How to Play Sebastopol

By Jaques of London · Est. 1795 · Updated 2026-08-17

Sebastopol is a straightforward, sociable domino game for exactly four players, played with a standard double-six set. It is built around the double-six tile, which anchors the entire layout and forces all four arms of play to open before anyone can branch further. That single structural rule keeps the early game tight and gives everyone a fair chance to dictate the table before the layout opens up.

The game is popular at kitchen tables and family gatherings because it requires no scorekeeping equipment, teaches quickly to newcomers, and plays at a brisk pace. Rounds rarely drag, and the tension of watching opponents empty their hands while you sit on an awkward tile is entertainment enough to keep everyone at the table for another game.

A little history

Sebastopol takes its name from the Crimean port city, and it is widely assumed the name was applied during or shortly after the Crimean War of the 1850s, when Sevastopol was prominent in British public consciousness. Beyond that association, the precise origins of the game's rules are unclear. The format belongs to a broad family of domino games sometimes called "fortress" or "star" games, found across Europe, but exactly where and when this specific four-arm variant was codified is not firmly documented.

Setting up

1. Turn all 28 tiles face down and shuffle them thoroughly.
2. Each player draws seven tiles and stands them on edge so only they can see their own hand.
3. No tiles remain in reserve; all 28 tiles are dealt between the four players.
4. Identify which player holds the double-six before any tile is played.

How to play

1. The player holding the double-six places it face up in the centre of the table. This tile is compulsory; there is no choice of opening tile.
2. Play passes clockwise from the player who laid the double-six.
3. The double-six creates four open ends, one on each side. All four of these ends must be claimed before any other tile can be placed anywhere on the layout.
4. On each turn, a player must play a tile if they legally can. The four open ends of the double-six can only be satisfied by tiles bearing a six. Each player in turn must lay a six-bearing tile against one of the four arms if they hold one.
5. Once all four arms of the double-six have been filled (i.e. four tiles each showing a six have been placed, one on each side), the layout is open. Subsequent tiles may be added to any of the four arms by matching the pip value at the open end of that arm.
6. Tiles are laid end to end along each arm. Doubles are placed crosswise but do not open new arms; they simply extend the arm they are placed on.
7. A player who cannot place any tile on their turn passes. They announce "pass" clearly and take no other action.
8. Play continues clockwise until one player lays their last tile or until all remaining players are blocked and no legal play exists anywhere.

Winning and scoring

The player who places their final tile first wins the round. In a single-round game, that player wins outright. For a multi-round scoring game, when play ends (either by one player going out or by the table being completely blocked), every player totals the pip count of the tiles remaining in their hand. The winner of the round scores zero; all other players score the sum of their remaining pips as penalty points. Agree a target score, commonly 100, before starting: the player whose cumulative penalty total stays below that threshold longest, or who has the lowest total when another player exceeds it, wins the match.

The fine points

The most common dispute concerns the four opening arms. The rule is absolute: no tile may be placed on any arm beyond the first tile until all four arms have received their opening six-bearing tile. If a player cannot contribute to completing the four arms on their turn, they pass, even if they could legally play elsewhere on a completed arm. This sometimes means two or three players pass consecutively in the early game, which is entirely within the rules and not a reason to redraw or reshuffle.

A second common edge case arises when the table is blocked: every player holds tiles but no open end matches any tile in any hand. In this case the round ends immediately. All players reveal their hands, each counts their pip total, and the player with the lowest count wins the round. If two players tie on the lowest count, the tied players share the win for scoring purposes and neither scores penalty points for that round.

How to win more often

• Hold back high-pip doubles if you can. A double-five or double-four stranded in your hand at the end of a blocked round costs you dearly.
• Count which sixes have been played in the opening phase. Knowing which arms are open tells you which suits will grow and which may stall.
• If you have a six early on, play it promptly to complete the four arms. Delaying helps nobody and often costs you a turn you could use more productively.
• Watch your opponents' passes carefully. A player who passes repeatedly on a particular suit almost certainly holds none of those pips, which tells you which ends are safe to extend without feeding them an easy play.
• In a multi-round game, aim to go out rather than simply block others. The zero penalty score for winning a round compounds favourably over several rounds.

Variations

Cyprian Sebastopol (5-player)

Some households adapt the game for five players by using a double-nine set and seating five players. The double-nine anchors the centre, creating four arms as usual, though the larger set means more complex suits and longer rounds. Rules for the opening arms remain identical.

Blind Sebastopol

In this variant, tiles are not stood on edge; players lay them face down in front of themselves after drawing and may not look at them. On each turn, a player flips their topmost tile and plays it if legal or passes if not. This removes all hand-management skill and turns the game into a pure draw of chance, making it useful for mixed age groups where younger children play alongside adults.

Scored Sebastopol (positive points)

Instead of counting penalty pips, the winner of each round scores the total pips of all tiles remaining in opponents' hands as positive points. The first player to reach an agreed target, typically 100 points, wins the match. This inverts the scoring anxiety: players race to go out holding the richest possible opponents rather than simply shedding tiles fast.

Partnership Sebastopol

Players sit alternately so partners face each other across the table. Penalty or positive points are pooled between partners at the end of each round. Partners may not communicate about their tiles but benefit from watching each other's plays and covering suits the partner appears to lack. Partnership play rewards careful observation and makes the game considerably more tactical.

Sebastopol: frequently asked questions