[ra0x3]

Wait, the instructions are a little ambiguous. I clicked "Solution" and it has the dark-squared bishop on a white square! XD

Should maybe update the instructions to clarify that the dark-squared bishop is not constrained to dark squares.

[loganc2342]

It's a black bishop, but not necessarily a dark-squared bishop. Both the black side and white side in a normal chess game get a dark-squared and a light-squared bishop, and I don't see anywhere that specifies which type this one is. It can be either one depending on where you place it.

[sltkr]

Also if you care that much just mirror the solution horizontally or vertically, and now your bishop is on the white square instead.

[danbrooks]

The instructions likely mean that the bishop itself is black, not the square that it is on.

[dwa3592]

that's exactly what happened to me. I ended up spending so much time thinking black bishop can only go to black squares. and agreed this is a bit ambiguous.

[maest]

You can rotate any solution by 90 degrees, which would toggle the square colour of your bishop, so it doesn't ultimately matter.

[fsckboy]

>thinking black bishop can only go to black squares. and agreed this is a bit ambiguous

sorry, "The task is to place four black queens and one black bishop on the chessboard" is not at all ambiguous.

[NooneAtAll3]

> The task is to place four black queens and one black bishop on the chessboard

where did you read "dark-squared"?