Evaluation

+0.0 --

Stockfish 16 | Depth 0 | NNUE

Opening Book

Opening: (unknown)

Book: On

No book data for this position yet.

Opening / Coach

No book data for this position yet.

0.0

Engine Analysis

Principal Variation:

--

Score: 0.0

Depth: 0

Nodes: 0

NPS: 0

Board Editor

W:

B:

Turn: White Black

Castling:

W-K W-Q B-K B-Q

Game Status

Mode: Human vs Engine

State: Ready

Match: Player vs Engine

Clock: 05:00 | 05:00

State: In Progress

Result:

Moves

Engine

Ready

Play as:

Strength: Full

Game Menu

Moves

Analyze Games

Import games and analyze with Stockfish engine

Platform:

Username:

Games:

Paste PGN:

Load .pgn file

Select a game from your Library to analyze it with Stockfish.

Game Info

Source: -

White: -

Black: -

Result: -

Engine: Stockfish 16

Status: Ready

Analysis

Moves

Load a game to see moves

Caissa Insight

Discover your playing profile by analyzing your games. CAISSA will reveal your strengths, weaknesses, and paths for improvement.

Import Games

From Chess.com, Lichess, or PGN files

Deep Analysis

Stockfish-powered position evaluation

AI Coach Report

Personalized recommendations

What You'll Discover

Accuracy by Phase

See how you perform in opening, middlegame, and endgame

Common Mistakes

Identify patterns in blunders, mistakes, and inaccuracies

Time Management

Analyze how time control affects your play

Win Conditions

Learn what positions lead to your victories

Playing Style

Tactical vs Positional, Aggressive vs Solid

Opening Repertoire

Most played openings and their success rates

Ready to improve your game?

Start analyzing your games now and get personalized coaching insights

Game History

Browse, filter, and manage all your games in one place

Quick Search

Find games by player name, opening, or result

Smart Filters

Filter by source, time control, or date range

Quick Actions

Resume, Share, or Analyze any game with one click

Under Construction

The full game history browser is coming soon!
For now, you can access your saved games through the Library panel.

White Engine

Black Engine

Settings

Move Delay:

ms

Game Status

Ready

Stockfish 16

White Move 0

Stockfish Lite

Evaluation

Stockfish

+0.00 d0 | 0

PV: --

Eval Graph

White Black

Moves

All DOS Chess Games

Play classic MS-DOS chess games via external archive links

Loading DOS chess games...

Play on FICS

Free Internet Chess Server - Play as guest

Connecting to external server: FICS (freechess.org) is a third-party chess server. By connecting, you agree to their terms of service. Guest login only - no account required.

Connection

Not connected

Board

No active game

Opponent

No opponent

Seek a game to find an opponent

Seek Game

Custom Time Control

Minutes

Increment (sec)

Console

FICS Console - Ready to connect...

Discover your playing profile by analyzing your games. Caissa will reveal your strengths, weaknesses, and paths for improvement.

Import Games

Platform:

Username:

Games to Import:

Time Control:

Report Configuration

Number of Games:

Color:

Analyzing Games...

Preparing analysis...

Analysis Summary

What's Working

What's Not Working

Recurring Error Patterns

Key Habits to Build

Your 7-Day Training Plan

Important: This tool checks opponents' public Chess.com account status. An account marked "Closed: Fair Play" indicates Chess.com closed it for fair play violations. This is account-level information, not proof that individual games involved cheating.

Not every loss was a mistake. Some games were played against accounts later closed for Fair Play violations.

This tool uses public Chess.com account status. It does not claim cheating in specific games.

Search Configuration

Your Chess.com Username:

Month (YYYY-MM):

Time Control:

Analyzing Games...

Preparing analysis...

Results

How It Works

We scan your Chess.com games for the selected month
We check each opponent's public Chess.com account status
If Chess.com marks them "Closed: Fair Play", we list them here
This uses only public Chess.com API endpoints - no scraping or private data
Results are informational only and respect Chess.com's fair play decisions

Quick Start Guide

1

Start a Game

Click "New Game" to play against Stockfish or watch Engine vs Engine.

2

Analyze Your Games

Go to Analyze to import games from Chess.com/Lichess or paste PGN.

3

Get AI Coaching

Open Mentor for personalized explanations and learning tips.

4

Save & Review

Use Game Library to save positions and review later.

Navigation Guide

Play

Play against Stockfish engine at any difficulty level.

Analyze

Import and analyze games with move-by-move engine evaluation.

Insights

Get AI-powered game reports and improvement suggestions.

Arena

Watch engine vs engine matches for learning.

Mentor

AI chess coach for explanations and advice.

Game Library

Save and organize your positions and games.

Frequently Asked Questions

How do I change engine difficulty?

In the Play section, use "Engine Settings" panel on the right to adjust Stockfish strength from beginner to maximum.

Can I import my Chess.com/Lichess games?

Yes! Go to Analyze section, enter your username, and CAISSA will fetch your recent games for analysis.

What is Caissa Insight?

Caissa Insight analyzes your games and generates a personalized coaching report with strengths, weaknesses, and improvement tips.

Is my data stored?

CAISSA stores data locally in your browser. Game Library uses IndexedDB. No data is sent to external servers except when using AI features.

How do I use Mentor AI?

Click Mentor in the sidebar, send the current position, then ask questions about plans, moves, or concepts.

CAISSA Mentor

Explanation Mode:

Hello! I'm CAISSA Mentor, your chess learning companion.

Send me the current position and ask any question about:

Position analysis & plans
Move explanations
Strategic concepts
Tactical patterns

Position: Ready to receive position

Library

Downloaded .fen files open in external chess apps (WinBoard, Arena, etc.)

Engine Analysis

0.0

PV: Start a game to see analysis