Tetris.AI

In this version of Tetris, the player has a 'hold place', which make it possible to put away one block to that place then take back that block when necessary.

Tetris with 'hold place' is much simpler than Tetris without it.

Thanks

This repo forks from a very nice Tetris game by avdg

This AI bot is based on the bot in ltris, which is a famous tetris game on Linux.