Magic shops sell you tricks. Almost nobody sells you the thing that makes a trick performable — the mathematics, the mnemonics and the reading done so fast and so automatically that you have attention left over for the audience.
These are free browser trainers for exactly that. No sleight of hand, no gimmicks, nothing claimed to be supernatural. Open one and start; there is nothing to install and nothing to sign up for unless you want to save your work or pay for premium features.
A person, an action and an object for every card, drilled to the point where the deck reads itself. Seven stages, ending with the whole pack against the clock.
Start training →Read a grid of face-up cards as a single number without doing binary in your head, then name the one card that changed behind your back.
Start training →Multiplication, squares, roots, dates and cross-checks at speaking speed.
Not moved over yetHearing what is being written from the sound of the pencil alone.
Not moved over yetNotes on method, memory and practice — what the trainers here are doing under the hood, and why.
Read the latest →Getting it right eventually is no use on stage. Your working memory is small and fixed, and anything you are still calculating is stealing room from your patter and your audience. So a correct-but-slow answer explicitly fails here: mastery means three in a row inside two and a half seconds.
Each trainer is a staircase. A stage stays shut until the one below it is eighty per cent automatic, and new material arrives a few items at a time rather than all at once.
Recall nine cards in one run and you have just rehearsed all nine — so the trainer credits them instead of dragging you back through them one at a time. This is the thing a deck of flashcards structurally cannot do, and it is why this gets faster as you get better rather than slower.
Every miss is logged as a pair — what was there, and what you said instead. Practice bends towards the handful of things you actually confuse, and never puts two of them next to each other.
Built by one person, slowly, on purpose.