Alsothe two-dial clock; the chess clock; the clock nobody stopped
The instructor's brass two-dial chess clock, set to fifteen minutes each: the film's spine, whose two faces always add up to the time left in the film; his flag falls at 20:00 with his fingertip on the rook, and nobody ever stops it.
Episode 4 is built on this clock: its two dials always add up to the time left in the film. Its first sound is a press, its flag falls at 20:00 with the teacher's fingertip on the mating rook, nobody stops it, and in the end black it slows into a heartbeat.
What5 lines
On screenBrass, two faces, red flags, plungers; no maker's name. {E4 0:00; S28}edit
On screenSet to fifteen minutes each: Time: 15 min each. {E4 0:22-0:29}edit
On screenWhite + Black = 30:00 minus the film's time on every frame from 0:10 to 20:00; after 20:00 Black's dial alone reads 30:00 minus t. {E4 0:10-30:00}edit
On screenWhite's tock and Black's tick are the bed of the film: you can always hear whose time it is. {E4 0:00-30:00}edit
RunningHis since childhood, and the clock of Board 14. {E4 MASTER_TREATMENT §1}edit
On screenWhite's flag falls at 20:00.000 with the teacher's fingertip on the rook. {E4 20:00.000}edit
On screenIn the boy's imagination a crayon twin-bell alarm clock shaped like it reads Black's exact time and rings at 20:40: the only bell in the film. {E4 4:34; 20:40}edit
On screenThe alarm card reads 5:00 exactly on 25:00.000, standing on the Duke's box ledge. {E4 25:00.000}edit
On screenNobody stops it; at the real table White reads 0:00, its flag down, and Black runs. {E4 26:15-29:30}edit
On screenThe moth lands on Black's flag on the last picture frame. {E4 29:59.967}edit
On screenBlack's flag falls at 30:00.000: one small click that changes nothing. {E4 30:00.000}edit
On screenIn the end black it ticks on and slows into a heartbeat (64 to 50 bpm); at 30:19.9 a press starts White's clock, the first sound of 0:00. {E4 30:00-30:20}edit
Look2 lines
On screenBrass, two dials, red flags. {E4 0:00}edit
IdeaFor our own reference: brass rubbed pale around both plungers, a dent in one foot from an old fall, a winding key on a ribbon. {lore crew 2026-10-22}edit
RunningIt ran at Board 14.{E4 MASTER_TREATMENT §1}edit
RunningIts dials are on HIDDEN-03 (Black at 10:00, running).{HIDDEN-03 spec}edit
EggThe series' five-minute clock made a real clock: the The Storm Bell's tolls, Nightbot's chime and Rosie's check-ins before it.{E4 5:00-20:00; EGGS_SWEEP}edit
RunningBrass, two faces, red flags; nobody ever stops it; the arithmetic is exact on any paused frame. {E4 QUOTABLES Q-E4-01}edit
Open2 lines
OpenWhose clock it was at Board 14: his own, or the tournament's. {E4 MASTER_TREATMENT §1}edit
IdeaThe crayon alarm clock's ring is the Storm Bell's heir: the only bell in a film that left the bell out on purpose. {EGGS_SWEEP; E4 DECISIONS D11}edit