Bridge & other card games/Cut of cards
Is it proper for the dealer's RHO to cut the cards into 3 or 4 piles?
Law 5 describes the appropriate manner to cut the cards before dealing.
The pack must be cut immediately before it is dealt. The dealer presents the pack to his RHO, who lifts off a portion and places it on the table toward the dealer. Each portion must contain at least four cards. The dealer completes the cut by placing what was originally the bottom portion upon the other portion.
No player other than the dealer's RHO may cut the pack.