There are five puzzles and four difficulties to choose from.
All five puzzles have the same solution.A) Novice.
B) Apprentice (mainstream edition).
C) Master-1 (1 Skyscraper).
D) Master-2 (1 XY-Chain).
E) Guru.
Regular Clueless Special #4A (Novice)Rating based on required solving techniques: Moderate
000080000050000078700060904290000005100000000000000007009008006400007051067030400
710000409000000000200580006008000093000000800100000000000903000650010034000000000
000000060030800001200460700001000024300000080002000000000000915610072000040000000
800603004010090603000000879040000050307000000000000700650000090090004030000030000
700600008090004026006097100067000000050000600100000900304060009870901400000000000
000004600230700000060000095750000000100000000000000249000500831020609500548000000
000900630006103580071005000102000000900000024000000096003450960020000400600080300
000070000058069700907800500100000089095000030006000070604700001001030206020000000
009000080040309150070408000700000060003000800080000005600590070030000006001000000
Regular Clueless Special #4B (Apprentice)Rating based on required solving techniques: Moderate
000080000050000078700060904290000000100000000000000007009008006400000051067030400
710000409000000000200580006008000093000000800100000000000903000650010034000000000
000000060030800001200400700000000024300000080002000000000000015610072000040000000
800003004010090603000000879040000050307000000000000700650000090090004000000030000
700600008090004026006097100067000000050000000100000900000060009870901400000000000
000004600230700000060000095750000000100000000000000249000500801020609500548000000
000900030006103580071000000102000000900000024000000006000450960000000000600080300
000070000008069700907800500100000009005000030006000070004700001001030206020000000
000000080040309100070408000000000060003000800080000005600590070030000006001000000
Regular Clueless Special #4C (Master-1)Rating based on required solving techniques: Barely Extra Hard
000080000050000078700060904290000000100000000000000007009008006400000051067030400
710000409000000000200580006008000093000000800100000000000903000650010034000000000
000000060030800001200400700000000024300000080002000000000000015610072000040000000
800003004010090603000000879040000050307000000000000700650000090090004000000030000
700600008090004026006097100007000000050000000100000900000060009870901400000000000
000004600230700000060000095050000000100000000000000249000500801020609500548000000
000900030006103580071000000102000000900000024000000006000450960000000000600080300
000070000008069700907800500100000089005000030006000070004700001001030206020000000
000000080040309100070408000000000060003000800080000005600590070030000006001000000
Regular Clueless Special #4D (Master-2)Rating based on required solving techniques: Barely Ultra Hard
000000000050000078700060904290000000100000000000000007009008006400000051067030400
710000409000000000200580006008000093000000800100000000000903000650010034000000000
000000060030800001200400700000000024300000080002000000000000015610072000040000000
800003004010090603000000879040000050307000000000000700650000090090004000000030000
700600008090004026006097100067000000050000000100000900000060009870901400000000000
000004600230700000060000095050000000100000000000000249000000801020609500548000000
000900030006103580071000000102000000900000024000000006000450960000000000600080300
000070000008069700907800500100000089005000030006000070004700001001030206020000000
000000080040309100070408000000000060003000800080000005600590070030000006001000000
Regular Clueless Special #4E (Guru)Rating based on required solving techniques: Ultra Hard
000080000050000078700060904290000000100000000000000007009008006400000051067030400
710000409000000000200580006008000093000000800100000000000903000650010034000000000
000000060030800001200400700000000024300000080002000000000000015610072000040000000
800003004010090603000000879040000050307000000000000700650000090090004000000030000
700000008090004026006097100067000000050000000100000900004060009870901400000000000
000004000230700000060000095750000000100000000000000249000500801020609500548000000
000900030006103580071000000102000000900000024000000006000450960000000000600080300
000070000008069700907800500100000009095000030006000070004700001001030206020000000
000000080040309100070408000000000060003000800080000005600590070030000006001000000
_________________
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