Accuracy Do not aim at a whole area, but a one specific point, e.g. an irregularity in the grain of the wood. Most likely you will notice that your knives do not stick in the target point, but in a specific direction beside it. Now it is easy, just move the point you are aiming at in your mind. For the target point, you have some possibilities really paint it on the wood, use playing cards or pieces of fabric. You can also make rings to throw into. Make sure to sprawl the little targets all over the target board, it will thank you by lasting longer, and you have more diversity for your practice throws. But leave an empty margin around your marks so that not too many knives miss the board.