[Event "Test Tibono settings"]
[Site "Eindhoven"]
[Date "2020.03.22"]
[Round "7"]
[White "Krypton Challenge, 9/10/12/8/8/11/9."]
[Black "Mephisto Rebell 5.0"]
[Result "1/2-1/2"]
[ECO "B18"]
[Annotator "Wiselius,Paul"]
[PlyCount "192"]
[EventDate "2020.??.??"]

{In this game the Challenge played some seemingly passive moves, e.g.
9.Bb3 and 21.Rb1, 23.Ba2} 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6
6. Bc4 e6 7. N1e2 Nf6 8. Nf4 Bd6 9. Bb3 Nbd7 10. Nxg6 {**} hxg6 {**} 11. O-O {
? With black's open h-line, this is asking for trouble...} Ng8 12. Qd3 Qh4 13.
h3 Ngf6 14. Bd2 {now and later on Ng4!? looks promising, but right now white
has then a counterattack with Bxe6!} Rd8 {
and that is why 0-0-0 seems a better idea.} 15. Ba5 b6 16. Be1 c5 17. Bc3 cxd4
18. Bxd4 Nc5 19. Bxc5 ({better} 19. Qb5+ Ke7 (19... Nfd7 20. Bxg7 Rh7) 20. Rad1
Nh5) 19... Bxc5 20. Qc3 a5 (20... g5 {! is stronger}) 21. Rab1 Rd7 22. a3 a4
23. Ba2 {better Bc4} Qf4 {?} (23... g5 {!} 24. Bc4 (24. Rbd1 Bxf2+) 24... Bd4
25. Qf3 g4 26. Qa8+ Ke7 27. Rbe1 g6 (27... gxh3 {?} 28. Nf5#) 28. Qxa4 Qxg3 29.
Bxe6 fxe6 30. Qxd4 Qxg2+ 31. Kxg2 gxh3+ 32. Kh1 Rxd4 {and black wins}) 24. Ne2
Qd2 25. Bc4 Qg5 26. Qf3 Ke7 {the chances seem to be equal now. But with a
number of suboptimal moves white gets in trouble again.} 27. Rbd1 Rhd8 28.
Rxd7+ Rxd7 29. Qc6 Qe5 30. Nc3 Bxa3 31. Nxa4 {
? a mistake, but it takes 6 ply to see it...} ({correct is} 31. bxa3 Qxc3 32.
Qxa4 Rd2 33. Bd3) 31... Bd6 32. g3 Rc7 33. Qb5 Rxc4 34. Qxc4 b5 35. Qc6 bxa4 {
black has a material advantage, but it appears not easy to win this game...}
36. Rb1 Qc5 {trading queens may not be the best option for black} 37. Qxc5 Bxc5
38. Kg2 Ne4 39. f3 Nd2 40. Ra1 Nc4 41. Rxa4 Nxb2 42. Ra5 Bd4 43. Ra2 e5 44. Kf1
Nd1 45. Ke1 Ne3 46. Ke2 Nf5 47. g4 Ne3 48. Kd2 g5 49. c3 Bc5 50. Ra8 Kd7 51.
Rb8 Kd6 52. Rb7 Ke6 53. Rb5 Nc4+ 54. Kd3 Kd5 55. Rb7 Nd6 56. Re7 g6 57. c4+
Nxc4 58. Rxf7 {this looks very much like a draw. But black keeps trying...} Ne3
59. Rd7+ Ke6 60. Rg7 Kf6 61. Rc7 Bd4 62. Rc6+ Kf7 63. Rc7+ Ke8 64. Ke4 Nd1 65.
Kd5 Kf8 66. Rc6 Nf2 67. Rxg6 Nxh3 68. Rh6 Nf4+ 69. Ke4 Kg7 {maybe if black
could get his bishop on f4, and the king with help of his knight could walk
around to get in the neighbourhood of f3? Food for the strong engines...} 70.
Ra6 Ng2 71. Kf5 Nh4+ 72. Ke4 Kf7 73. Ra8 Ke7 74. Rg8 Kf6 75. Rf8+ Kg7 76. Rb8
Kg6 77. Rg8+ Kh6 78. Rh8+ Kg7 79. Rb8 Kf7 80. Ra8 Kg6 81. Rg8+ Kh7 {?! to avoid
position repetition, black gives a pawn, still having a minimal advantage...}
82. Rxg5 Ng2 83. Rh5+ Kg6 84. Rh8 Nf4 85. Rh1 Ne2 86. Kd3 Ng3 87. Rh3 Bf2 88.
Rh8 Kg7 89. Rh2 Be3 {!?} (89... Ba7 {is not better}) 90. Kxe3 Nf1+ 91. Kf2 Nxh2
92. Kg2 Nxg4 93. fxg4 Kf6 94. Kf3 Kg5 95. Ke4 Kxg4 96. Kxe5 Kf3 {and Rebell
ims a draw by insufficient material to mate. A lucky draw for the Challenge...
!} 1/2-1/2

[Event "Test Tibono settings"]
[Site "Eindhoven"]
[Date "2020.03.22"]
[Round "8"]
[White "Mephisto Rebell 5.0"]
[Black "Krypton Challenge, 9/10/12/8/8/11/9."]
[Result "0-1"]
[ECO "B47"]
[Annotator "Wiselius,Paul"]
[PlyCount "174"]
[EventDate "2020.??.??"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. Be2 Qc7 7. f4 b5 8. Nxc6
dxc6 {**} 9. Be3 {**} Bb7 10. O-O Rd8 11. Qe1 Nf6 12. a3 Be7 13. Qg3 O-O 14.
Rad1 c5 15. e5 Nd7 16. Bd3 Nb6 17. Rfe1 ({better} 17. f5 {!} Kh8 (17... Nd7 18.
fxe6 fxe6 19. Bxh7+ Kxh7 20. Qh3+ Kg8 21. Qxe6+ Kh7 22. Qxe7 Qxe5 23. Qxe5 Nxe5
24. Rxf8 Rxf8 25. Bxc5) 18. fxe6 fxe6 19. Rxf8+ Bxf8 20. Rf1 Nc4 21. Qh3 h6 22.
Bxc4 bxc4 23. Qxe6) 17... c4 18. Be4 Bxe4 19. Nxe4 Nd5 20. Bd4 Rd7 21. Bf2 Rfd8
22. Qf3 h6 23. Bg3 Qb6+ 24. Kh1 a5 {white loses the initiative, apparently
does not know what to do in this position.} 25. Bf2 Qc7 26. c3 Qc6 27. Bd4 b4
28. cxb4 axb4 29. Rc1 bxa3 30. bxa3 Qa4 31. Nc5 ({better} 31. Bc5) 31... Bxc5
32. Bxc5 c3 33. g3 Rc8 34. Bd6 c2 35. Re4 Qb5 36. a4 Qc6 37. Rd4 Ra7 38. Qe4 f5
{!} 39. Qf3 (39. exf6 Qxd6 40. Rxc2 Rxc2 41. Qxc2 Rc7 42. Qg6 Qc6 {
with winning attack for black}) 39... Rxa4 40. Rxa4 Qxa4 41. Qe2 Qe4+ 42. Qxe4
fxe4 43. Kg2 Kf7 44. h3 Kg6 45. h4 Kf5 46. Ba3 g5 47. hxg5 hxg5 48. fxg5 Kxe5
49. Re1 Kf5 50. Bc1 e3 51. Re2 Ke4 52. Kf1 Kf3 53. Rg2 Rg8 {
a pity. Now the win takes much longer.} (53... Rd8 {!} 54. Kg1 (54. Rxc2 {?}
Nf4 {threatens Rd1#} 55. Kg1 Kxg3 56. Rg2+ Nxg2 {etc.}) 54... Nb4 55. Kh2 e2 {
etc.}) 54. Rxc2 Rxg5 {although not always playing the best moves, black still
manages to win this endgame.} 55. g4 Rxg4 56. Rh2 Ke4 57. Ba3 Nc3 58. Bc5 e2+
59. Ke1 Kd5 60. Rh3 Kc4 61. Bf2 Re4 62. Rh8 Kd3 63. Rd8+ Nd5 64. Rg8 Kc2 65.
Rc8+ Nc3 66. Ra8 Rb4 67. Ra1 Kd3 68. Bg3 Rg4 69. Bf2 Ra4 70. Rxa4 Nxa4 71. Bg3
Nc3 72. Bf2 e5 73. Bg3 e4 74. Bf4 Nd5 75. Bg3 Ne3 76. Kf2 Kd2 77. Kg1 Nf5 78.
Bf4+ e3 79. Kg2 e1=Q 80. Kf3 Kd3 81. Be5 e2 82. Kg4 Ke4 83. Bf6 Qg3+ 84. Kh5
e1=Q 85. Bg5 Qeg1 86. Kg6 Qxg5+ 87. Kf7 Qe7# 0-1