Bal is a Knights & Knaves logic puzzle game. You meet a group of people — knights always tell the truth, knaves always lie — and figure out who is who from their statements.
Features:
• Thousands of puzzles with classic and whodunit modes
• Adaptive difficulty — puzzles matched to your skill level
• Multiple puzzle types: normals (wildcards), sanity/belief, compound statements
• Track your rating and compete on the ranking
Sign in with Google, Apple, GitHub, or Discord. No ads, ever. Currently free to play, may add in-app payments for unlimited puzzles or new puzzle types in the future.
What's new (v1.6.0)
• New mode: 2-4-6 — probe integer sequences to discover the hidden rule, then build your guess from chip-shaped predicates and submit. Five verdict states (solved, equivalent, close, etc.) with rating and a probe trail
• Knights & Knaves: added a Share button to the result screen so you can post your solve time and proposition count
• Display name screen: added a "Login Instead" option for players who already have an account on another device, so they can sign in without first picking a throwaway name
• Knights & Knaves: changed the guilt constraint wording to "The person/people who committed the crime are a knight/knave" so it's clear the constraint covers one or more guilty parties
• Tutorial: added 3 sanity-puzzle levels covering the four type/sanity combinations, belief statements, and a conditional that pins both axes. The K&K tutorial is now 16 levels