17 lines
1.5 KiB
Plaintext
17 lines
1.5 KiB
Plaintext
'''[[wp:Chess960|Chess960]]''' is a variant of chess created by world champion [[wp:Bobby Fischer|Bobby Fischer]]. Unlike other variants of the game, Chess960 does not require a different material, but instead relies on a random initial position, with a few constraints:
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* as in the standard chess game, all eight white pawns must be placed on the second rank.
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* White pieces must stand on the first rank as in the standard game, in random column order but with the two following constraints:
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** the bishops must be placed on opposite color squares (i.e. they must be an odd number of spaces apart or there must be an even number of spaces between them)
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** the King must be between two rooks (with any number of other pieces between them all)
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* Black pawns and pieces must be placed respectively on the seventh and eighth ranks, mirroring the white pawns and pieces, just as in the standard game. (That is, their positions are not independently randomized.)
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<br>
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With those constraints there are '''960''' possible starting positions, thus the name of the variant.
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;Task:
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The purpose of this task is to write a program that can randomly generate any one of the 960 Chess960 initial positions. You will show the result as the first rank displayed using either the [[wp:Chess symbols in Unicode|chess symbols in Unicode (♔♕♖♗♘)]], the letters '''K'''ing '''Q'''ueen '''R'''ook '''B'''ishop k'''N'''ight, or the corresponding letters in a language other than English.
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<br><br>
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