# 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 78 for Thursday January 3, 2008, rated Tough

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

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.

004000027000000004003400806000803670000900000609000000000100000000004002800005010
039000460000207000000304000300000008000508000005040200090000070000806000706000301
530000900200000000708005400051409000000007000000000803000006000600900000080700002
000600000206000000910002004003105008000000300009307006170003005302000000000900000
002000600300000008060308090020605080000000000050903010030201050200000007005000100
000009000000000208800600094700801600002000000300205900900300076000000103000008000
200001040000003008000500000602000000000600000000708150006100804000000009009000061
604000109000704000050000030003080400000209000500000002000901000000805000097000520
040500007300400000000008000000000802000004000057802000403006900800000000790000600