binary day
for the minesweeper...
in the top left corner, look at the spaces directly below the [2] thats directly beneath the [4], in which the [4] already has 3 mines around it. (if the top-left corner space is (0, 0), the [4] space is at (4, 2) and the [2] space is at (4, 3) )
the spaces down-left, directly down, and down-right from that [2] space should be clear. the mine is either to the top-right or directly right of the [2] space at (4, 3)