The most common lottery game is the Kolkata FataFat located in West Bengal. For many people who play this game, it is not just an addiction to check the outcome of the lottery but also the manifestation of their curiosity, hope, discussions and natural desire to detect patterns. Every day thousands of people are waiting for rounds of the game, comparing the outcome of today's round with the others and discussing their expectations with friends. However, although the outcomes of the game are quite simple and evident in numerical terms, the feelings connected with this game may vary widely. What is particularly interesting in the case of the Kolkata FataFat lottery https://kolkataff.net/ is the peculiarities of perception of the number generation process by the human brain. The human brain tends to detect certain patterns of number generation and after noticing that some number occurs many times believes that this number either "hot" and will occur again or "due" and will never occur. In turn, it is believed that the number which did not occur for a while will surely occur very soon.