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Børge
PostPosted: Fri Sep 12, 2008 8:39 am 
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Posts: 868
There are four difficulties to choose from.
All four puzzles have the same solution.

A) Novice.
B) Apprentice (mainstream edition).
C) Master (62 Intersections, 7 Naked Pairs, 3 Naked Triplets, 1 Naked Quad, 2 Uniqueness Test 1: one in g4 and one in g5). Select to view GRID numbers.
D) Grand Master (61 Intersections, 4 Naked Pairs, 2 Naked Triplets, 2 Naked Quads, 1 Hidden Pair, 1 Skyscraper in g2, 1 Two String Kite in g9, 1 Finned Swordfish in g1, 1 Finned Jellyfish in g10, 1 Uniqueness Test 1 in g4, 1 XYZ-Wing in g3, 1 intergrid XY-Chain up to 5 links in g4 and g10). Select to view GRID numbers.
The 7 advanced techniques are needed in 6 different grids.



Regular Clueless Special #20A (Novice)

Rating based on required solving techniques:  Moderate

Image

000000000940050060000900508204000009007000003000000040000001000010260070050007082
406009000000700604038000070000000100000000063092000000000900000000000840013058006
000650000009000100041300000006000009080000010000000200000000000000100690507040000
430000080000023500070000203000000000900000000700000010005000008090730004600002000
000000050000907000680000100250000000700000908001000000000500010000036800065002070
003400071810000000070930068000000020084000000200000400000700004706000050000008000
008000001000001000005098020003000900070000060401000300000003100080400053054000000
000000000080001400340000005005000083000000000006000740000100006100090030090006002
070840090600000000000010608206000000000000000001000300003000450000074001040500000



Regular Clueless Special #20B (Apprentice)

Rating based on required solving techniques:  Moderate

Image

070000000940000060000900508000000009007000003000000040000000000010260070050007082
406009000000700604038000070000000100000000063092000000000900000000000840013058006
000650000009000100041300000006000009080000010000000200000000000000100690507040000
430000080000023500070000203000000000900000000700000010005000008090730004600002000
000000050000907000680000100250000000700000908001000000000500010000036800065002070
003400071810000000070930068000000020084000000200000400000700004706000050000008000
008000001000001000005098020003000900070000060401000300000003100080400053054000000
000000000080001400340000005005000083007000000006000740000000006100090030090006002
070840090600000000000010608206000000000000000001000300003000450000074001040500000



Regular Clueless Special #20C (Master)

Rating based on required solving techniques:  Super Hard

Image

070000000940000060000900508000000009007000003000000040000001000010260070050007082
406009000000700604038000070000000100000000063092000000000000000000000840013058006
000650000009000100041300000006000009080000010000000200000000000000100690507040000
430000080000623500070000203000000070900000000700000010005000008090730004600002000
000000050000907000680000100250000000700000908001000000000500010000036800065002070
003400071810000000070930068000000020084000000200000400000700004706000050000008000
008000001000001000005098020003000900070000060401000300000003100080400053054000000
000000000080001400340000005005000083007000000006000740000000006100090030090006002
070840090600000000000010608206000000000000000001000300003000450000074001040500000



Regular Clueless Special #20D (Grand Master)

Rating based on required solving techniques:  Ultra Hard

Image

070000000940000060000900508004000009007000003000000040000001000010260070050007082
406009000000700604038000070000000100000000063092000000000000000000000840013058006
000650000009000000041300000006000009080000010000000200000000000000100690507040000
430000080000623500070000203000000070900000000700000010005000008090730004600002000
000000050000907000680000100250000000700000908001000000000500010000036800065002070
003400071810000000070930068000000020084000000200000400000700004706000050000008000
008000001000001000005098020003000900070000060401000300000003100080400053054000000
000000000080001400340000005005000083007000000006000740000000006100090030090006002
070840090600000000000010608206000000000000000001000300003000450000074001040500000

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enxio27
PostPosted: Fri Sep 12, 2008 9:15 pm 
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I'm hoping to get a couple of Dutch Clueless fans (from Sudocue) over here to try these out.
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Børge
PostPosted: Sat Sep 13, 2008 1:18 pm 
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enxio27 wrote:
I'm hoping to get a couple of Dutch Clueless fans (from Sudocue) over here to try these out.
GREAT :cheers: :thumbs: :applause:

This week's Master and Grand Master are real tough ones.
Hopefully even Glyn will have some minor difficulties.
Hidden Text:
For the Master both Uniqueness Test 1 are required very early on during the solving. When required only 16 cells are solved in the Clueless grid making it hard to verify if a potential Unique Rectangle is deadly and independent of the Clueless grid.

The Grand Master is of course even worse. Only 10 and 11 cells are solved in the Clueless Grid when 6 of the 7 advanced techniques are required.

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