How to Play Block Dominoes: Complete Rules for Beginners

Block dominoes is the game most people picture when they hear the word "dominoes" — no hands drawn mid-round, no wild tiles, just a line of matching numbers growing across the table until someone runs out of moves or runs out of tiles. It's also the ancestor of most other domino games, so learning it well makes every variant easier to pick up later.

What you need

A standard double-six set has 28 tiles, covering every pair of numbers from 0-0 up to 6-6, with no number repeated between two-player games. Two, three, or four players can play; two players is the classic configuration for block dominoes specifically, though the same rules extend to more with a bigger set.

Setting up

Turn all 28 tiles face down and shuffle them by sliding them around the table (this is often called "washing" the bones). For a two-player game, each player draws 7 tiles into their hand, keeping them hidden from the opponent. The remaining 14 tiles form the "boneyard," left face down and set aside — in block dominoes, unlike draw dominoes, the boneyard stays untouched once play begins.

Who goes first

The traditional opener is whoever holds the highest double in their hand — the 6-6 if someone has it, otherwise the highest double that was actually dealt. That player lays it in the center of the table to start the line. If no one holds a double, the highest single tile (by combined pip count) leads instead. After the first game, the winner of the previous round typically leads next.

Making a move

Play proceeds clockwise. On your turn, you must place one tile from your hand so that one of its ends matches a number already open at either end of the layout — a 3 can only be placed against another 3. The layout can grow in either direction, and after the first double is played, later doubles are placed crosswise, opening up a branch that both ends of the line can then extend from.

If you have no tile that matches either open end, you simply pass your turn — there's no tile to draw from in block dominoes, since the boneyard is off-limits during play. Play continues clockwise to the next player.

How a round ends

A round ends one of two ways:

• Someone dominoes. A player plays their very last tile, winning the round outright.
• The game blocks. No player at the table has a legal move on their turn, and play cannot continue. Every remaining player's hand is revealed and totaled by pip count; whoever holds the fewest pips wins the round.

For how those two endings translate into points, see our companion guide on domino scoring and try the numbers in the Domino Scorekeeper.

A worked example

Say two players, Ana and Ben, are dealt 7 tiles each from a double-six set. Ana holds the 5-5 double and leads with it. Ben has a 5-3, so he plays it against one end of the 5-5, opening a "5-3" edge and leaving the other end of the double still open at 5. Ana now needs a tile with a 5 or a 3 on it; she plays a 3-1, extending the layout to 5-3-1, with the open ends now at 1 and (still) 5 on the other side of the double.

Play continues this way, both sides drawing down their hands, until either someone empties their hand first (a domino) or a turn comes around where neither open number — whatever they happen to be at that point — matches anything left in the active player's hand, and neither opponent can move either. At that point the round blocks, hands are revealed, and pip totals decide the winner.

Common beginner mistakes

• Forgetting doubles play crosswise. A double isn't just "a tile with matching numbers" — once placed, it typically turns 90 degrees to the line and can be built on from its other two open sides, not just extended in a straight run.
• Playing on the wrong end. Only the two currently open ends of the layout are legal targets; a tile can't be slotted into the middle of an existing line.
• Not passing when you should. If you truly have no legal tile, you must pass rather than play an unmatched tile "close enough."

Where to go from here

Once block dominoes feels natural, draw dominoes is the next logical step — the same core rules, but players draw from the boneyard when they can't play instead of passing immediately, which changes the pacing and the odds considerably. From there, regional games like Mexican Train and Chicken Foot layer on their own twists, covered in our comparison guide. Whatever variant you land on, the fundamentals here — matching ends, playing doubles crosswise, and totting up pips at the finish — carry through almost everywhere.