What??? You want instructions? Umm, well you place your L somewhere (not where it was before and not overlapping anything else) by moving the mouse around until a grey L appears to show where you can put it and then clicking. You can flip and rotate your L by clicking on the appropriate buttons. Then you can move one of the little blocks by clicking on it and then clicking on a blank square. Click somewhere that isn't a block if you don't want to move one of the blocks after moving your L. Click on the other block to change which block you're moving. Then it's the other person's turn. Yes that's pretty much it. You lose when you can't move your L.