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daj95376
Joined: 23 Aug 2008 Posts: 3854
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Posted: Sat Oct 09, 2010 6:21 am Post subject: Puzzle 10/10/09: B Advanced |
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Code: | +-----------------------+
| . . . | . . . | . . . |
| . 8 6 | . 9 1 | . 5 . |
| . 1 5 | . . . | 4 . . |
|-------+-------+-------|
| . . . | 4 7 . | . 8 . |
| 6 4 . | 5 . . | . . . |
| 8 5 . | . 1 3 | 2 . . |
|-------+-------+-------|
| . . 2 | . . 5 | 7 . . |
| . 6 . | 2 . . | . . 9 |
| . . . | . . . | . . 4 |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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peterj
Joined: 26 Mar 2010 Posts: 974 Location: London, UK
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Posted: Sat Oct 09, 2010 1:52 pm Post subject: |
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Two (VH+?) steps....
Quote: | type 4 UR(28) ; r3c56<>8
x-wing(6) ; r3c8<>6, r69c4<>6 |
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Marty R.
Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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Posted: Sun Oct 10, 2010 4:48 pm Post subject: |
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I used four steps.
Finned X-Wing (8)
XY-Wing (369)
Type 1 UR (19)
Type 1 UR (28) |
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daj95376
Joined: 23 Aug 2008 Posts: 3854
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Posted: Sun Oct 10, 2010 5:00 pm Post subject: |
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peterj wrote: | Two (VH+?) steps....
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The UR Type 4 was in the old VH+ rating, and the X-Wing is in the VH rating.
I recently combined Basics and Basics+ into just a Basics rating. I also combined turbot, VH+, and Advanced into just an Advanced rating. Finally, I added Remote Pair to the VH rating and S-Wing plus L-Wing to the XY rating. Here's a copy of my current ratings and notes on the XY rated wings.
Code: | ===== ===== ===== ===== Ratings are Accumulative in Techniques ===== ===== =====
Basics: Naked/Hidden Single/Pair/Triple/Quad, Locked Candidates 1/2
VH: BUG+1, Remote Pair, UR Type 1, X-Wing, XY-Wing
Advanced: 2-String Kite, Skyscraper, Empty Rectangle, finned/Sashimi X-Wing,
XYZ-Wing, UR Type 2/4
XY: M/W/S/L-Wing, XY-Chain, BUG+2, BUG+3, other URs
Extreme: Chain, Loop, SIN (Single Inference Network)
M-Wing: (A=B) - B = (B-A) = A
W-Wing: (A=B) - B = B - (B=A)
S-Wing: A = A - (A=B) - B = B {1st A and last B in the same house}
L-Wing: A = A - A = (A - B) = B {1st A and last B in the same house}
(reverse) B = (B - A) = A - A = A {1st B and last A in the same house}
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Note the presence of "other URs" in the XY rating. I've actually posted puzzles that had this as the XY step ... and I plan to continue slipping them in periodically. |
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