Black Widow adds eight single-card reserve cells to a two-deck Spider layout. Ten columns hold 54 cards, with 44 hidden; five stock rows supply the other fifty.
Build by rank; move groups by suit
Place a card on the next higher rank regardless of suit. A descending suited run can move together, and any card or legal run fills an empty column. Each cell holds one card. Stock rows add one card per column, without a redeal or empty-column restriction.
Keep the cells ready to give cards back
Complete eight suited king-to-ace runs that stay in the tableau, and empty all reserve cells to win. Use cells to separate mixed runs, but plan a receiver for each parked card. An occupied cell containing a stranded blocker cannot help with the next stock row.