1. e4
Stockfish 18 · bundled
Full-strength NNUE, the right AVX2 build for your CPU, no manual download. Hash and threads auto-tuned to your hardware on first launch.
LICHESS · STOCKFISH 18
A Windows app for Lichess BOT accounts
Run a 3000+ Elo bot
on your own Lichess
BOT account.
Stockfish 18 is already inside. The GM opening book is already inside. The auto-challenger queues games while you sleep. You pay for days of running time through a Telegram bot — one day, one month, one year — and stop when you want to.
Requires a separate BOT-flagged Lichess account. What that means →
Telegram route unlocks pay-by-days and auto-updates. Direct download ships the same .exe.
Ruy Lopez · Morphy Defence
White to move
You have a BOT account
and want it to play.
You made a Lichess account, ran POST /api/bot/account/upgrade, and now you have the BOT prefix in front of your name. You want it to queue rated games, accept challenges, play in bot tournaments, maybe climb the bot leaderboard.
What you don't want is a weekend of Python, YAML, and API debugging. This is a Windows window with sliders that does all of that for you. Install, paste your Lichess token, click Start.
Interface
What you actually see.
Four tabs. No hidden modes, no setup wizards. Start the bot, point it at Lichess, watch it play.
Start, stop, switch time control.
One green button to go. Pick a preset (1+0, 3+0, 15+10) or set a custom one. Live evaluation, win/draw/loss tally, and the recent move log are visible at a glance.
Paste your token, pick your opponents.
Lichess API token, rated/casual, auto-challenger toggle, minimum opponent rating, auto-resign threshold, Chess960, rematch — all in plain switches. No JSON to edit.
Speed presets and full Stockfish 18.
Pick a Speed preset (Safe → Bullet) and the Move Speed, Move Overhead, and Depth sliders adjust together. NNUE on, opening book bundled, Skill 0–20 for a handicap when you want one.
Hardware, variant, chat — all yours.
Threads and hash auto-tune to your CPU and RAM but you can override. Custom greeting and gg-message, variant lock, preferred color. Tweak once, the bot remembers.
Movelist
What's inside the .exe
Nine moves. No hidden complexity. Everything ships with the installer.
2. Nf3
Polyglot opening book
Weighted GM book ships with the app. Drop your own .bin and swap per profile.
3. Ne6+
Auto-challenger
Queues challenges to online bots while you sleep. Respects Lichess rate limits.
8. d4
Bot Constructor
Visual profile editor. Build a tactical build, a positional build, a bullet build — switch in one click without editing files. Each profile stores its own engine parameters, opening book, and time controls.
4. O-O
Time-control presets
Bullet 1+0, Blitz 3+0, Rapid 10+0, Classical 15+10, or a Custom pair. Accepts Chess960.
5. Re1
Strength dial
Skill Level 0–20, depth cap, move-speed multiplier. Turn Stockfish down for training partners.
6. c3
Auto-resign
Resigns cleanly when eval drops past your threshold (default −5.0). No more flagging dead-lost positions.
7. h3
Live log & eval
Colour-coded logs: connections, moves, engine evals, API errors. Local 1.5.6.1:8282 serves live eval JSON.
+1.4
9. Nbd2
Updates via Telegram
New versions arrive in the support bot as a .exe. One click. Settings and licence stay in place.
Tournament entry
Buy days, not a subscription.
No auto-renewal. No billing cycle. You buy N days, you get N days, you renew when you feel like it.
| Set | Plan | Price | Per day | |
|---|---|---|---|---|
| 1 day | $1 | $1.00 | ||
| 7 days | $3 | $0.43 | ||
| 30 days most picked | $7 | $0.23 | ||
| 90 days | $15 | $0.17 | ||
| 365 days | $30 | $0.08 |
All prices in USD. Paid via DonationAlerts in USD directly — your bank handles any conversion at the current rate.
Rule of the game
One account can play. The other gets banned.
Lichess endorses bots on accounts flagged BOT. Running a bot on a human account is cheating and gets the account closed permanently.
BOT account · OK
Human account · BAN
curl -X POST https://lichess.org/api/bot/account/upgrade \
-H "Authorization: Bearer YOUR_API_TOKEN"
See the full Lichess disclaimer and terms of service.
Notes in the margin
Frequently asked.
- ! How strong is it, really?
- On a modern i7 or Ryzen 7 with NNUE, Stockfish 18 plays at 3000+ in blitz against bots of similar rating. Cap the Skill Level 0–20 to play weaker for training.
- ? Does the app have to stay open?
- Yes. It runs the engine and keeps the Lichess stream open. Minimise it to the tray if you don't want to see the window. Close it and the bot stops.
- !? Can I use Leela or my own engine?
- Yes. The Engine tab has a path field. Any UCI-compatible binary works — Stockfish, Lc0, anything.
- ?! One license, how many machines?
- One at a time. Two transfers per month via support if you change computers. Need two simultaneous — buy two keys.
- ! What if Lichess changes the API?
- We ship an update through the Telegram bot. If the break is long, active subscriptions are extended by the outage.
- ?? Will my main Lichess account get banned?
- If you run this on your human account — yes, immediately. That's cheating. Make a separate BOT-flagged account. That's the entire rule.
- ? Refunds?
- Within 7 days of first activation if the software failed to work and support couldn't fix it. See the refund policy.
- ! macOS or Linux?
- Windows 10/11 x64 only for now. A port isn't scheduled.
♔
Endgame
Your bot is five minutes
and one Telegram message
away.
v1.5.6 · Windows x64 · 5.0 MB · Requires .NET Desktop Runtime 9.0 · License activates via Telegram bot after install.