# Original daily 4 by 4 number puzzle — PuzzleClub

Canonical: https://agiscorecard.com/workbench/puzzleclub
Language: en
Method version: 2026-09-19.2

Play an original daily 4 × 4 puzzle with one verified solution and share your result.

## How this tool works

Digits 1–4 occur once per row, column and 2×2 box. Seeded generation removes clues only while the solver finds exactly one solution.

## Input format



## Reproducible example

All prefilled business examples are fictional. Replace them with your own checked inputs.

Digits 1–4 occur once per row, column and 2×2 box. Seeded generation removes clues only while the solver finds exactly one solution.

## Limits and assumptions



Browser-based tools · Your inputs stay in this browser. No account, cloud backup or paid membership is provided.

[HTML iframe specification](https://html.spec.whatwg.org/multipage/iframe-embed-object.html#the-iframe-element)