species populations countries
2006
2007
2008
2009
2010
2011
2012
Cambodia
Indonesia
Kosovo
Norway
Oman
Poland
Tanzania
175
245
315
385
420
490
525


       Hint        Start Over

Get hints for a different puzzle!

How to Get Hints

A copy of your puzzle's grid is shown on the left. Copy over your current grid state from the book into the grid on the left by clicking once in a square to make an 'X' or twice to make an 'O'. Once you have your current grid state represented here, you can click the 'Hint' button below the grid. This will (1) remove any errors in your current grid state and (2) offer a suggestion as to where the next logical deduction can be made. You can request unlimited hints.

Puzzle #71

This grid will auto-populate with all the true relationships you've created on the top 7 rows on the grid.


Years Species Populations Countries
2006
2007
2008
2009
2010
2011
2012