1. e4 Nc6 2. Nf3 d5 3. Bd3 Nf6 4. exd5 Qxd5 5. Nc3 Qh5 6. 0-0 Bg4 7. h3 Ne5 ╔═══════════════╗ ║♜ … … … ♚ ♝ … ♜║ ║♟ ♟ ♟ … ♟ ♟ ♟ ♟║ ║… … … … … ♞ … …║ ║… … … … ♞ … … ♛║ ║… … … … … … ♝ …║ ║… … ♘ ♗ … ♘ … ♙║ ║♙ ♙ ♙ ♙ … ♙ ♙ …║ ║♖ … ♗ ♕ … ♖ ♔ …║ ╚═══════════════╝ 8. hxg4 Nfxg4 9. Nxe5 Qh2# ╔═══════════════╗ ║♜ … … … ♚ ♝ … ♜║ ║♟ ♟ ♟ … ♟ ♟ ♟ ♟║ ║… … … … … … … …║ ║… … … … ♘ … … …║ ║… … … … … … ♞ …║ ║… … ♘ ♗ … … … …║ ║♙ ♙ ♙ ♙ ……
I'm no expert, but since all the other comments are just complaining, here are my (very amateur) thoughts: 1. e4 The most common opening in chess. Bill knows he's supposed to bring out some knights and bishops in these next few moves, which is good! 1. ... Nc6 2. Nf3 d5 Both black moves aim for an open center so he can make it a fast game with plenty options to attack. His move invites Bill to waste a turn changing t…
At the end, Bill's 9. Nxe5 resulted in an immediate checkmate. Instead, 9. Re1 (Rook one square to the left) stops the mate since it gives white's king an escape route. In an even match, the game would be winning for white at that point because Magnus sacrificed a bishop for his now-failed attack.
Magnus screwed up big-time or was goofing around. He would still be able to beat Gates from that losing position, but I'm very surprised he let that happen.