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.

Less than 10 hours till Clueless Explosion number 787!

This is Clueless Explosion 9 for Saturday September 9, 2006, rated Very Hard

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

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.

006003040300000500080500009600080100000401000009060003200008090004000001050900600
003006080400000100060700003900030700000108000006020004500003090002000008090800200
003006080200000900090700006100060800000504000002070005900007050005000001020300400
008004010200000800040800002400010700000709000007060009900001050004000008020900300
005006010900000500010400007500090100000203000009070008400007090007000002080900700
008003010300000400050900006600080500000504000004090007100002070009000002030600100
009003070800000200010900003300040900000201000001030002200006010006000009090400600
008004060600000300070300009500080900000705000007090001700008010005000004020500800
005004080700000600080300002800030100000701000009020003600007030008000001090800200