Prism

These conventions apply to any variant with a prism suit.

For the purpose of Finesses, prism cards only "connect" if they are the next direct color.
Players can perform a Bluff on a prism card with a color, as long as the focus of the clue is a valid Bluff target and the color represents a prism card that is two-or-more-away-from-playable.
As a consequence of this, you can Bluff a prism 1 by cluing a prism 3 (with color).
For example, in a 3-player game of Prism (5 Suits):
- Nothing is played on the stacks.
- Alice clues green to Cathy, touching a prism 3 as a Play Clue.
- Bob blind-plays a prism 1 from his Finesse Position.
- From Cathy's perspective, she knows that prism 3 is green, and that since green clue connects to a prism 3, this could be a Double Finesse. (If this was a Double Finesse, then Cathy would be called on to blind-play the prism 2 from her own hand as a Self Finesse.)
- However, Cathy knows that Prism Hard Color Bluffs take precedence over Double Finesses. The prism 1 would connect to yellow, but it does not connect to green. Thus, this is just a Bluff.
- Cathy marks her green card as either a green 2 (as a normal Bluff), a green 3 (as a 3 Bluff), or a prism 3 (as a Prism Hard Color Bluff).

Sometimes, players have a clued prism card in their hand that matches a clued normal card in their hand.
For example, in a "Prism (5 Suits)" game:
- Bob has a blue 4 and a prism 4 in his hand. Both have been previously clued with a blue color clue, but Bob does not know the true identity of either card.
In this situation, it is hard to give a Tempo Clue to the rightmost card. Thus, the Ambiguous Tempo Clue convention applies, and we agree that:
- a color Tempo Clue should focus the rightmost card
- a rank Tempo Clue should focus the left most card

Ambiguous Prism Tempo Clues are considered to be high-value. Thus, we agree to never Chop Move from these types of clues.