The main domino games, and how their rules actually differ

Most arguments at a domino table are not about who played badly. They are about which game everyone thought they were playing. The tiles are the same, the table is the same, and then someone scores during the game and someone else says that is not how it works.

So here is what actually differs between the games people mean when they say "dominoes".

The part that never changes

Every game below uses the same basic action. You hold tiles. A tile has two ends, each with a number of pips from blank to six in a standard set. You may place a tile against an open end of the line if one of its numbers matches that end. A double is usually placed crossways.

That is the whole shared core. Everything else — how you get tiles, when you score, what ends the hand, what happens when nobody can move — is where the games separate.

Block

The simplest version, and the one most people learn first.

Everyone draws a fixed hand. There is no boneyard to draw from once play starts: if you cannot play, you pass. The hand ends when someone plays their last tile, or when nobody can move.

Scoring happens at the end of the hand only. The player who went out scores the total pips left in everyone else's hands. In a blocked game, the player with the fewest pips remaining scores the difference.

Block rewards holding tiles that keep your options open. Because you cannot draw, being stuck is permanent, and the player who tracks which numbers have dried up is the one who avoids it.

Draw

Block, with one change: if you cannot play, you draw from the boneyard until you can, or until the boneyard is empty. Only then do you pass.

That one change moves the game a long way. Being stuck is temporary, so the careful hoarding that wins at Block matters less. In exchange your hand grows when you are unlucky, and since scoring counts the pips left in your hand, a long run of draws is expensive.

Draw is the most commonly played form in the English-speaking world, and when a set's instructions say "dominoes" without qualifying it, this is usually what they mean.

All Fives

Also called Muggins. The structural difference is that you score during play, not only at the end.

After each tile is placed, you add up the open ends of the line. If that total is a multiple of five, you score it. A double counts both its halves, which is why doubles swing the arithmetic so hard.

This changes every decision in the game. In Block or Draw you ask which tile keeps you safe. In All Fives you ask which tile scores now, which tile sets up a score next turn, and whether a move that scores five is worth handing your opponent a position that scores fifteen.

It is the variant most people move to once the basic game stops surprising them, and it is the one where the gap between a strong and a weak player opens widest.

Mexican Train

Structurally the odd one out. Instead of a single line, each player has their own train running from a central hub, plus a communal train anyone may play on.

You normally play on your own train. If you cannot, you mark it as open and others may play there too — which is the whole tension of the game, because an open train is an invitation to be dumped on.

It is usually played with a larger set, often double-twelve, and suits bigger groups. It is also the most forgiving: there is nearly always somewhere to play, so it is a better choice for a mixed table than Block.

Partnership play

Not a separate game so much as a layer over one. Four players, two teams, seated so partners are opposite each other. Scores are combined.

What changes is what counts as a good move. The strongest tile in your hand may be worth holding because your partner is more likely to need the number it carries. Blocking an opponent matters as much as advancing yourself. And the beginner mistake is unmistakable: playing to empty your own hand while your partner quietly drowns.

Partnership play is the standard form across much of the Caribbean and Latin America, and a table that plays it will usually assume it rather than announce it.

The differences worth settling before you start

Four questions, and almost every table disagreement traces back to one of them.

Do you draw? Block and Draw differ on this alone, and it changes how you hold your hand from the first tile.

Do you score during play? All Fives does. Block and Draw do not. If half the table is counting open ends and half is not, nobody is playing the same game.

What happens when the game blocks? Usually the lowest remaining pip count wins, but who scores what varies. Agree it before it happens, not after.

What is the target? Dominoes is played to a score, not to a hand. 100, 150 and 250 are all common. The number changes how much risk is worth taking early.

Why none of this is settled anywhere

There is no governing body whose rules everyone follows. Domino rules are regional and family-level traditions written down after the fact, which is why two rulebooks will contradict each other and both be correct about somewhere.

The practical consequence is that the right rules are the ones your table agreed to. The useful skill is not knowing one canonical version — it is being able to ask the four questions above in ten seconds and adapt.