How to read a boulder problem before you pull on

Standing in front of it

Most people give a new problem about eight seconds. They look at the start holds, look at the top, decide it goes left, and pull on. Then they spend four attempts finding out what the wall was going to tell them for free.

Reading is the cheapest gain in bouldering. It costs no skin, no fingers and no power, and almost nobody practises it deliberately. Here is a method that works indoors and out.

What reading actually is

Reading is not memorising every hold. It is deciding, before you weight anything, what your body is going to do.

That means three answers per move. Which hand goes on the hold. Which foot makes that possible. Which way your hips are facing when you arrive. Get those and the sequence holds together. Get only the hands and you will end up in the standard beginner tangle, both feet cutting, reaching across your own body with the wrong arm.

A useful test: if you cannot say the first four moves out loud in order, you have not read it. You have looked at it.

What the research says it buys you

Two studies are worth knowing about, because they set expectations sensibly.

Sanchez and colleagues, writing in the Scandinavian Journal of Medicine & Science in Sports in 2012, gave climbers a route preview and compared them with climbers who got none. Preview did not change whether people topped out. It changed how they climbed: fewer stops on the way up, and shorter ones. Better climbers got more out of the preview than weaker ones.

Then in 2017, Seifert and colleagues published work in PLOS ONE on how climbers preview. They found distinct styles. Climbers who scanned the route many times, zigzagging around it for a long stretch, did more exploring on the wall and spent more time hanging around static. The more experienced group previewed for less time, worked in ascending order, and climbed more fluently with fewer stops.

So reading does not hand you the send. What it buys is time, and time on a boulder is the thing you have least of. A long, unstructured stare is not the same as a good read, and it may even be a sign you have not settled on a sequence.

Read it in order, from the ground up

Start at the start. Not the crux, not the top.

Find the start holds and check whether it is a sit start or a stand. Then work upwards in sequence, one move at a time, in the order you will actually climb it. That ascending order is the habit the experienced climbers in Seifert's study had, and it is the opposite of what most people do, which is to bounce around the interesting-looking bits.

Two or three passes is plenty. First pass, the hands. Second pass, the feet. Third pass, the body positions that connect them.

Name the holds

Say what each one is, even under your breath. Crimp. Sloper. Pinch. Undercut. Jug that is worse than it looks.

Naming does two things. It forces you to look at the hold properly rather than treating it as a coloured blob, and it gives your memory something to hold onto. A sequence of six named holds is far easier to recall mid-problem than six shapes.

Add the orientation while you are at it. A hold is not just a crimp, it is a crimp facing left, which tells you which hand wants it and which direction you will need to pull.

The feet are the part nobody reads

Almost everyone reads the hands and improvises the feet. It is the single biggest gap in most people's reading.

Look for the small stuff. The smear on the volume, the tiny foot chip that only makes sense once you have committed to a high step. Setters put feet in for a reason, and a problem that feels desperate usually feels that way because you missed one.

Ask a simple question at every move: what has to happen with my feet for that reach to be possible from a still position. If the answer is nothing, the move is probably a jump, and jumps want to be identified from the ground rather than discovered mid-air.

Decide handedness before you pull on

The most common wasted attempt in a gym is arriving at a good hold with the wrong hand.

Walk the sequence with your hands in the air on the ground. It looks daft for about a week and then you stop noticing. Where you have to match, know it in advance and check there is actually room for two hands. Where you have to cross through, know that too, because crossing under is a different move from crossing over and they do not feel the same at all.

If you find yourself reading a hand swap into every third move, that is usually a sign the sequence is wrong. Look for the intermediate you missed.

Find the crux, then read backwards

Every problem has one move that decides it. Find it early.

Then read the finish backwards from the top. Working down from the last hold tells you which hand needs to arrive on the crux hold, and that constraint usually resolves the whole middle section for you. Plenty of sequences that look ambiguous from the ground have exactly one answer once you know which hand has to be free at the end.

Also decide where you can rest, if anywhere. On a longer problem or a circuit, knowing you have a decent hold at move seven changes how hard you are willing to pull at move four.

Outdoors it is a different job

Indoors the holds are coloured and the sequence is a puzzle someone designed to be solvable. Outdoors nothing is marked and the whole face is on.

Chalk helps and chalk lies. It shows you where people have had their hands, but it does not tell you whether they were on the right sequence, whether they are your height, or whether they sent it. Old chalk on a hold nobody uses any more is a classic trap. Use it as a hint, not an instruction.

Read the rock instead. Look for the features, the edges, the change in angle. Work out where your feet go before you leave the ground, because outdoor footholds are much harder to find with a foot than with your eyes. And read the landing while you are down there, since that is the one thing you cannot reconsider halfway up.

Read again between attempts

The first read is a guess. Every attempt after that is evidence.

Come off, sit down, and do the read again with what you have just learned. Which hold was worse than it looked. Which foot slipped and why. Where were you facing when it went wrong. Thirty seconds of that beats going straight back on tired and repeating the same sequence with more effort.

This is where writing things down starts to earn its place. If you log the sequence you settled on, the attempt count and the move that keeps spitting you off, then a session later you are not rebuilding the whole read from memory. That is most of what we built the tracking in Sendit for, and it is more useful on a project you keep coming back to than on anything you flash.

The mistakes worth fixing first

Reading only the hands. Covered above, still the main one.

Staring instead of deciding. If you have been looking for two minutes and have not committed to a sequence, you are not reading, you are worrying. Pick one and test it.

Copying someone taller. Their sequence is a data point, not the answer. If a move looks reachy for you, the intermediate they skipped is probably your move.

Ignoring the finish. More problems are lost to a bad top-out position than to the crux, and the top-out is the easiest part to read from the ground.

What to do next session

Pick three problems well within your grade. Read each one properly, out loud, hands in the air, before touching it. Then climb it and see how much of your read survived contact.

That gap between what you read and what actually happened is the thing you are training. It closes faster than finger strength does, and it costs nothing.