What Is a Logic Puzzle? Parts, Kinds and a Worked Example
A logic puzzle gives facts and rules, and the answer follows by deduction alone. Its parts, its kinds, what makes a good one, and a classic solved step by step.
Riddle10 blog
Articles about deduction
Pencil and Paper Puzzles: Four Kinds and How to Solve Them
Pencil and paper puzzles explained: placement on a board, tours, grid deduction and liar tables, each with a solved example and a first step.
How to Solve House and Neighbour Logic Puzzles
Turn left, right and next-to clues into tiles on a strip of houses, test the few places each can sit, and finish with one row. Worked example and practice.
Process of Elimination in Puzzles: Rule Out Until One Is Left
How to use the process of elimination in puzzles: list options, cross out what fails, and add a guess-and-check step when you stall. Worked grids.
Knights, Knaves and Normals: Three-Type Logic Puzzles
Knights, knaves and normals puzzles with a truth-teller, a liar and a normal who can say either: a case method, a worked example and a practice puzzle.
Self-Referential Puzzles: How to Solve Statements About Themselves
Test every scenario and keep the one where each statement matches its own truth: liar claims, counting lists, self-counting sentences and sequences.
How to Solve Scheduling Puzzles: Orders, Rounds and Clashes
Turn each clue into a before, after or same-round rule, fix the ends first and fill the rest. A worked ordering puzzle and a round schedule to practise.
Seating Arrangement Puzzles: How to Solve Round and Row Tables
Fix one seat, place locked pairs, split into cases and test each clue. A worked round-table puzzle, the own-seat rule and a practice puzzle with answer.
Hat Colour Puzzles: How to Reason From What Others See
Solve hat colour puzzles by listing every pattern and striking out what each answer rules out. A worked example, the classic game and a practice puzzle.
How to Solve Boat-Placement Puzzles: Find Every Hidden Boat
Use row and column counts and the no-touching rule to find every hidden boat. A clear method, a worked six by six puzzle and a practice grid.
How to Solve Star-Placement Puzzles: Stars That Never Touch
Place stars in every row, column and region so that none touch, even at corners. Five core moves, a worked five by five puzzle and a practice grid.
How to Solve Latin Square Puzzles: Two Moves and a Worked Grid
Fill each row and column with every symbol once. Learn the only-candidate and only-place moves, a full worked grid and a practice puzzle.
Types of Logic Puzzles: Nine Kinds and How to Start Each
Grid, truth-teller, weighing, sliding tile, peg, knight's tour, packing, maze and sequence puzzles: what each logic puzzle type is and how to begin.
Logic Grid Puzzles: How to Solve Them With X and Tick
Mark X for no and tick for yes, use the only-one-left rule and chain clues across the grid. A full worked logic grid puzzle and a practice puzzle.
Truth-Teller and Liar Riddles: How to Solve Them
Assume, test, and look for the clue that rules out the mirror answer. A clear method for truth-teller and liar logic puzzles with worked examples.
The Three Fruits Logic Riddle: Which Fruit Does Huda Have?
Huda has the fig. See how two short clues settle all three fruits, and how to solve small matching riddles with a grid.