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Chess Puzzles: Tactics Trainer
Train smarter. Improve faster.
Your personal tactics coach, powered by serious tools: adaptive training, smart hints, and engine analysis across 5M+ puzzles, matched to every level from 400 to 2700+ — so progress actually sticks.
Everything you need to master chess puzzles
A complete training system — from the next perfect puzzle to the proof you're improving.
Adaptive engine
Adaptive training across 5M+ puzzles
No two players plateau the same way. Chess.PhD reads your rating and your results in real time and serves the next puzzle right at the edge of your ability — five million positions deep. You never run out, never coast, and never waste a rep.
Coach guidance
A coach who explains every move
Like training with a coach who never gets tired. Clear, human explanations reveal the idea behind each position — what to look for, why the winning move works, and the principle to carry into your next game. You understand, not just memorize.
Smart hints
A nudge when you're stuck — never the answer
Blanking on a position? A hint points you to the key square or motif — just enough to keep you thinking instead of guessing. You find the solution yourself, so it actually sticks.
Refutations
See exactly why a move fails
Wrong move? Don't settle for a red X. The engine instantly shows the refutation — the precise line that punishes your mistake — so every miss turns into a lesson you won't repeat.
Continuation
Follow the line to the finish
The key move is only half the story. Step through the full continuation, move by move, and watch the idea play out to a winning finish — so you learn the whole plan, not just the first blow.
Focused training
Drill the patterns that decide games
Forks, pins, skewers, back-rank mates, sacrifices — tactics come in shapes. Focus mode drills one pattern at a time until you spot it on sight, turning slow calculation into instant recognition across all 64 themes.
Progress & stats
Watch your rating climb
Every solve is tracked. Beautiful charts show your rating over time, your accuracy, your strengths and blind spots — plus streaks and achievements that keep you sharp. Visible proof you're getting better.
In the last 30 days
Loved by players
Thousands train with Chess.PhD every day.
Master the tactical patterns
Every pattern explained in plain English — then drilled on real puzzles.
Train smarter. Improve faster.
Start improving today
Join thousands of players sharpening their tactics with Chess.PhD.