Advanced calculation techniques with GM Avrukh.
An hour long session on advanced calculation techniques.
The session includes multiple examples, PGN files available for paid subscribers.
Recording of 52 week course taken by GM Mihail Marin
40 hours of 1-1 sessions with GM Kristzian Szabo
1-1 personalised sessions for advanced level players (FIDE Rating: 1800-2100).