Iturrizaga Bonelli, Eduardo vs Santos Ruiz, Miguel

A28 English Opening: Four Knights System, Nimzowitsch Variation

Iturrizaga Bonelli, Eduardo 2630 Berdinketa
Santos Ruiz, Miguel 2529 Berdinketa
1. c4 1... Nf6 2. Nc3 2... e5 3. Nf3 3... Nc6 4. e4 4... Bb4 5. d3 5... d6