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Regular Samurai #39
http://www.rcbroughton.co.uk/sudoku/forum/viewtopic.php?f=16&t=383		 Page 1 of 1
Author:  Børge [ Mon Jan 19, 2009 8:21 pm ]
Post subject:  Regular Samurai #39
There are four puzzles and three difficulties to choose from.
All four puzzles have the same solution.

A) Novice.
B) Apprentice-1 (mainstream edition).
C) Apprentice-2.
D) Master (29 Intersections, 2 Naked Pairs, 2 Naked Triplets, 1 XY-Wing in g3, 1 Empty Rectangle in g4). Select to view GRID numbers.
The advanced techniques are needed in 2 different grids.



Regular Samurai #39A (Novice)

Rating based on required solving techniques:  Moderate

Image

010800072700000000060090010003000009050006000020004050000000000908000000000720000
020130000006000000700000920010000006000409070040060309000800000000600040000200010
000007000000084000000005000060470150000009680040000000000000000000023000000908000
002007000000000000700039000000500023090800000503700090100050000006000570080006000
000000009000000071000200000000000000650078300000009060000000087007903002080000400



Regular Samurai #39B (Apprentice-1)

Rating based on required solving techniques:  Tough

Image

000860902700000000060000010003070009050006001020004050000009005908000000000720000
020130000006000000700000920010000006000009070040060309000800000000600240000200010
005007000000080000000005000008470150000000680040000000000000800000023000600008000
002087000000000000700009600000500023090800000003000090100250000006000070080006000
800000009000000071000200000000000000650078320000009060000000087007903000080000400



Regular Samurai #39C (Apprentice-2)

Rating based on required solving techniques:  Hard

Image

010800072700000000060090010003000009050006000020004050000000000908000000000720000
020130000006000000700000920010000006000409070040060309000800000000600040000200010
000007000000084000000005000060400050000009680040000000000000000000023000000908000
002007000000000000700039000000500023090800000503700090100050000006000570080006000
000000009000000071000200000000000000650078300000009060000000087007903002080000400



Regular Samurai #39D (Master)

Rating based on required solving techniques:  Super Hard

Image

010800072700000000060090010003000009050006000020004050000000000908000000000720000
020130000006000000700000920000000006000409070040060309000800000000600040000200010
000007000000084000000005000068000150000009680040000000000000000000023000000908000
002007000000000000700039000000500023090800000503700090100050000006000570080006000
000000009000000071000200000200000000650078300000009060000000087007903002080000400
Author:  jsmif [ Wed Jan 21, 2009 3:01 am ]
Post subject:  Re: Regular Samurai #39
The empty rectangle nearly scared me away from trying the Master level puzzle this time -- I've never spotted one in the wild and I'm not very close to being able to -- but I tried it anyway. Fortunately, there is an alternate solving path using
Hidden Text:
a Uniqueness Test 1 followed by a Skyscraper, both in g4,
which is much easier (imho) to find!
Author:  Børge [ Wed Jan 21, 2009 9:28 pm ]
Post subject:  Re: Regular Samurai #39
Great work jsmif :applause:
But you did need the XY-Wing I presume?

BTW: Regular Clueless Explosion #39 will NOT be ready before tomorrow.
Sorry about that.
Author:  jsmif [ Sat Jan 24, 2009 6:00 pm ]
Post subject:  Re: Regular Samurai #39
Quote:
But you did need the XY-Wing I presume?


Yep, there's no avoiding that!
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