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Counting Tiles in Mahjong: How to Tell If Your Hand Is Still Alive

· 6 min read

Count the copies. There are exactly four of every numbered tile, every wind, and every dragon in an American mahjong set. So if three of the four tiles you're still waiting on are already face up on the table, the part of your hand that needs them is in serious trouble, and you should know that now rather than eleven picks from now.

That's the whole skill. It sounds like bookkeeping and it plays like x-ray vision.

The only number you have to remember is four

Four copies of every number tile. Four of each wind. Four of each dragon, the white one being the soap. Flowers and jokers are the exceptions at eight apiece, and they sit outside this whole exercise. If you want the full breakdown of all 152 tiles, we've got that written up separately.

Four is a small enough number to actually hold in your head mid-hand, which is exactly why this works. You're not memorizing a deck. You're keeping track of a handful of items, and three of them have already gone by.

What counts as "gone"?

A tile is out of reach for you if it's sitting in the discards in the center of the table, or if it's part of somebody's exposure on top of her rack.

A tile sitting in another player's hand behind her rack isn't gone. It's just not available right now. She might discard it in four turns. She might be sitting on it because she needs it too.

So when you count, you count what you can see. Discards plus exposures plus the ones in your own hand. That's your number.

The count that actually decides things

You don't need to track every tile in the set. Nobody does that. Great players aren't running a ledger, they're watching two or three specific tiles, the ones their hand is waiting on.

So narrow it down. Ask yourself what your line still needs, then count only those.

Say your line needs a pair of one particular tile and you're holding one of them. That's one accounted for. If you scan the table and see two more of that tile, one in the discards and one in an exposure, then three of the four exist outside your control. There's exactly one left in the world, and it's either in the wall or in somebody's hand.

That's not automatically fatal. But it's the moment to have a plan B, and it's a much better moment than the one where you finally notice with six tiles left in the wall.

If all four are accounted for and you're holding one of them, that pair is finished. Not risky. Finished.

Why pairs are where the count is fatal

This is the piece that makes counting worth doing, and it comes down to one rule.

Jokers can never represent a tile in a pair or a single. They work in a pung, a kong, a quint, and anything larger, but the moment a grouping is two tiles or one, a joker is useless in it. You need the actual tile.

Which means your pungs and kongs have an escape hatch and your pairs don't.

If you need a kong of something and two are already on the table, you're annoyed, but a joker can still bail you out. If you need a pair of something and three are already on the table, no joker in the set will save you. That's the count that ends a line.

So when you're deciding which numbers to track, track the pair tiles first. Always. They're the fragile part of the structure, which is also why it's worth protecting the pairs you already have instead of breaking one up for a pung that feels like progress.

When the count says keep going anyway

Early in the game, don't panic over a discard.

If you see one of your tiles go by in the first few turns, that's normal. There are three more, there are a lot of picks left, and beginners lose a great many perfectly good hands by bailing on them in turn four. One copy gone is information. It isn't a verdict.

Two gone is a yellow light. Start looking at what else your tiles could become.

Three gone on a tile you need for a pair, when you're holding the fourth, is a red light, and that's usually the clearest signal there is to switch to a different hand while you still have enough turns to build one.

The reason to do the counting is precisely so that you're switching on evidence rather than on a bad feeling. A bad feeling in turn six costs you the game. Evidence in turn six saves it.

The same count protects your discards

Counting works in the other direction too, and this is where it starts feeling sneaky in a good way.

When you're about to throw a tile and you're worried somebody's waiting on it, check how many of it are already on the table. If two are already out there, your discard is a fair bit safer, because the odds of her needing that specific one and holding the right supporting tiles have dropped. If none are out and you're deep into the hand, that's the riskier throw.

It's not a guarantee. It's a better guess than a coin flip, which is all defense ever is. Pair it with what people's discards tell you and you'll start making the kind of throws that look lucky from the outside.

Quick reference: counting tiles in American mahjong

The takeaway, if you only keep one thing

Before you commit to a line, count the copies of the tiles you still need that are already face up, and count the pair tiles first.

One sentence, and it's the one to keep. It costs you about five seconds a turn and it's the difference between chasing a hand that died ten minutes ago and pivoting in time to win with the second one.

Nobody does this perfectly. Experienced players miss tiles all the time and then remember at exactly the wrong moment. You'll get it wrong, and then you'll get it right, and one Thursday you'll switch hands on turn seven for a reason you can actually explain out loud and win on a tile you'd have thrown away last year.

If you want the rest of the thinking that goes with it, start with how to pick a hand in the first place, then come play a few rounds with us while you practice. Counting gets easy fast. It just needs reps.