How it plays
Follow suit when possible and use submarine trumps to control tricks. Before play, teammates divide task cards whose conditions must all be satisfied. Tasks can concern particular cards, suits, or how many tricks someone wins.
The mission sets an overall difficulty, and task values depend on the player count. Drawing a different combination can produce another puzzle at that difficulty. Usually each player gets one sonar communication, revealing a coloured card as highest, lowest, or only in its suit.
Decisions you’ll make
Consider how tasks interact before claiming one. Being able to win early tricks may help one assignment while making another player’s requirement impossible.
Keep track of who can still lead and who has run out of a suit. A deliberately lost trick can give a teammate the control they need without anyone saying what they hold.
Learning the game
Moderate: the trick rules repeat, but task interpretation and limited communication add a substantial coordination puzzle.