There are three difficulties to choose from.
All three puzzles have the same solution.A) Apprentice (mainstream edition).
B) Master (82 Intersections, 3 Naked Pairs, 4 Naked Triplets, 3 Naked Quads,
1 X-Wing in g2,
1 Skyscraper in g2).
Select to view GRID numbers.C) Guru (98 Intersections, 10 Naked Pairs, 5 Naked Triplets, 2 Naked Quads, 1 X-Wing, 3 Turbot Fishes, 3 Finned X-Wing, 2 Finned Swordfish, 3 XY-Wings, 1 XYZ-Wing, 2 XY-Chains up to 5 links, 1 XY-Chain).
Regular Clueless Special #8A (Apprentice)Rating based on required solving techniques: Barely Hard
100008300000040807086000200004000030700000050500000600001360700200900400000001000
500200030070000500100506709001000008700000004080000300008047600040000090010002000
020006408405700003000000000700000040090000000000000000506300004009100000000004037
000003200000800000709000030590000007000000106008000009100047800000200013903000000
000000020004200605700300000670000008050000000000000100320000900107004006000100000
000087430940005006000000008200000000005000000036000800800700309050160007000000080
800000007004058010000000600006000034200000800700000000050090008102005000080600001
000005090007000000450701002070000005936000000000000008209003084008007020000800000
070000490200030000009008003000000000701000000000000960602000010000096000040000020
Regular Clueless Special #8B (Master)Rating based on required solving techniques: Extra Hard
100008300000040807086000200004000030700000050500000600001360700200900400000001000
500000030070000500000506709001000008700000004080000300008047600045000090010002000
020006408405700003000000000700000040090000000000000000506300004009100000000004037
000003200000800000709000030590000007000000106008000009100047800000200013903000000
000000020004200605700300000670000008050000000000000100320000900107004006000100000
000087430940005006000000008200000000005000000036000800800700309050160007000000080
800000007004058010000000600006000034200000800700000000050090008102005000080600001
000005090000000000450701002070000005906000000000000000209003004008007020000800000
070000490200030000009008003000000000001000000000000960602000010000096000040000020
Regular Clueless Special #8C (Guru)Rating based on required solving techniques: Ultra Hard
100008300000040807086000200004000000700000050500000600001360700200900400000001000
500000030070000500000506709001000008700000004080000300008047600040000090010002000
020006408405700003000000000700000040090000000000000000506300004009100000000004037
000003200000800000709000030590000007000000106008000009100047800000200003903000000
000000020004200605700300000670000008050000000000000100320000900107004006000100000
000087430940005006000000008200000000005000000036000800800700309050160007000000080
800000007004058010000000600006000034200000800700000000000090008102005000080600001
000005090000000000450701002070000005906000000000000000209003004008007020000800000
070000490200030000009008003000000000001000000000000960602000010000096000040000020
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