BOT.vinnik Chess: Combination Lessons achievements

Complete all "Back-Rank Mate" lessons

Complete all "Pin" lessons

Complete all "Skewer" lessons

Complete all "Pawn Forks" lessons

Complete all "Knight Forks" lessons

Complete all "Discovered Attack" lessons

Complete all "Rooks on Seventh Rank" lessons

Complete all BOT.vinnik Chess: Combination Lessons

Complete all "Deflection" lessons

Complete all "Attacking the Castled King (Advanced Pawns)" lessons

Complete all "Attacking the Castled King - Missing Rook" lessons

Complete all "Clearence Sacrifice" lessons