When preparing for a tournament, most people focus on the technical side. The X-wing is solid, timed puzzle averages look decent, everything feels ready. Then you sit down at the venue and realise something is off — only you can't quite put your finger on what.
A tournament is its own environment. When a round begins, several puzzles are in front of you at once, and under clock pressure you have to decide how much time to give each one. Someone beside you is writing at pace. A mistake from the last puzzle is still knocking around in your head. None of this happens during a quiet session at home.
This article tries to fill that gap: time decisions, the call to skip, score arithmetic, and recovering after an error. Not techniques — context.
Why a tournament puzzle is different from one at home
At home you solve one puzzle at a time, at your own pace, pencilling in candidates whenever you like. A mistake gets erased, no harm done. At a tournament, a single round can hold five to fifteen puzzles, each with its own time limit, and errors hit your score directly. Some competitions ban candidate notes entirely. None of this feels significant on paper — the difference only lands when you're sitting there.
There are competitors around you. You can see someone nearby turning a page. The clock keeps moving. The mistake from the last puzzle hasn't left your head. How you'll respond under pressure isn't something you can know in advance — but knowing it's coming means at least it won't catch you off guard.
Most decisions in a tournament ultimately come down to one thing: time.
How much time to give each puzzle
Going too deep on one puzzle while the others sit untouched, or bailing too early from one you could have finished — both cost you points, but they sting differently. The first leaves you thinking afterwards: those easier puzzles were right there. The second leaves the unfinished puzzle running in your head. Holding this balance across a whole round doesn't become instinctive without enough practice.
When a round starts, spend the first thirty to sixty seconds scanning everything — which looks easy, which looks hard, a rough read is all you need. That scan shapes how you move. On easy puzzles, if eighty per cent of expected time has gone and you're still stuck, pause. On hard ones, if you've passed one hundred and twenty per cent, skipping is on the table.
Three minutes into a puzzle, nothing is opening — part of your brain says one more try. That pull to keep going is the real obstacle to skipping. That feeling is understandable, but it misleads you. Having solved half doesn't mean you should continue; that half might have been the straightforward part, and what's left could take considerably longer.
When deciding, read the situation: if time is comfortable, pressing on usually makes sense; but in the last five minutes, it's better to drop puzzles far from completion and move to the ones closer to done. A half-finished puzzle with time to spare is worth completing. Two minutes in with zero progress, one more approach tried and still no way through — skip it. When the points gap is large, targeting the shorter puzzles tends to pay off more.
The skip decision is part of time management and part of score management at the same time. But scoring deserves its own treatment, because it's tied directly to the format of whichever competition you're in.
Score arithmetic and format rules
The broad principle is simple: finish the easy puzzles first, then use whatever time remains on the hard ones. Knocking out an easy puzzle quickly gives you modest but guaranteed points — in formats with a speed bonus, that margin can end up deciding things. Leaving the hard puzzles until last makes sense both in terms of time and state of mind; wrestling with a difficult puzzle mid-round throws off the whole rhythm.
Strategy on a hard puzzle depends heavily on whether partial credit exists. If it does, filling in as many cells as possible makes sense regardless of how much time remains. If it doesn't, spending a long stretch on a puzzle you clearly won't finish is a straight loss — that time is better used elsewhere.
Before any of that, one thing must be settled: is there partial credit, does a wrong answer lose points, does skipping carry a penalty — without knowing these things, no strategy holds up. Some tournaments penalise incorrect answers; others penalise skipping. Learn the rules during your preparation, not at registration. The scoring system changes every calculation you'll make.
Knowing the scoring system is one thing; acting on it under pressure is another. What most disrupts your balance in a tournament is a mistake — and the way you handle it.
What to do after making a mistake
At home, an error means putting down your pencil, looking at it for a few seconds, and carrying on. In a tournament the same mistake feels different: you need to fix it, and at the same time you want to understand how it happened. The second part is the problem. The place for analysis is after the tournament — analysis done mid-round only consumes time and concentration without giving anything back.
One rule covers it: stop, correct, move on. The question of how you made the mistake belongs after everything has finished. Right now you have neither the time to answer it nor the focus to do so properly.
The person next to you is writing quickly, has turned the page, is already on their second puzzle. That's hard to ignore. But there's something you also don't know: how many mistakes did they make in that puzzle? What does the scoring system do with those mistakes? Their speed tells you nothing. Keeping your eyes on your own grid sounds like a cliché, but mid-tournament it takes real training to manage.
Tournament morning and the start of each round
Sitting down cold on the morning of a tournament isn't a good idea. Starting the first puzzle without any warm-up slows you down and raises the chances of an early error — and that early error sits in your head for no useful reason. A short warm-up cuts this risk: two or three puzzles, medium difficulty, timed. The goal isn't a strong score — it's waking up your scanning reflexes and your note-taking habits. Choosing a hard warm-up puzzle works against you.
When a round begins, the first move shouldn't be diving straight into a puzzle. Spend thirty seconds taking in all the puzzles at once, estimating difficulty, deciding where to start. The plan can change, but starting without one wastes the opening minutes in uncertainty. Beginning with the easiest puzzle is generally sound — an early score builds rhythm. If the first puzzle is too hard and stalls you, the psychological balance of the whole round takes a hit. After each puzzle, look at the clock — not the time you think is left, but the actual time remaining. That glance updates your strategy in real time.
Variant puzzles
At the World Puzzle Federation Championship and similar serious competitions, variants appear alongside classic sudoku. Diagonal sudoku is relatively familiar: both main diagonals must also contain the numbers one to nine — just that one extra constraint, but the diagonal cells become very strong inference points. Irregular sudoku replaces the three-by-three boxes with oddly shaped regions; the rule is easy to grasp, but tracking region boundaries demands visual focus. In the double-grid variant, two grids share a set of common cells, and managing both simultaneously puts a real strain on attention. Colour sudoku appears less often — coloured zones act as an additional constraint, and treating them as an extra information source is usually enough.
Memorising every variant in advance isn't possible and isn't necessary. What's more useful is building this reflex: whenever a new variant appears, your first question should be "what is the core rule and where does it differ from standard sudoku?" Solving one different variant type each day in the final two weeks is enough to embed that reflex — practising the same variant repeatedly sharpens your performance in that one, but doesn't train you to absorb new rules quickly; in competition, it's the second skill that matters.
What good preparation looks like
Tournament preparation has three parts, and each one reinforces the others.
For technical preparation, the strategy guide and advanced techniques page cover the ground from foundational to expert level — there's a dedicated resource for that side of things. Practical preparation means timed puzzles, variant practice, and learning the tournament format in advance; understanding the scoring system in full detail is the critical piece here. Mental preparation is what most people skip: building a warm-up routine, testing your error-handling in real sessions, and practising concentration under pressure through timed training.
A few questions that come up often
Does skipping a puzzle in a tournament affect your score? It depends on the scoring system. In most WPF formats, skipping carries no penalty — you simply don't earn points for that puzzle. But some formats do penalise skips. The same strategy doesn't apply across all formats, so reading the rules before you arrive is simply part of the preparation.
What should you expect from a first tournament? More likely than not, your performance will come in below your actual technical level. If you haven't built the habit of solving under pressure, this is close to inevitable. There's nothing to be embarrassed about — it's extremely common. Knowing it in advance helps set realistic expectations.
Is writing candidates worth it? If the format allows it, usually yes — especially on hard puzzles it makes a measurable difference. But if your writing speed is slow, it cancels out the time advantage. Increasing the speed at which you write candidates is as valuable a practice as learning techniques.
How do you prepare for a tournament? For technique: the strategy guide and advanced techniques page. For practice: timed puzzles and variant training. For the mental side: a warm-up routine and knowing the rules before you show up.
Something will go wrong at your first tournament. More likely than not your performance will fall short of your technical ability — that's normal and nothing to be ashamed of. The ability to solve under pressure only develops under pressure. What doesn't go well tells you exactly where to focus next time — which turns out to be more useful than a good result that taught you nothing.
The sudoku strategies guide is the right place to start on the technical side. Once that's solid, the solving speed article and pattern recognition article go well alongside it.