3-D Fox hunting 1.01

This is a well known logic game. The goal of the game is to find all the foxes for the minimum number of steps and the shortest period of time.
The playfield is divided into cells and may have from 3 to 10 vertical and horizontal lines. The maximum amount of hidden foxes is up to 10, and it's amount depends on the size of the field and the chosen level of difficulty.
You can check any cell by clicking the left mouse button. The flag with a digit which appears in the cell indicates the number of the foxes placed at all the horizontal, vertical and diagonal lines crossing the selected cell.