Puzzles for ages 7–9
Maths and logic puzzles that suit children of about 7 to 9 (Years 3–4): counting, adding and times tables, patterns and first logic puzzles with friendly rules. Every one starts at an easy level and works on a tablet.
Where to start
New to these? Begin with Shape Sudoku, Pot of Gold or Number Pyramid — the gentlest rules here — then work along the list. Every puzzle has easy levels and a guide.
Maths puzzles
Pot of Gold
Start from a number at the bottom of the grid, apply the maths in each cell you step on, and climb to the golden pot with exactly the target number.
Number Pyramid
Fill in the missing bricks by adding, subtracting — or multiplying in the times version. From first steps to algebra.
Hundred Square Pieces
Pieces of a number square with the numbers rubbed out. Use place value to fill every gap.
Number Chain
Double it, take 7, find a quarter… keep a running total in your head. Four levels from times tables to percentages and cubes.
Sum Circles
Nine squares, four circles. Each circle is the total of the four numbers around it — plus colour totals and a 4×4 challenge.
Make the Number
Six numbers, one target. Combine them with + − × ÷ to make it exactly — or play the kids’ version with four small numbers.
Number Memory
Study numbers in coloured shapes, then answer surprise questions from memory — counting, primes, digits, sums and positions.
Times Grid
A multiplication square with the headers hidden. Divide to find them, then multiply to fill every square.
Number Triangles
Every side number is the sum of the two corners next to it. Find the hidden numbers.
Balance Scales
Shapes on balanced scales — work out what each one weighs. Algebra in pictures.
Number March
Walk from Start to Finish where every step follows a hidden repeating pattern you have to discover.
Magic Sum
Place each number once so every row and column hits its target — by adding, subtracting, multiplying or dividing.
Equation Square
A 3×3 grid of numbers with + − × ÷ between them. Make every row and column equal its answer — a crossword made of sums.
Factor Trail
Find the only trail to the flag, stepping only to factors and multiples, primes, or a times table.
Magic Path
Find every number that fits the rule and join them all in one continuous path.
Dynamic Path
A maths question flashes up: find its answer on the grid and step onto it, building one connected path until every question is answered.
Number Search
A maths word search: work out each clue, then find its answer hidden in a grid of digits — across, down, backwards or diagonally.
Cross Numbers
Squares, primes, multiples, digit sums and links between answers — fill the grid so every maths clue fits.
BODMAS Game
Build equations that hit the target by applying the order of operations correctly.
Maths Crossword
A crossword where every clue is a maths question and the answers are numbers.
Number puzzles
Shape Sudoku
Sudoku with shapes for beginners: every row, column and box has each shape once.
Sudoku
Fill the grid so every row, column and box contains each digit exactly once.
Number Blocks
Fill each block with 1 up to its size. The same number never touches itself — even diagonally. Simple rules, satisfying logic.
Binary Puzzle
Fill the grid with 0s and 1s: never three the same in a row, half of each in every line, and no two rows or columns alike.
Number Regions
Fill in numbers so each joined group of equal numbers is exactly that big. Drag to copy numbers and watch the regions click into place.
Between Sums
Two shaded squares per line, 1 to N−2 in the rest; outside sums count what lies between.
Flexi Cages
Cage puzzles with any set of numbers: fractions, primes, negatives, decimals — even letters.
Sudoku Variants
X, Windoku, Jigsaw, Kropki, XV, Anti-Knight, Anti-King, Non-Consecutive, Even–Odd, Thermo, Sandwich, Arrow, Little Killer, Consecutive and Whisper lines — with notes, hints and a step-by-step solver.
Calcudoku
Fill an N×N grid with 1 to N — no repeats in a row or column — so every cage hits its target using its operation.
Futoshiki
Fill a Latin square so each row and column holds 1 to N once, and every inequality sign is true.
Skyscrapers
Fill the grid with towers so every row and column holds each height once — and the edge clues count how many towers you can see.
Kakurasu
Each shaded square counts its column number in its row and its row number in its column. Make every total add up — addition practice disguised as logic.
Ripple Rooms
Each room holds 1 to its size. Equal numbers in a row or column must be at least that far apart — big numbers make big ripples.
Edge Letters
Place each letter once per row and column; blanks fill the rest. Edge letters show the first letter seen from that side.
Number Crossword
A crossword with no clues — place every listed number so the digits match wherever across and down numbers cross.
Dot Sudoku
Sudoku with dots: white for consecutive numbers, black for doubles, and no dot for neither.
Shading puzzles
Nonogram
Classic picture logic: shade blocks from the number clues to uncover a hidden image — over 300 pictures, colour puzzles and random patterns.
Mosaic
Shade squares so each number matches the count in its 3×3 block — and watch a picture appear. Pictures or random patterns.
Tents
Pitch one tent beside every tree so no two tents touch and every row and column has the right count. Friendly, calm and great for younger solvers.
Sun & Moon
Equal suns and moons in every line, never three in a row — and = or × signs between squares. The signs twist on Binary.
Four Colours
Use four colours so no neighbouring regions share one. Some regions start coloured; there is exactly one answer.
Fleet Finder
Use the row and column counts to locate every ship. Ships lie straight and never touch, even diagonally.
Thermometers
Fill thermometers from the bulb with no gaps so every row and column count is right.
Water Tanks
Fill tanks with water that settles at the bottom and lies flat, so every row and column count is right.
Mirror Maze
Use lines of sight that bounce off mirrors to find every creature. Birds show only directly, fish only in mirrors, frogs always.
Domino Shade
Shade two squares per region so the shading forms dominoes that never touch side to side.
Mine Finder
A minefield part-way through: use the numbers to flag every mine. Always solvable without guessing.
Hidden Snake
Find the snake from its head to its tail using the row and column counts. It never touches itself.
Lighthouses
Hide boats so each lighthouse sees the right number in its row and column.
Hitori
Shade cells so no number repeats in a row or column, shaded cells never touch, and the rest stay connected.
Star Battle
Place stars so every row, column and coloured region has the same number — and no two stars touch, even diagonally. The classic behind today’s daily region puzzles.
Light Up
Place bulbs so every square glows, no two bulbs see each other, and numbered walls touch the right number of bulbs. A lovely glowing puzzle.
Sightlines
Shade squares to block the views so each number sees exactly its count. No touching shaded squares, and whites stay joined.
Magnets
Decide which plates are magnets and which way round. Like signs never touch; the counts give the + and − in each line.
Tetro Shade
Shade an L, I, T or S in every region. Everything joins up, no 2×2 blocks, and matching shapes never touch.
Room Shade
Each numbered room has that many shaded. No touching, white stays joined, and no white line crosses two walls.
Tap Shade
Shade one joined wall. Each clue lists the runs of shaded squares around it; no 2×2 blocks.
Cluster Count
Shade squares so each circle equals the total size of the shaded groups touching it.
Cave
Shade the rock so the cave is one piece, rocks reach the edge, and numbers see the right amount.
Yin and Yang
Fill the grid black and white so each colour forms one connected group, with no solid or checkerboard 2×2.
Loops and paths
Number Path
Start on 1, pass every number in order and cover the whole grid in one stroke — with optional walls in the way.
Number Snake
Fill in the missing numbers so 1, 2, 3 … N form one chain of touching cells.
Bridges
Connect the islands with single or double bridges so each has as many as its number, and every island joins up. Visual, calm and very satisfying.
Domino Hunt
A full set of dominoes is hidden in a grid of numbers. Find where each lies — with given dominoes, checklist clues and a tray to drag from.
Movement Patterns
Each puzzle brings a new piece with its own way of moving — learn the pattern from the demo, then plan a route to every gem.
Pipe Link
Rotate pipe pieces until they all join up: no leaks, no loops, nothing pointing off the board.
Signpost Path
Link every square from 1 to the star — each next one somewhere in the arrow’s direction.
Pair Paths
Join each pair of matching numbers with a path. Paths never cross and must fill every square.
Galaxies
Each galaxy holds one dot and looks the same when spun half a turn around it. Paint the squares — auto-mirror helps — until every galaxy glows.
Train Tracks
Use the row and column counts and the pieces in place to lay a single railway from A to B. No loops.
Fence Regions
Draw fences so every region has the same size; numbers count the fences around their square.
Circuit Paths
Split every dot into separate paths that follow the rules. 25 puzzle types, plus a creator and step-by-step solver.
Rectangles
Divide the grid into rectangles, one number in each, equal to its area. Every clue is a factor-pairs question — great maths practice.
Knight's Tour
Move the knight in its L-shape to collect stars, find the shortest route or visit every square of the board.
Pentomino Regions
Split the grid into pentominoes; matching shapes never share a side, and letters name shapes.
Slant Lines
Draw a diagonal in every square so the corner numbers are right and no loop forms.
Fenced Field
Fence in a field so every number sees exactly the right number of field squares.
Strategy and brain teasers
Sliding Tiles
The classic 8 and 15 tile puzzle, with numbers or pictures. Hints follow the shortest route home.
Traffic Jam
Slide cars and trucks along their lanes to get the red car out of the jam.
Light Switch
Switch all the lights off. Each press flips a square and its neighbours — a classic puzzle with a neat mod-2 solution.
Disc Towers
Move the stack to the last peg without ever putting a big disc on a small one. A classic puzzle in recursion.
Code Breaker
Guess the hidden code of coloured pegs using black and white pins. A classic deduction game.
Matchstick Equations
An equation made of matches is wrong. Move one match to make it true.
Last One Standing
Every move captures. Keep going until one piece is left standing — with pieces that each move their own way.
Peg Solitaire
Jump pegs over each other to remove them; finish with one peg — ideally in the centre.
Logic Grid
Work out who owns which pet, drinks what and plays which sport from a few clues.
Lambs & Tigers
An ancient South Indian hunt game: three tigers try to capture five lambs; fifteen lambs try to trap all three.
Bagh Chal
Nepal's tigers-and-goats game: four tigers try to capture five goats; twenty goats try to trap every tiger.
Nim
Take turns removing objects; play the right move and you can always win — the maths tells you which.
CodeBreaker
Find the hidden 4-digit code from Bulls and Cows feedback — deduce, don't guess.
Questions
How were the ages chosen?
Each puzzle lists the age it suits from its easiest level. Children often enjoy harder levels sooner than you expect — the levels let them grow.
Do they work on a tablet?
Yes. Every puzzle runs in the browser on a tablet, phone or computer, with nothing to install.
Everything else: all puzzles A–Z · how to play every puzzle · maths puzzles for kids · puzzles for the classroom.