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Clement · Posted: Thu Dec 02, 2010 10:16 pm Post subject: Dec 3 VH

UR 27 in Grid r16c46 removes 27 in r6c4 which solves it.

kuskey · Joined: 10 Dec 2008 Posts: 141 Location: Pembroke, NH

Wings of victory

In addition to Clement's UR, I found the following single-steppers:

XY-Wing 138 piv r1c3 elim 3 r3c9 r1c2
XY-Wing 189 piv r1c5 elim 1 r2c1
XY-Wing 138 piv r3c2 elim 1 r1c9
XYZ-Wing 389 on 8 b12 elim 8 r1c3

Also a different 189 XY-Wing followed by a W-Wing on 18 but had a brain cramp at that point tring to find a solution.

George Woods · Joined: 28 Mar 2006 Posts: 304 Location: Dorset UK

The 89s in boxes 2 and 7 operating on 8s in row 3 quickly get to the result of the UR which I chose to decline!

Marty R. · Posted: Fri Dec 03, 2010 4:38 pm Post subject:

I found six one-steppers:

One UR
One Coloring
One W-Wing
Three XY-Wings

Julian · Joined: 28 Jul 2010 Posts: 9 Location: Menlo, GA

Well, I found one XY 189 and since I've been getting stuck on basics, I'm happy with that.

buettner · Joined: 19 Apr 2006 Posts: 3

After basics, a 138 xy wing on 3, R1C3, R1C9, R3C2, and that does it.

keith · Posted: Sat Dec 04, 2010 1:10 am Post subject: Re: Dec 3 VH