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 Post subject: A Kazagurama
PostPosted: Thu Jan 29, 2009 6:13 pm 
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All sudoku puzzles in this forum post are the intellectual property of Børge Alexander Tetlie Anderssen.
Copyright © 2009 Børge Alexander Tetlie Anderssen. All rights reserved. Terms of Use.


There are nine puzzles and seven difficulties to choose from.
All nine puzzles have the same solution.

A) Beginner.
B) Novice.
C) Apprentice (4 Intersections, ? Naked Subsets).
D) Junior Master 1 (28 Intersections, 1 Naked Pair, 1 Naked Triplet, 1 Two String Kite in g4). Select to view TECHNIQUE and GRID number.
E) Junior Master 2 (34 Intersections, 1 Naked Triplet, 1 XYZ-Wing in g3). Select to view TECHNIQUE and GRID number.
F) Master (28 Intersections, 1 Naked Pair, 2 Naked Triplets, 1 Naked Quad, 2 XY-Wings in g4). Select to view GRID number.
G) Grand Master 1 (32 Intersections, 4 Naked Triplets, 1 Uniqueness Test 1 in g3 or g4, 1 Y-Wing in g4, 2 Empty Rectangles in g4). Select to view GRID numbers.
H) Grand Master 2 (20 Intersections, 4 Naked Pairs, 2 X-Wing in g4, 1 XY-Wing in g2, 2 Y-Wings: one in g2 and one in g4, 1 XY-Chain in g4, 1 XY-Loop in g3). Select to view GRID numbers.
I) Wizard.



A Kazagurama #A (Beginner)

Rating based on required solving techniques:  Easy

Image

007000000020000000100009420003000000000000007070825040000006000040080000900200000
000000000280700600070052040800009000060000805005028000000600000000840506000000700
006000800080000060200000005000000000000000000000000000600000001090000050005000200
027304000000800000500000000072050600000080090000003005100000040009040503000900000
000001003000050900000200000800020000090800000030000897000007030081400060000000000



A Kazagurama #B (Novice)

Rating based on required solving techniques:  Moderate

Image

007000000020000000100009420003000000000000007070825040000006000040080000900200000
000000000280700600070052040800009000060000805005028000000600000000840506000000700
006000800080000060200000005000000000000000000000000000600000001090000050005000200
027304000000800000500000000070050600000080090000003005100000040009040503000900000
000001003000050900000200000800020000090800000030000897000007030081400060000000000



A Kazagurama #C (Apprentice)

Rating based on required solving techniques:  Hard

Image

007000000020000000100009420003000000000000007070825040000006000040080000900200000
000000000280700600070052040800009000060000805000028000000600000000840506000000700
006000800080000060200000000000000000000000000000000000600000000000000050005000200
027304000000800000500000000072050600000080000000003005100000040009040503000900000
000000003000050900000200000800020000090800000030000897000007030081400060000000000



A Kazagurama #D (Junior Master 1)

Rating based on required solving techniques:  Extra Hard

Image

007000000020000000100009420003000000000000007070825040000006000040080000900200000
000000000280700600070052040800009000060000805005028000000600000000040506000000700
006000800080000060200000005000000000000000000000000000600000000090000050005000200
027304000000800000500000000072050600000080090000003005100000040009040503000900000
000000003000050900000200000800020000090800000030000897000007030081400060000000000



A Kazagurama #E (Junior Master 2)

Rating based on required solving techniques:  Super Hard

Image

007000000020000000100009420003000000000000007070825040000006000040080000900200000
000000000280700600070052040800009000060000805000028000000600000000840506000000700
006000800080000060200000000000000000000000000000000000600000001000000050005000200
027304000000800000500000000070050600000080000000003005100000040009040503000900000
000001003000050900000200000800020000090800000030000897000007030081400060000000000



A Kazagurama #F (Master)

Rating based on required solving techniques:  Super Hard

Image

007000000020000000100009420003000000000000007070825040000006000040080000900000000
000000000280700600070052040800009000060000805005028000000600000000040506000000700
006000800080000060000000005000000000000000000000000000600000001090000050005000200
027304000000800000500000000072050600000080090000003005100000040009040503000900000
000001003000050900000200000800020000090800000030000897000007030081400060000000000



A Kazagurama #G (Grand Master 1)

Rating based on required solving techniques:  Super Hard

Image

007000000020000000100009420003000000000000007070825040000006000040080000900200000
000000000280700600070052040800009000060000805005028000000600000000040506000000700
006000800080000060200000005000000000000000000000000000600000001000000050005000200
027304000000800000500000000072050600000080000000003005100000040009040503000900000
000001003000050900000200000800020000090800000030000897000007030081400060000000000



A Kazagurama #H (Grand Master 2)

Rating based on required solving techniques:  Ultra Hard

Image

007000000020000000100009420003000000000000007070825040000000000040080000900200000
000000000280700600070052040800009000060000805005028000000600000000840506000000700
000000800080000060200000005000000000000000000000000000600000000090000050005000200
027304000000800000500000000072050600000080090000003005100000040009040503000900000
000000003000050900000200000800020000090800000030000897000007030081400060000000000



A Kazagurama #I (Wizard)

Rating based on required solving techniques:  Nightmare

Image

007000000020000000100009420003000000000000007070825040000006000040080000900000000
000000000280700600070052040800009000060000805000028000000600000000840506000000700
006000800080000060000000000000000000000000000000000000600000001000000050005000200
027304000000800000500000000070050600000080000000003005100000040009040503000900000
000001003000050900000200000800020000090800000030000897000007030081400060000000000

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Last edited by Børge on Fri May 01, 2009 8:48 pm, edited 1 time in total.

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 Post subject: Re: A Kazagurama
PostPosted: Sat Jan 31, 2009 9:13 pm 
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Oh, cool! I'm still slogging my way through the Journeyman edition of the Christmas 2008 Shogun, but I want to try this one soon!


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 Post subject: Re: A Kazagurama
PostPosted: Sun Feb 01, 2009 11:51 am 
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enxio27 wrote:
Oh, cool! I'm still slogging my way through the Journeyman edition of the Christmas 2008 Shogun, but I want to try this one soon!
Glad you appreciate the effort. Creating the puzzles took a bit more time than anticipated.
I think the right puzzle for you is the Apprentice level.

If you want to put the Journeyman edition of the Christmas 2008 Shogun onto your now well known stack of half finished puzzles, and leap into A Kazagurama, then please indulge yourself.

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 Post subject: Re: A Kazagurama
PostPosted: Fri Feb 27, 2009 4:36 am 
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I should be able to finish the Apprentice edition of this puzzle before bed tonight. I think this must be a speed record for me! :dance:

I'll make sure I have several puzzles printed out before my trip to Italy next month. With a six-hour (each way) bus ride to and from the airport, and a nine-hour flight in each direction, I should have some time for puzzles.


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 Post subject: Re: A Kazagurama
PostPosted: Sat Feb 28, 2009 10:19 pm 
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It took me a day longer to finish this one, mainly because I made a mistake in grid 1, which fortunately didn't affect the other grids, but it definitely slowed me down.

Apprentice seems to be a good level for me right now, although, based on techniques required, I don't understand why the Journeyman level of the Christmas Shogun is giving me fits.


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 Post subject: Re: A Kazagurama
PostPosted: Sun Mar 01, 2009 5:21 pm 
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enxio27 wrote:
Apprentice seems to be a good level for me right now, although, based on techniques required, I don't understand why the Journeyman level of the Christmas Shogun is giving me fits.
Maybe it is the large number of Intersection combined with the high number of N/H-Subsets?

enxio27 wrote:
I'll make sure I have several puzzles printed out before my trip to Italy next month. With a six-hour (each way) bus ride to and from the airport, and a nine-hour flight in each direction, I should have some time for puzzles.
I wish you a nice trip.

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 Post subject: Re: A Kazagurama
PostPosted: Mon Mar 02, 2009 3:06 am 
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Børge wrote:
Maybe it is the large number of Intersection combined with the high number of N/H-Subsets?

I wouldn't think so, but I guess I couldn't say for sure. It's listed as "Hard", which should require nothing more difficult than an X-wing, although I haven't yet found any X-wings in that puzzle. My guess is that I made a mistake somewhere and just haven't discovered it yet.

I haven't found any impossibilities yet, but I'm to the point that I can't find any more moves to make on any of the grids. This is pretty much what has happened with the other puzzles I've set aside, as well. I'm not sure whether I'm just missing something easy because I've been staring at it too long, or I've made a mistake and need to start over.

Børge wrote:
I wish you a nice trip.

Thank you! It hasn't quite sunk in yet that I'm really going (this is a trip of a lifetime for me).


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 Post subject: Re: A Kazagurama
PostPosted: Mon Mar 02, 2009 2:01 pm 
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enxio27 wrote:
Børge wrote:
Maybe it is the large number of Intersection combined with the high number of N/H-Subsets?

I wouldn't think so, but I guess I couldn't say for sure. It's listed as "Hard", which should require nothing more difficult than an X-wing, although I haven't yet found any X-wings in that puzzle. My guess is that I made a mistake somewhere and just haven't discovered it yet.

I haven't found any impossibilities yet, but I'm to the point that I can't find any more moves to make on any of the grids. This is pretty much what has happened with the other puzzles I've set aside, as well. I'm not sure whether I'm just missing something easy because I've been staring at it too long, or I've made a mistake and need to start over.
Perhaps you are missing one of the required N/H-Subsets (maybe the Naked Quad like in Ruud's Clueless Special #4b).
To solve this puzzle no X-Wing is required. Only intersections and N/H-Subsets are required.

I would paste the Sudoku code into for instance JSudoku and then do single step solving (Solve > Deduce One Move = Ctrl+D) until JSduoku shows approximately what you currently have on paper, and then see what its next move is (Highlight > Next Step = S).

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