There are three difficulties to choose from.
All three puzzles have the same solution.A) Apprentice (mainstream edition).
B) Master (94 Intersections, 3 Naked Pairs, 5 Naked Triplets, 8 Naked Quads, 2 Hidden Pairs, 1 X-Wing, 1 XY-Wing).
C) Guru (102 Intersections, 7 Naked Pairs, 1 Naked Triplet, 5 Naked Quads, 1 X-Wing, 4 Turbot Fishes, 1 Finned Swordfish, 1 Finned Jellyfish, 1 Grouped X-Wing, 4 Grouped Turbot Fishes, 2 XY-Wings).
Regular Clueless Explosion #5A (Apprentice)Rating based on required solving techniques: Hard
009002000800000006000000209000000000006000003000007500100980050005000400000060000
000085000800002000520000094000000007004007000000000600000003001000900700091600000
006010005000000000800000920000020000002005004050004010003060400000200700000000000
000300000000000400010908000000002004000000100400000009000800640200000000603000000
003000400000000208000020000009000007000300001070100090600008003107000000000050000
000008040000000000004170060000006000006009400705400001200304800001000000000000000
000000000300000000009002063000010020600000000001830400004370802000000000080000000
000800000600000000000410802500001000100002003000090020030000009700000000020900500
000600000000000008842000600007800409400005000000009005090000000000100000200050070
Regular Clueless Explosion #5B (Master)Rating based on required solving techniques: Barely Super Hard
009002000800000006000000209000000000006000003000007500100980050005000400000060000
000085000800002000520000094000000007004007000000000600000003001000900700091600000
006010005000000000800000920000000000002005004050004010073060400000200700000000000
000300000000000400010908000000002004000000100400000009000800640200000000603000000
003000400000000208000020000009000007000300001070100090600008003107000000000050000
000008040000000000004170060000006000006009400705400001200304800001000000000000000
000060000300000000009002063000010000600000000001830400004370802000000000080000000
000800000600000000000410802500001000100002003000090020030000009700000000020900500
000600000000000008842000600007800409400005000000009005090000000000100000200050070
Regular Clueless Explosion #5C (Guru)Rating based on required solving techniques: Super Hard
009002000800000006000000209000000000006000003000007500100980050005000400000060000
000085000800002000520000094000000007004007000000000600000003001000900700091600000
006010005000000000800000920000000000002005004050004010003060400000200700000000000
000300000000000400010908000000002004000000100400000009000800640200000000603000000
003000400000000208000020000009000007000300001070100090600008003107000000000050000
000008000000000000004170060000006000006009400705400001200304800001000000000000000
000000000300000000009002063000010000600000000001830400004370802000000000080000000
000800000600000000000410802500001000100002003000090020030000009700000000020900500
000600000000000008842000600007800409400005000000009005090000000000100000200050070
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