The rules are:

1. Draw two circles (O) in the empty cells in every row and column.
2. The numbers in the black cells indicate the space between the 2 circles in the black cells' row or column, in either order.
3. Black cells also count as spaces.






  • 2
    $\begingroup$ So in every row and column exactly two cells need to be marked by an O, and the given numbers indicate the distance between the two O's in that row and that column in either order. $\endgroup$ – Jaap Scherphuis Mar 4 '19 at 12:08
  • 2
    $\begingroup$ Nice puzzle, some ideas for improvements: That the clues can be in either order should be highlighted. You give two examples but both use the first number for rows and the second for columns (In your example all clues are row first, column second). It might help to put the clues in a consistent order, for example always lowest to highest. $\endgroup$ – w l Mar 4 '19 at 15:43

I think that this might work...


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