[Event "Soviet Union"] [Site "?"] [Round "0"] [White "Abramovic"] [Black "Botvinnik"] [Result "0-1"] [ECO "A80"] [Opening "Dutch: 2.Nf3 Nf6"] 1. d4 f5 2. Nf3 Nf6 3. c4 e6 4. Nc3 b6 {Black aims his queen bishop at the kingside, also further restraining e4 by White.} 5. Bg5 Be7 6. e3 Bb7 7. Bd3 O-O 8. O-O Ne4 {So Black occupies this key square, hoping the knight will support a kingside attack, while simultaneously encouraging White to trade off his most active piece.} 9. Bxe7 Qxe7 10. Rc1 {White doesn't want to trade on e4, which would give Black both the open f-file and a cramping pawn on e4, and he also doesn't want Black to leave him with doubled c-pawns, but this move wastes time.} 10... Na6 {Black connects his rooks while supporting both c7 and c5 in the event White tries to break on the c-file.} 11. a3 {Losing more time.} 11... Rf6 {Black brings the heavy artillery to bear against White's kingside.} 12. Qa4 {After this White is lost; his queen is cut off from the kingside, and Black will trade off his only good defensive piece there, the knight on f3.} 12... Nxc3 13. Rxc3 Bxf3 14. Qxa6 {White thinks he is keeping his kingside intact by not taking on f3, but the bishop is a one piece mating net while the knight had nothing to do with the attack. White would still be lost after: 14. gxf3 Rg6+ 15.Kh1 Qg5 And White has no defence to the mate on g2.} 14... Rg6 15. g3 Qg5 {Good enough, but Black could win faster by 15...Qh4.} 16. Re1 Qh5 17. e4 Qxh2+ 0-1