Checkmate crediting

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Avatar of ChampnTV
I've been trying to unlock the killer pieces achievements. I've got rook and queen already and I just finished a game where my bishop checkmated the enemy king. However it was delivered by moving my rook out the way while still blocking the escape route. my pieces: Qd3, Rb3, Be5 enemy: Ka2 here the sequence: Rb2+, Ka1, Rd2 (opening the bishop line delivering mate). Does discovery checkmate credits goes to the one moving out the way or the one sniping? I think I know the answer since I didn't unlock killer bishop lol.
Avatar of ChampnTV

imagine playing blindfolded and totally forgot about a possible discovery check then your front piece is attacked so you had to move it to a safer square. then they announced gg 😅😂

Avatar of snaider_oviedo

Hi

Avatar of snaider_oviedo

I'm are so bad in chess someone can help me

Avatar of sanglier-de-cornouailles

After a checkmate, you win the achievement corresponding to the last piece you moved. So yes, discovery can work for killer king achievement.