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- Dijkstra: The Last MileDon't watch Dijkstra's algorithm — play it. Drive a courier through a living isometric city, lose the fastest route to your own instincts, then meet the Dispatcher who floods the streets to find the optimal path every time. Four acts: drive it, watch the frontier, predict the next lock, then break it with a negative cycle.Read →
- Binary Search: The VaultDon't memorize binary search — play it. Crack a vault of sorted dials, burn through guesses by instinct, then meet the Halver who throws away half the search space with every single look and finds any value in O(log n). Three acts — crack it, watch the window collapse, predict the midpoint.Read →
- Quicksort: The Pivot PitSee quicksort actually work — then drive it. Watch the pivot partition an array in place, smaller-left and larger-right; pick your own pivot and feel how its position sets the balance; then feed it an already-sorted list and watch a fixed pivot melt down to O(n²) — and fix it with one random line. Three acts — watch the pivot, pick the pivot, break the worst case.Read →
- Merge Sort: The CascadeDon't read about merge sort — play it. Watch single-element runs cascade upward into one sorted array, merge two sorted halves by hand by always taking the smaller front, then prove the payoff: O(n log n) on sorted, reversed and shuffled input alike — the guarantee quicksort can't make. Three acts — watch the cascade, merge two runs, prove the guarantee.Read →
- BFS: The FloodDon't memorize breadth-first search — play it. Find your own way through a maze, then release the flood that spreads from the start in rings and touches the exit by the shortest path every time, then watch depth-first search dive deep and miss it. Three acts — navigate it, release the flood, BFS vs DFS.Read →
- A* Search: The AscentDon't memorize A* — fly it. Orbit a real 3D mountain, climb it by instinct, then meet the Pathfinder who folds one optimistic guess into Dijkstra's flood so the whole search leans straight at the summit. Four acts in live 3D — climb it, watch the heuristic beat the blind flood, predict the lowest-f pop, then break optimality with a heuristic that lies.Read →