Blindfold Knight
A text-only trainer for knight moves and board visualization. No board — just squares, moves, and your mind's eye.
Play at blindfoldknight.com →Memory · Visualization · Calculation
Train the board you can't see.
Free, minimalist tools at the intersection of chess memory, board visualization, and calculation. No pieces on screen — just notation, recall, and concentration.
Queen Capture
Hunt the queen with your knight, blindfolded. Never land on a square she attacks. Builds long-range piece vision and ray awareness.
Play at queencapture.com →
Blindfold Simul
Replay famous games blindfold — on one board, or many at once. Start with a single game to build your recall, then stretch to several and keep every position alive in your head.
Play at blindfoldsimul.com →Play anywhere
Even offline.
All three tools work as standalone apps and keep running without a connection once you've opened them. Add them to your home screen for full-screen play — perfect for flights, subways, or spotty reception.
iPhone · Safari
Tap Share → Add to Home Screen
Android · Chrome
Tap Menu (⋮) → Install app