Three distinct modes
Queens, knight’s tour and chess minesweeper: rotate across puzzles that train vision, planning and deduction.
Chess Mysteries
Solve. Compete. Climb the ELO.
Next.js · TypeScript · Tailwind CSS2026Alejandro Fernández Camello
Web platform of chess puzzles with three distinct modes, ELO that updates move by move, and a global leaderboard. Beta edition.
Three modes, three ways to think
Each mode trains a different chess muscle: geometric vision, path planning and combinatorial deduction.
Queens Mode
Place every queen on the board so none attack another. Each puzzle has exactly one valid solution.
8 queens, 0 attacks, 1 solution.
Knight’s Tour
Walk a knight across every empty square without revisiting any. A continuous - or closed - path.
One piece. Every square, exactly once.
Chess Minesweeper
Numbers tell you how many pieces attack that square. Place the pieces so every clue checks out.
Clues don’t lie - and neither do the pieces.
Anatomy of a knight’s tour
The knight visits all 64 squares, drawing an L on every step. Watch the path complete itself across the board.
Closed tour: 64 squares, 64 jumps, back to the start.
ELO that shifts with every move
Your rating updates after every single move, not just at the end of a puzzle. Each decision matters - and the leaderboard feels it.
Current rank
#42
Puzzles solved
16
Last delta
+36
Why it sticks
Built for short, competitive sessions. No paywalls, no friction.
Per-move ELO
Your rating moves with every play. A bad move stings instantly; a good one shoves you up the leaderboard.
Global ranking
Compete with everyone else. Public leaderboard with top ELOs per mode and overall.
One solution per puzzle
Each enigma is designed to have a single valid solution. No fuzzy paths: either you crack it or you don’t.
Free account
Sign up, save your progress and pick up where you left off. Your ELO follows you across devices.
Open beta
Under active development: new modes, new puzzles and rating refinements ship every week.
Step on the board
Three modes, live ELO, global ranking. Solve a puzzle and watch your rating move.