Punish the Blunder: a theory course

After the opponent moves, check what became undefended and which new threats are possible.

6 lessons, each followed by its own puzzle drill, then 10 themed puzzle packs.

• The Piece Left Behind — Look for a piece the last move left undefended.
• The Guard That Left — Use a target whose defender just moved away.
• Use the Opponent’s Mistake — Capture a piece that moved onto an attacked square.
• Use the Line Opened by the Pawn — Use lines opened by a pawn move near the king.
• The Greedy Capture — Calculate your threat before automatically recapturing.
• Check Threats Before Moving — Scan checks, captures and threats before replying.