Hi Witchen,
Isn't there a magnifying glass at left of inventory bar? My memory is slipping here.
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The object of this puzzle based on the clue found at the back of the real painting is to copy the 4 clues - one set of clues at a time on the picture. If the clues are uncolored, the others should be colored. If the clues are colored, the other frames should be uncolored. After doing one clue, click on the number of that particular clue on the right panel. If done correctly, a colored triangle will appear at the bottom.
MaG