When you are playing FOG Mahjong, you are supposed to remove the stones in the game without bringing down the pyramid. The only way to remove the stones is to find a pair which is similar and then pairing them up. The matching pair must be free and this means that it should have either the left or the right edge free. At the beginning of the game, you will be asked which pyramid you would like to start with; they have 40, 64, 114, 164, and 234 stones each. In order to get more points for your work, you should resolve the pyramids in the shortest time possible. When you make a move and there are no more moves to make the game will come to an end. The game can show you which stones are free and then you can plan your next move. Unlike other games, showing you which stones are free in this game will not earn you a penalty since it shows all of them and then you are supposed to make your choice. Seeing the free stones does not mean that you will make the right choice. This is why the game does not penalize you. You cannot reshuffle stones in this game, so once the moves are complete, you can only restart the game. It is important that corner stones are considered free even if they have other stones on top of them. This is why it is possible to bring the pyramid crashing down if you make the wrong choice. You should always think about removing the tiles at the top of the pyramid first and this way you will go all the way to the end without any problems. This is a great way of spending your free time and you can ask a friend over and see who is faster.