Puzzle guides
Learn the techniques that make puzzles click, with worked examples from real games on Puzzimo.
- How to solve Sudoku X: making the diagonals work for youLearn to solve Sudoku X (diagonal Sudoku): use both diagonals as extra units, start from the centre, and combine diagonal and box logic. Tips for every level, then play free online.5 min read
- How to solve Jigsaw Sudoku: reading the shapesLearn to solve Jigsaw Sudoku (irregular Sudoku): read the region shapes, use cells that poke into other rows, and apply the rule of 45 to groups of regions. Then play free online.5 min read
- How to solve Mini Sudoku: the quickest way to learn SudokuLearn Sudoku the gentle way: how to solve 4×4 and 6×6 Mini Sudoku step by step, with scanning, last-cell checks and notes. Perfect for beginners and kids. Play free online.4 min read
- How to solve Kakuro: sums, combinations and crossingsLearn to solve Kakuro step by step: one-way sums, the digits a run must or can't contain, and how crossing runs narrow each cell down. Includes a table of unique combinations. Play free online.6 min read
- How to solve Calcudoku: working out every cageLearn to solve Calcudoku step by step: single cells, small division and subtraction cages, factoring multiplication cages and using row totals. Shown for 4×4 to 7×7 grids. Play free online.6 min read
- How to solve Futoshiki: reading the signsLearn to solve Futoshiki step by step: what each < and > sign rules out, how chains of signs push digits to the ends of their range, and how to combine signs with Latin-square logic. Play free online.5 min read
- How to solve Skyscrapers: seeing the city from the edgesLearn to solve Skyscrapers step by step: what clues of 1 and n mean, how far the tallest building can be from a clue, and how opposite clues work together. Play 4×4 to 6×6 free online.5 min read
- How to solve Nonograms: line by line to the pictureLearn to solve Nonograms (Picross, Griddlers) step by step: the overlap method, working from the edges, using ✕ marks and finishing lines. Every puzzle solvable by logic. Play 5×5 to 15×15 free online.6 min read
- How to solve Queens: regions, rows and the cells you can rule outSolve Queens puzzles faster: start with the smallest regions, find regions locked into a row or column, count regions against rows, and mark every neighbour of a queen. Play unlimited Queens free online.6 min read
- How to solve Star Battle: two stars, no touchingLearn to solve Star Battle step by step: why a 2×2 block holds at most one star, how to count regions against rows, and how to place both stars of a region. Play 8×8 and 10×10 free online.5 min read
- How to solve Binairo: pairs, sandwiches and countingLearn to solve Binairo, also called Takuzu or the binary puzzle: pairs, sandwiches, counting to half, and avoiding duplicate rows. Each rule shown on the board. Play 6×6 to 10×10 free online.5 min read
- How to solve Hitori: what to shade and what to keepLearn to solve Hitori step by step: the sandwich and pair patterns, why shaded cells' neighbours stay white, and how to keep the white cells connected. Play 6×6 to 10×10 free online.5 min read
- How to solve Tents: a tent for every treeLearn to solve Tents (Tents and Trees) step by step: mark grass first, use rows of 0, pair lonely trees, and use the row and column numbers to place every tent. Play 8×8 to 12×12 free online.5 min read
- How to solve Light Up: lighting every cellLearn to solve Light Up, also called Akari: use black 4s and 0s, count bulbs around numbers, find cells only one spot can light, and dot the cells that can't hold a bulb. Play free online.5 min read
- How to solve Nurikabe: building islands in a single seaLearn to solve Nurikabe step by step: separate neighbouring islands, wall off finished islands, avoid 2×2 pools, and keep the sea connected. Play 5×5 to 7×7 free online.5 min read
- How to solve Slitherlink: one loop through the dotsLearn to solve Slitherlink step by step: 0s, corner 3s and adjacent 3s, the two-lines-per-dot rule, and how to keep one single loop. Play 5×5 to 10×10 free online.6 min read
- How to solve Bridges: connecting every islandLearn to solve Bridges, also called Hashi or Hashiwokakero: count an island's neighbours, place forced double bridges, avoid closed groups and use crossings. Play 7×7 to 13×13 free online.5 min read
- How to solve Numberlink: connecting every pair, filling every cellLearn to solve Numberlink (the connect-the-pairs path puzzle): start with short and edge pairs, follow the border, avoid dead-end pockets and fill every cell. Play 5×5 to 9×9 free online.5 min read
- How to win at Minesweeper: from first click to cleared boardWin more Minesweeper games: read 1s and 2s, learn the 1-2-1 and 1-2-2-1 patterns, chord to open safe cells fast, and make the best guess when you have to. Play Beginner to Expert free online.6 min read
- How to win at Solitaire: a Klondike strategy that worksWin more Klondike Solitaire games: turn over face-down cards first, empty columns only for a King, don't rush the foundations, and plan Draw 3 differently from Draw 1. Play free online.6 min read
- How to win at Mahjong Solitaire: clearing all 144 tilesClear more Mahjong Solitaire boards: free the long rows from their ends, take blocking tiles early, think before matching three of a kind, and use hints and shuffles wisely. Play free online.5 min read
- How to win TriPeaks: long runs and smart drawsWin more TriPeaks Solitaire games: uncover face-down cards first, choose the card that keeps the run going, use the King–Ace wrap and save stock cards. Every deal winnable. Play free online.4 min read
- How to win Pyramid Solitaire: choosing the right pairsWin more Pyramid Solitaire games: remove Kings at once, choose the right partner for each card, clear the pyramid evenly and make the three stock passes count. Every deal winnable. Play free online.4 min read
- How to win Golf Solitaire: one long run at a timeWin more Golf Solitaire games: look for the longest run before you play, free the columns that hide the cards you need, and save the stock. No King–Ace wrap. Every deal winnable. Play free online.4 min read
- How to win at Reversi: corners, mobility and patienceWin more Reversi games: take corners, avoid the squares next to empty corners, keep your options open with mobility, and save your disc count for the endgame. Play against the computer free online.5 min read
- How to win at chess: principles every beginner should knowWin more chess games: open with the centre, develop pieces and castle, check every threat before you move, and learn the basic checkmates. Practise free against the computer online.6 min read
- How to win at checkers: centre, back row and forced jumpsWin more checkers games: keep your back row, control the centre, use forced captures to set up double jumps, and get kings safely. English draughts rules. Play against the computer free online.5 min read
- How to win at Backgammon: points, primes and the raceWin more backgammon games: make points instead of leaving blots, build a prime in your home board, play the race when you're ahead, and bear off safely. Play against the computer free online.6 min read
- How to win at Hearts: avoiding points, and sometimes taking them allWin more games of Hearts: pass the right cards, empty a suit early, duck tricks with high cards, keep track of the Q♠, and know when to shoot the moon or stop someone else. Play free online.5 min read
- How to win at Spades: bid right, then make itWin more games of Spades: count sure tricks when you bid, play with your partner instead of against them, avoid collecting bags, and know when a Nil bid pays. Play free online.5 min read
- How to solve Sokoban: pushing boxes without getting stuckLearn to solve Sokoban: recognise corner and wall deadlocks, plan where to stand before you push, choose the order of the boxes and cut wasted moves. Play Easy to Hard free online.5 min read
- How to solve Sudoku: from your first puzzle to the X-WingLearn to solve Sudoku step by step: scanning, hidden and naked singles, notes, naked pairs, pointing pairs and the X-Wing, each shown on a real puzzle. Then practise free online.9 min read
- How to solve Killer Sudoku: combinations, cages and the rule of 45Learn Killer Sudoku step by step: cage combinations, locked cages, and the rule of 45 with innies and outies, each shown on a real puzzle. Includes a table of every one-way cage sum.8 min read
- How to win at FreeCell: a strategy that works deal after dealWin more FreeCell games: read the deal, free the aces, keep free cells empty, use empty columns for big moves, and know how many cards you can move at once. Shown on a real deal.7 min read
- How to win Spider Solitaire: building in suit, empty columns and the stockWin more Spider Solitaire games: turn over hidden cards, build in suit, keep an empty column, and deal from the stock at the right moment. Shown on a real deal, with tips for 1, 2 and 4 suits.7 min read