The carpet in those places is always the same. Dark red or dark green, some pattern working away in it so you can't tell what has been spilled on it. It runs down a hallway you could drive a truck through. The doors off it are fourteen feet tall and take two hands to open. Behind them is a room with no windows that was a wedding reception the weekend before.

Inside, two hundred folding tables under a ceiling of recessed cans with a few of them burned out. Somebody has pulled the air walls across, the accordion partitions that cut one ballroom into three. There are two water stations and a stack of those cone-shaped paper cups that will not stand up on their own. They keep the room at sixty-four degrees, cold enough that the kids in short sleeves sit on their hands between moves, and the whole place smells like carpet shampoo over the inside of a plastic chess set.

Out in the hallway the kids sit on the floor with their backs to the wall, killing forty minutes over pocket sets. The parents stand, because there is nowhere for them to sit. Somebody's little brother is asleep on a pile of coats.

You were nine. Twenty minutes before each round they taped the pairings to the wall beside those doors and everybody went at once. The sheet has four things on it. Board, color, name, rating.

A rating is a number for how good you are, and a forecast of what is about to happen to you. Across millions of games that forecast is very good. Across one game, 1043 against 1187 works out to three in ten, and it is printed in the same ink as your name, eight inches from your face.

Three in ten is not none. Ratings that low are soft anyway, because kids improve in jumps and the supplements only come out once a month, and beating somebody two hundred points up moves your own number further than anything else you can do in a day. The system says out loud that it expects to be wrong.

None of which is any use to you at nine. You read 1187 and you hear a verdict. Then you play the verdict for four hours, and afterward the result agrees with the number, which proves nothing, because you helped.

Squint and it stays a number on a wall. The game is whatever it was going to be either way. You have just not been told which one yet.

Your mom taught you. She kept a book of endgame studies, her handwriting crowded into the margins. At nine she had been better than you were at nine. It never came up. Whatever the sheet said, she came back with the board number and nothing else.

You started reading it yourself the year she could not come. You take the first three things and you leave the fourth. Squint hard enough that the right-hand column goes to gray, then find your own name by its shape. It takes about a second. You got good at it.

Seven years go by.

They still tape them to the wall in the morning. But now they also go up online at nine o'clock the night before, so the name reaches you eleven hours early, at home, at a computer with a database on it.

Round four of the winter open. You are sixteen and rated 1764, and you have been chasing the same forty people around the same four hotels since you were nine.

Brennan, K. 1811. You played him once when you were nine, in a room where they were stacking the chairs, and you never found out what he was rated.

Saturday, nine in the morning.

Ten years.

You are twenty-six and you still play four or five weekends a year, in the same hotels, on the same carpet, and so does he.

Pairings still go up at nine the night before. You open the one with his name on it.

The numbers are not wrong. They were never the problem. They are all just here now, before anything has happened, and there is no version of tomorrow morning where you have not read them.

He has run yours. On his phone there is a version of you accurate down to the way you go wrong on move 23 when you are behind on the clock. Before either of you sits down, he has decided what kind of game this is.

Neither of you is ever going to spend a week being wrong about the other one again.

March 2016 came from him, at a vending machine, while the two of you were laughing. Now it is line three.

You were 1043 for an entire Saturday once, and for three weeks after it. The number moves now while you are still shaking his hand.

Your mom still asks what he plays. Now you can tell her before the game, exactly, with a percentage attached. She says huh. Then there is nothing else for either of you to say about it.

It is nine o'clock on a Friday and there is nothing to prepare. You open the database anyway and click through his games one at a time. It takes an hour. Nothing comes of it.