The
blind swine mate pattern's name is attributed to Polish master
Dawid Janowski who referred to on a player's 7th rank as "swine". In the first diagram with White to play, White can force checkmate as follows: :
1. Rxg7+ Kh8 :
2. Rxh7+ Kg8 :
3. Rbg7 In the first diagrammed position, the rooks on White's 7th rank can start on any two files from
a to
e, and although black pawns are commonly present as shown, they are not necessary to deliver the mate. The f8-rook is necessary to stop the king from escaping if the attacking side does not already have a piece controlling that
flight square. The second diagram shows the final position after checkmate. In the book
My System, Nimzowitsch refers to this type of mate as: "The seventh rank, absolute." ==Boden's mate==