The Four Lanes: Bruno, Cleo, Aiko, and Dario

Verified— unique solution

logic grid

Four drivers — Bruno, Cleo, Aiko, and Dario — each have exactly one car colour, fuel, and sponsor, and no two share any of them. Match each driver to their car colour, fuel, and sponsor from these clues: 1. The driver of the silver car is the driver sponsored by the bank. 2. The driver of the red car is the driver of the hybrid. 3. Dario is not the driver sponsored by the toy shop. 4. The driver of the silver car is the driver running on hydrogen. 5. The driver of the black car is the driver sponsored by the toy shop. 6. The driver of the black car is the driver running on biofuel. 7. Dario is not the driver of the red car. 8. Bruno is not the driver running on hydrogen. 9. Dario is not the driver running on hydrogen. 10. The driver of the hybrid is the driver sponsored by the dairy. 11. Cleo is not the driver of the silver car. 12. Bruno is not the driver of the black car.

Hints

Hint 1

Hint 2

Hint 3

Solution

Commit an attempt to unseal the proof. Write your answer — right or wrong, thinking it through is the point.

In the final matching, which sponsor goes with “Dario”? Answer with just the sponsor.

Hints

Solution

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