Does the player have any opportunity to rearrange the order of cards within a day or between days at any point after placement, such as during scoring or due to a special effect, or is placement always permanent?
inferred
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Official Answer
Placement of cards is always permanent. According to the rulebook:
- "Once a card is placed, it may NOT be discarded, moved to a different day, or swapped with the position of another card in the same day."
(page 6, card placement section)
There is no mention of any special effect or phase (including during scoring) that allows rearranging cards within a day or between days after they have been placed.
Summary:
Card placement is permanent and cannot be changed after the card is placed, as stated on page 6.
Source: Base Rules (pp. 3, 5, 6, 7)