A silicon-based virus can not replicate in carbon-based life. It will not be able to use its host molecules; which are completely different from a biochemistry point of view. If such a virus exist, no humans or earth species can be infected by such alien virus.
During the final chess game between Mayweather and Reid, the former declares that Reid can force a win in five moves. This is incorrect. It is Mayweather (playing white) who can win in five moves. The game they played has the same opening moves as a famous historical game between Richard Reti (white) and Savielly Tartakower (black) in 1910. The initial moves were: 1. e4 f7, 2. d4 d5, 3. Nc3 de4, 4. Ne4 Nf6, 5. Qd3 e3, 6. de5 Qa5+. This is the point where Mayweather resigned, but the historical game continues: 7. Be2 Qe5, 8. O-O-O Ne4, 9 Qd8+ Kd8, 10. Bg5+ Kc7, 11. Bd8 checkmate. White has sacrificed a knight and the queen successively, but wins in five moves.