The slash pattern

Everything about Sudoku that doesn't fit in one of the other sections

The slash pattern

Postby JPF » Sun Apr 01, 2007 11:00 pm

The slash pattern was proposed here :
Here's an easy example :
Code: Select all
 . . . . . . . 1 2
 . . . . . . 3 4 5
 . . . . . 3 6 7 .
 . . . . 2 6 8 . .
 . . . 9 3 8 . . .
 . . 1 5 7 . . . .
 . 1 5 2 . . . . .
 9 7 4 . . . . . .
 8 3 . . . . . . .

minimal, all singles, SE=2.0, 7 steps.

At the opposite, here's a minimal puzzle with SE=9.0 :
Code: Select all
 . . . . . . . 1 2
 . . . . . . 3 4 5
 . . . . . 5 6 7 .
 . . . . 8 2 9 . .
 . . . 1 5 9 . . .
 . . 1 6 3 . . . .
 . 3 4 8 . . . . .
 1 7 6 . . . . . .
 9 5 . . . . . . .



Some more minimal slash pattern puzzles :
Code: Select all
.......12......345.....267.....358.....428.....469.....913.....476......82....... SE  9.0
.......12......345.....567.....318.....956.....248.....483.....279......65....... SE  8.9
.......12......345.....567.....382.....651.....172.....493.....172......85....... SE  8.7
.......12......345.....367.....528.....638.....641.....645.....279......83....... SE  8.5
.......12......345.....567.....382.....651.....142.....793.....148......25....... SE  8.4
.......12......345.....367.....389.....159.....127.....245.....176......93....... SE  8.4
.......12......345.....567.....382.....651.....142.....793.....158......64....... SE  8.4
.......12......345.....367.....568.....138.....149.....675.....194......83....... SE  8.4
.......12......345.....678.....672.....152.....138.....485.....193......26....... SE  8.4
.......12......345.....267.....589.....129.....173.....785.....143......92....... SE  8.4
.......12......345.....567.....328.....158.....149.....673.....194......85....... SE  8.4
.......12......345.....367.....268.....138.....174.....462.....379......81....... SE  8.4
.......12......345.....367.....268.....138.....174.....162.....379......84....... SE  8.4
.......12......345.....567.....362.....751.....142.....423.....176......85....... SE  8.4
.......12......345.....567.....829.....159.....164.....438.....176......95....... SE  8.4
.......12......345.....567.....382.....651.....142.....793.....158......24....... SE  8.4
.......12......345.....567.....829.....159.....164.....438.....167......95....... SE  8.4
.......12......345.....367.....768.....138.....195.....145.....275......63....... SE  8.4
.......12......345.....367.....879.....139.....142.....625.....834......95....... SE  8.4
.......12......345.....567.....829.....179.....145.....728.....146......35....... SE  8.4
.......12......345.....267.....358.....428.....461.....193.....476......82....... SE  8.4
.......12......345.....367.....268.....438.....415.....152.....479......83....... SE  8.4
.......12......345.....567.....829.....951.....173.....728.....143......95....... SE  8.4
.......12......345.....267.....358.....428.....461.....193.....467......82....... SE  8.4
.......12......345.....267.....859.....429.....413.....168.....473......92....... SE  8.4
.......12......345.....567.....328.....158.....149.....463.....179......85....... SE  8.4
.......12......345.....567.....892.....451.....173.....423.....178......65....... SE  8.4
.......12......345.....678.....578.....198.....164.....625.....143......89....... SE  8.4
.......12......345.....367.....628.....138.....174.....162.....379......85....... SE  8.3
.......12......345.....267.....358.....428.....419.....163.....479......82....... SE  8.3
.......12......345.....567.....829.....159.....143.....468.....173......95....... SE  8.3
.......12......345.....567.....829.....149.....175.....428.....176......95....... SE  8.3
.......12......345.....267.....358.....418.....472.....153.....476......82....... SE  8.3
.......12......345.....567.....829.....179.....145.....728.....146......95....... SE  8.3
.......12......345.....267.....358.....478.....412.....753.....416......82....... SE  8.3
.......12......345.....367.....568.....138.....124.....295.....174......83....... SE  8.3
.......12......345.....367.....289.....169.....143.....452.....167......93....... SE  8.3
.......12......345.....567.....382.....751.....142.....493.....158......26....... SE  8.3
.......12......345.....267.....859.....429.....473.....658.....413......92....... SE  8.3
.......12......345.....567.....328.....956.....148.....483.....179......65....... SE  8.3


JPF
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re: diagonal band

Postby Pat » Fri Apr 06, 2007 8:12 am

JPF wrote:At the opposite --


      so you're trying for tough puzzles --
      but along the way, perhaps you've also generated other levels?
      e.g. suitable contributions for "ulterior" or "superior plus" (or anything in between)

      thanks!
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Postby wapati » Fri Apr 06, 2007 8:47 am

I have no idea about what your post was intended to suggest.

The data you showed us hints that hard puzzles are most common, although pretty easy ones can happen.

What is the intent of this post?
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