Partners
You sit South. Mira is your North partner. Jules and Sol are the opposing partnership.
Partnership trick-taking against three AI players
You sit South. Mira is your North partner. Jules and Sol are the opposing partnership.
The high bidder names trump and leads first. Bid only when you think your partnership can reach that number.
Every domino containing trump is trump. Otherwise its higher pip determines its suit. Follow the lead suit whenever you can.
Trump beats all non-trump. Otherwise, the highest domino in the lead suit wins. Doubles are high in their own suit.
Every trick is worth 1. The 5-0, 4-1 and 3-2 are worth 5. The 5-5 and 6-4 are worth 10.
The bidding team must reach its contract to earn a mark. First partnership to 7 marks wins the match.
42 has a few special rules. New players can take a short guided tour before jumping into their first hand.