Variant Proposals: Fog & Mist (Light Fog)

[pianoblook]

Inspired by a puzzle setter named Chameleon, who recently released a unique sudoku utilizing a 'fog' mechanic ('Lumos Maxima' - cool stuff!)

Fog

• Cards in the Fog suit start Obscured from the team; teammates can see which cards are Fog, but their # is not visible. (But players get no indication of whether or not they themselves hold Fog cards).
• Fog cards only become Revealed to the holder's teammates while any immediately adjacent, non-Fog card(s) has been touched with a color clue.*
• Fog cards do not get touched by any rank clues unless they're actively Revealed.
• Fog cards can always receive color clues (I imagine a dark gray-ish hue).
• Revealed Fog cards can become immediately re-Obscured if its adjacent card(s) are ever no longer touched with color.
• For quality of life purposes, IMO the rank of a re-Obscured Fog card should remain technically visible, but only as a visual aid - it still cannot receive a rank clue until it's re-Revealed.

For example, here's Alice's point of view of a fresh 3p game.

• Cathy's hand, in reality, is [f2, r3, g2, f3, g1]. Bob's hand is unimportant.
• When Alice or Bob looks at Cathy's hand, they only see: [f?, r3, g2, f?, g1].
• Alice clues green to Cathy, touching g1+g2.
• The clue Reveals Cathy's slot 4 to be a Fog 3 (remember, Cathy gets no indication of this fact)
• Bob clues 2 to Cathy. Even though in reality Cathy holds f2, it does not get touched by the 2 clue.
• Cathy plays g1, and next round plays g2. She has yet to receive any further clues.
• Once g2 plays, Cathy's f3 becomes re-Obscured, meaning it can no longer be touched with rank. However, for quality of life the UI still reveals it to be f3 to the team.

Mist

• Mist functions the same as Fog, except that they can only be clued with rank.

[Romain672]

This kind of variant isn't present at all on hanab atm. I proposed lots of those in my trap post: https://github.com/Hanabi-Live/hanabi-live/issues/2542

I think before doing it you should do something simpler, like a suit which take the color of the rightmost card of it. But would it be good to add like 10 Suits with a similar mecanic? I'm not sure.