
37 - The Math Puzzle
Use all seven dice once to build an equation that equals 37.
229 daily number games in your browser, each with a page on how it plays, when it resets and where to play it.

Use all seven dice once to build an equation that equals 37.

Make the target from six numbers, four times a day.

Build a number pyramid where each cell is the sum of the two below it.

Box numbers that add up to 10 and pop them before the board runs out.

A sudoku with grey blocks of cells that work as written-out addition sums.

Watch objects pour into a jar and guess how many, five times a day.

Guess the day's angle in degrees in four tries or fewer.

Find the day's mystery angle, from 1 to 359 degrees, in six tries.

Name the day's angle to the exact degree in four guesses.

Sudoku with arrows: the circled digit equals the sum along its stalk.

Twenty mental math problems, 15 seconds each, one wrong answer ends it.

Twenty mental math problems with three numbers and two operations each.

Start from one number and follow a chain of sums in your head, in 30 seconds.

Guess how a real total splits into slices, then see the true shares.

Guess how many pieces are in the day's LEGO set.

Six quick questions a day, the same for everyone: two maths, two words, two patterns.

Crack the day's secret 4-digit code from bulls and cows clues, with the same code for every player.

Colour hexagons yellow or black so every row hits its target sum.

A daily killer sudoku that starts with no digits, only cage sums.

Fill the cages so each one hits its target with +, ×, − or ÷.

Walk a grid of calculator buttons so your route adds up to the target.

Find the five digits of the day's equation in five tries.

Fill a Latin square so every cage hits its target with +, -, x or ÷.

Cancel cells until every row and column adds up to its target.

Cut a grid of digits into blocks that all add up to the same total.

Five real-world numbers a day: type your best estimate and see how close you got.

A daily letter-sum: every letter hides a different digit.

A small ad-free site of original daily logic puzzles, from Circle Nine to Stitchwords.

Four quick daily puzzles, a number, a word, a city and a picture, scored by how close you get.

Open the lock from someone else's failed attempts and what each got right.

Sudoku-style deduction on a grid of playing cards, scored like cribbage hands.

Fill a crossword-shaped grid of equations so every row and column works out.

A crossword whose answers are numbers instead of words.

A crossword without the words: fill a grid of interlocking equations by pure deduction.

Six numbers, one three-digit target, four operations.

Tap boxes to change their neighbours until every number matches.

Crack the day's secret number code from counts of exact and misplaced digits.

Slide 25 numbers in from the edge so they snake from 1 to 25.

The classic 2048, started from the same grid as everyone else today.

A daily full-size Str8ts whose black cells break the usual symmetry.

Three one-minute brain games a day and a single score out of 100.

Fill a Latin square that obeys every greater-than and less-than sign, on one large grid a day.

Blacken cells so each row and column adds up to its clue, counting each cell by its position.

A daily cross-sum grid: make every run add up to its clue without repeating a digit.

Andrew Stuart's numbered daily kakuro on SudokuWiki, graded from Gentle to Diabolical across the week.

Killer cages on a jigsaw sudoku: sums to hit and irregular regions to fill, once a day.

A daily sudoku where dotted cages give sums instead of starting digits.

A numbered killer sudoku every day from SudokuWiki, gentle on Monday and diabolical by Saturday.