What's New

5 October 2026

Help Us Name Our Algorithm

Countdown's numbers round used to have a machine with a name: CECIL, short for Countdown's Electronic Calculator In Leeds. It picked the random target, and the name was a nod to Cecil Korer, the Channel 4 executive who commissioned the show back in 1982.

CECIL was there from the very first episode, on 2 November 1982. Host Richard Whiteley introduced it as the show's answer to ERNIE, the Premium Bonds number picker. Its first ever target was 493, from 4, 6, 7, 10, 3 and 1. Neither contestant got there: the closer of the two reached 500 and took five points for being 7 away. It can be done, though: (6 + 1) × 7 × 10 + 3 = 493. In Rigid Digit, only 493 would count. Watch that first numbers round on YouTube (from 10:06)

Rigid Digit has something similar behind the scenes. Every puzzle you play is built by a program that tries every way of combining the numbers, counts how many routes reach each target, and picks a puzzle that suits the level. It does a lot of the heavy lifting, and it doesn't even have a name. We think it deserves one, and in CECIL's honour, it should spell something.

Our one requirement: every word has to earn its letter, so no sneaking in a "for" or an "and" to make it fit. Here's our shortlist so far:

EDITH

Exhaustive Digit Iteration Targeting Hits

Our front-runner. It's exactly what the program does: it tries every combination until it hits the target. Edith also happens to be one of our earliest and most regular players. Hi Edith!

TERESA

Tries Every Route, Exact Solutions Always

Says exactly what makes Rigid Digit rigid: exact answers only. It's also a nod to Teresa Teng, the much-loved Taiwanese singer.

RIDLEY

Rigid Iteration, Digit Logic, Equation Yielding

Our own name is baked right in.

GLADYS

Generated Logic And Digit Yielding System

Sounds like she's been quietly running things since 1982. Loses a point for the "And".

RUDY

Rigid Utility for Digit Yielding

Short and friendly, but that "for" is doing some heavy lifting.

NIGEL

Number-Input Generation & Equation Logic

Very British game show. The "&" is cheating a little, though.

Which gets your vote? Got a better one? Leave your pick in the comments below. And before anyone suggests it: yes, we considered Rigid-y McDigitface. Sadly, it doesn't spell anything.