Ratkaise 23038:
Ratkaise 23038:
Peter Biyiasas (2485) - Israel Zilber (2410)
Hastings 7980 (13), 1979 Peter Biyiasas (2485) - Israel Zilber (2410)
Hastings 7980 (13), 1979
Hastings 7980 (13), 1979 Peter Biyiasas (2485) - Israel Zilber (2410)
Hastings 7980 (13), 1979