Stockfish 18 NNUE
Modern engine, depth 24, multi-thread when your machine allows it. Strength slider from 1350 to 3200.
Stockfish 18 on your board. Instant eval, a Survival style that prefers safer lines, and optional auto-move. Built for live games.
Runs locally in Chrome. No Chess.com or Lichess APIs.
Modern engine, depth 24, multi-thread when your machine allows it. Strength slider from 1350 to 3200.
Default plays the raw engine line. Survival prefers safer, longer games — fewer speculative sacrifices.
Position score and mate distance update as the search goes deeper, next to the board.
Arrows and a ranked list so you can compare the first, second, and third choice instantly.
Off, Human (natural delay), or Engine (faster). You stay in control of when it plays.
Same panel on both sites. Side-to-move detection for White or Black.
Free to try. Paid plans are unlimited. Crypto checkout is opening as soon as the payment node finishes syncing.
Also available: 3 months for $30. Checkout currently accepts Bitcoin (and altcoins via Trocador once enabled). After payment you receive a license key by email.
After you have a license, you download a zip, open Chrome → Extensions → Developer mode → Load unpacked. We send the build and a short install note with your key.
It biases the engine toward safer, more solid moves so games last longer. Default is the raw best line.
It runs on a normal laptop. More CPU means deeper search, faster. We use what your machine has.
Crypto via our own BTCPay at pay.chessanalysis.site. The Bitcoin node is still syncing — paid checkout goes live right after. Email [email protected] if you want to be first in line.