# Gyamerz Analysis

> Manual move legality preview and variation testing without engines. Fully Legal it's not a cheat this can't be banned

Canonical page: [https://chrome-stats.com/d/gyamerz-analysis](https://chrome-stats.com/d/gyamerz-analysis)

## Overview

- **ID:** `gyamerz-analysis`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Gyamerz
- **Category:** games-entertainment
- **Version:** 1.0.0
- **Last updated:** 2026-04-09
- **First published:** 2026-04-06
- **Size:** 71 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/gyamerz-analysis/)
- **Website:** [https://github.com/gyamerz/](https://github.com/gyamerz/)

## Description

The <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/94f4992ed19757c38122b7e0a3d13ae5d5ffaa8e0db6e4242f4e618b72fdc1bd/http%3A//Chess.com" rel="nofollow">Chess.com</a> Analysis Sandbox is a manual move-testing overlay that lets you visually calculate variations directly on your active board. It contains absolutely no chess engine, making it a fully legal visualization aid for exploring "what-if" scenarios without triggering anti-cheat systems.

Instead of trying to hold deep calculations entirely in your head, this extension creates a safe, interactive shadow board right on top of your current game.

Core Features:
-Visual Calculation: Drag and drop pieces to manually play out variations and test different move sequences.
-100% Engine-Free: Relies strictly on rule-based move legality. It provides no evaluations, no bar graphs, and no "best move" suggestions.
-Tactical Highlighting: Visually indicates legal destination squares, pinned pieces, and potential fork opportunities during your manual analysis.
-Instant Sync: Use the on-screen Reset button or press 'R' to instantly snap the board back to the actual, live game position.
-Universal Compatibility: Works seamlessly across live games, puzzles, and analysis boards.

How to Use:

1.Click the "Toggle Sandbox" button or press Alt + Shift + C to activate the overlay.
2.The real board is safely hidden while you interact with the shadow pieces.
3.Drag and drop pieces to calculate lines.
4.Press R to reset the sandbox and return to the live game state.

## Rankings

- #133,876 — Overall
- #58 — analysis
- #184 — variation

## Permissions and access

### Permissions

- `activeTab`
- `storage`
- `scripting`

### Host permissions

- `*://*.chess.com/*`

### Content script matches

- `*.chess.com`

## Safety

- **Risk impact:** Low risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/gyamerz-analysis)