Clearance - Advanced

Deflection - Advanced  (help)

Discovered Check - Beginner  (help)

Discovered Check - Intermediate  (help)

Discovered Check - Advanced  (help)

Double Attack - Advanced

Knight and Pawn Forks - Beginner  (help)

Knight and Pawn Forks - Intermediate  (help)

Knight and Pawn Forks - Advanced

Minor and Major Pieces  (help)

Overworked Piece

Pinning! - Beginner   (help)

Pinning! - Intermediate   (help)

Pinning! - Advanced   (help)

Queen Forks - Beginner  (help)

Queen Forks - Intermediate 

Queen Forks - Advanced  (help)

Removing the Guard

Skewer! - Beginner  (help)

Skewer! - Intermediate  (help)

Skewer! - Advanced  (help)

The Skewer - Beginner  (help)

Skewer, Skewer, Shish Kabob - Intermediate  (help)

Using the Force  (help)

The Vulnerable Back Rank  (help)

The X-Ray Attack (Skewer Power) - Advanced  (help)

Here are Tim and Emily (Know Chess! students) amusing themselves at their backpacking campsite: Round Top Lake, about 9,300' in the High Sierras.