"Eight Queen" was a puzzle proposed by Chess player Max Betzel in 1848. On the chess board of 8 × 8 square, 8 pieces of Queen / Queen which can go anywhere in the vertical and horizontal directions ...
The problem first appeared in 1869. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A chess problem that has stumped mathematicians for more than ...
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