There are seven difficulties to choose from.
All seven puzzles have the same solution.A) Novice.
B) Apprentice (mainstream edition).
C)
Grand Master (74 Intersections, 5 Naked Pairs, 5 Naked Triplets, 3 Naked Quads, 2 Hidden Pairs,
3 Skyscrapers: one in g5,
one in g8 and one in g9,
3 Two String Kites: one in g1,
one in g2 and one in g7).
Select to view GRID numbers.The 3 Skyscrapers and the 3 Kites are in 6 DIFFERENT grids.D) Junior Guru (93 Intersections, 9 Naked Pairs, 3 Naked Triplets, 5 Naked Quads, 3 Hidden Pairs, 2 X-Wing, 4 Skyscrapers, 6 Two String Kites, 4 Empty Rectangles, 3 Turbot Fishes, 1 Finned Swordfish, 1 Grouped X-Wing, 3 Grouped Turbot Fishes, 2 Uniqueness Test 1).
E) Guru (74 Intersections, 4 Naked Pairs, 4 Naked Triplets, 5 Naked Quads, 2 Hidden Pairs, 1 X-Wing, 3 Skyscrapers, 5 Two String Kites, 5 Empty Rectangles, 1 Finned X-Wing, 3 Grouped X-Wing, 3 Grouped Turbot Fishes, 1 Uniqueness Test 1, 1 Y-Wing, 1 Uniqueness Test 4).
F) Wizard.
G) Chief Wizard.
Solvable using logic only? JSudoku needs 1 Recursively Solve, which makes 19 guesses and traverses 5427 nodes.Regular Clueless Explosion #13A (Novice)Rating based on required solving techniques: Moderate
000050600000000400400900001000000300805000009000092000000100000507800006001009008
000000010000000008010375000008090600000000000400000020700002003000700000100506004
000000010006000300000019007000700800009006000600008000020600000800001000053000004
006000002000000000002760000000085000000000100000003948000006084000000000503007010
005060008000001000003000017000700040300000005700000003802000000000004000000670004
000003069300000000000005000004020000006000000009010604000900000800000000605074002
006070300000000000030006001024100000000000109000700030000350060100008400002000000
000403070400000000008001050000010000100000200007304900000006000000008004054000600
000090007000000004010406020000000080400002000006000502000000709003009000007100000
Regular Clueless Explosion #13B (Apprentice)Rating based on required solving techniques: Moderate
000050600000000400400900001000000300805000009000092000000000000507800006001009008
000000010000000008010375000008090600000000000400000020700002003000700000100506004
000000010006000300000019007000700800009006000600008000020600000800001000053000074
006000002000000000002700000000085000000000100000003948000006084000000000503007010
005060008000001000003000017000700040300000005700000003802000000000004000000670004
000003069300000000000005000004020000000000000009010604000900000800000000605074002
006070300000000000030006000024100000000000109000700030000350060100008400002000000
000403070400000000008001050000010000100000200007304900000006000000008004054000600
000090007000000004010406020200000080400002000006000502000000009003009000007100000
Regular Clueless Explosion #13C (Grand Master)Rating based on required solving techniques: Extra Hard
700000600000000400450900001002000300805000009000002000000100000000800000001009008
000000010000000008800075000028003600000000000400000020700002003003700000100500004
400000010006000300000019000000700806009000000600008000020630000800001200003000074
056000002000000000000700000700085000000000100100003948200036084000000000000000000
005060008200900000003000007000780040008000005000000003802000070000004000900600000
002003069000001005000005000000020000000000000009310600000900000800000007605004800
006470300200000000030000000024005000700000100000700030080350000100008400002000000
000003070400000000000001050000017000100000200007300900001000300000008004054000600
000090007700000004010406020000000080000500000006000002800000700003009000000100000
Regular Clueless Explosion #13D (Junior Guru)Rating based on required solving techniques: Super Hard
700000600000000000450900001002000300805000009000002000000100000000800000001009008
000000010000000008800075000028003600000000000400000020700002003003700000100500004
400000010006000300000019000000700806009000000600000000020630000800001200003000074
056000002000000000000700000700085000000000100100003948200036084000000000000000000
005060008200900000003000007000780040008000005000000003802000070000004000900600000
000003069000001005000005000000020000000000000009310600000900000800000007605004800
006470300200000000030000000024005000700000100000700030080350000100008400002000000
000003070400000000000001050000007000100000200007300900000000300000008000054000600
000090007700000000010406020000000080000500000006000002800000700003009000000100000
Regular Clueless Explosion #13E (Guru)Rating based on required solving techniques: Ultra Hard
700000600000000000450900001002000300805000009000002000000100000000800000001009008
000000010000000008800075000028003600000000000400000020700002003003700000100500004
400000010006000300000019000000700806009000000600000000020630000800001200003000074
056000002000000000000700000700085000000000100100003948200036084000000000000000000
005060008200900000003000007000780040008000005000000003802000070000004000900600000
000003069000001005000005000000020000000000000009010600000900000800000007605004800
006470300200000000030000000024005000700000100000700030080350000100008400002000000
000003070400000000000001050000007000100000200007300900000000300000008000054000600
000090007700000000010406020000000080000500000006000002800000700003009000000100000
Regular Clueless Explosion #13F (Wizard)Rating based on required solving techniques: Nightmare
000050600000000400400900001000000000805000009000092000000000000507800006001009008
000000010000000008010375000008090600000000000400000020700002003000700000100506004
000000010006000300000019007000700000009006000600008000020600000800001000053000004
006000002000000000002700000000085000000000100000003948000006084000000000503007010
005060008000000000003000017000000040300000005700000003802000600000004000000670004
000003009300000000000005000004020000000000000009010604000900000800000000605074002
006070300000000000030006000024100000000000109000700030000350060100008400002000000
000003000400000000008001050000010000100000200007304900000006000000008004054000600
000090007000000004010406020000000080400002000006000502000000009003009000007100000
Regular Clueless Explosion #13G (Chief Wizard)Rating based on required solving techniques: Hellish Nightmare Solvable using logic only?
700000600000000400450900001002000300805000009000002000000100000000800000001009008
000000010000000008800075000028003600000000000400000020700002003003700000100500004
400000010006000300000019000000700806009000000600008000020630000800001200003000074
056000002000000000000700000700085000000000100100003948200036084000000000000000000
005060008200900000003000007000780040008000005000000003802000070000004000900600000
002003069000001005000005000000000000000000000009310600000900000800000007605004800
006470300200000000030000000024005000700000100000700030080350000100008400002000000
000003070400000000000001050000007000100000200007300900001000300000008000054000600
000090007700000000010406020000000080000500000006000002800000700003009000000100000