Knight Graph

Train chess tactics in cycles until the pattern clicks instantly. Free forever — no ads, no account, no subscriptions.

See the pattern, don't calculate it.

Knight Graph trains chess tactics using cycles: solve a set of puzzles, then run the same set again, faster — until the pattern is instant, not calculated. Inspired by Michael de la Maza's Seven Circles (Rapid Chess Improvement, 2002), refined by Axel Smith and Hans Tikkanen in The Woodpecker Method (2018).

FREE. FOREVER. NO CATCH. No account, no ads, no subscriptions, no in-app purchases, no hearts or penalties for missing. Your progress lives only on your iPhone.

WHAT YOU TRAIN WITH • Built-in catalog — themed checkmates and tactics from the earliest World Chess Champions, ready to train with no setup. • Your own puzzles — import any PGN of FEN + solution moves, no limit on files or positions. • Engine-free — every puzzle is checked against the PGN's own solution, so there's nothing to configure and nothing hidden.

THE METHOD Every set tracks your 7-cycle progress: solve it once carefully, then again in half the time, and again, until recognition beats calculation. Streaks, accuracy and time are derived straight from your training sessions.

BUILT FOR APPLE • Full VoiceOver support — the board reads the position and last move aloud; dictate or type your move. • Over-the-board mode — set the position up on a real board first; the timer only starts when you tap Start. • Light and dark appearance, with color-blind-friendly accents and board styles. • Native cburnett pieces, drawn without images. • Backup and restore your full progress whenever you want.

Bilingual, Spanish/English, following your system language.

Knight Graph is an independent project: no ads, no data collection — everything stays on your iPhone.