Harvard mathematician solves 150-year-old chess problem
2022-03-01
You know the problem: can you place eight queens on a chessboard so that now two queens threaten each other. There are 92 distinct ways of doing this. But how about on larger chessboards? For 27×27 board people have worked out that there are exactly 234,907,967,154,122,528 ways. Now a HarwardRead More →