A Noctie alternative built on your own games
Noctie is a training partner: a human-like AI bot you play against, with feedback on every move, opening practice and flashcard puzzles. Chess X-Ray starts from the games you already played online: it finds the positions where you keep playing the same losing move, and you replay each one as a lesson.
1. e4 e5 2. Bc4 Nc6 3. Qh5
How it works
- Type your usernamechess.com or Lichess. No password, nothing to install: we read your public games.
- Stockfish reads your gamesYour recent games, every time control, and what each of your moves cost.
- Your repeats come outThe positions you keep reaching, where you play the same losing move again and again.
- You replay them as lessonsYour exact position, your usual move in red, your turn to find better, then the right line and the point to remember.
Noctie and Chess X-Ray side by side
| Noctie | Chess X-Ray | |
|---|---|---|
| Games read | Your games against its bot, plus imported games | Your recent games together |
| Sites | chess.com, Lichess imports; web and mobile apps | chess.com, Lichess |
| What you get | A bot that plays like a human at your level, with feedback on every move | The 10 positions where your usual move costs you most |
| Training | Games against the bot, openings, flashcard puzzles from your mistakes | Your exact position, your usual move, then you find better |
| Explanations | Color-coded feedback on each move, lessons | The right line and one idea to remember, in words |
Facts checked on each tool’s own website on 2026-10-30. Features change: check their site before you decide. All the tools compared.
What Noctie does well
Noctie’s bot was trained on human games, so it plays like a person of your level rather than like an engine, across many levels from beginner to master. You get feedback on each of your moves as you play, you can practise an opening or import your repertoire, and set up your own positions and endgames. Your mistakes come back as flashcard puzzles with spaced repetition. It runs on the web, iOS and Android.
Where Chess X-Ray is different
Training against a bot builds good habits in new games. Chess X-Ray looks at the habits you already have: it reads your real games on chess.com or Lichess, finds the positions you reach again and again, and the move you play there every time. Each lesson shows that move in red, lets you look for better, then gives the right line and the point to remember.
Nothing to play first: your username is enough, and the lessons come from games you have already played.
Which one should you choose?
- Choose Noctie if you want a sparring partner that plays like a human, with feedback while you play.
- Choose Chess X-Ray if you want to know which mistakes you keep repeating across all your games, and to replay each one on your exact position until the right move comes without thinking. See how it works.
Frequently asked questions
What is the best alternative to Noctie?
It depends on what you use it for. To play against bots, chess.com and Lichess both have them. To train on the mistakes you repeat in your real games, Chess X-Ray finds those positions and turns each into a lesson.
Do I need to play games on Chess X-Ray first?
No. Chess X-Ray reads the games you already played on chess.com or Lichess, from your username.
Can I use Noctie and Chess X-Ray together?
Yes. Practise against the bot, and fix the mistakes you keep making in your rated games with Chess X-Ray lessons.
Do you need my chess.com or Lichess password?
No. Chess X-Ray reads your games through the public chess.com or Lichess API, using your username. We never ask for your password and never sign in to your account.
Your blunders are already in your games.
Enter your chess.com or Lichess username: we turn them into lessons you replay until you stop making them.