- Chess World Cup
- FIDE Grand Prix
- Olympiad
- World Championship
- List of strong tournaments
- List of world championships
- Checkmate patterns
- Chess openings
- Chess strategy
- Chess tactics
- Chess theory
- Endgames
- Pawn structure
- Problems/Compositions
| a | b | c | d | e | f | g | h | ||
| 8 |
  |
8 | |||||||
| 7 | 7 | ||||||||
| 6 | 6 | ||||||||
| 5 | 5 | ||||||||
| 4 | 4 | ||||||||
| 3 | 3 | ||||||||
| 2 | 2 | ||||||||
| 1 | 1 | ||||||||
| a | b | c | d | e | f | g | h | ||
A threeleaper (or trébuchet) is a fairy chess piece that jumps three squares orthogonally (the directions a chess rook can move), leaping over any intermediate piece. Below, it is given the symbol H from Betza notation.
The threeleaper by itself is not much more powerful than a pawn, but as an additional power to other pieces it is worth about half a knight. Its value as a piece by itself is severely compromised by its being only being able to reach a ninth of the squares on any size of chessboard; combining it with other pieces usually masks this weakness to some extent.