You've heard from your friends about their mutual friend named Tony. This is an interesting personality, enthusiastic and unusual, in particular, the guy is fond of puzzle quests. He had already tried all the quest rooms in the city, they seemed too simple to him and the hero decided to come up with and equip his own in a city apartment. This is a crazy idea that no one believed in. But one day, Tony called and invited you to try out his new home. You came to visit and the owner locked you in his apartment, offering to independently find the key and be released. Well, let's show that you have everything in order with your logic, and you are smart. Solve puzzles that fill all rooms and find the key.