Object of the game: To be the player with the lowest score after nine rounds of play.
 Choose one player to be the scorekeeper. Keeping the tiles facedown on the table, each player draws 9 tiles from the deck. The remaining tiles comprise the stock pile. With 2 players only, each draws 15 tiles.

The player with the 1-1 tile (or the double "pip" tile in the event
the 1-1 is not drawn) begins the round by placing it faceup in the center slot of the wooden center piece. if the double-pip tile is used to begin any round, it will represent the number tile for that round. (For example: Round 4 begins with the 4-4 tile or the double-pip tile. if the double-pip tile is used to begin that round, it represents the 4-4 tile.) Each round begins with the double tile next in value (e.g., double-2, 3, 4, 5, progressing through 9). There are nine rounds in a game.

If neither the 1-1 nor the double-pip tile is drawn, the designated scorekeeper draws one tile from the stock pile. Each player continues to draw from the stock pile in a clockwise manner until the 1-1 or the double-pip tile is drawn.

Play proceeds in a clockwise manner.
The second player may play on either side of the starting tile, using a 1 or a wild-pip tile, placing it horizontally against the first tile played.

The third and all subsequent players may place their tile on either the unplayed side of the original domino or on the previously played domino. Players are free to play on either side of any domino (or on the top and bottom of the 1-1 or pip tile) only when both sides of the starting tile have had play.
A player using a double tile places it vertically on the playing surface.

When a double tile is played (except for the initial start-of-the game play), the next three plays must be played on the double using either a corresponding number tile or a wild-pip tile. Play may then proceed from any "branch" on the playing surface.

If a player is unable to place a tile from his hand, he draws one tile from the stock pile. If he is still unable to place a domino, play passes to the next person.

The round is over when a player has played all the tiles in his hand or when a round is blocked. A round is blocked when no player can place a tile from his hand, and the stock pile has been depleted.

When the round is over because a player has played all the tiles in his hand, that player is considered the winner for that round. in the case of the round ending in a block, all tiles remaining in each player's hand are counted and added to their scores. There is no winner for that round, and no player may deduct any points from his score.

Scoring: At the end of every round, each player totals the count of each tile remaining in his hand. Count is determined by the total number of pips of each tile, in addition to the points from any wild tiles as follows:
Single wild-pip tiles count 20 points each, plus the number of dots on the tile.

Double wild-pip tiles count 50 points each.
Each directional tile counts as 25 points, not including the "pips" on the tile which are an additional 20 points. The points are totaled, and the scorekeeper records each player's total. The scorekeeper then deducts 10 points from the round winner's score.

Note: No player's score may fall below zero.