Hanna Ivan-Gal is a top-100 player in Hungary, Woman FIDE Master and an experienced coach. She is also the presenter of the Hedgehog video course on Chessable.
Laszlo Hazai from Hungary is an International Master, a lifetime FIDE Senior Trainer, a former coach of the Polgar sisters, and a distinguished opening theoretician who wrote dozens of Opening Surveys for New In Chess Yearbook.