Thanks for your suggestion, but if I accept quid, I think I should also accept other colloquial terms. And it would be undoable to find and check all slang terms for every currency.
Nice quiz! One suggestion: The US Dollar is used in Cambodia alongside the Cambodian Riel in everyday life. 1 USD equals between 3800 and 4400 Riel, and payments are usually made in USD or a mix of USD and Riel, large amounts are usually even advertised in USD. ATMs in the country only dispense USD, if you want Riel you need to get them as change when paying in USD. Could you add the US Dollar as an additional answer for Cambodia?
Excellent quiz! It's so satisfying to see large swathes of green appear with certain currencies, but also a fun challenge to try remembering/guessing the single-country currencies. Nice work.
I wonder what the map would look like if countries using the same currency were merged... Probably wouldn't change enough to be worth the effort, but amusing to see the Eurozone and the two CFA Franc zones in their full glory.
Could you except "quid" for Pound Sterling?
Leu and lev accepted for each other; and dinar and denar for each other.
Rupee accepted for rufiyaa and rupia, but not rufiyaa for rupee or rupiah, or rupiah for rupee or rufiyah.
Krone, krona or koruna not accepted for each other at all.
This quiz was quite inconsistent.