"I have, Moosior Poirot. I don't believe the poison was meant for Wilson—it was meant for the other man."
"Savaronoff?"
"Yes. Savaronoff fell foul of the Bolsheviks at the outbreak of the Revolution. He was even reported killed. In reality he escaped, and for three years endured incredible hardships in the wilds of Siberia. His sufferings were so great that he is now a changed man. His friends and acquaintances declare they would hardly have recognised him. His hair is white, and his whole aspect that of a man terribly aged. He is a semi-invalid, and seldom goes out, living alone with a niece, Sonia Daviloff, and a Russian man-servant in a flat down Westminster way. It is possible that he still considers himself a marked man. Certainly he was very unwilling to agree to this chess contest. He refused several times point blank, and it was only when the newspapers took it up and began making a fuss about the 'unsportsmanlike refusal' that he gave in. Gilmour Wilson had gone on challenging him with real Yankee pertinacity, and in the end he got his way. Now I ask you, Moosior Poirot, why wasn't he willing? Because he didn't want attention drawn to him. Didn't want somebody or other to get on his track. That's my solution—Gilmour Wilson got pipped by mistake."
"There is no one who has any private reason to gain by Savaronoff's death?"
"Well, his niece, I suppose. He's recently come into an immense fortune. Left him by Madame Gospoja whose husband was a sugar profiteer under the old regime. They had an affair together once, I believe, and she refused steadfastly to credit the reports of his death."
"Where did the match take place?"
"In Savaronoff's own flat. He's an invalid, as I told you."
"Many people there to watch it?"
"At least a dozen—probably more."
Poirot made an expressive grimace.