Sergash: Oystein Hole is a Norwegian International Master. At the time of the actual game, he really had "Carlsen's number". He beat him with the black pieces at the Gausdal IM Classic 2001, then there was a draw at the Gausdal Troll Master 2002, again playing Black. A second victory again as Black at the Asko Club Championship. And a third victory in the actual game... Carlsen was 11 years old when he played this game, while Hole was 30 years old.<1...c7-c5> Interesting to note that Carlsen seemed to have always played 1...Ng8-f6 here, always going for the symmetry. Until the actual game... Maybe this shows that Carlsen intended not to play for a draw?
<2.g2-g3 Nb8-c6 3.Bf1-g2 g7-g6 > 2.e2-e4 would transpose in a Sicilian...
<4.0-0 Bf8-g7 5.d2-d3> Maybe it is better to have some anchor in the centre with 4.c2-c4 Bf8-g7 as in Reti vs Maroczy, 1924, draw.
<5...e7-e5!?> This move could be a little dubious. Better seem either
A) 5...d7-d5 Eusebo Gomez vs. Alexander Alekhin, Simultaneous Exhibition in Madrid (Spain) 1941, 0-1.
B) 5...Ng8-f6 Jorge Pelikan vs. Benito H. Villegas, Mar del Plata (Argentina) 1942, round 12, 1-0.
C) 5...d7-d6 (historically the most played move) I Asmundsson vs Stahlberg, 1957, draw.
<6.e2-e4?! Ng8-e7> Fear of ...e5-e4... ? More precise appear 6.c2-c4! Ng8-e7 Najdorf vs Pachman, 1962, draw; or 6.a2-a3 d7-d5! Ante Vidovic vs. Edmond Paljusaj (2224), Croatia U18 Championship in Pula 1999, group B, 1-0.
<7.c2-c3 0-0 8.a2-a3! a7-a5 => historically the most played move, but maybe better are 7.c2-c4 Bernardo Wexler vs. Raul Sanguinetti, Mar del Plata (Argentina) 1957, round 15, 0-1.
Or immediately 7.a2-a3 Vladimir Peresipkin vs. Boris Gulko, Semi-final USSR Championship in Kiev 1973, 1-0.
<9.a3-a4 d7-d5 10.Nb1-a3 d5-d4 11.c3xd4 c5xd4! 12.Nf3-d2N Bc8-e6 13.Nd2-c4! => Because of the closed nature of the position, playing this a-pawn for a second consecutive move has no bad consequence. 12.Nf3-d2 was a novelty apparently.