Eight columns hold forty visible cards. Remove exposed pairs of equal rank to clear the carpet; suits and colors do not affect a match.
The top card of a draw is the playable one
Drag an available card onto another of the same rank to remove both. Unmatched cards cannot be rearranged, and empty columns cannot be filled. The twelve-card stock draws three at a time, with unlimited passes. Only the exposed waste card is playable.
A waste match may open another partner
Before pairing two tableau cards, see whether one can match the waste instead. That removal can reveal the next waste card while opening a column. When several copies of one rank are exposed, compare the cards beneath them. You win once the tableau is empty, even if stock cards remain.