QED Night
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The Five Lanes: Dario, Cleo, Aiko, Bruno, and Elif

Verified— unique solution
logic grid
Five drivers — Dario, Cleo, Aiko, Bruno, and Elif — each have exactly one car colour, sponsor, fuel, and mascot, and no two share any of them. Match each driver to their car colour, sponsor, fuel, and mascot from these clues: 1. The driver running on diesel is the driver with the shark mascot. 2. Bruno is not the driver sponsored by the airline. 3. Aiko is not the driver of the silver car. 4. The driver sponsored by the toy shop is the driver running on biofuel. 5. The driver of the silver car is the driver with the fox mascot. 6. The driver sponsored by the airline is the driver with the fox mascot. 7. Bruno is not the driver of the hybrid. 8. Elif is not the driver of the hybrid. 9. Bruno is not the driver of the blue car. 10. The driver running on petrol is the driver with the fox mascot. 11. The driver of the yellow car is the driver with the wolf mascot. 12. The driver of the blue car is the driver sponsored by the bakery. 13. Elif is not the driver of the red car. 14. The driver of the black car is the driver of the electric car. 15. Bruno is not the driver sponsored by the toy shop. 16. Aiko is not the driver of the hybrid. 17. Cleo is not the driver running on petrol. 18. Elif is not the driver running on petrol. 19. The driver of the yellow car is the driver sponsored by the brewery. 20. The driver of the black car is the driver with the owl mascot.

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 fuel goes with “Elif”? Answer with just the fuel.

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