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# ╔═══════════════╗ ║♜ … … … ♚ ♝ … ♜║ ║♟ ♟ ♟ … ♟ ♟ ♟ ♟║ ║… … … … … … … …║ ║… … … … ♘ … … …║ ║… … … … … … ♞ …║ ║… … ♘ ♗ … … … …║ ║♙ ♙ ♙ ♙ ……
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 the center from pawn vs pawn to queen vs nothing. To his credit Bill resists capturing for a bit!
3. Bd3
Doesn't make much sense to block your queen pawn like this. Of course he's trying to support e4 or win d5, but he's tying himself in knots.
3. ... Nf6 4. exd5 Qxd5
Magnus is ahead in development.
5. Nc3 Qh5
I'm sure Magnus would have played more conservatively against a better player. But in this case, he might as well attack!
6. 0-0
Seems like Bill stepped right into the line of fire here, but his blocked queen pawn makes everything else hard to move.
6. ... Bg4
Pinning the knight. This immobilizes yet another piece and makes Bill's queen even more stuck.
7. h3
Moving the pawns in front of your castled king usually weakens your defenses. And hxg4 is suicidal.
7. ... Ne5
Attack! Magnus is happy to give up material to gain time and open vulnerabilities.
8. hxg4 Nfxg4 9. Nxe5
Getting greedy, but even if he did something else, was there was any way to stop that queen?
I've lost games more quickly than Bill, and not to grandmasters, so props to him for at least making reasonable moves.