Happy Life Games

Puzzle game guides, strategies and tips

Stuck on a level of a sorting, parking or line-drawing puzzle? Our guides explain the rules, the beginner moves and the techniques that get you through the harder levels. We also cover the classic ideas behind these games, from the Tower of Hanoi to Euler paths.

Every game guide comes with its own playable version, built by our team, so you can try a technique the moment you read about it. It runs free in your browser, with nothing to download.

Sorting Puzzles

Sliding & Parking Puzzles

Path & Line Puzzles

✏️
One-Stroke Puzzles and Euler Paths: The Königsberg Bridges and the Odd-Vertex RuleHow Euler solved the Königsberg bridge problem in 1736, the odd-degree vertex rule for drawing in one stroke, and how to use the idea in path puzzles.
Color Link Strategy: How to Connect Every Pair and Fill the BoardRules and strategy for Color Link: connect matching dots with pipes, fill every cell, and find the pipe that has to take the long way around.▶ Playable
Gear Machine Guide: How to Build a Gear Train That WorksHow meshing works in Gear Machine, why gears jam or spin the wrong way, and a step-by-step method for linking the motor to every contraption.▶ Playable
How to Beat Mow The Grass: Sliding Mower Puzzle StrategySwipe the mower, slide until it hits a hedge and cut every patch. Learn how to plan routes, save dead ends for last and finish within par in Mow The Grass.▶ Playable
How to Play Pipe Connect: Rotate the Pipes and Water the FlowerLearn the rules of Pipe Connect, how to read the board from the tank down, how to beat par on taps, and how to route around bolted pipes.▶ Playable
Light Path Guide: Bounce the Laser, Light Every CrystalHow Light Path works: placing and flipping mirrors, tracing the beam, avoiding bombs, and using filters, prisms and one-way glass in later levels.▶ Playable
One Stroke Paint Guide: How to Cover Every Cell in a Single LineHow to solve One Stroke Paint puzzles: the rules, how to spot dead ends early, the checkerboard trick, and how to back up without starting over.▶ Playable
Rope Twist Guide: How to Untangle Every RopeLearn how twists work in Rope Twist, which way to drag each animal, and the leapfrog trick that clears double twists in fewer moves.▶ Playable

Matching & Tile Games

Bubble Shooter Guide: Aiming, Bank Shots, Dropping Stars and Using BombsMaster our Bubble Shooter: aim with wall bounces, swap bubbles, cut clusters loose to drop stars, get around stone bubbles and chain bombs.▶ Playable
Candy Match Strategy Guide: Special Candies, Jelly, Frosting and CherriesLearn how Candy Match works: making striped candies and color bombs, powerful combos, and how to beat jelly, frosting and cherry levels within your moves.▶ Playable
Find The Difference: How to Spot Every Change FasterA practical guide to Find The Difference: the seven kinds of changes, how to scan a scene, avoiding look-alike traps and keeping your hearts in later levels.▶ Playable
How to Play Fruit Tile Match: Tray Management, Layers and Hidden PilesLearn the rules of Fruit Tile Match and how to plan your tray, read stacked layers, handle locked slots and hidden piles, and avoid filling up.▶ Playable
How to Solve Block Fill Puzzles: Rules, Strategy and TipsLearn how to fit every colored block into the carved slot in Block Fill, with tips on corners, pegs, notches and finding the one arrangement that works.▶ Playable
Marble Zuma Guide: Aiming, Combos, Gems, Stones and Power MarblesLearn how Marble Zuma works: aim from the idol, swap marbles, trigger chain reactions, rescue gems, crack stones and time the reverse and slow marbles.▶ Playable
Pet Connect Guide: The Two-Turn Rule, Rocks and Picking the Right PartnersHow to play Pet Connect, an Onet-style matching game: master the two-turn path rule, use the outer lane, work around rocks and pair groups of four.▶ Playable

Number & Logic Puzzles

🔢
Sudoku Solving Techniques: From Naked Singles to Pointing Pairs and X-WingA step-by-step ladder of Sudoku techniques with worked examples: singles, naked pairs, pointing pairs, box-line reduction and the X-Wing.
2048 Merge Puzzles: How to Reach the Target Tile in Few MovesHow our move-limited 2048 puzzles work: merge rules, why the biggest merge is often a trap, how stones change a board, and how to plan every swipe.▶ Playable
Block Blast Puzzle Guide: Clearing Gems With a Fixed Set of PiecesHow to solve Block Blast puzzle levels: plan every piece in the round, aim lines at the gems, and handle ice, stones and multi-round levels.▶ Playable
Brain Teaser Guide: How to Think Through Trick QuestionsA guide to Brain Teaser's trick puzzles: the kinds of tricks it uses, how to read each question, and what the free nudges and the hint tell you.▶ Playable
Cake Slice Guide: How to Cut Equal Pieces and Split the CherriesTips for Cake Slice: how straight cuts and accuracy work, how to make 3, 5 or 6 equal pieces, and how to give every piece one cherry with only a few cuts.▶ Playable
How to Play Sudoku: Rules, Solving Steps and Tips for BeginnersLearn Sudoku from 4x4 to 9x9: the rules, how cross-hatching works, the techniques each level teaches, and how to finish a grid without guessing.▶ Playable
Pull The Pin Guide: How Gold, Water, Lava, Bombs and Monsters InteractLearn every reaction in Pull The Pin, how to work out the right pin order, and why the pin under the gold is usually the wrong one to pull first.▶ Playable
Wiggle Garden Guide: Golden Worms, Flipping Gates and Escape OrderHow Wiggle Garden works: tapping worms out of the bed, why the golden worm flips every gate, and a simple method for choosing the escape order.▶ Playable

Merge Games

Physics Puzzles

🎯
How to Think About Physics Puzzles: Angles, Timing, Momentum and GravityA player's guide to physics puzzles: reading bounces, choosing the order of cuts, using momentum and gravity, and fixing shots with small adjustments.
Bowling Strike Guide: Spares, Hooks, Posts and Black PinsHow our Bowling Strike puzzles work: positioning, swipe angle and hook spin, picking up spares and splits, steering around posts and avoiding black pins.▶ Playable
Brick Breaker Guide: Aiming Volleys, Gaps, Steel, Bombs and LasersHow our Brick Breaker works: aim a stream of balls, beat the shot limit, slip balls behind walls, bank off the sides and use bombs and lasers.▶ Playable
Carrom Master Guide: Aiming, Power, Cushion Banks and the QueenHow to play our Carrom Master puzzles: placing the striker, reading the aim guide, using cushion banks, two-in-one shots and freeing the red queen.▶ Playable
Crayon Cruiser Guide: Drawing Roads Past Boulders, Mines and Ink PotsHow to draw a winning road in Crayon Cruiser: manage limited ink, hug boulders, go over or under mines, refill at ink pots and avoid flips and stalls.▶ Playable
How to Play Feed The Monster: Rope Cutting, Timing and Star TipsLearn how rope cutting works in Feed The Monster, when to cut for a perfect swing, and how hooks, spikes and bumpers change each level.▶ Playable
Mini Golf Guide: Power Control, Bank Shots and Beating ParHow our Mini Golf works: the pull-back putt, how fast the ball can enter the cup, sand, water, bumpers, the windmill, and how to sink holes under par.▶ Playable
Portal Gun Guide: Two Shots, Blue In, Yellow OutHow our Portal Gun puzzle works: where portals can go, what knocks a bad guy out, and how to plan both shots before you fire the first one.▶ Playable
Ricochet Shot Guide: Bank Shots, Lining Up Targets and Barrel ChainsLearn how bullets bounce in Ricochet Shot, how to hit hidden targets with bank shots, line up several at once, and set off barrel chain reactions.▶ Playable
Save The Doge Guide: Where to Draw the Line to Stop the BeesHow Save The Doge works, how the bees move, and where to draw your one ink line so the doge survives all eight seconds, from domes to hive traps.▶ Playable
Sheep Herder Guide: How to Herd Every Sheep Into the PenLearn how the sheepdog moves the flock in Sheep Herder, how to handle black sheep, bell sheep, lambs, clover and the wolf, and how to earn three stars.▶ Playable

Creative & Picture Puzzles

🎨
Color Mixing Basics: Light vs Paint, Primaries, Tints and ShadesHow additive (RGB light) and subtractive (paint and ink) mixing differ, what primaries and secondaries are, and how tints and shades help in color puzzles.
🎨
Jigsaw Puzzle Strategies: Edges, Sorting, Piece Shapes and Working in SectionsPractical jigsaw technique for physical and digital puzzles: build the border, sort by color and texture, read piece shapes and finish in sections.
Color By Number Guide: Fast Painting and Solving the ? CellsHow to play Color By Number efficiently, plus a clear method for the mystery ? cells that uses neighbors and paint counts instead of guessing.▶ Playable
Color Mix Game Guide: Recipes, Ratios and Fewer MovesHow Color Mix works: matching paint ratios, topping up a half-full bowl, when to hit RESET, and how to crack the secret-recipe levels.▶ Playable
Jelly Wall Guide: Every Shape, Flip Walls, Mystery Walls and CandiesHow to play Jelly Wall: the swipe for each jelly shape, when to change, how to read flip and mystery walls, and how to collect every candy for three stars.▶ Playable
Jigsaw Puzzle Guide: Turned Pieces, Chains, Ice and Move LimitsHow our Jigsaw Puzzle works, from the first four pieces to turned, chained and frozen pieces, plus how to plan your placements when moves are limited.▶ Playable
Paper Fold Puzzle Guide: How Creases, Flips and Fold Order WorkLearn how folding works in Paper Fold, why the obvious first fold is often wrong, and how to plan the right fold order to match the picture.▶ Playable
Stamp It! Guide: How to Find the Right Stamping Order Every TimeLearn how layering works in Stamp It!, how to read the goal picture to find which stamp goes first, and a simple method that solves even the 8-stamp levels.▶ Playable

Word & Card Games

Puzzle Basics