Recall what's asked silently. Space to reveal. 1 instant · 2 slow · 3 missed. U undo · F flag for re-encode. Auto-advances.
The real test: memorize a shuffled deck in groups of three — person of the 1st, action of the 2nd, object of the 3rd, one scene per group — then rebuild the order from memory.
Memorize: 18 groups, self-paced — fuse each scene (place it along a mental journey if you use one), then Space or tap for the next. The clock runs from your first look to your last. Recall: click the 52 cards back in order. You get a deck time, a score, and the exact positions that broke.
Order: a fresh random shuffle is the sport. Pick a magic stack instead to learn it — run it daily until 52/52 is easy, then use the stack quiz to weld in position ↔ card.
Your own images beat any preset. Suit = category. Edit freely; overwrite anything that doesn't stick. Editing a facet restarts that pair's drill schedule — a new image is a new memory.
Two cards sharing an image decode ambiguously mid-deck — you'll know the action fired but not which card it was. Make each unique.
Watch the curve bend down. Latency is render→reveal keypress only.
Starting from zero? Read this, then close it and drill. The reps are the teacher — everything here just makes each rep land harder.
Hearts → Diamonds → Spades → Clubs, one suit at a time. Within each suit walk Person → Action → Object → Mixed. 10–15 min daily, honest grading. Don't add a suit until the last one's "slowest cards" list is flat and low.
Lead with your strongest suit, not the first one. As a DJ from '84–'90, the musicians in Hearts are already in your long-term memory — you're not learning "who is Prince," only "Prince lives at King of Hearts." Lightest possible first lift, and your first session becomes a win instead of a slog. That's what builds the daily habit.
Specific sessions, in order. Each is ~10–15 min. One per day is ideal; never cram two facets of a fresh suit into one sitting. The day numbers are a guide — let the dashboard, not the calendar, tell you when a stage is "done" (slowest-cards list flat and low, p75 falling). Click any session to launch it preset.
Early on you'll consciously assemble each card — "MJ… moonwalking… glove." That's scaffolding, and it's fine. The goal is to drill until that assembly wears away and the triplet arrives as a single fused image, not a story. When a card shows sub-500ms latency on the dashboard, it has made that transition. That reflex — card hits your eye, person fires before you can think — is the whole point. No tip shortcuts it; only correct reps under time pressure build it.
During encoding only, invent any silly logical hook to get it to stick ("4 of Clubs / G.I. Joe — four-letter Joe, four-star general"). Use it for the first few exposures, then let the drill sand it away. The hook is a ladder you kick out once you're up — recall itself should never be logical, because logic is slower than reflex.
This is the proper first session — Hearts, Person only. One click starts it. The first session is the only hard one to start.