2:00:51

Webinar "Determining Positional Factors in Chess"

1:47:59

Webinar "Defense in Worst Positions"

1:23:19

Webinar "Material Sacrifice for Defensive Purposes"

1:48:04

Webinar "Five Forces Determining Chess Strategy"

3:22:10

Xadrez - CHEGAMOS NO 1000 DE RATING (inicial: 944 e atual: 1001)

1:12:13

Webinar "Voluntary Forfeiture of Castling"

1:30:57

Webinar "Strategic Planning in the Endgame"

28:37

final de xadrez 300