Deck Operations Laboratory

Top card

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Bottom card

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Current base

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Distance from base

Ribbon Spread

position number below each card · click cards to select up to two

Select one or two cards in the spread.

Card spacing 20px

The slider is automatically limited so all 52 cards remain visible in the spread window.

Keyboard: Ctrl+Z undo, Ctrl+Y redo, Esc clear selection.

New top = position

Cut to card

A cut preserves cyclic order. “New top = position 27” moves the first 26 cards intact to the bottom.

Repeat

Out-faro keeps the original top and bottom cards outside; in-faro moves the second packet to the outside.

Riffle uses a near-half random cut and probabilistic interleaving. Overhand preserves order within small packets while reversing packet order.

Position A B

Card to

Top cards

Hands Cards each

Gather order

Cards are dealt one at a time from the top, left-to-right, exactly as at a card table. The undealt cards remain in order.

Deal into piles

Deals singly left-to-right, then gathers piles from left to right, preserving the order within each pile.