# 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 71 for Thursday November 15, 2007, rated Very Hard

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

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.

570000106000000000108000300000008000009200600003600000001802009000000003050003200
000000006009000003008000200000900060305000100807405000700601300000008000900004000
003000007000002000800000600060020809300800000000500040600310900000000003008900000
803000007200700900007050000000300680000006003000000000001900800000000500609010030
560000400000100000000000320050200009000506000800001050031000000000009000008000043
050090807004000000009007500000000000300500000021009000000010700008003002500000908
000008400700000000006079008020005000000007006507090030001000005000900000900000800
000500009000300000003108002000209401009000805040003000001000700700000600900000000
005300060800000000300507200000001700006009400000600000003000907000000000907000023