A unique back rank mating position

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Silverknight73

I was playing a game on Facebook chess and was able to checkmate my opponent in a way that I had never seen in my 26 years of playing chess (whether my games or others), so I wanted to share so that others can be on the lookout for similar setups

. My apologies for the blurriness of the pic.. My opponent went Kg1 to go after the Knight, who had taken a Rook, however, Rd1 is mate and the Knight covers the one escape square, to make it a back rank mate happy.pngphpdTwAQe.jpeg