How many cells are in a standard sudoku grid?
Answer81
A standard sudoku is a 9 by 9 grid, giving 81 cells.
Challenge · Facts & stats
Challenge Portal facts & stats
7 fact-checked facts about challenges, games and puzzles, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
What size board is used for standard English checkers (draughts)?
Answer8 by 8
English checkers is played on the dark squares of an 8 by 8 board.
Going deeper
How many lines make up each side of a standard Go board?
Answer19
A standard Go board has a grid of 19 by 19 lines, giving 361 points.
How many events are in a heptathlon?
Answer7
'Hepta' means seven: the heptathlon has seven track and field events.
In which year was Arthur Wynne's 'word-cross', widely seen as the first modern crossword, published?
Answer1913
Wynne's puzzle appeared in the New York World newspaper in December 1913.
Expert level
How many checkers does each player have in backgammon?
Answer15
Each backgammon player moves 15 checkers around the board and bears them off to win.
Counting any turn of a face as one move, what is the most moves ever needed to solve a 3x3 puzzle cube from any position?
Answer20
In 2010 a computer search proved every position can be solved in 20 face turns or fewer, known as God's number.
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