checkmate patterns discovery fork Spokane tactics windmill zwischenzug Calculate Update This past weekend was the 26th annual Collyer Memorial chess tournament. I have played most years, and have had my best and worst tournament... By unik Edit
deflection discovery fork intermezzo pin Problem of the Week zwischenzug Learn from Others' Errors Update My students this week are seeing a series of positions from my games in the 25th Collyer Memorial Chess Tournament. From the same positions,... By unik Edit
discovery Double Attack Informant Solve This Discovery! Update White played the strongest move in this position from Marovic -- Pomar Salamanca, Espana 1969, Chess Informant 7/505. White to move ... By unik Edit