Turing machine

Loads the 3-state busy-beaver champion by default: it runs on its own, writes six 1s and halts after 14 steps. Open the debugger (or add ?debug) to pause, single-step one transition at a time, set a breakpoint on entering a state, or watch a tape index. The on-screen panel switches machine (BB-3 / BB-4 / binary increment), writes the cell under the head, and moves the head. Keys: 0/1 write, ← → move the head, Space steps, R resets.

Loads the 3-state busy-beaver champion by default: it runs on its own, writes six 1s and halts after 14 steps. Open the debugger (or add ?debug) to pause, single-step one transition at a time, set a breakpoint on entering a state, or watch a tape index. The on-screen panel switches machine (BB-3 / BB-4 / binary increment), writes the cell under the head, and moves the head. Keys: 0/1 write, ← → move the head, Space steps, R resets.

Loads the 3-state busy-beaver champion by default: it runs on its own, writes six 1s and halts after 14 steps. Open the debugger (or add ?debug) to pause, single-step one transition at a time, set a breakpoint on entering a state, or watch a tape index. The on-screen panel switches machine (BB-3 / BB-4 / binary increment), writes the cell under the head, and moves the head. Keys: 0/1 write, ← → move the head, Space steps, R resets.