Level 1:

Mate in 4 (9 Puzzles)

Mate In Four Moves-(level 1)Download

Mate in 4 (9 Puzzles) With Answers

Mate In Four Moves-(level 1)-with answersDownload

Level 2:

Mate in 4 (9 Puzzles)

Mate In Four Moves-(level 2)Download

Mate in 4 (9 Puzzles) With Answers

Mate In Four Moves-(level 2)-with answersDownload

Level 3:

Mate in 4 (9 Puzzles)

Mate In Four Moves-(level 3)Download

Mate in 4 (9 Puzzles) With Answers

Mate In Four Moves-(level 3)-with answersDownload