This isn't gambling. You're renting real mining time. Your seat at the table is where that rented rig works while you play — a skill game (bid smart, play smart, race your partnership to 500). Longer sessions = more rented time = more chances a rig lands a verified Block Found mid-session.
Teams. You partner with North (US). West & East are the opponents (THEM). All 52 cards are dealt, 13 each.
Bid. Each player bids how many tricks they'll take. A bid of 0 is NIL (take zero tricks for +100, or -100 if you slip). Blind Nil (bid before looking, +/-200) is offered when your side is trailing by 100+.
Play. Follow the led suit if you can. Spades are always trump and can't be led until "broken" (someone plays a spade because they're void, or the leader has only spades left). Highest spade wins the trick; with no spade, the highest card of the led suit wins.
Score. Make your contract (team's combined bid): bid×10, plus 1 per overtrick ("bag"). Miss it and you're set (-bid×10). Every 10 bags costs -100. First team to 500 wins.
Mining frame. Credits = rented mining time (not a wager). A rare Block Found is a verified mining event with real value — it can hit any session; skill just keeps you at the table longer.