Logic Chess: Deduction Puzzle

Train your deductive reasoning every day. Solve the Daily Case and climb the ranks — from Rookie to Mastermind. Can you crack the code?

Pure logic. Zero luck. Master the ultimate deductive brain teaser that combines the spatial strategy of chess with pure process of elimination.

The board is populated. One piece is the secret Target. Your mission? Deduce the exact piece in the fewest moves possible. Apply clever clues to the board based on chess mechanics—Is it on a dark square? Is it a Major piece? Is it being attacked by the White Knight?—and watch as the impossible candidates disappear into the void.

— WHY PLAYERS LOVE IT — 500+ LEVELS & PROGRESSIVE DIFFICULTY From beginner deductions to master-level conditional logic that will genuinely test your reasoning. Early levels teach you the basics, while advanced cases introduce complex conditional clues like "Black/King/Queen" that challenge even experienced deducers.

— THE DAILY CASE— A fresh challenge every single day, just like NYT Mini or Wordle. Your streak is always on the line. Play daily to protect your win streak, complete quests, and unlock massive 7-Day Login bonuses.

— TRAIN OF THOUGHT— Replay every clue step-by-step after solving and see exactly why the answer is what it is. The perfect post-solve satisfaction.

— LEAGUES & TROPHIES— Compete on the weekly Apple Game Center leaderboards. Survive the weekly cut and rise through the Private Eye, Investigator, and Mastermind ranks to prove your deduction skills.

— COLLECT & CUSTOMIZE— Unlock unique chess piece sets and board themes through the Case Shop. Guaranteed odds—no endless grinding. Will you pull the Hologram piece or the Dreamscape background?

— REFER-A-FRIEND— Don't play alone. Share your unique invite code with a friend. When they join, you both instantly unlock the exclusive Cyber Neon cosmetic set!

— NO SUBSCRIPTIONS— Hundreds of hours of content with absolutely no paywalls blocking your progress. Upgrade to VIP Status once to remove all occasional ads and unlock free unlimited undos forever!

— WHO IS THIS FOR? — If you love NYT Games, Wordle, Sudoku, Nonogram puzzles, or deduction board games like Clue—Logic Chess was made for you.

— THE SCIENCE BEHIND IT — Deductive reasoning puzzles maintain cognitive sharpness and improve working memory. Every case you solve is a genuine mental workout.

Download free. Play daily. Become a Mastermind.