Induction: Logic Deduction

Somewhere inside the box, lodestones are hiding. You can't see them. You can only fire probes into the machine and watch what comes out.

A beam that flies straight through? Nothing in its path. A beam that never comes out? A direct hit. A beam that exits somewhere unexpected? Now you're getting somewhere. Every deflection is a clue!

Induction is a pure logic deduction game in the tradition of the classic Black Box puzzle: a hidden grid, a limited set of probes, and everything solvable by reasoning alone. No luck, no timers, no move-matching. If you love Minesweeper, nonograms, or picross-style deduction, this is that same "aha!" — with beams.

HOW IT PLAYS
• Fire probes into the edges of a hidden grid
• Read the results: hits, deflections, reflections, pass-throughs
• Mark your deductions in the grid until you're certain
• Seal your answer. Clean solves and streaks are tracked.

WHAT'S INSIDE
• Over 1,000 hand-tuned puzzles across notebook collections, from gentle on-ramp to expert codex
• A new Daily Challenge every day. The same puzzle for everyone, and streaks to keep
• A tutorial that teaches by demonstration, not walls of text
• Beautiful vintage-laboratory notebook style

PLAYS ANYWHERE
• Fully playable offline (commutes, flights, dead zones)
• No account required. Sign in with Google or Apple only if you want your progress backed up or synced across devices
• Progress backup and cloud sync when signed in

FAIR & FOCUSED
• Free, supported by ads; rewarded ads are always your choice
• No pay-to-win, no energy systems, no consumable nonsense
• Your brain is the only power-up

From Connexus Digital, the makers of Connexus Puzzles.

Charge the coils. Fire the probe. Find what's hiding.