Kevinvariant

Oxbridge admissions test prep for the TMUA and ESAT, and olympiad prep: original papers with full solutions, and tools for practising them properly. A little every day adds up.

New here? How difficulty ratings and locked papers work.

Drag a vertex Triangle, incircle and circumcircle, with Euler's formula checked live

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New this term

ESAT mock Set E: Mathematics 1, Physics and Mathematics 2

The newest ESAT set, with extra functions, graphs and integration: 27 varied questions in 40 minutes per module, unfamiliar problems that need a new strategy on the spot, and diagrams throughout. Set A is the warm-up and Set B the hardest.

Smart Practice: questions that fit your level

FreeTMUA

Each question is chosen to suit your level as it changes. At the end you see an estimate of your level, your strongest and weakest topics, and what to practise next.

Confidence calibration

FreeTMUA

TMUA has no negative marking, so knowing when you are guessing matters. Say Guess, Unsure or Sure before each answer is checked, and Progress shows whether your confidence matches your results.

Trap Map: the mistake behind each wrong answer

FreeTMUA

When a wrong option in Drill, the question bank or Review comes from a common mistake, the site names that mistake. Your most frequent traps collect on the Progress page, each with a short drill to clear it.

UKMT Senior Mathematical Challenge 2026: full solutions

FreeOlympiad

Solutions to all 25 problems, with every diagram redrawn in tkz-euclide. No code or account needed.

How it works, in brief

One difficulty scale

Every question is rated from 4.5 to 9.0, and every paper on the same scale.

How ratings are worked out · Where to start

Almost everything is free

  • Free TMUA Sets A to D, the ESAT mocks, every tool and every olympiad paper, with no account needed.
  • Locked TMUA Sets E onwards. Unlock them with a code from an Instagram challenge, or with coins in the Shop (every locked set except J).

Free and locked papers in full

Beyond the Incenter book cover
The book

Beyond the Incenter

A modern monograph on olympiad geometry, from the triangle's five centres to projective geometry, radical axes and spiral similarity.

About the book Sample chapter