In chess, your second is the one who prepares you, studies with you, and has your back. The best players in the world have always had one. Now you do too.
Large language models are wonderful at conversation and unreliable at chess: they will confidently invent a move that loses. So we let the AI do only what it is brilliant at, understanding you, explaining clearly, and talking like a real coach. It never makes the chess up.
The strongest engine ever built, the one that beats the world champion every single game. Every move, evaluation, and line your coach shows you is checked by it. Grounded, not guessed.
Connect your account and it reads every game you have played. It finds the patterns that are actually costing you, the bishop you keep trading off, the openings you drift in, the winning endgames you let slip, and it tracks them over time, so the lesson this week is the right one.
No rating-band platitudes. The work is yours, drawn from your own board.
Same engine-verified truth underneath. Completely different way of teaching it.




You do not have to guess what to study. The coach reads your whole history and surfaces the handful of games most worth reviewing this week, each with a reason in their own voice. Every game already analysed, ready to walk through.

Walk any game move by move. The coach narrates the quiet stretches and stops you at the moments that decided it.

Targeted puzzles pulled from your own recurring mistakes and a library of millions, so you train exactly what you get wrong.

Structured teaching on any concept, from forks to king safety, scaffolded to the level you are genuinely at.

Your whole repertoire mapped: what you play, what you drift into, and the lines that keep giving you trouble.

The coach talks you through a game in their own voice, pointing at the board as the story unfolds.

Stockfish under every claim, every arrow, every "you should have played" backed by the strongest engine alive.
MySecond is a chess coach built from the best of human chess and the strongest engine ever made. And, unlike anything else, it actually knows your game.