Endgame Corner #161 by Karsten Müller Tarrasch's Tempo Ronald Wieck wrote in to say, "I believe you will be interested in a discovery by IM Bernard Zuckerman." Of course I was very interested, as an old and famous rook ending was concerned. He had talked to Bernard Zuckerman on the phone: "Bernard and I were talking about rook endings and right before we hung up, he asked me if I was familiar with Rubinstein's draw with Tarrasch at San Sebastian, 1911. Proudly, I announced that I was. He pressed on with, "but did you ever wonder what happens if Tarrasch gains a tempo?" And indeed Zuckerman, who did not use a computer, seems to be right. Tarrasch could have won: 161.01 … [Read more...]