Full list of all 20 BOT.vinnik Chess: Combination Lessons achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Complete all "Rooks on Seventh Rank" lessons
Complete all BOT.vinnik Chess: Combination Lessons
Complete all "Smothered Mate" lessons
Complete all "Interception" lessons
Complete all "Clearence Sacrifice" lessons
Complete all "Back-Rank Mate" lessons
Complete all "Deflection" lessons
Complete all "Attacks Against the Centralized King" lessons
Complete all "Attacking the Castled King (Advanced Pawns)" lessons
Complete all "Attacking the Castled King - Missing Rook" lessons
Complete all "Attacking the Castled King - Missing Knight" lessons
Complete all "Attacking the Castled King - Missing f7-Pawn" lessons
Complete all "Attacking the Castled King - Missing g7-Pawn" lessons
Complete all "Attacking the Castled King - Missing h7-Pawn" lessons
Complete all "Queen's Sacrifice" lessons
Complete all "Pawn Forks" lessons
Complete all "Knight Forks" lessons
Complete all "Discovered Attack" lessons
Complete all "Skewer" lessons
Complete all "Pin" lessons