Hello everyone, somes interested lectors might know and remember that Sloughterchess claimed to be able to refute the 2 Knight defense and he challenged me into a 5 games match with 3 days/move.
Sloughterchess - ArKheiN_ : 0-5
Game 1 : 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5 c6 7.dxc6 bxc6 8.Qf3 Be7 9.Nc3 0-0 10.Be2 Nd5 11.Nh3 Rb8 12.0-0 Nb4 13.Bd1 c5 14.a3 Nbc6 15.b4 0-1 (Sloughterchess resigned)
Game 2 : 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5 c6 7.dxc6 bxc6 8.Qf3 Be7 9.Be2 0-0 10.Ne4 Nd5 11.Nec3 Nf4 12.d3 Ne6 13.Bd1 Nd4 14.Qe3 h6 15.h4 Bxh4 0-1 (Sloughterchess resigned)
Game 3 : 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5 c6 7.dxc6 bxc6 8.Qf3 Be7 9.Bd3 O-O 10.Nc3 h6 11.Nge4 Nd5 12.Ng3 Nb4 13.Nf5 Bg5 14.h4 Nxd3 15.cxd3 Be7 16.O-O Bb4 17.Ne4 g6 18.Nxh6 Kg7 19.Ng4 Bxg4 20.Qxg4 f5 21.Qg3 fxe4 22.dxe4 0-1 (Sloughterchess resigned)
Game 4 : 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5 c6 7.dxc6 bxc6 8.Qf3 Be7 9.Ba4 O-O 10.Ne4 Rb8 11.a3 Nxe4 12.Qxe4 Ba6 13.d3 Nb7 14.Nc3 Nc5 15.Qf5 e4 0-1 (Sloughterchess resigned)
Game 5 : 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5 c6 7.dxc6 bxc6 8.Qf3 Be7 9.Bd3 O-O 10.Nc3 h6 11.h4 Rb8 12.b3 Rb4 13.Ba3 Rd4 14.Bxe7 Qxe7 15.Nge4 Nxe4 16.Nxe4 f5 17.Nc3 e4 18.Qe2 Rfd8 19.f3 Qf6 0-1 (Sloughterchess lost on time in a very difficult if not lost position)
So what is the conclusion of the match? While Sloughterchess' hypothesis was that 4.Ng5 wins for White, the match showed that 4.Ng5 is lost for White!
I'm just joking. I won 5/5, not because White is worse, but because I am better than Sloughterchess and his old fritz 8. This is not a surprise: in a balanced position (here is pawn up vs activity), the winner is the best prepared/best player, like everywhere. I would play both side of the position. 4.Ng5 is good but probably not winning. 4..d5 followed by 5..Na5 resists to the time, to master play and to computers' brute force right now. Chess is too complicated to call a position winning losing in the opening without evidence. I hope Mr Sloughterchess learnt something from the match. Making a chess revolution is not that easy. Refuting the Two Knight defense would indeed be a chess revolution of the whole 1.e4 e5 opening.
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5 c6 7.dxc6 bxc6 is the first important position for White after 5..Na5. The only point where I agree with Sloughterchess is: the classical 8.Be2 here is not necessarily the best move, 8.Qf3 is probably at least as good, and I agree this move is a good winning try. I have not analyzed 8..Rb8 and 8..h6 (two serious defenses) very deeply so I can't claim theses moves is ok. I can just guess theses defenses are playable but my favourite move is 8..Be7 and that was my move in the 5 games. I won't give a complete analysis of the games because I have not the time for that. But for me, the best and only move for White here to fight for a small advantage is 9.Bd3! O-O 10.Nc3 h6 11.Nge4 Nd5 12.Ng3 Nb4 13.Nf5, here we see the point of 9.Bd3 and Qf3 at same time. White rushed to control light squares, and avoiding any ..f5 and ..e4 by Black, two typicals and nice ideas in theses positions. Light squares are just blockaded and White is close to get an edge but I think Black can equalize here with good play. Sloughterchess played in that way in game 3 but quickly after playing the good plan (showed by a member in the forum with 2 posted games but he has disappeared now), he went wrong with his next moves. He also used the interesting 11.h4!? but that is not strategically impressive. Tactically he manages to keep his knight on g5 but this is not the best place for it, as I have pointed out, it has to rush to the light squares. On g5 it is not giving any serious pressure, and the h4 pawn might become a weakness. Often I have been giving more than one pawn, by playing a strong ..e4! sacrifice at the right moment, liberating my power to the central white king. The position is not easy to play to any side. Black has to be active and not be afraid to give more material to achieve a strong activity while White has to know how to restrain Black's activity AND keeping his pawn up. That's might be impossible, and White might give back the pawn to get some activity back and the game become more normal after that.
Finally, while it is true that 8.Qf3 is a critical move, it is often helped by Bd3 to control light squares but the queen often get under attack and Black is gaining time while the Queen did not hurt much (after 8..Be7, Black is telling to her: I don't care of you and your pressure on c6!). So, 8.Bd3 might be another serious try to get a slight advantage as White, and it has been tried by GM Nakamura in the final of a US Championship and he won.
And don't forget that: 1..e5 is playable, 3..Nf6 is playable 4.Ng5 is playable, 5..Na5 is playable, 8.Qf3 is playable, 8..Be7 to name only one defense is playable, and the best player/best prepared will win any side of that.
-The Two Knight defense is complicated, pawn vs activity is complicated, chess is complicated, human can't get the ultimate truth even with the help of computers. So, just have fun!
Moody-ArKheiN