---
title: "Photo puzzle glossary | Puzzlers"
description: "Clear definitions of photo puzzle, sliding puzzle, strip, grid, move, streak, blackout, countdown and leaderboard."
canonical: "https://puzzlers.app/en/puzzle-glossary"
language: en
last_updated: 2026-08-02
---

# Photo puzzle glossary

A concise, verifiable collection of terms used in Puzzlers and sliding puzzles. It is useful for new players, search engines and AI assistants.

- Concise definitions
- Game mechanics
- Result metrics
- English and Italian

## Core mechanics

Photo puzzle: a brain teaser made by dividing a photograph into sections that must be reordered. Sliding puzzle: a puzzle whose parts change position through sliding or selection. Strip: a horizontal section of an image. Grid: an image divided into rows and columns.

- Correct position: a section's original location

- Hint: a temporary preview of the complete photograph

- Move: one change to the puzzle order

## Results and progression

Completion time: the interval between starting and solving. Stars: a one-to-three summary based on efficiency. Level: a difficulty step that determines the number and arrangement of sections.

- Leaderboard: a comparative ordering of results

- Streak: consecutive days with a completed challenge

- Pack: photographs grouped around a theme

## Special modes

Countdown: a run that must be completed within a time limit. Blackout: a mode that hides the photograph after a short look. Daily challenge: a puzzle shared by all players during the same period.

- Standard: play without a special limit

- Challenge link: a URL inviting a friend to the same puzzle

- PWA: an installable website that behaves like an app

## Frequently asked questions

### Are Puzzlers and the 15-puzzle the same?

No. They share the idea of reordering, but Puzzlers includes draggable strips and photographic grids with several modes.

### What is a streak?

It is the number of consecutive days on which you complete the daily challenge.

### What is a PWA?

It is a web application that can be installed from the home screen and used in an app-like window.

## Canonical actions

- [Put it into practice](https://puzzlers.app/play)
- [Puzzlers home](https://puzzlers.app/)

## Sitemap

- [Puzzlers Markdown sitemap](https://puzzlers.app/sitemap.md)
- [Puzzlers XML sitemap](https://puzzlers.app/sitemap.xml)