The 2nd one Czech who has been able to send 8b+ is nobody else then Adam Ondra.
He celebrated his 13th birthday at the trip to Spain by rather twice onsights to have it sure: Kalea Borroka, 8b+ in Siurana, and another one (I don´t know the name) in Montsant.
He add in OS another three 8b and in RP his second 8c+ La Leccion in Terradets.
Whot to add, according to the age/performance the kid has not the similarity on the world, perhabs may be David Lama from Austria follows him a little bit. Translated from Lezec.cz