Rules & objective
Selected Pagat four-player double-nine 100 profile, excluding 300/all-remaining-pips/double-six/individual-draw editions. Representatives are seats 1 and 2; equal opening-draw pip totals are returned, reshuffled and redrawn until different. Each opener is nominated by the entitled team before dealing; its lower seat represents it. Ties switch that team, redeals retain the nominated opener. Four private acceptances implement the redeal right; computers demand an eligible five-double redeal and publicly reveal only those doubles, kept in a separate record. Other old tiles stay private. Computer and hints know only their hand and public tiles/counts, not unused identities, other hands or future deals; best play is not guaranteed. Default randomness, explicit reproducible seeds. Selection/hints preview until confirmation. Rules and ledger pause the computer; undo includes responses, redo restores them exactly. Restart retains the current deal, nominated opener and pre-hand scores; new match starts zero with a fresh opening draw. Reveal four hands only at hand end; prior hands and public redeals remain in the record. No timer, wagering or physical mixing-order penalties.
The double-nine set has 55 tiles numbered 0–9. Four players partner across the table, seats 1/3 and 2/4, counterclockwise. Before the first deal, a representative from each team draws a tile; the higher pip total gives that team the opening right. Return the draw tiles and shuffle. Deal ten each, leaving fifteen face down out of play; these are never drawn. The opener may play any tile, without a required double or double nine. Each player privately reviews the deal; five or more doubles may be publicly shown to demand a full reshuffle and redeal. Play a matching tile at either end whenever possible, otherwise pass; no branches. An empty hand wins for its team. Four consecutive passes block the hand: the lowest individual pip total wins for its team, not the lowest partner sum. Opponents tied for the individual minimum draw with no points; the team that did not open nominates the next opener. A winning team scores only both opponents’ remaining pips, excluding its own, its partner’s and unused tiles. Scores accumulate without reset;100 or more wins. A win while opponents remain zero is Pollona; reaching 100 from zero in one scoring hand while opponents stay zero is Tripollúa. These names add no bonus.
Controls
Play directly on the cards or board with mouse or touch. Coordinate selectors are optional keyboard aids.
Worked example
Double-nine has fifty-five tiles rather than double-six’s twenty-eight. Apply this double-nine profile’s dealing and opening rules.