Arranging Duplicate Tricks - After a trick is won or lost (quitted), each
card should be faced down and oriented lengthwise in the direction of the
side winning the trick. See Law
In this example, the player's side won trick 1 & 2, lost 3 & 4, won 5 &
6, lost 7 & 8, and won tricks 9 through 11 (tricks 12 and 13 have not yet
been played). Assuming the declarer bid 3 Notrump, the player
must win the remaining 2 tricks to make the contract (winning 9 tricks,
losing 4 tricks).