[Event "Leningrad"] [Site "?"] [Round "0"] [White "Ragozin"] [Black "Lilienthal"] [Result "1-0"] [ECO "C70"] [Opening "Spanish: 4.Ba4"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 Bg4 10. Be3 exd4 11. cxd4 Na5 12. Bc2 Nc4 13. Bc1 c5 14. b3 Na5 15. Nbd2 Nc6 16. Bb2 Nxd4 17. Bxd4 cxd4 18. h3 Bh5 19. g4 Nxg4 $1 { This sacrifice is really necessary as retreat} (19... Bg6 20. Nxd4) 20. hxg4 Bxg4 21. Qe2 (21. Kg2 Bf6 22. Bd3 Rc8) 21... Rc8 22. Bd3 Bg5 $1 { The effect of this pin is very strong} 23. e5 {Looking for counterplay} (23. -- Bxd2 24. Qxd2 Bxf3 $19) (23. Qf1 Bxd2 24. Nxd2 Qg5 $17) (23. Nf1 Rc3 24. N1h2 Bh5 {White is bound hand and foot}) 23... Bxd2 24. Qe4 { White hopes this sharp interpolation will save him} 24... g6 25. Qxg4 (25. Nxd2 Bf5 26. Qe2 Qg5+ 27. Kh2 Qh4+ 28. Kg1 Bxd3 29. Qxd3 Rc3 30. Qe2 dxe5 { Black has four pawns for his piece and his attack still persists}) 25... Bxe1 26. Rxe1 dxe5 27. Rxe5 Re8 28. Rxe8+ Qxe8 29. Kg2 (29. Qxd4 Rd8 30. Qe4 (30. Qc3 Qd7 31. Be2 Qg4+) 30... Qxe4 31. Bxe4 Rd1+ 32. Kg2 Ra1) 29... Qd8 30. Qf4 ( 30. Nxd4 Rc5 $1) (30. Qxd4 Qxd4 31. Nxd4 Rd8 $19) 30... Rc5 {Thus Black ely preserves his d-pawn, leaving White, with two minor pieces against Rook and three pawns, at a decisive disadvantage.} 31. Qe4 Kg7 32. a4 bxa4 33. bxa4 a5 34. Bb5 Rd5 35. Bc4 Rc5 36. Bb5 Rd5 37. Bc4 Rd6 38. Qe5+ Qf6 39. Qxa5 d3 40. Qd2 Qf5 41. Qc3+ Rf6 42. Qxd3 Qg4+ 43. Kf1 Qxf3 44. Qxf3 Rxf3 45. a5 Rc3 46. Be2 Ra3 47. a6 h5 48. Kg2 h4 49. Bc4 g5 1-0