Chess is a two-player strategy board game played on a chessboard, a checkered gameboard with 64 squares arranged in an 8×8 grid. The game is played by millions of people worldwide.
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It's been an important mode of entertainment and education for more than a thousand years.
Pro Boosts memory
You are constantly forced to come up with new offensive strategies or defencive strategies, based on what your opponent is doing. Since there are practically infinite ways to play any situation, you will have to think several moves ahead and remember various possible scenarios that might play out in any possible strategy.
Pro Improves decision making ability
Pro Widely available
And if you can't find a chess board, pieces, and even another player, you can make your own.