[Event "?"] [Site "?"] [Date "2021.09.09"] [Round "?"] [White "White to play and win"] [Black "?"] [Result "*"] [Annotator "peter"] [SetUp "1"] [FEN "8/PbP1pk2/2rp4/2pN4/4K1B1/8/8/8 w - - 0 1"] [PlyCount "9"] [SourceVersionDate "2020.04.01"] {[#]} {In the mainline White sacs all his other pieces to queen the a-pawn} 1. c8=Q Rxc8 2. Bxc8 Ba8 (2... Bc6 3. Kf5 Bxd5 (3... c4 4. Be6+ Kf8 5. Nc7 c3 6. Bb3 $18 {White will win the bishop for the a-pawn and then mop up the black pawns}) 4. Be6+ {transposes to the mainline}) 3. Kf5 $1 Bxd5 (3... c4 4. Be6+ Kf8 5. Nc7 {etc}) 4. Be6+ Bxe6+ 5. Ke4 {and the pawn queens} *