Chess Puzzles by GMs Blog

 Here are 10 chess puzzles that illustrate the 'undermining' tactic.  The color of the corner disk indicates who moves first. 

  Here are 10 'mate in 3' puzzles that contain a bishop sacrifice on the first or second move. The color of the corner disk indicates who moves first.

  Here are 10 'mate in 3' puzzles that contain a queen sacrifice on the first or second move. The color of the corner disk indicates who moves first.

Double sacrifice:   Here are 4 'mate in 3' puzzles that contain a sacrifice on the first and second move.  The color of the corner disk indicates who moves first.   

Here are 10 'mate in 2' puzzles that feature a rook sacrifice. The color of the corner disk indicates who moves first.