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Chess Training Tools – 🧠 Chess Brain Gym
Improve your game with our suite of free online chess training tools, often called the "Chess Brain Gym." From visualization drills to tactical calculation exercises, these interactive resources are designed to eliminate blunders and sharpen your board vision. Train smarter, not harder, to build real playing strength.
🏋️ Gym insight: Tools are useless if you don't know what to train. Don't just click buttons. Focus on the essential skills—vision, tactics, calculation—that actually move the needle on your rating.
These chess trainers support the full improvement framework in the Chess Topics & Training Tools Portal, helping you convert study time into practical skills you can use in real games.
🤖 Full Game Practice – Play Chess vs Computer
Test your skills in a pressure-free environment by playing full games against an adjustable AI opponent.
Put your training to the test. Play complete games against a modern AI engine directly in your browser.👁️ Last-Move & Board-Scanning Trainers
Develop dynamic board vision: instantly see what changed, what opened and what became loose after every move.
Weakness of Last Move
Prophylaxis trainer: identify squares and structures explicitly weakened by your opponent’s last move.
Ideal for avoiding automatic replies and spotting hidden opportunities.
Find Weaknesses
Liberated Piece Hunter
Discovery trainer: spot friendly pieces that have been “woken up” by the last move and gained new lines,
diagonals or files into the enemy position.
Find Discoveries
Killer Common Squares
Convergence trainer: scan around the enemy king to find the key square where multiple attackers converge,
building intuition for mating nets and strong sacrifices.
Target Weakness
Loose Piece Hunter
LPDO trainer: train yourself to instantly notice every loose or undefended piece on the board so you can
generate tactics and avoid simple oversights.
Hunt Loose Pieces
Material Score Rush
Piece-value sprint: instantly judge who’s ahead on material (White, Black, or Equal) and sharpen your evaluation speed.
Play Material Rush
📐 Calculation & Pathfinding Puzzles
Deepen your calculation by finding precise capture sequences and optimal paths for each piece.
Safety Check Trainer
Quickly compare attackers vs defenders (including X-ray support) to test if a capture or sacrifice is
actually safe. Great for avoiding blunders and improving evaluation.
Verify Safety
Queen Muncher Path
Pathfinding puzzle: calculate the cleanest route for your queen to capture all pawns in the correct order
without getting blocked.
Start Munching
Rook Muncher Path
Horizontal and vertical route planning: find the rook’s path to munch every pawn while staying mobile
and avoiding dead-ends.
Find Path
Bishop Muncher Path
Diagonal mastery: discover the complex diagonal route that allows a bishop to pick off all the pawns.
Excellent for improving long-diagonal calculation.
Start Munching
Knight Muncher Path
Calculate the L-shaped jump sequence that visits and captures all targets. Builds knight intuition and
concrete calculation skills.
Start Munching
Pawn Muncher Optimiser
Optimization challenge: guide a pawn to capture the maximum possible number of enemy pawns. Helps you
visualise promotion races and pawn breaks.
Maximize Score
King's Perilous Path
Calculate a safe route for the king to capture all pawns while avoiding attack zones. Great for endgame
king activity and safety awareness.
Start Rushing
⚡ Tactical Pattern & Forcing-Move Trainers
Train your eyes to recognise checks, captures, threats and tactical motifs instantly.
Check Hunter Trainer
Forcing-move practice: learn to instantly spot every legal move that gives check so you never miss
a forcing resource again.
Find Checks
Capture Hunter Trainer
Scan for all captures for both sides in a position. Builds forcing-move discipline and helps you avoid
overlooking simple tactics.
Find Captures
Major Threat Hunter
Quiet killers: find non-checking moves that create huge threats, such as mate or winning the queen.
Improves attacking imagination and foresight.
Find Threats
Pin Hunter Trainer
Tactical pattern recognition: identify pieces absolutely pinned to the king in one glance and start to
feel where pins typically occur.
Start Hunting
Knight Fork Trainer
Fork geometry: find the square where a knight attacks two or more valuable pieces at once. Essential
for both creating and avoiding forks.
Find Forks
Safe Square Survivor
Speed vision drill: identify a truly safe square for your king or piece before the timer runs out,
training fast evaluation under pressure.
Play Survivor
Knight's Minefield
Navigate a field of enemy pawns with a knight. Great for practising safety awareness, knight jumps
and forward calculation.
Play Game
🧠 Visualization, Memory & Logic Trainers
Develop your “mind’s eye”, blindfold skills and pure board geometry.💡 How to "See" Without Moving Pieces
These tools test your memory, but true visualization is a technique you can learn. If you find yourself "losing the picture" in your head after 2 or 3 moves, this course will teach you the specific methods masters use to hold clear images.
Invisible Knight Trainer
Blindfold-style exercise: follow an invisible knight’s jumps purely in your head. Ideal for improving
internal board representation.
Start Visualization
Square Color Visualizer
Master light and dark square recognition without seeing the full board. Builds fundamental visualization
and pattern memory.
Start Training
Flash Memory Trainer
Memorise a random position in seconds and then reconstruct it perfectly. Strengthens short-term board
memory and calculation stability.
Test Memory
Knight's Tour Puzzle
The classic knight tour puzzle: can you visit every square exactly once? Great for deep knight pattern
familiarity and logical planning.
Play Puzzle
Eight Queens Challenge
Logic puzzle: place eight queens on the board so that none attack each other. Helps your general
combinational and spatial reasoning.
Solve Puzzle
Eight Rooks Puzzle
Non-attacking rooks puzzle – a perfect warm-up for more complex logic challenges like the Eight Queens.
Play Puzzle
Raging Rook Control Trainer
Max-control challenge: place a rook to attack the maximum number of squares given fixed obstacles.
Excellent for visualising lines and influence.
Max Control