SudokuSolver Forum

There are three difficulties to choose from.
All three puzzles have the same solution.

The difficulty levels explained     The ratings explained

A) Novice.
B) Apprentice (mainstream edition).
C) Grand Master (60 Intersection, 4 Naked Pair, 3 Naked Triplet, 1 Hidden Triplet, 1 Intergrid Skyscraper on 4 in g3 and g10, 1 Intergrid Empty Rectangle on 4 in g4 and g10). Select to view details.
The advanced techniques are needed in 2-3 different grids.
This is a difficult puzzle, while both required advanced techniques are intergrid and are needed very early. You are hereby warned.

   A very vauge hint:

   A mini-mini Walktrough:

Regular Clueless Explosion #45A (Novice)

Rating based on required solving techniques:  Moderate

200000030006003000000027050800005000000008000040000700082000004000700501950600800
100800000000007000009010034000005000400000500007030860080000000000000206020700090
000000400900000000106304007000000009300000000020000060005000000000000308400089000
050000040002000000000074006000002000900000200200000600000006002300100700090050004
000040000400000002000500700000300000008700100901000000050000800000000000000403015
000040000003000001600002000050600030000003000006010028000009000009200400170004003
300000070200000000009048602000060400000000200080903000100600000000009000900000007
000007004100000900600130000000071000000000006400000000080000100200008300003009005
000070000700006000004200080000007090000000000019020030000300100000900000920000050



Regular Clueless Explosion #45B (Apprentice)

Rating based on required solving techniques:  Hard

200000030006003000000027000800005000000008000040000700082000004000700501950600800
100800000000007000009010034000005000000000500007030860080000000000000206020700090
000000400900000000106304007000000009300000000020500060005000000000000308400089000
050000040002000000000074006000002000900000200200000600000006002300100700090050004
070040000400000002000500700000300000008700100901000000050000800000000000000403015
000040000003000001600002000050600030000003000006010028000009000009200400170004003
300000070200000000009048602000060400000000200080903000000600000000009000900000007
000007004100000900600130000000071000000000006407000000080000100200008300003009005
000070000700006000004200080000007090000000200019020030000000100000900000920000050



Regular Clueless Explosion 45C (Grand Master)

Rating based on required solving techniques:  Absolutely Extra Hard

200000030006003000000027000800005000000000000040000700002000004000700501950600800
100800000000007000009010034000005000000000500007030860080000000000000206020700090
000000400900000000106304007000000009300000000020500060005000000000000308400089000
050000040002000000000074006000002000900000200200000600000006000300100700090050004
070040000400000002000500700000300000008700100901000000050000800000000000000403015
000040000003000001600002000050600030000003000006010028000009000009200400170004003
300000070200000000009048602000060400000000200080903000000600000000009000900000007
000007004100000900600030000000071000000000006400000020080000100200008300003009005
000070000700006000004200080000007090000000200019020030000000100000900000920000050

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