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

Are there any chess puzzles that are 'white to move and not checkmate'? - Quora

Mate in 1 Chess Puzzles - HubPages

A puzzle-situation from my last game - Chess Forums

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Chess - Play and Learn android iOS apk download for free-TapTap

How quickly can you see a mate in one? - Chess Forums

Is this a bug or what is wrong? - Next Chess Move

Bug: Mate in 1 puzzle is not - Chess Forums

Mate in 3 Chess Puzzles App Price Intelligence by Qonversion