 Posts: 1151

Understood Danny.

In a rush today so only the first two moves:

First Two Moves

1.(4)r4c8=(4-7)r5c8c=(7-1)r5c2c=r8c2c-(1=4)r7c1-r4c1=(4)r4c8; r4c8=4
2.Major-General Remote Pairs <23> at r1c7, r4c7, r6c8, r6c3; r1c3 <>23
(I don't think this carries any great weight in solve path terms but it was fun)

Dashing out – will follow up later

ronk · Joined: 07 May 2006 Posts: 398

Mogulmeister · Joined: 03 May 2007 Posts: 1151

Gilbert & Sullivan.

3. Colouring on 4s; r3c1, r5c2 <>4
4. XYZ Wing <246> vertex at r1c3; r3c1<>6
5 Major-General again but this time with 2 extra <23>s making 6 in all.
The 23s stationed at r1c7 and r3c1 mean that r3c8<>2
6 XYZ Wing <478> vertex at r7c4 means r8c4<>8

Curtain.

daj95376 · Joined: 23 Aug 2008 Posts: 3854

I misunderstood. I thought your Major-General Remote Pair was the same as Keith's general Remote Pair.

Mogulmeister · Joined: 03 May 2007 Posts: 1151

No I don't even know if there even is a Major-General Remote Pair - hence the G&S references - I should have had him in quotes.. I was following on from ronk's previous remark about brigadier-generals etc.

What can be said about this one is that it toggles so that both 2 and 3 are eliminated in step 2.

I will leave precise nomenclature to those that do that.

keith · Posted: Fri Jun 04, 2010 8:04 pm Post subject:

Mogulmeister · Joined: 03 May 2007 Posts: 1151

The defining feature being that each of the pairs is only 23 - later on this solve path r1c3 also becomes 23 so that there are 6 of these 23s. I can't imagine this is hugely common.