Chess Training Reimagined
Master Chess. Every Move Counts.
Train openings, solve puzzles, play multiplayer, and climb the leaderboard. Your complete chess companion — from first pawn push to checkmate.
Features
Everything you need to level up
From your first opening to competitive play — CheckmateX has every tool to master the game.
Openings Trainer
Master 50+ openings with interactive variation trees. Learn the theory, drill the lines, track your progress.
Play Online
Challenge players worldwide in real-time. Blitz, rapid, or classical — find your match and prove your skill.
AI Bot
Practice against Stockfish at any difficulty. From beginner-friendly to grandmaster-level analysis.
Puzzles
Sharpen your tactics with daily puzzles, puzzle rush, and a curated journey from simple to complex.
Leaderboard
Climb the ranks across ELO, mastery, and puzzle ratings. See how you stack up against the world.
Chat & Community
Connect with fellow players in real-time chat. Share analysis, discuss openings, and make friends.
Interactive Training
Learn by playing
Watch the Italian Game unfold — one of 50+ openings you can master with CheckmateX.
Italian Game
C50
Openings
Variations
Achievements
Frequently Asked Questions
Is CheckmateX free to use?
Yes, CheckmateX is completely free. All features including online play, puzzles, openings trainer, and AI bot are available at no cost.
What chess openings can I learn on CheckmateX?
CheckmateX features 50+ chess openings with interactive variation trees, including the Sicilian Defense, Italian Game, French Defense, Caro-Kann, Queen's Gambit, and many more.
Can I play chess online against other players?
Yes, CheckmateX offers real-time online multiplayer in Blitz (3+2), Rapid (10+5), and Classical (30+10) time controls. You can also create private lobbies to play with friends.
How does the AI bot work?
CheckmateX uses Stockfish, the world's strongest open-source chess engine. You can adjust difficulty from Beginner (800 ELO) to Stockfish Max (2800 ELO) across 10 levels.
Are there daily chess puzzles?
Yes, CheckmateX offers a new daily puzzle every day plus a Puzzle Trouble mode where you solve as many puzzles as possible under time pressure to improve your tactical vision.
Blog
Latest from the board
Chess tips, opening guides, and strategy breakdowns to improve your game.
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Ready to play?
Join thousands of players training with CheckmateX. Free to download, packed with features.
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Google Play