Borislav Ivkov vs Atanas Stefanov Kolarov - Wageningen Zonal 1957.11.03
Borislav Ivkov vs Atanas Stefanov Kolarov
Wageningen Zonal Wageningen NED round 5 1957.11.03
Semi-Slav Defense: Bogoljubov Variation 0-1
Borislav Ivkov vs Atanas Stefanov Kolarov
Wageningen Zonal Wageningen NED round 5 1957.11.03
Semi-Slav Defense: Bogoljubov Variation 0-1