"An unusual idea which is inordinately difficult to classify... Larsen obtained a satifactory position from the opening in this game but he continued in a psychologically inappropriate fashion, progressing from the taking of reasonable risks to one that was wholly unjustified."
"White can also play a close relative of the Averbakh developing Ng1-f3 before Nb1-c3, although it can be argued that this is not so precise since at move #4 White does not yet know whether the KN or LSB should occupy f3. We give just one rather attractive example." ---K&B
1.e4 g6 2.d4 Bg7 3.c4 d6 4.Nc3

1) 4...c6
2) 4...Nc6
3) 4...Nd7
4) 4...e5
5) 4...f5
---------------
4...c6
"There has been little experience with this move and the occasions of it's occurence have been generally baleful for Black." --- K&B 1972
A)
5.f4
a) 5...Qb6 Uhlmann vs Olafsson
b) 5...a6 Zaitsev vs Szily
B)
5.Nf3 Bg4 6.Be3 Nd7 7.Be2
a) 7...e5 Botvinnik vs Czerniak
b) 7...Bxf3 Schmid vs Bronstein
Hort vs Larsen
1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.Nf3 c6 5.e4 a6
"...an intriguing 'anti-theoretical' experiment"
--- Larsen 1968
"An unusual idea which is inordinately difficult to classify... Larsen obtained a satifactory position from the opening in this game but he continued in a psychologically inappropriate fashion, progressing from the taking of reasonable risks to one that was wholly unjustified."
--- K&B 1972
6.Be2 b5 7.0-0
7.a3 Penrose vs Botvinnik
7...Bg4 8.Be3 bxc4 - Hort vs Larsen
"White can also play a close relative of the Averbakh developing Ng1-f3 before Nb1-c3, although it can be argued that this is not so precise since at move #4 White does not yet know whether the KN or LSB should occupy f3. We give just one rather attractive example." ---K&B
Birbrager vs Suetin
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