Shawl deals all 52 cards face up into ten columns. Remove exposed pairs of equal rank until every column is empty. There is no stock.
A matching pair is the only move
Drag one exposed card onto another card of the same rank, regardless of suit or color. Both disappear, exposing the next cards in their columns. You cannot build sequences or move unmatched cards into an empty column.
If three or four copies of a rank are exposed, inspect the cards beneath them before choosing a pair. One removal may open a new matching rank while another leaves the same columns blocked. A visible partner buried within a column still needs its blockers removed. Try to open complementary columns rather than clearing only the shortest pile.