All sudoku puzzles in this forum post are the intellectual property of Børge Alexander Tetlie Anderssen.
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There are four puzzles and three difficulties to choose from.
RCE #64D are more difficult than RCE #64C, which is easier than the average RCE Master puzzle.All four puzzles have the same solution.The difficulty levels explained The ratings explained
A) Novice.
B) Apprentice (mainstream edition).
C) Master-1 (84 Intersection, 6 Naked Pair,
1 XY-Wing on 7 with pivot {12} in g4, 1 Skyscraper on 1 in g7).
Select to view details.The advanced techniques are needed in 2 different grids.D) Master-2 (46 Intersection, 5 Naked Pair,
2 Y-Wing: one on 9 with {79} pincers in g8 and one on 4 with {49} pincers in g8, 1 Skyscraper on 1 in g7).
Select to view details.The advanced techniques are needed in 2 different grids.Regular Clueless Explosion #64A (Novice)Rating based on required solving techniques: Moderate
000003000000000004710006002078000000100800000000109800000000000000000000350907100
003200000000001000680000410000108070000000000800070000060000000007800000000500009
000004001900000000010003060037000000000000602060200004500086000000000008008000200
000000008000700600009405000000000000100900000004030106700100000000000901091080020
100000600000000100700060008000002400000000000927300000003008020000000007004001000
000000070000607005206050000020301000100000002000004010500000098000000000490102000
000300000006000700008005000800000000500900302060040590900000000000000004000064009
080400000009000000000205094030000600000006100100040008000002000502800300007030050
000700004000003200700090000000000000000204008010030040000080000000006300090000520
Regular Clueless Explosion #64B (Apprentice)Rating based on required solving techniques: Moderate
800003001000000004000000002070000000000800000000109800400000000000000000350907100
003200000000001000680000410054100900000000000800070000000009000007800000000500029
006804001900000000000000060000000000000000600060208004500000090000007008008000206
400000008000000600809005000030050000100000000004030106700109000000000901090000020
100000000000000100700060008000092403000000000027300800003008501000000000000031000
000000070000600000206050001820001000000000002000004000500000098000000000490102000
000300000006800000008005000800600000000900302060040500905000000000000004000064009
081400000000000000000005094000100600008006100100040008000002000002800300007030050
000700004000003200740090000200000000000204008010000040300080000000006300090000520
Regular Clueless Explosion 64C (Master-1)Rating based on required solving techniques: Super Hard
000003000000000004710006002078000000100800000000109800000000000000000000350907100
003200000000001000680000410000128070000000000800070000060000000007800000000500109
000004001900000000010003060037000000000000602060200004500086000000000008008000200
000000008000700600009405000000000000100900000004030106700000000000000901091080020
100000000000000100700060008000002400000000000927300000003008020000000007004031000
000000070000607000206050000020300000100000002000004010500000008000000000400102000
000300000006000000008005000800000000500900302060040590900000000000000004000064009
080400000009000000000205094030000600000006000100040008000002000002800300007030050
000700004000003200700090000000000000000204008010030040000080000000006300090000520
Regular Clueless Explosion 64D (Master-2)Rating based on required solving techniques: Super Hard
000003000000000004710006002078000000100800000000109800000000000000000000350907100
003200000000001000680000410000108070000000000800070000060000000007800000000500009
000004001900000000010003060007000000000000602060200004500086000000000008008000200
000000008000700600009405000000000000100900000004030106700100000000000901091080020
100000000000000100700060008000002400000000000927300000003008020000000007004001000
000000070000607005206050000020300000100000002000004010500000008000000000400102000
000300000006000000008005000800000000500900302060040590900000000000000004000064009
080400000009000000000205094030000600000006100100040008000002000502800300007030050
000700004000003200700090000000000000000204008010030040000080000000006300090000520
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