PC loop

Related terms

• DPC →

  A family of T-spin Double-to-PC continuations often used after an eight-line PC. The leftover piece from the third bag selects the route; a successful continuation can return you to an empty board at a fresh bag.

• Bag boundary →

  The join between two shuffled bags. Consecutive matching pieces can occur here. Tracking the boundary tells you which pieces remain guaranteed in the current seven-piece set.