passed that card into his discards. If he knew, on the contrary, that his opponent had the ace, it would be better to leave the 9 up, so as to bar the ace. It may then be a long time before his opponent can get rid of that card.
In choosing the direction of a sequence which can be started, or reversed, it is essential to keep in view the probability of using cards which are in sight that approach one end. For example: The 8 of hearts tops one pile. There is a choice of putting the 5 on the 4 or the 4 on the 5 in another pile. As the 5 is closer to the 8, it is better on the top of the 4. On the other hand, if you have seen your opponent bury the 6 in his discards, put the 4 on the top. It may be difficult for him to get rid of that 6 of hearts. A good memory
