Of course, it's impossible.
Welcome to joseki farm (alpha)!
Play a move in the upper-right corner of the board. Your opponent will respond. If you play a move that is not joseki, you will fail instantly.
When you think it is time to play away from the upper-right corner, press the "pass" button. The sequence ends when both players pass.
For each move you play, you will harvest some fruit. You get more fruit for playing moves you have not played recently. Try to harvest as much fruit as possible!
When you complete a sequence, you will harvest a lot of bonus fruit! But if you fail a sequence, some of the fruit in your basket will be lost.
Have fun! Play joseki farm (alpha) every day! Play joseki farm (alpha) instead of sleeping! Play joseki farm (alpha) instead of having friends!