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.


1 Answer 1


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.

  • 1
    $\begingroup$ I don't think you can claim copyright on a chess position. Here's a reproduction of the three positions: i.stack.imgur.com/eAltb.png $\endgroup$
    – r3mainer
    Sep 4, 2014 at 14:23
  • $\begingroup$ You may have a point, I had no clue how to make what you just did, so I'd have to have taken a screenshot... $\endgroup$ Sep 4, 2014 at 14:28

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