pilgrimdan wrote: ↑Mon Aug 12, 2019 4:44 am
1.e4 c6 2.Nf3 d5 3.exd5 cxd5 4.Bb5+ Bd7 5.Bxd7+ Nxd7 6.O-O e6 7.b3 Ngf6 8.Bb2 Bd6 9.Qe2 Qc7 10.c4 dxc4 11.Qxc4 Qxc4 12.bxc4 Rc8
13.Na3 a6 14.Rab1 O-O 15.d3 b6 16.Rfc1 Nh5 17.g3 Nc5 18.Rd1 Na4 19.Nc2 Nxb2 20.Rxb2 Bc7 21.Nb4 Ra8 22.Nc6 Nf6 23.a4 Rfe8 24.Nfe5
Rac8 25.Rdb1 h5 26.f4 Ng4 27.Nxg4 hxg4 28.Kf2 f6 29.Rxb6?!
[d]2r1r1k1/2b3p1/pRN1pp2/8/P1P2Pp1/3P2P1/5K1P/1R6 b - - 0 29
Bxb6+ 30.Rxb6 a5 31.Ke3 e5 32.fxe5 Re6 33.Na7 Rxe5+ 34.Kf4 Ra8 35.Nb5
Rh5 36.d4 Rxh2 37.c5 Rf2+ 38.Ke4 f5+ 39.Kd5 f4 40.gxf4 Rxf4 41.Re6 Rf5+ 42.Kc4 Rg5 43.Re2 g3 44.Rg2 Kf7 45.c6 Ke7 46.d5 Rf8
47.Re2+ Kd8 48.c7+ Kd7 49.d6 Kc6 50.Re7 Rg4+ 51.Kd3 g2 52.d7 Rg3+ 53.Ke4 Rg4+ 54.Kd3 Rg3+ 55.Ke4 Rg4+ 56.Kd3 1/2-1/2
Not sure about the question after 29th white move, but I guess White has to struggle hard. Black at least has better chances to win but White has to draw.
Anyhow in the given continuation, there are some blunders from White as well as from Black.
Biggest one (game changing) is 34...Ra8 (?).
After Backward and 34...Rd8 instead:
[d]3r2k1/N5p1/1R3p2/p3r3/P1P2Kp1/3P2P1/7P/8 w - - 0 1
Analysis by Cfish 050819 x64 POP N:
35.Nc6 Re6 36.Kf5 Rdd6 37.Ne7+ Kf7 38.Rxd6 Rxd6 39.Nd5 Re6 40.Kxg4 Re2 41.Kf3 Rxh2 42.Ke4 Re2+ 43.Kf4 Ra2 44.Nb6 g5+ 45.Ke4 Re2+ 46.Kf3 Rc2 47.Na8 Ke6 48.Nc7+ Kd6 49.Nd5 Ke5 50.Ke3 Rg2 51.d4+ Ke6 52.Nc7+ Kd7 53.Kf3 Ra2 54.Nd5 Ke6 55.Nb6 Ra3+ 56.Kg4 Kd6 57.Kf5 Rxg3 58.c5+ Kc6 59.Kxf6 g4 60.Kf5 Rc3 61.Kxg4 Rd3 62.Kg5 Rxd4
-+ (-5.32) Depth: 45/84 00:07:54 12863MN, tb=47781368
After 31.d4 instead of Ke3(?!) it's =, 34.Kf4(?) -+, after 34.Kd2 instead again -/+.
Output after 30...e5 instead of ...a5(?):
[d]2r1r1k1/6p1/pRN2p2/4p3/P1P2Pp1/3P2P1/5K1P/8 w - - 0 1
Analysis by Cfish 050819 x64 POP N:
31.a5 exf4 32.gxf4 Kh7 33.c5 f5 34.d4 Re4 35.d5 Rxf4+ 36.Kg2 Rf3 37.Rb8 Rc7 38.Nd4 Rxc5 39.Nxf3 gxf3+ 40.Kxf3 Rxd5 41.Rb6 Rxa5 42.Kf4 Ra2 43.Kxf5 a5 44.h3 Rf2+ 45.Kg4 Rf6 46.Rb5 Ra6 47.Rb3 a4 48.Ra3 Kg6 49.Kf4 Ra5 50.Kg4 Kf6 51.Kf3 Kf5 52.Kf2 Ke5 53.Ke2 Kf4 54.Kf1 Ke4 55.Ke1 Ra7 56.Ke2 Kf5 57.Ke3 Ke6 58.Ke2 Ra6 59.Ke1 Ra5 60.Ke2 g5 61.Kd2 Kd6 62.Kd3 Kd5 63.Kd2 Ke6 64.Ke3 Kf5 65.Kf2 Ra6 66.Ke2 Ke4 67.Ke1 Ke5 68.Ke2
-+ (-1.71) Depth: 50/74 00:06:57 9814MN, tb=33962291
Here's the .pgn with some alternative moves inserted from Cfish, evals shown with quoting.
[pgn]
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Neue Partie"]
[Black "?"]
[Result "*"]
[PlyCount "111"]
1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. Bb5+ Bd7 5. Bxd7+ Nxd7 6. O-O e6 7. b3 Ngf6
8. Bb2 Bd6 9. Qe2 Qc7 10. c4 dxc4 11. Qxc4 Qxc4 12. bxc4 Rc8 13. Na3 a6 14.
Rab1 O-O 15. d3 b6 16. Rfc1 Nh5 17. g3 Nc5 18. Rd1 Na4 19. Nc2 Nxb2 20. Rxb2
Bc7 21. Nb4 Ra8 22. Nc6 Nf6 23. a4 Rfe8 24. Nfe5 Rac8 25. Rdb1 h5 26. f4 Ng4
27. Nxg4 hxg4 28. Kf2 f6 29. Rxb6 Bxb6+ 30. Rxb6 a5 $2 (30... e5 {[%eval -171,
43]}) 31. Ke3 $5 (31. d4 {[%eval 0,40]}) 31... e5 32. fxe5 $6 (32. f5 {[%eval
-22,41]}) 32... Re6 33. Na7 Rxe5+ 34. Kf4 $2 (34. Kd2 {[%eval -159,38]}) 34...
Ra8 $2 (34... Rd8 {[%eval -408,41]}) 35. Nb5 Rh5 36. d4 (36. Kxg4 {[%eval 0,38]
}) 36... Rxh2 37. c5 Rf2+ 38. Ke4 $15 (38. Ke3 {[%eval 0,37]}) 38... f5+ 39.
Kd5 f4 40. gxf4 Rxf4 41. Re6 Rf5+ 42. Kc4 Rg5 $5 $11 (42... Raf8 {[%eval -53,
44]}) 43. Re2 g3 44. Rg2 Kf7 45. c6 Ke7 46. d5 Rf8 47. Re2+ Kd8 48. c7+ Kd7 49.
d6 Kc6 50. Re7 Rg4+ 51. Kd3 g2 52. d7 Rg3+ 53. Ke4 Rg4+ 54. Kd3 Rg3+ 55. Ke4
Rg4+ 56. Kd3 *
[/pgn]