Every other course hands you more to watch and read. The Thinkery coaches you through real questions as you solve them.
Built by MIT and Penn grads.
Our questions. Written, verified, and reviewed by us — never recycled from the real test.
Try it yourself ↓
A real question, coached live
Loading…
The answer is never shown until you get there.
Because difficulty is a disguise, and we measured it rather than guessed.
We took every Problem Solving question across four Official Guides, kept the difficulty band the test maker had already assigned, and classified what was actually going on inside each one.
What climbs with difficulty is concealment. At the easy end the question announces its own method; at the hard end, recognising the method is the question.
Heavy arithmetic is flat across the bands. Ugly numbers are stage dressing, not difficulty. Seven to the 83rd reads exactly like seven cubed, which is why the question you just watched is hard for a reason that has nothing to do with the size of 83.
So our questions get harder by hiding the move, never by making you grind.
Every question is checked before you see it: the answer recomputed from the question’s own text, the wrong options proven wrong, near-duplicates refused, and anything needing arithmetic you couldn’t do in your head thrown out. Then a human reads it.
You’ll know it’s working when you stop reaching for the hints.
Not questions answered, which only measures time spent. Not a percentage correct, which every coach can flatter. The hardest level you solve with no help at all, tracked over your last thirty questions against the thirty before them.
Drift to easier questions and it does not move. Start guessing and it does not move. It goes up when you actually get better, which is the only reason to put a number on a screen.
Which shapes cost you hints, which ones you now take clean, and which one is worth another go tomorrow. Finish a question you struggled with and ask for another of the same shape, in different clothes, and see whether the coaching stuck.
That is the test we hold ourselves to. Not whether the explanation sounded good, but whether you solved the next one alone.
Fifty coached questions free, and the first eleven without an account.
Every one of them checked before it reaches you.
Quant, coached one nudge at a time, every question verified before it reaches you.
Start coaching →Including quantitative comparison, where the skill is deciding sufficiency without computing.
Not open yetSAT and the Executive Assessment come after those two.
No card. Work one problem and see whether the coaching earns its place.
Try the question aboveTen more when you are ready — no card, still free:
Google or LinkedIn, whichever you already have. We never store a password, because we never ask for one.