Logic Islands vs Murder Matrix

Logic Islands is a world of handcrafted deduction puzzles, built by a mathematician and a neuroscientist for people who like a real problem. Not logic grids. Not another Sudoku clone. Not pattern-matching dressed up as a brain game. These are original deduction puzzles in the tradition of Raymond Smullyan's knights and knaves logical puzzles: islanders who can only tell the truth or only lie, and your job is to work out who is who from what they say. From there it gets stranger. You reason about what characters know, what they could have said, what the truth would have to be, and what questions you must ask. Every puzzle is made by hand by a mathematician who has spent over a decade inventing them. No AI, not now, not ever. Each one was tested on hundreds of real people and refined until it was exactly hard enough, the progression exactly right. All explanations are handwritten too. Ten islands, each with its own logic You begin on the island of truth-tellers and liars. Beyond it lie nine more, each with its own residents, its own rules, and its own way of bending the truth. Enter a gallery of deceit, weigh the reliability of up to eight witnesses to a single crime, and learn to ask the right questions of the right people, in the right order. The rules are taught through play, the difficulty climbs toward the genuinely mind-bending, and new islands keep arriving. A fresh trio every day Three new puzzles land each morning, separate from the island puzzles: a warmup, a challenge, and a master. Small enough to fit in a coffee break, but stimulating enough to stay with you all day. Keep your streak alive and climb the weekly and all-time leaderboards against everyone solving the same set. Help at every step, never just the answer Being stuck is part of it, but you are never stranded. Professor Logic gives a targeted nudge when you want one and a refresher on the idea in play. Once you solve a puzzle, he walks you through exactly why the answer holds. You come away understanding how to reason your way through even the most complicated problems. Real reasoning, in the shape of a game The skills here are the genuine article: the deductive reasoning used in mathematics and proof, relied on by anyone who has to think clearly under pressure, and tested on the LSAT and GRE. Propositional logic, knights and knaves, strategic questioning, reasoning about what others know, possibility and necessity, and more exotic logics. You'll learn to read AND, OR, XOR, IF-THEN, NOT, and a great deal more, as fluently as you read English. You will not feel like you are studying. You will just get sharper. Who it's for Puzzle solvers who have run out of things that truly challenge them. People who want more depth from their games. Anyone who loves paradoxes, proofs, or that satisfying moment when one detail forces every other piece into place. People who like a good argument and take pride in thinking things through. Mathematical, philosophical, and computing minds. Anyone preparing for the LSAT or GRE, or just looking to improve their logical reasoning skills. And anyone who misses the feeling of working something out entirely on their own, and wants to protect that. Logic Islands is free to download. You get the first island and your first five days of daily trios free, no account required, no ads. When you want the rest, Logic Islands Pro opens every island, every daily puzzle, and every island still to come, plus personal analytics. Think again. Questions, feedback: hello@logicislands.com Report a bug: support@logicislands.com. Press: press@logicislands.com. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the period. Manage in your Apple ID settings. Restore Purchases is available in the profile settings. Terms of Use: https://logicislands.com/terms Privacy Policy: https://logicislands.com/privacy FOLLOW US: https://x.com/LogicIslandsApp

A murder has been committed. The suspects are assembled. The clues are waiting. Can you deduce the truth? Murder Matrix is a pure logic deduction puzzle game set across atmospheric, beautifully styled locations. Using a grid of suspects, weapons, and rooms, you eliminate possibilities clue by clue — until only the answer remains. HOW TO PLAY Every puzzle deals you a set of handcrafted clues: "the suspect in the Library is not Lord Ashford", "the weapon was found two rooms east of the conservatory", "neither the Colonel nor the Countess used a blunt instrument." Cross-reference each clue against the matrix, strike the impossible, and deduce who committed the crime, with what weapon, and in which room. No guessing. No luck. Pure logic. FEATURES • Handcrafted campaign — 10 cases across Ashford Estate, each harder than the last • 8+ clue types — positional, directional, adjacency, negation, and more • 6 atmospheric locations — each with its own signature pastel colour palette • Elegant grid interface designed for focus and clarity • Unlimited undo — explore freely without penalty • Completely offline and private — no account, no network access, no ads LOCATIONS From the candlelit rooms of Ashford Estate to the glass-domed Garden Conservatory, the candlelit Midnight Lounge, and the spice-scented Apothecary — every location brings a fresh colour palette and a new cast of suspects to the mystery. PERFECT FOR Fans of logic puzzles, Clue / Cluedo, Sudoku, Nonograms, or anyone who enjoys a satisfying whodunit. Download Murder Matrix and start deducing.