Citible

These are the available clues:

- CITY LETTER: Whether or not a letter is present in the city's name.
- COUNTRY LETTER: Whether or not a letter is present in the city's country name.
- TIME: Whether the current hour at that city is below or above your input.
- POPULATION: Whether the city's metropolitan area's population is above or below your input.
- TEMPERATURE: Whether the city's average yearly temperature is above or below your input.
- RAINFALL: Whether your input is above or below the number of rainy (or snowy) days in the city.
- ELEVATION: Whether the city's elevation (with respect to sea level) is above or below your input.

There are two modes of play. In the standard version, the elevation clues are not available. In the hardcore version, the country's letter clues are not available.

Additionally, you can try the competitive challenge: guessing ten cities in a row using as few clues, guesses and minutes as possible.