There are six difficulties to choose from.
All six puzzles have the same solution.A) Novice.
B) Apprentice (mainstream edition).
C)
Grand Master (31 Intersections, 3 Naked Pairs, 1 Naked Triplet, 1 Naked Quad, 1 Swordfish, 1 Skyscraper, 1 Two String Kite, 1 Empty Rectangle, 2 XY-Chains up to 5 links).
Select to view GRID numbers.Each of the 5 techniques Swordfish, Skyscraper, Two String Kite, Empty Rectangle and XY-Chain is required in a different 9x9 grid.D) Guru (28 Intersections, 5 Naked Pairs, 3 Naked Triplets, 2 X-Wing, 3 Two String Kites, 1 Empty Rectangle, 1 Finned X-Wing, 1 Finned Swordfish, 3 XY-Wings, 1 XYZ-Wing, 2 Y-Wings, 1 Uniqueness Test 3, 3 XY-Chains up to 5 links, 6 XY-X-Chains up to 3 links).
E) Wizard.
ALS is not required!F) Chief Wizard.
Solvable using logic only? JSudoku needs 1 Recursively Solve, which makes 11 guesses and traverses 1668 nodes.Regular Samurai #13A (Novice)Rating based on required solving techniques: Moderate
400002000000005071700000800000940000030000010020070300060500000009010000001009000
068005000001070643000020000400000080002001000000560010000000400000700001007400209
000003000000201000000000007000010000700400800080079001000900000006000000002006010
000030000000000006830001002000007040070004100001002003015290030007060004080000900
000000900000007000010400002900000010000080500006700400070000390020905060400630020
Regular Samurai #13B (Apprentice)Rating based on required solving techniques: Barely Hard
400080900002000071700000800000940000030000014020000300060507000209010000001009000
060005000001000643000020000400000080002001000003560010000010470000700001000400209
000003000000001000000000000004010070700400800080079001000900000000000000000006000
020030000000000000830001000200007040000604100001002003015290000007000004000000900
000008900000007000000000052000300010000000500006700400070000390020905060400630020
Regular Samurai #13C (Grand Master)Rating based on required solving techniques: Ultra Hard
400002000000005071700000800000940000030000010020070300060500000009010000001009000
068005000001070643000020000400000080002001000000560010000000400000700001007400200
000003000000201000000000007000000000700400800080079001050000060000000000000006000
000030050000000000830001000000007040070004100001002003015090030007060004080000900
060008900000007000000400002900000010000080500106700400070000390020905060400630020
Regular Samurai #13D (Guru)Rating based on required solving techniques: Really Ultra Hard
400002000000005071700000800000940000030000010020070300060500000009010000001009000
068005000001070643000020000400000000002001000000560010000000400000700001007400200
000003000000201000000000007000000000700400800080079001000900000006000000002006010
000030000000000006830001002000007040070004100001002003015090030007060004080000900
000008900000007000010400002000000010000080500106700400070000390020905060400630020
Regular Samurai #13E (Wizard)Rating based on required solving techniques: Cosy Nightmare ALS is not required!
400080900002000071700000800000940000030000010020000300060507000200010000001009000
060005000001000643000000000400000080002001000003560010000010470000700001000400209
000003000000201000000000000004010000700400800080079001000007000000000000000006000
020030000000000000830001000200007040000604100001002003015090000007000004000000900
000008900000007000000000052000300010000000500006700400070000390020905060400630020
Regular Samurai #13F (Chief Wizard)Rating based on required solving techniques: Hellish Nightmare Solvable using logic only?
400080900002000071700000800000940000030000010020000300060507000200010000001009000
060005000001000643000000000400000080002001000003560010000010470000700001000400209
000003000000001000000000000000010000700400800080079001000907000000000000000006000
020030000000000000830001000200007040000604100001002003015090000007000004000000900
000008900000007000000000052000300010000000500006700400070000390020905060400630020
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