| View previous topic :: View next topic |
| Author |
Message |
keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
|
 Posted: Wed May 20, 2009 5:08 pm Post subject: A VH+ for pencil & paper |
 |
|
I enjoyed this one.
| Code: | Puzzle: M6025014sh(15)
+-------+-------+-------+
| 5 . . | 2 7 . | 4 . . |
| . 3 . | . . 1 | . . . |
| 7 . . | 9 5 . | . . . |
+-------+-------+-------+
| . 4 . | . . . | 8 . 2 |
| 3 . 6 | . . . | 7 . 5 |
| 9 . 2 | . . . | . 4 . |
+-------+-------+-------+
| 2 . . | . 8 7 | . . . |
| . . . | 6 . . | . 7 . |
| . . . | . 1 5 | 2 . 3 |
+-------+-------+-------+
|
Keith |
|
| Back to top |
|
 |
storm_norm
Joined: 18 Oct 2007
Posts: 1741
|
| Posted: Thu May 21, 2009 7:26 pm Post subject: |
|
|
Keith,
I found a two stepper using only multi-coloring moves on 6.
the first one being a skyscraper
then second multi-coloring move is a long eight link chain on 6 |
|
| Back to top |
|
|
arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
|
| Posted: Thu May 21, 2009 7:33 pm Post subject: |
|
|
| storm_norm wrote: | Keith,
I found a two stepper using only multi-coloring moves on 6.
the first one being a skyscraper
then second multi-coloring move is a long eight link chain on 6 |
Found the same only called your chain a sashimi sword on 6 |
|
| Back to top |
|
|
keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
|
| Posted: Fri May 22, 2009 12:33 am Post subject: |
|
|
The reason I liked this one was because of the many pairs, not for the endgame. It is low on the eraser scale!
However: After basics
| Code: | +----------------+----------------+----------------+
| 5 16 18a | 2 7 36 | 4 136-8 9 |
| 46 3 9 | 8 46 1 | 5 2 7 |
| 7 2 148 | 9 5 346 | 36 1368 68 |
+----------------+----------------+----------------+
| 1 4 5 | 7 369 69 | 8 36 2 |
| 3 8 6 | 1 24 24 | 7 9 5 |
| 9 7 2 | 5 36 8 | 36 4 1 |
+----------------+----------------+----------------+
| 2 16 14b | 3 8 7 | 9 5 46 |
| 48c 5 3 | 6 29 29 | 1 7 48d |
| 68 9 7 | 4 1 5 | 2 68e 3 |
+----------------+----------------+----------------+ |
abc is a flightless XY-wing, pincers on <8>. With transport of c to d and e, eliminating <8> in R1C8. Leaving us here:
| Code: | +----------------+----------------+----------------+
| 5 16c 8 | 2 7 36 | 4 13b 9 |
| 46 3 9 | 8 46 1 | 5 2 7 |
| 7 2 14 | 9 5 34 | 36 1368 68 |
+----------------+----------------+----------------+
| 1 4 5 | 7 369 69 | 8 36a 2 |
| 3 8 6 | 1 24 24 | 7 9 5 |
| 9 7 2 | 5 36 8 | 36 4 1 |
+----------------+----------------+----------------+
| 2 16d 14 | 3 8 7 | 9 5 46e |
| 48 5 3 | 6 29 29 | 1 7 48 |
| 68 9 7 | 4 1 5 | 2 -68 3 |
+----------------+----------------+----------------+ |
abc is a flightless XY-wing with pincers <6>. With transport of c to d and e, eliminating <6> from R9C8 and solving the puzzle.
Keith  |
|
| Back to top |
|
|
Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
|
| Posted: Fri May 22, 2009 3:48 am Post subject: |
|
|
Just for laughs, simple coloring takes out the 6 from r1c8, which eliminates the 6 from r3c6. Then a W-Wing on the 36s in boxes 26 are connected by three strong links on 6, taking out the 3 from r1c8, leaving a pair in row 1, which I don't know how far it can take us.
| Code: |
+-----------+----------+------------+
| 5 16 18 | 2 7 36 | 4 18 9 |
| 46 3 9 | 8 46 1 | 5 2 7 |
| 7 2 148 | 9 5 34 | 36 1368 68 |
+-----------+----------+------------+
| 1 4 5 | 7 369 69 | 8 36 2 |
| 3 8 6 | 1 24 24 | 7 9 5 |
| 9 7 2 | 5 36 8 | 36 4 1 |
+-----------+----------+------------+
| 2 16 14 | 3 8 7 | 9 5 46 |
| 48 5 3 | 6 29 29 | 1 7 48 |
| 68 9 7 | 4 1 5 | 2 68 3 |
+-----------+----------+------------+
|
Play this puzzle online at the Daily Sudoku site |
|
| Back to top |
|
|
storm_norm
Joined: 18 Oct 2007
Posts: 1741
|
| Posted: Tue Jun 02, 2009 5:06 am Post subject: |
|
|
after basics
| Code: | .------------------.------------------.------------------.
| 5 16 18 | 2 7 36 | 4 1368 9 |
| 46 3 9 | 8 46 1 | 5 2 7 |
| 7 2 148 | 9 5 346 | 36 1368 68 |
:------------------+------------------+------------------:
| 1 4 5 | 7 369 69 | 8 36 2 |
| 3 8 6 | 1 24 24 | 7 9 5 |
| 9 7 2 | 5 36 8 | 36 4 1 |
:------------------+------------------+------------------:
| 2 16 14 | 3 8 7 | 9 5 46 |
| 48 5 3 | 6 29 29 | 1 7 48 |
| 68 9 7 | 4 1 5 | 2 68 3 |
'------------------'------------------'------------------' |
| Code: | +--------+-------+----------+
| . . 18 | . . . | . 1368 . |
| . . . | . . . | . . . |
| . . . | . . . | . . . |
+--------+-------+----------+
| . . . | . . . | . 36 . |
| . . . | . . . | . . . |
| . . . | . . . | . . . |
+--------+-------+----------+
| . . . | . . . | . . . |
| . . . | . . . | . . . |
| . . . | . . . | . . . |
+--------+-------+----------+ |
if the 36 pair is false in column eight, then the 18 pair is true in row 1
| Code: | .------------------.------------------.------------------.
| 5 *16 18 | 2 7 36 | 4 *1368 9 |
| 46 3 9 | 8 46 1 | 5 2 7 |
| 7 2 148 | 9 5 346 | 36 1368 68 |
:------------------+------------------+------------------:
| 1 4 5 | 7 369 69 | 8 *36 2 |
| 3 8 6 | 1 24 24 | 7 9 5 |
| 9 7 2 | 5 36 8 | 36 4 1 |
:------------------+------------------+------------------:
| 2 *16 14 | 3 8 7 | 9 5 46 |
| 48 5 3 | 6 29 29 | 1 7 48 |
|*68 9 7 | 4 1 5 | 2 68 3 |
'------------------'------------------'------------------' |
(36)r14c8 = (18)r1c38 - (1=6)r1c2 - (6)r7c2 = (6)r9c1; r9c8 <> 6
either the pair 36 in col 8 is true or the 6 in r9c1 is true.
both force 6 out of r9c8 for a one stepper. |
|
| Back to top |
|
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
