# Clueless Explosion

This page offers a weekly Clueless Explosion puzzle. There are 9 Sudoku grids which must be solved according to the standard rules. The cell in the center of each box has a blue color. Together, these cells form a 10th sudoku, in the same formation you see them on your screen. Each of the 9 Sudokus adds a 3x3 box to this central Sudoku. Solving these puzzles requires a lot more patience than usual. None of these 9 puzzles can be solved independently, so you need to use the interaction with the central Sudoku. To check your results, go to the list of submissions.

Keep in mind that each of the 9 Sudokus is also a Center-Dot Sudoku, because the 9 blue cells must also contain digits 1 through 9. If you need some assistence in handling this puzzle format, you can download the Clueless Helper, a program that can open these puzzles directly from this website.

This is Clueless Explosion 30 for Thursday February 1, 2007, rated Very Hard

 2 6
 4 5 2
 3 1
 3 4
 1 3 4
 5 3
 4 6
 3 6 2
 7 4
 8 2
 6 5
 7 3
 8 6
 2 7
 2 5
 7 4
 8 4
 8 2
 3 9
 2 9 8
 9 5
 8 2
 6 8 7
 9 6
 3 9
 7 5 1
 7 5
 3 4
 6 9 3
 8 9
 7 8
 2 8 7
 8 6
 3 9
 2 3 8
 5 1
 1 3
 7 4
 4 8
 4 8
 3 6
 7 1
 2 6
 6 9
 5 1
 3 9
 8 2 5
 8 2
 9 2
 1 3 9
 3 5
 2 7
 4 7 8
 6 4
 3 5
 1 5 4
 6 7
 1 2
 8 4 3
 4 5
 9 6
 6 7 3
 4 7
 9 6
 3 5
 8 9
 9 4
 9 7
 3 5
 9 8
 6 9
 2 3
 1 8
 8 2 7
 9 2
 4 7
 8 2 1
 3 2
 1 8
 5 7 1
 5 9

These number strings represent each of the 9 constituent puzzles. You can copy each of these 9 strings and paste them in your sudoku program. This allows you to work on each of the 9 constituent puzzles on your computer. A program like SudoCue allows several instances running at the same time.

200040003000502000006000100080000070000605000020000030003000900000209000900080005
300010005000304000004000300080000020000207000060000050008000900000608000200070006
400030007000602000006000400070000080000804000040000020003000700000705000900010005
300060008000903000004000900010000040000704000030000080003000800000802000900050002
700020008000807000008000600040000070000306000080000010009000300000103000200090005
300020005000308000009000100020000050000609000060000010002000600000407000700080004
300010006000504000005000700090000080000305000060000090001000900000802000800070002
100080004000403000002000500090000030000907000040000050004000300000802000700010002
900060004000703000006000700090000020000609000080000030001000500000507000800010009

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### From the Clueless Explosion archive

 Number Date Rate 85 Thursday February 21, 2008 Tough puzzle solution 84 Thursday February 14, 2008 Tough puzzle solution 83 Thursday February 7, 2008 Tough puzzle solution 82 Thursday January 31, 2008 Very Hard puzzle solution 81 Thursday January 24, 2008 Tough puzzle solution 80 Thursday January 17, 2008 Hard puzzle solution 79 Thursday January 10, 2008 Very Hard puzzle solution 78 Thursday January 3, 2008 Tough puzzle solution 77 Thursday December 27, 2007 Hard puzzle solution 76 Thursday December 20, 2007 Tough puzzle solution 75 Thursday December 13, 2007 Hard puzzle solution 74 Thursday December 6, 2007 Tough puzzle solution 73 Thursday November 29, 2007 Moderate puzzle solution 72 Thursday November 22, 2007 Tough puzzle solution 71 Thursday November 15, 2007 Very Hard puzzle solution 70 Thursday November 8, 2007 Hard puzzle solution 69 Thursday November 1, 2007 Tough puzzle solution 68 Thursday October 25, 2007 Hard puzzle solution 67 Thursday October 18, 2007 Very Hard puzzle solution 66 Thursday October 11, 2007 Tough puzzle solution 65 Thursday October 4, 2007 Hard puzzle solution 64 Thursday September 27, 2007 Tough puzzle solution 63 Thursday September 20, 2007 Very Hard puzzle solution 62 Thursday September 13, 2007 Tough puzzle solution 61 Thursday September 6, 2007 Very Hard puzzle solution 60 Thursday August 30, 2007 Tough puzzle solution 59 Thursday August 23, 2007 Very Hard puzzle solution 58 Thursday August 16, 2007 Very Hard puzzle solution 57 Thursday August 9, 2007 Very Hard puzzle solution 56 Thursday August 2, 2007 Tough puzzle solution 55 Thursday July 26, 2007 Moderate puzzle solution 54 Thursday July 19, 2007 Tough puzzle solution 53 Thursday July 12, 2007 Very Hard puzzle solution 52 Thursday July 5, 2007 Tough puzzle solution 51 Thursday June 28, 2007 Hard puzzle solution 50 Thursday June 21, 2007 Hard puzzle solution 49 Thursday June 14, 2007 Tough puzzle solution 48 Thursday June 7, 2007 Tough puzzle solution 47 Thursday May 31, 2007 Tough puzzle solution 46 Thursday May 24, 2007 Very Hard puzzle solution 45 Thursday May 17, 2007 Very Hard puzzle solution 44 Thursday May 10, 2007 Hard puzzle solution 43 Thursday May 3, 2007 Tough puzzle solution 42 Thursday April 26, 2007 Hard puzzle solution 41 Thursday April 19, 2007 Moderate puzzle solution 40 Thursday April 12, 2007 Tough puzzle solution 39 Thursday April 5, 2007 Hard puzzle solution 38 Thursday March 29, 2007 Hard puzzle solution 37 Thursday March 22, 2007 Very Hard puzzle solution 36 Thursday March 15, 2007 Hard puzzle solution 35 Thursday March 8, 2007 Hard puzzle solution 34 Thursday March 1, 2007 Very Hard puzzle solution 33 Thursday February 22, 2007 Hard puzzle solution 32 Thursday February 15, 2007 Hard puzzle solution 31 Thursday February 8, 2007 Hard puzzle solution 30 Thursday February 1, 2007 Very Hard puzzle solution 29 Thursday January 25, 2007 Hard puzzle solution 28 Thursday January 18, 2007 Moderate puzzle solution 27 Saturday January 13, 2007 Tough puzzle solution 26 Saturday January 6, 2007 Hard puzzle solution 25 Saturday December 30, 2006 Tough puzzle solution 24 Saturday December 23, 2006 Hard puzzle solution 23 Saturday December 16, 2006 Very Hard puzzle solution 22 Saturday December 9, 2006 Tough puzzle solution 21 Saturday December 2, 2006 Very Hard puzzle solution 20 Saturday November 25, 2006 Hard puzzle solution 19 Saturday November 18, 2006 Tough puzzle solution 18 Saturday November 11, 2006 Very Hard puzzle solution 17 Saturday November 4, 2006 Hard puzzle solution 16 Saturday October 28, 2006 Tough puzzle solution 15 Saturday October 21, 2006 Hard puzzle solution 14 Saturday October 14, 2006 Moderate puzzle solution 13 Saturday October 7, 2006 Hard puzzle solution 12 Saturday September 30, 2006 Tough puzzle solution 11 Saturday September 23, 2006 Tough puzzle solution 10 Saturday September 16, 2006 Hard puzzle solution 9 Saturday September 9, 2006 Very Hard puzzle solution 8 Saturday September 2, 2006 Hard puzzle solution 7 Saturday August 26, 2006 Very Hard puzzle solution 6 Saturday August 19, 2006 Very Hard puzzle solution 5 Saturday August 12, 2006 Hard puzzle solution 4 Saturday August 5, 2006 Hard puzzle solution 3 Saturday July 29, 2006 Very Hard puzzle solution 2 Saturday July 22, 2006 Hard puzzle solution 1 Saturday July 15, 2006 Moderate puzzle solution
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