British magician Jasper Maskelyne claimed he'd changed the course of WWII with duplicitous tactics, whether making the Suez Canal disappear or creating fake tanks along the English shoreline to bait the Germans into wasting rockets. Imagine this: Your spies tell you that there are only two real tanks— the two that are identical. Which two should you blow to smithereens?
The two tanks that are the same are Top Row Left and Top Row Right.
Differences: Top Middle has rear antenna, Bottom Left has box on rear, Bottom Middle has longer turret, Bottom Right has shovel at rear flank.