Spot the Mate
The books
Every daily puzzle comes from one of these books.
Give Your King Some Air100 Back-Rank Mate Chess Puzzles
One Stop, One Checkmate100 Mate-in-One Chess Puzzles
Coach Owl's Family Checkmate Quest100 Mate-in-One Chess Puzzles
Chess Afternoons with the Grandkids100 Mate-in-One Chess Puzzles