Bug: Mate in 1 puzzle is not - Chess Forums

Doing puzzles with kind set to "Mate in 1" I got this puzzle: and as can be seen in the self analysis, it is not a mate in 1

How is this not a check mate? genuinely confused - Chess Forums

Grandmaster Guide to Learn and Improve Chess Tactics

Mate in 1 Black to move - Chess Forums

Help with understanding a puzzle solution - Chess Forums

Mate in 1 move puzzles 1 to 10

Bug in Lesson - Chess Forums

Mate in 1 Chess Puzzle: You May Not Solve It - video Dailymotion

Chess: Ding levels world title match after error-strewn twelfth game

Hard checkmate in 2 puzzle. - Chess Forums