It's not unusual to come across individualistic gravestones - death seems to attract such things. However, I've never seen one like this before. It is in the graveyard of St Mary's church, Monmouth. The grid of letters forms a kind of acrostic that has the name of the deceased in the form of "HERE LIES JOHN RENIE", in such a way that the inscription can be read in 32,032 (or is it 45,760) different ways. What made a humble house painter, or perhaps his relatives, commemorate him in such a way? This website has some interesting ideas.
photo © T. Boughen Camera: Sony DSC-RX100