There are five difficulties to choose from.
All five puzzles have the same solution.A) Novice.
B) Apprentice (mainstream edition).
C) Master (69 Intersections, 1 Naked Pair, 3 Naked Triplets, 2 Naked Quads,
1 XYZ-Wing in g10,
1 Y-Wing in g1).
Select to view GRID numbers.D) Grand Master (78 Intersections, 4 Naked Pairs, 3 Naked Triplets, 1 Naked Quad, 1 Hidden Pair, 1 Hidden Triplet,
1 Uniqueness Test 2 in g2,
1 Uniqueness Test 1 in g2,
2 Skyscrapers: one in g2 and one in g3).
Select to view GRID numbers.In both Master level puzzles the advanced techniques are needed in 2 different grids.E) Chief Wizard.
Solvable using logic only? JSudoku needs 1 Recursively Solve, which makes 22 guesses and traverses 22222612 nodes.Regular Clueless Special #35A (Novice)Rating based on required solving techniques: Moderate
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090000407600045000000900000004000710000000004070000002100000008003006090950300040
500000002080000030076050010005000000000000070000000008210000000000048000600009004
094001000200000090000040100000000000801000000050000403700000010003050600000090520
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109000306000000000070513400020000004000000000000000509001000003008031000094200070
000600200000000030748003060290000003000000000406000070000800300007050006060007801
097000000002051030000900702910000080080000001000000300408010000050000016000083040
Regular Clueless Special #35B (Apprentice)Rating based on required solving techniques: Moderate
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000300000000000010830062040070000000006000180000000004002690050600000208040000700
090000407600045000000900000004000710000000004070000002100000008003006090950300040
500000002080000030076050010005000000003000070000000008210000000000048300600009004
004001000200000090000049100000000000801000000050000403700000010003050600000090520
008320090000006100560000030000000003020000007900000010700031000640000059003000400
109000006000000000070513400020000004040000000000000509001000080008031000094200070
000600200000000030748003060290000003000000000406000070000800300007050006060000801
097000000002051030000900702910000080080000001000000300408010000050000016000083040
Regular Clueless Special #35C (Master)Rating based on required solving techniques: Super Hard
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000000000000000010830062040070000000006000180000000004002690050600000208040000700
090000407600045000000900000004000710000000004070000002100000008003006090950300040
500000002080000030076050010005000000003000070000000008210000000000048300600009004
004001000200000090000049100000000000801000000050000403700000010003050600000090520
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109000006000000000070513400020000004000000000000000509001000000008031000094200070
000600200000000030748003060290000003000000000406000070000800300007050006060000801
007000000002051030000900702910000080080000001000000300408010000050000016000083040
Regular Clueless Special #35D (Grand Master)Rating based on required solving techniques: Ultra Hard
000800600001000004026350000000000000203000100050000003005000006010040080080020950
000300000000000010830062040070000000006000180000000004002690050600000208040000700
090000007600045000000900000004000710000000004070000002100000008003006090950300040
500000002080000030076050010005000000000000070000000008210000000000048000600009004
004001000200000090000049100000000000801000000050000403700000010003050600000090520
008320090000006100560000030000000000020000007900000010700031000640000059003000400
109000006000000000070513400020000004000000000000000509001000000008031000094200070
000600200000000030748003060290000003000000000006000070000800300007050006060007801
007000000002051030000900702910000000000000001000000300408019000050000016000083040
Regular Clueless Special #35E (Chief Wizard)7 Naked Singles
50 Hidden Singles
54 Intersections
2 Naked Pairs
1 Naked Triplets
1 Naked Quads
1 Skyscrapers
1 Turbot Fishes
1 Finned X-Wing
1 XY-Chains up to 5 links
1 XY-X-Chains
5 Grouped XY-Chains
2 Hidden Unique Rectangle
2 ALS-XZ up to 5 cells
2 ALS-XZ
1 Recursively Solve: Unique solution found with 22 guesses, 22.222.612 nodes traversed
Rating based on required solving techniques: Hellish Nightmare Solvable using logic only?
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090000007600045000000900000004000710000000004070000002100000008003006090950300040
500000002080000030076050010005000000000000070000000008210000000000048300600009004
004001000200000090000049100000000000801000000050000403700000010003050600000090520
008020090000006100560000030000000000020000007900000010700031000640000059003000400
109000006000000000070513400020000004000000000000000509001000000008031000094200070
000600200000000030748003060290000003000000000406000070000800300007050006060000801
007000000002051030000900702910000000000000001000000300408010000050000016000083040