Borislav Ivkov vs Ilkka Antero Kanko - Halle Zonal 1963.07.??

Borislav Ivkov vs Ilkka Antero Kanko<br>Halle Zonal Halle GDR round 17 1963.07.??<br>Bogo-Indian Defense 1-0<br>https://www.chessgames.com/perl/chessgame?gid=1157374 --- Send in a voice message: https://anchor.fm/blindfoldchess/message