A game of tic-tac-toe is played on a grid of what size?
Answer3 by 3
Tic-tac-toe uses a 3 by 3 grid; players try to get three in a row.
Games · Facts & stats
Challenge Channel facts & stats
7 fact-checked facts about puzzles, games and competitions, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
Crossword clues are usually grouped under which two headings?
AnswerAcross and Down
Crossword answers run either across (left to right) or down (top to bottom).
Going deeper
How many pieces make up a tangram puzzle?
Answer7
A tangram is a square cut into seven flat pieces: five triangles, a square and a parallelogram.
In tennis scoring, what does 'love' mean?
AnswerZero
In tennis, love means a score of zero.
In standard checkers (English draughts), how many pieces does each player start with?
Answer12
Each player begins with 12 pieces on the dark squares of an 8 by 8 board.
Expert level
In a single-elimination tournament with 16 players, how many matches are needed to find a champion?
Answer15
Every match eliminates exactly one player, so 15 losses are needed to leave one winner.
What is the minimum number of moves to solve the Tower of Hanoi puzzle with 3 discs?
Answer7
The minimum is 2 to the power of n minus 1; for 3 discs that is 7 moves.
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