[Event "Calvia 2004"]  [Site "?"]  [Date "2017.07.25"]  [Round "?"]  [White "Tactics #70"]  [Black "   Polgar - Chiburdanidze, Calvia, 2004   "]  [Result "1-0"]  [SetUp "1"]  [FEN "rn1q1rk1/pb3p1p/1p1p2p1/2p1pBP1/1PP2n2/P1Q2N2/1B1PPP1P/R3K1R1 w Q - 0 1"]  [PlyCount "12"]  [SourceDate "2017.07.25"]   1. Nxe5 {[pgndiagram] After this brilliant shot, White is winning in all  variations} Nxe2 {The counterblow on which Black was hoping}   (1... dxe5 {Loses  simply} 2. Qxe5 f6 3. Qxf4 fxg5 4. Be6+ {And Black has winning attack}) (1...  gxf5 {Is even more transparent} 2. Nc6)   (1... Qe7 {Is met with the amazing} 2.  Be4 $3 {[pgndiagram]} dxe5   (2... Bxe4 3. Ng4) 3. Bxb7 Qxb7 4. Qxe5 f6 5. Qxf4)  (1... Qe8 {Is met with the same} 2. Be4 $3 Bxe4 3. Ng4 $1 Nd3+ 4. Qxd3 Bxd3 5.  Nh6#) 2. Nxf7 $3 {[pgndiagram]}   (2. Kxe2 dxe5 3. Qxe5 {Is a huge error due to}  Re8) 2... Nxc3 3. Nh6+ $3 {[pgndiagram] The whole point of the combination}   (3.  Nxd8 Rxd8 4. Be6+ Kf8 {Is winnng for Black}) 3... Kg7 4. Bxc3+ Rf6 5. Bxf6+  Qxf6 6. gxf6+ Kxh6 {[pgndiagram] And White wins} 1-0