A problem picture is a genre of art popular in late Victorian painting, characterised by the deliberately ambiguous depiction of a key moment in a narrative that can be interpreted in several different ways, or which portrays an unresolved dilemma.
[1] The genre began to emerge in the second half of the nineteenth century, along with the development of book illustrations that depicted "pregnant" moments in a narrative.
One of the earliest problem pictures is John Everett Millais' Trust Me, which depicts an older man demanding that a young woman hand him a letter she has received.
It depicts a young boy of the English Civil War period being gently interrogated by Cromwellian troops who are looking for his Royalist father.
The genre continued to be popular into the early twentieth century, but was by this time increasingly seen as old fashioned and as over-literary, against the emphasis on pictorial style and form characteristic of Impressionism and Post-Impressionism.