Forcing Checkmate 1 consists of six positions, all with White to move. The first three are checkmate in one, but I let the students work for a few minutes before I revealed this information. Then two are checkmate in two moves, and the last is checkmate in three. Numbers 2 and 6 are from the same game.
Forcing Checkmate 2 consists of three positions. The first is not in my book, Forcing Checkmate. Although arrow drawn on the diagrams are acceptable for the first worksheet, this worksheet explicitly called for students to write the entire solution in chess notation.
2-1. Checkmate in two
2-2. Checkmate in four
2-3. Checkmate in five
The last one is from William Lewis, Elements of the Game of Chess (London, 1822).