Game Dojo
Game Dojo
Game Dojo is a place to play chess and Othello for free. “Don’t bring the queen out early” in chess, “X-squares are bad” in Othello: we take advice like that, analyse the actual positions, and show what the numbers say.
Chess analysis
Stockfish 18
30 positions, 164 moves at depth 20
Othello analysis
Our own solver
endgames solved to the last move
Othello at scale
400 positions
all 2,617 moves solved exactly
Analysis Lab
Chess and Othello both come with a long tradition of received wisdom. Instead of repeating it, we analyse real positions and compare what each candidate move actually leads to. No estimated figures.
Available games
Both free, no signup. Every move gets evaluated, so you improve just by playing.
The classic game of deep thinking. Every move rated — Best, Good, Mistake, Blunder — with guides from the opening to the endgame.
Enter the Chess Dojo →Simple rules, deep reading. A strong engine evaluates every position, with hints and move scoring to sharpen your play.
Enter the Othello Dojo →Test yourself
Pick the best move on the board. Train your eye for forks, pins, skewers, and mates — a fresh puzzle every day.
Pick one of the three candidate moves and press Confirm to see the answer, explained with an arrow on the board. Want to learn more? Read Essential Chess Tactics.
Test yourself · Othello
From an endgame position, pick the move that wins by the most discs. Every answer is verified by exhaustive engine search. A fresh puzzle every day.
Pick a square and press Confirm to see the answer and the discs it flips. New to Othello? Read the Othello guides.
How we analyse
Every number in our articles is a real analysis result. We do not publish estimated figures.
Positions where the received wisdom is debatable, or where beginners commonly go wrong.
Chess with Stockfish 18 Lite WASM at depth 20; Othello endgames solved to the very last move by our own solver.
Not just the best move but what the alternatives lead to — including one study measured across 400 positions.
What is Game Dojo
Stockfish looks at every chess move; our own evaluation engine does the same for Othello. You can see straight away whether a move was good and what else was available, so playing is practice.
Every move is rated — Best, Good, Mistake, Blunder. See at a glance where the game turned.
Open it and start in seconds. No account, no install.
Played a weak move? Take it back. Compare it with another and see for yourself why one is better.
Works on phone, tablet, and desktop. Add it to your home screen and launch it like an app, one tap.
The more feedback you get, the better you read a position. Good moves start to look obvious.