Don't watch algorithms. Beat them.
SortSage locks every visualization behind a prediction. Guess the swap count, call the pivot split, bet on the race — then get told precisely where you were wrong. Prediction errors teach more than correct answers.
Daily Puzzle · 2026-08-10not played yet
Intuition Score
0
accuracy-weighted
Predictions
0
0% correct
Bettable points
100
Streak
0d
0 XP
Predictive visualization
Every run is gated behind a guess. Lock in a number, watch it play, then read exactly where your intuition broke.
Make a prediction →Race Arena + odds
Up to four algorithms on identical input, split-screen diff view. Odds are computed from the input's real characteristics — bet points on the winner.
Enter the arena →Rig the Race
Engineer an adversarial array that drags Quick Sort toward O(n²). Successful rigs land in the gallery for others to beat.
Break an algorithm →Practice activity0 active days
LessMore
Why prediction beats watching
- Committing to a number forces a mental model — passive animation doesn't.
- Mid-run interrupts catch the exact moment a pivot choice goes bad.
- Intuition Score is per-category, so weak spots are actionable, not vanity.
- Rigging worst cases teaches complexity analysis by construction.