Sunday, 22 December 2013

chess - How to control the whole board with 8 standard pieces?


How to control the whole board with 8 standard pieces (one king, one queen, two rooks, two knights, two bishops)?


P.S. A piece doesn't control a cell simply by staying on it, so another piece must control it.



Answer



It's a studied problem: Oxford journal page


The three possible solutions are listed at the top of page 4.


Three different chess diagrams where the 8 officers cover the whole board


Also noteworthy: there has been no option found with the bishops on opposing colors.


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