SGchess01 vs MagnusCarlsen: game review

10…gxh4 is a blunder: Black's winning chances go from 63% to 42%.

• White answers 11.Nxh4, which takes the pawn on h4.
• After Nxh4, White wins 1 point of material within 2 moves.
• Better was 10…g4 (−1.44), which attacks the knight on f3.

Better: 10…g4 threatens …gxf3, winning a knight for a pawn, and stops hxg5. After 11.Ng5 Ne7 12.Qb3 Bh6 13.Ba3 Bxg5 14.hxg5 Qxg5 15.d4, Black comes out a pawn up (−1.44).

31.Ra8+ is a blunder: White's winning chances go from 49% to 18%.

• Black answers 31…Kh7: moving away uncovers the rook on h8, which now hits the rook on a8.
• Better was 31.Ra5 (−0.14), which attacks the c5 pawn, which is undefended.

Better: 31.Ra5 wins a pawn, picking it up with 32.Bxf6, and threatens Rxc5, winning a pawn. After 31…Nd7 32.Bxf6 Qxf6 33.Qxf6 Nxf6 34.Rxc5 Nd7, the bishops are traded, the queens come off and White comes out a pawn up (−0.14).

• Both sides followed opening theory up to 6.b4: 11 moves in all, 6 by White and 5 by Black.
• Theory runs out after 6.b4: too few games between strong players reached this position to go further.