A matching game where your task is to pair off adjacent cards until the table is empty; at each new deal, the cards remaining on the Tableau are "compacted", and the spaces filled from the Stock.

What does this have to do with Monte Carlo? No idea, other than the fact that luck plays an important part in this game.

Strategy tip: Sometimes, and especially towards the end of a game, it can be advantageous not to make all available matches in one go — doing one match, and then compacting the Tableau may work better in some cases.

This game is also mentioned in the description of:
Cakewalk.