There are two aspects to Acey Deucey:
- Identifying whether you are an End or a Center.
- Correctly doing your part.
The Centers part is a Trade - from either a Mini-Wave or a Couple.
The Ends part is a Circulate - move forward to the next position within the formation.
Acey Deucey is not legal from formations where the End's Circulate path
causes them to move into the center (e.g., Mini-Wave Columns, the
In-Facing Ends' Circulate path would cause them to end in the center).
Trade The Deucey [C3A] :
From Parallel Lines, Twin Diamonds, a Generalized Thar,
or other applicable formations.
Centers Trade and Spread as the Ends
From most formations Trade The Deucey is equivalent to Acey Deucey & Spread.