The game was also played as pool precisely according to the rules briefly sketched as above, the penalty for losing being a guinea to the pool.
Piquet required much practice to play it well. It became so great a favourite that, by the middle of the 18th century, the meanest people were well acquainted with it, and 'let into all the tricks and secrets of it, in order to render them complete sharpers.' Such are the words of an old author, who adds that the game was liable to great imposition, and he explains the methods in use. Short cards were used for cutting, as in Whist, at the time. Of these cards there were two sorts, one longer than the rest; and the advantage gained by them was as the adversary managed it, by cutting the longer or broader, as best suited his purpose, or imposing on the dealer, when it was his turn, to cut those which made most against him. The aces, kings, queens, and knaves were marked with dots at the corners, and in the very old book from which I am quoting precise directions are given how this marking can be effected in such a manner 'as not to be discovered by your adversary, and at the same time appear plain to yourself.' With a fine pointed pen and some clear spring water, players made dots upon the glazed card at the corners according to the above method; or they coloured the water with india ink, to make the marks more conspicuous. The work concludes as follows: -- 'There are but 32 cards made use of at Piquet, so that just half of them will be known to you; and in dealing you may have an opportunity to give yourself those you like best; and if you cannot conveniently change the pack according to your desire, you will commonly know what you are to take in, which is a demonstrative advantage to win any one's money.'