# Paint Eleven Squares

I was inspired by this great question: Paint Eight Squares

Given a $$5 \times 5$$ grid of white squares, can you paint 11 of the squares black so that each white square is orthogonally adjacent to exactly two black squares?

• Pfft. That's cheating. "can you paint 11 of the squares black so that each white square is orthogonally adjacent to exactly two black squares?" yes, trivially, if none of the squares are white! :-) – msh210 May 26 at 14:59