ported2browserTHE INDEPENDENT FIELD GUIDE

PUZZLE / WEB-NATIVE

Guess the year.

Use parity, prime factors and digit sums to narrow down a hidden year, with a configuration option for other numerical ranges.

Web-nativePointer first
Open original game ↗ (opens a new tab)

Opens the project’s game host.

Guess the year project illustration
Creator-published Guess the year competition cover, used to identify the original game. It is not a gameplay session completed by this site. Source & credits (opens a new tab)
EXPLORE THIS COLLECTIONPoint & solve ↗

YOUR FIRST SESSION

Your first few moves.

Jump to controls ↓
  1. 01

    See the objective

    Guess a hidden year and compare its mathematical properties with the clues returned by the game.

  2. 02

    Learn the active rule

    The creator lists even or odd status, prime factors and the sum of digits among the clues.

  3. 03

    Make a considered move

    Use the cheat sheet when the clues are unfamiliar, and change the range through the configuration wheel if desired.

KEEP THIS HANDY

Controls at a glance.

Guess entry
Submit a candidate year.
Clues
Compare parity, prime factors and digit sum.
Configuration wheel
Choose a different numerical range.

Find the hidden year from number clues

Guess a hidden year and compare its mathematical properties with the clues returned by the game. The default range covers years from the 13th century.

How the game works

The creator lists even or odd status, prime factors and the sum of digits among the clues. Each round chooses another random number in the active range.

A practical starting point

Use the cheat sheet when the clues are unfamiliar, and change the range through the configuration wheel if desired. Stars reflect performance in the creator’s description.

BEFORE YOU CLOSE THE TAB

What happens to your progress?

A portable save or cross-device synchronization is not established by the reviewed documentation. Check the original game before relying on a later return.

Check the save and backup guide ↗

A FEW USEFUL ANSWERS

Before the next click.

Is there help with the math clues?

The creator provides an in-game cheat sheet.

Does this site’s Saved button keep my progress?

Saved keeps a link to this profile on your device. Game progress belongs to the game and its host.

Follow the source.

Almut Kieffer-Jones. Licence notice. Source and image rights remain with their creators; see notices.

Latest collected source change: Update genres (opens a new tab) . Repository activity does not identify the hosted game version.

All media and source credits ↗
KEEP EXPLORING

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