Top network posts

• 29 Why is the queen considered lost?
• 11 A question about modulus for polynomials
• 8 If $\large\sum_{n=1}^{\infty}\frac{(-1)^{n+1}}n=a$ then what is the value of $\large\sum_{n=1}^{\infty}\frac1n\cos\frac{n\pi}2$?
• 7 Source on common ways to make draws
• 6 Is there really a checkmate after 1... Bxf5?
• 6 King's Indian defense follows to strange pawn wall
• 5 Some strange moves in Polgar vs Najer (2009)
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