F1dle covers Formula 1's circuit roster — about 50 circuits (24 active, 26 historical). Two modes: classic attribute matrix and visual circuit recognition.
Circuit length, corner count, country, debut year and continent are compared. Length and corners are numeric fields with directional arrows.
An aerial layout image of the circuit is shown; identify which one. Layouts come from Wikipedia infobox images. Indianapolis is excluded from this mode (no clean layout image).