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My facts & stats

7 fact-checked facts about challenges, games and habits, each with the reason behind it. 5 more are in today's round and join this page after it closes.

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The basics

How many squares are on a standard chessboard?

Answer64

A chessboard is an 8 by 8 grid, giving 64 squares.

How many cards are in a standard deck, not counting jokers?

Answer52

A standard deck has 4 suits of 13 cards each, for 52 cards.

Going deeper

In the widely used 'habit loop' model, what three parts make up a habit?

AnswerCue, routine, reward

The habit loop describes a cue that triggers a routine, which is reinforced by a reward.

Which city hosted the first modern Olympic Games in 1896?

AnswerAthens

The first modern Olympics were held in Athens, Greece, in 1896.

In a round-robin tournament, who does each competitor play?

AnswerEvery other competitor

In a round-robin format every competitor meets every other competitor.

Expert level

How many different first moves can White make in a game of chess?

Answer20

White has 16 possible pawn moves and 4 knight moves, for 20 legal first moves.

What is the official distance of a marathon?

Answer42.195 km

The marathon distance was standardized at 42.195 km (26.2 miles) in 1921.

Know these cold?Today's round is five questions like these, 20 seconds each. Your streak and level follow you to every arena.Play today's round