Chess is a scientific game and its literature ought to be placed on the basis of the strictest truthfulness, which is the foundation of all scientific research. — W. Steinitz

A00

**A53**
1.d4 Nf6 2.c4 d6	Old Indian:
3.Nf3 Bg4	Old Indian: Tartakower
3.Nc3 Bf5	Old Indian: Janowski
3.Nc3 e5	Old Indian: Ukrainian
3.Nc3 e5 4.e3 Nbd7 5.Bd3	Old Indian: Ukrainian (Dus Chotmirsky)

**A54**
1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Nf3	Old Indian: Ukrainian (Two Knights)

**A55**
1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Nf3 Nbd7 5.e4	Old Indian: Ukrainian (Two Knights)