Click here to win prizes by solving the puzzle Advent calendar.
Click here to win prizes by solving the puzzle Advent calendar.



The self referential crossword

Fill in the following crossnumber grid so that each clue describes the solution.
For example, if some clues read "TEN DS", "ONE X" and "THREE ES" then there will be ten Ds, one X and three Es in the completed grid. The entries in the crossword include the spaces.


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 Most recent collections 

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

Sunday Afternoon Maths LXV

Cryptic crossnumber #1
Breaking Chocolate
Square and cube endings

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taxicab geometry arrows floors differentiation unit fractions partitions angles cryptic clues doubling people maths coordinates calculus proportion colouring means circles ave chocolate algebra parabolas palindromes wordplay perfect numbers regular shapes trigonometry spheres mean symmetry crossnumbers crosswords percentages dice ellipses advent area shape christmas quadratics square numbers 2d shapes triangle numbers factorials fractions digits cryptic crossnumbers menace folding tube maps rectangles sequences square roots bases number hexagons functions triangles logic multiples sport geometry clocks planes dodecagons coins time complex numbers scales integers irreducible numbers grids division books dates speed cards sum to infinity pascal's triangle numbers odd numbers routes 3d shapes chalkdust crossnumber rugby probability chess lines cube numbers volume perimeter surds money averages indices sums probabilty graphs polygons shapes addition remainders games star numbers squares balancing prime numbers integration multiplication factors


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