Thank you for feedback. We've added some restrictions to tiles generator to ensure that it's always possible to play at least 4 tiles on hand if you've menaged to play all of the previous ones but our system is not perfect and if you're unlucky or unexpirienced than it still can be extremly hard to not lose. As you're the 2'nd person complaining about it we might change the tiles generator's restrictions to make the gameplay easier if we continue working on this project.