Kolkata Fatafat (Kolkata FF) is a popular number-guessing game played mainly in Kolkata and other parts of West Bengal. In this game, players choose a number and place a small bet. Results are announced several times a day, and if the chosen number matches the result, the player wins money. Many websites publish daily results and old charts for users to check previous outcomes. The game is similar to Satta Matka and depends mainly on luck. However, such gambling activities are generally illegal in India, so people should be aware of the risks.