[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "White to play and win"] [Black "?"] [Result "*"] [Annotator "peter"] [SetUp "1"] [FEN "n1QBq1k1/5p1p/5KP1/p7/8/8/8/8 w - - 0 1"] [PlyCount "17"] [EventDate "2008.08.11"] [SourceVersionDate "2020.04.01"] {[#]} 1. Bc7 $3 Qxc8 (1... Qf8 2. gxf7+) (1... Kf8 2. Bd6+) (1... Nxc7 2. gxf7+ ) 2. gxf7+ Kh8 (2... Kf8 3. Bd6#) 3. Be5 {threatening to move the king and deliver discovered mate} Qc5 (3... h6 4. Kg6#) 4. Bb2 (4. Ke6+ $2 Qxe5+ 5. Kxe5 Kg7) (4. Ba1 {will not do as after} Nc7 5. Bb2 a4 6. Ba1 a3 {White cannot play Bb2}) 4... Nc7 {defending by hemming the White king in} (4... Qb4 $2 5. Kf5+ Qxb2 {the capture of the bishop is no longer with check} 6. f8=Q#) 5. Ba1 { now any move with the queen, knight or h-pawn loses} a4 6. Bb2 a3 7. Ba1 a2 8. Bb2 a1=Q 9. Bxa1 {zugzwang} *