There are four difficulties to choose from.
All four puzzles have the same solution.A) Novice
B) Apprentice (mainstream edition).
C) Master (22 Intersections, 3 Naked Pairs, 1 Naked Triplet, 4 Naked Quads,
1 X-Wing in g1,
1 Two String Kite in g4,
1 Finned X-Wing in g3,
1 Uniqueness Test 1 in g2).
Select to view GRID numbers.
If you spot the Uniqueness Test 1 first, the 3 other advanced techniques become superfluous!
Otherwise each of the 4 techniques X-Wing, Two String Kite, Finned X-Wing and Uniqueness Test 1 is required in a different 9x9 grid.D) Guru (24 Intersections, 3 Naked Pairs, 1 Hidden Pair, 1 Two String Kite, 1 Turbot Fish, 1 Finned X-Wing, 2 Finned Swordfish, 2 Uniqueness Test 1, 1 XY-Wing, 2 XYZ-Wings).
Regular Samurai #17A (Novice)Rating based on required solving techniques: Moderate
000400000010005000000028035000031400807060000040700008000000000004000080103006004
780050000000000238000020000000001000000030092209008060000600000070300005000000040
000090000080040070004000000000008004000200890039000001000007600000600000700000000
000240000010500000003008700005000001001604050200000800000087000870000002100002300
600705000000000000000400600090500007008000100500006200000000003030204080000800402
Regular Samurai #17B (Apprentice)Rating based on required solving techniques: Tough
My personal rating based on actual solving: Moderate
000400000010005000009020030000031400800060010040700008080000000000000000003006070
700450000090000238000020000005001000000030092200008060020600000006000005000000040
000090020000040006070000000200008004000200090039004001000307000000600000000000000
600200000000500000003008000005000001001604050000000800030087000870000002100002300
000705000000000804000400600090500007008070100500006208020000003030204080000000400
Regular Samurai #17C (Master)Rating based on required solving techniques: Barely Super Hard
My personal rating based on actual solving: Extra Hard
000400000000005000000028135000031400807060010000700000080003050004000000103006070
700450000000000038000020000005001000000030092209008060020600000070000005000070040
050090020000040070070000000200000004000200000039000001000307040000600010060000080
600200000000500000000008060005020001001604000000000800030087000870000002100000300
040705000010000804080400600090500007008000100500006000800000003030204000000000400
Regular Samurai #17D (Guru)Rating based on required solving techniques: Super Hard
000400000010005000000028035000031400807060000040700008000000000004000080103006004
780050000000000238000020000000001000000030092209008060008600000070300005000000040
000000008080040070004000000000008004000200890039000001000007600000600000700000000
000240000010500000003008700005000001001604050200000800000087000870000002100002300
600705000000000000000400600090500007008000100500006200000000003030204080000800402
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