Six soldiers tried their camouflage skills in this photo, which was tweeted by British army regiment Household Cavalry on Christmas Day. Can you spot them?
According to The Sun, the photo was taken last July on Salisbury, southern England, where the riflemen positioned themselves amongst greenery, used grass, tress and bushes for cover to demonstrate how they evade capture on the battlefield.
The puzzle proved difficult and would take an eagle sight to spot them, so the Cavalry later posted an image with clues to the snipers' location.
The six expert riflemen were revealed the next day.