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Up Topic The Rybka Lounge / Test Positions / 2R+N+P vs 2r+b+p
- By Peter Grayson (****) [gb] Date 2016-03-28 23:52
This unusual endgame produced a fine win for Black but could you have guessed it from the start position?

8/r5k1/4R3/1bP5/5N2/1r6/p4K2/R7 w - - 0 77


The position came from the game ...

[Event "Big 4 160327"]
[Site "Newport, South Wales"]
[Date "2016.03.28"]
[Round "16.1"]
[White "Komodo 9.42 64-bit"]
[Black "Stockfish 7 64 POPCNT BYO"]
[Result "0-1"]
[ECO "C11"]
[Annotator "0.26;0.03"]
[PlyCount "246"]
[EventDate "2016.03.27"]
[EventType "tourn"]
[Source "Grayson"]

{Intel(R) Xeon(R) CPU E5-2687W 0 @ 3.10GHz 3092 MHz  W=30.1 plies; 10,757kN/s;
184,905,969 TBAs  B=30.7 plies; 12,398kN/s; 86,524,940 TBAs} 1. e4 e6 2. d4 d5
3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 Be7 8. Qd2 O-O 9. dxc5 {
[%eval 26,24] [%emt 0:00:15]} Nxc5 {[%eval 3,24] [%emt 0:00:10]} 10. Be2 {
[%eval 22,24] [%emt 0:00:00] (0-0-0)} b6 {[%eval 0,26] [%emt 0:00:10]} 11. Rd1
{[%eval 26,25] [%emt 0:00:00]} Bb7 {[%eval 5,27] [%emt 0:00:07]} 12. O-O {
[%eval 28,25] [%emt 0:00:14]} Qc8 {[%eval 4,27] [%emt 0:00:00]} 13. Qc1 {
[%eval 29,26] [%emt 0:00:11]} Ne4 {[%eval 0,29] [%emt 0:00:00]} 14. Nb5 {
[%eval 26,27] [%emt 0:00:07] (Nxe4)} Na5 {[%eval -8,23] [%emt 0:00:10]} 15. Nd2
{[%eval 22,28] [%emt 0:00:08] (c3)} Nxd2 {[%eval 0,25] [%emt 0:00:16]} 16. Bxd2
{[%eval 22,27] [%emt 0:00:00]} Bc5+ {[%eval 0,27] [%emt 0:00:07]} 17. Be3 {
[%eval 16,28] [%emt 0:00:31] (Kh1)} Ba6 {[%eval 0,27] [%emt 0:00:11]} 18. b3 {
[%eval 15,28] [%emt 0:00:00] (Bf2)} Qc6 {[%eval -6,24] [%emt 0:00:06] (Bxe3+)}
19. c4 {[%eval 14,25] [%emt 0:00:14]} dxc4 {[%eval 0,25] [%emt 0:00:00]} 20.
Nd6 {[%eval 16,28] [%emt 0:00:21]} Rad8 {[%eval -7,30] [%emt 0:00:00]} 21. Bf3
{[%eval 0,27] [%emt 0:00:11] (Bxc5)} Qc7 {[%eval -28,27] [%emt 0:00:11]} 22.
Bxc5 {[%eval 0,27] [%emt 0:00:01]} Qxc5+ {[%eval -12,25] [%emt 0:00:02]} 23.
Rf2 {[%eval 10,27] [%emt 0:00:04]} Nc6 {[%eval -5,28] [%emt 0:00:03] (b5)} 24.
Bxc6 {[%eval 32,24] [%emt 0:00:09]} Qxc6 {[%eval -4,29] [%emt 0:00:00]} 25. Qe3
{[%eval 26,26] [%emt 0:00:09]} Rd7 {[%eval -5,31] [%emt 0:00:02] (f6)} 26. Rc1
{[%eval 42,23] [%emt 0:00:06] (Rc2)} b5 {[%eval -5,27] [%emt 0:00:09] (h6)} 27.
Rb2 {[%eval 43,27] [%emt 0:00:12] (Rfc2)} Qa8 {[%eval 0,26] [%emt 0:00:10]
(Rc7)} 28. h3 {[%eval 55,23] [%emt 0:00:23]} f6 {[%eval 10,30] [%emt 0:00:27]
(h6)} 29. Rd2 {[%eval 71,23] [%emt 0:00:08] (bxc4)} fxe5 {[%eval 18,27] [%emt
0:00:43]} 30. Qxe5 {[%eval 68,27] [%emt 0:00:00]} Re7 {[%eval 11,28] [%emt 0:
00:22]} 31. Kh2 {[%eval 68,25] [%emt 0:00:10]} Qc6 {[%eval 13,30] [%emt 0:00:
06] (Qb8)} 32. a4 {[%eval 105,24] [%emt 0:00:06] (Rd4)} bxa4 {[%eval 16,27]
[%emt 0:00:17]} 33. bxc4 {[%eval 94,25] [%emt 0:00:00]} Bb7 {[%eval 21,23]
[%emt 0:00:05]} 34. Re2 {[%eval 83,24] [%emt 0:00:15] (c5)} h6 {[%eval 18,26]
[%emt 0:00:07]} 35. Rc3 {[%eval 80,26] [%emt 0:00:01] (f5)} Kh7 {[%eval 6,28]
[%emt 0:00:11] (Qc7)} 36. c5 {[%eval 56,24] [%emt 0:00:32]} Qd5 {[%eval 3,31]
[%emt 0:00:00]} 37. Qe3 {[%eval 38,23] [%emt 0:00:09] (Nxb7)} Bc6 {[%eval 0,31]
[%emt 0:00:08]} 38. Rd3 {[%eval 33,23] [%emt 0:00:00] (f5)} Qh5 {[%eval 0,28]
[%emt 0:00:08]} 39. Rdd2 {[%eval 13,22] [%emt 0:00:00] (f5)} Rb8 {[%eval 0,27]
[%emt 0:00:21] (Rc7)} 40. Qd3+ {[%eval 14,25] [%emt 0:00:17]} Kg8 {[%eval 0,32]
[%emt 0:00:00] (Kh8)} 41. Rb2 {[%eval 41,23] [%emt 0:00:17] (Qc4)} Rf8 {
[%eval 0,29] [%emt 0:00:09]} 42. Re5 {[%eval 13,26] [%emt 0:00:05] (f5)} Qh4 {
[%eval 0,28] [%emt 0:00:09]} 43. g3 {[%eval 9,25] [%emt 0:00:00]} Qf6 {[%eval
0,29] [%emt 0:00:03]} 44. Rb4 {[%eval 3,28] [%emt 0:00:15] (Rd2)} Rc7 {[%eval
-21,24] [%emt 0:00:14] (g5)} 45. h4 {[%eval 0,23] [%emt 0:00:16]} Kh8 {[%eval
-23,26] [%emt 0:00:10] (g5)} 46. h5 {[%eval 22,25] [%emt 0:00:21] (Qe3)} Rd8 {
[%eval 0,24] [%emt 0:00:13] (Bd5)} 47. Qe3 {[%eval 28,23] [%emt 0:00:19]} Kg8 {
[%eval 0,30] [%emt 0:00:00] (Rf8)} 48. Kh3 {[%eval 17,22] [%emt 0:00:13] (Qe2)}
Qf8 {[%eval -18,25] [%emt 0:00:17] (Rf8)} 49. Rb1 {[%eval 0,24] [%emt 0:00:14]
(Qd3)} Rb8 {[%eval -57,25] [%emt 0:00:18]} 50. Re1 {[%eval 12,28] [%emt 0:00:
00]} Rb3 {[%eval -38,26] [%emt 0:00:33] (Rb2)} 51. Qf2 {[%eval 0,28] [%emt 0:
00:07] (Qc1)} Re7 {[%eval -60,25] [%emt 0:00:24] (Qf6)} 52. Qc2 {[%eval 0,29]
[%emt 0:00:05] (Qd4)} Qf6 {[%eval -49,26] [%emt 0:00:22]} 53. Kh2 {[%eval 0,32]
[%emt 0:00:00]} a6 {[%eval -66,25] [%emt 0:00:15] (Rb4)} 54. Rd1 {[%eval 0,26]
[%emt 0:00:11]} Rb4 {[%eval -74,25] [%emt 0:00:07] (g5)} 55. Kh3 {[%eval 0,26]
[%emt 0:00:08]} a5 {[%eval -65,26] [%emt 0:00:05] (Rb3)} 56. Rde1 {[%eval 0,25]
[%emt 0:00:12] (Nc4)} a3 {[%eval -97,25] [%emt 0:00:08]} 57. Nc4 {[%eval 0,24]
[%emt 0:00:00]} a4 {[%eval -84,23] [%emt 0:00:01] (Bd5)} 58. Nxa3 {[%eval 0,24]
[%emt 0:00:05]} Rb3 {[%eval -109,24] [%emt 0:00:02] (Rf7)} 59. Nc4 {[%eval -65,
24] [%emt 0:00:06]} g5 {[%eval -100,27] [%emt 0:00:06]} 60. fxg5 {[%eval -56,
28] [%emt 0:00:03]} hxg5 {[%eval -69,29] [%emt 0:00:19]} 61. Qg6+ {[%eval -56,
31] [%emt 0:00:00]} Qxg6 {[%eval -77,21] [%emt 0:00:01]} 62. hxg6 {[%eval -51,
29] [%emt 0:00:02]} Rb4 {[%eval -73,25] [%emt 0:00:02] (Ra7)} 63. Nd6 {[%eval
-51,27] [%emt 0:00:06]} a3 {[%eval -94,27] [%emt 0:00:07] (Ra7)} 64. Ra1 {
[%eval -59,27] [%emt 0:00:09]} Ra7 {[%eval -96,28] [%emt 0:00:00]} 65. Nc8 {
[%eval -43,26] [%emt 0:00:07]} Rc7 {[%eval -100,27] [%emt 0:00:07]} 66. Nb6 {
[%eval -43,28] [%emt 0:00:00]} Rb3 {[%eval -93,20] [%emt 0:00:01]} 67. Kg4 {
[%eval -45,29] [%emt 0:00:10] (Rxg5)} Kg7 {[%eval -110,21] [%emt 0:00:05]} 68.
Kxg5 {[%eval -104,28] [%emt 0:00:21] (Rxe6)} Rxg3+ {[%eval -165,22] [%emt 0:00:
06]} 69. Kf4 {[%eval -133,26] [%emt 0:00:00]} Rxg6 {[%eval -172,21] [%emt 0:00:
01]} 70. Rh5 {[%eval -139,26] [%emt 0:00:04]} Be8 {[%eval -178,24] [%emt 0:00:
02]} 71. Re5 {[%eval -132,27] [%emt 0:00:05]} Rf7+ {[%eval -179,23] [%emt 0:00:
00]} 72. Ke3 {[%eval -138,26] [%emt 0:00:03]} Ra7 {[%eval -168,23] [%emt 0:00:
07] (Bc6)} 73. Nd5 {[%eval -124,23] [%emt 0:00:06]} Bb5 {[%eval -166,24] [%emt
0:00:00] (Ra4)} 74. Nf4 {[%eval -126,22] [%emt 0:00:04]} Rg3+ {[%eval -172,24]
[%emt 0:00:02]} 75. Kf2 {[%eval -133,23] [%emt 0:00:01]} Rb3 {[%eval -160,24]
[%emt 0:00:05]} 76. Rxe6 {[%eval -127,25] [%emt 0:00:01]} a2 {[%eval -145,24]
[%emt 0:00:03]} 77. c6 {[%eval -127,24] [%emt 0:00:02]} Rb1 {[%eval -144,22]
[%emt 0:00:00]} 78. Rg6+ {[%eval -126,27] [%emt 0:00:18] (c7)} Kf7 {[%eval
-172,25] [%emt 0:00:13]} 79. c7 {[%eval -132,28] [%emt 0:00:00]} Rb2+ {[%eval
-162,22] [%emt 0:00:02]} 80. Ke3 {[%eval -132,29] [%emt 0:00:06]} Rxc7 {
[%eval -175,26] [%emt 0:00:03]} 81. Rg2 {[%eval -126,28] [%emt 0:00:04]} Rb3+ {
[%eval -166,24] [%emt 0:00:00]} 82. Kd4 {[%eval -132,30] [%emt 0:00:12] (Ke4)}
Rc4+ {[%eval -170,28] [%emt 0:00:20]} 83. Ke5 {[%eval -131,32] [%emt 0:00:00]}
Re3+ {[%eval -175,25] [%emt 0:00:03]} 84. Kd6 {[%eval -132,30] [%emt 0:00:03]}
Rxf4 {[%eval -179,28] [%emt 0:00:07]} 85. Raxa2 {[%eval -131,31] [%emt 0:00:00]
} Rf6+ {[%eval -177,27] [%emt 0:00:20]} 86. Kc5 {[%eval -127,30] [%emt 0:00:00]
} Rf5+ {[%eval -172,22] [%emt 0:00:02]} 87. Kb4 {[%eval -133,29] [%emt 0:00:47]
} Bc6 {[%eval -179,28] [%emt 0:00:00] (Re4+)} 88. Rgf2 {[%eval -132,28] [%emt
0:00:11]} Bf3 {[%eval -177,28] [%emt 0:00:00]} 89. Rac2 {[%eval -131,28] [%emt
0:00:29]} Ke7 {[%eval -179,29] [%emt 0:00:00] (Re4+)} 90. Rh2 {[%eval -137,24]
[%emt 0:00:05]} Rf4+ {[%eval -183,25] [%emt 0:00:00]} 91. Rc4 {[%eval -135,27]
[%emt 0:00:11]} Rf8 {[%eval -184,29] [%emt 0:00:00]} 92. Rc5 {[%eval -142,27]
[%emt 0:00:16] (Rh7+)} Rb8+ {[%eval -187,28] [%emt 0:00:11]} 93. Kc4 {[%eval
-142,27] [%emt 0:00:00]} Kf6 {[%eval -187,30] [%emt 0:00:30] (Re1)} 94. Rd2 {
[%eval -141,30] [%emt 0:00:07] (Kd4)} Rh8 {[%eval -194,31] [%emt 0:00:10] (Re1)
} 95. Kd4 {[%eval -213,26] [%emt 0:00:10] (Kb4)} Ra3 {[%eval -297,27] [%emt 0:
00:07]} 96. Rcc2 {[%eval -579,28] [%emt 0:00:00]} Rh4+ {[%eval -387,25] [%emt
0:00:02]} 97. Kc5 {[%eval -612,28] [%emt 0:00:00]} Ra5+ {[%eval -4327,31]
[%emt 0:00:20] (Ra8)} 98. Kb6 {[%eval -1212,27] [%emt 0:00:06]} Rhh5 {[%eval
-4042,34] [%emt 0:00:00]} 99. Rb2 {[%eval -1288,29] [%emt 0:00:05] (Ra2)} Ra8 {
[%eval -4734,36] [%emt 0:00:14]} 100. Rf2 {[%eval -1243,32] [%emt 0:00:00]} Rf5
{[%eval -12334,37] [%emt 0:00:21]} 101. Rfc2 {[%eval -1298,35] [%emt 0:00:00]
(Rh2)} Re5 {[%eval -12337,42] [%emt 0:00:06] (Kg5)} 102. Rf2 {[%eval -25000,35]
[%emt 0:00:14]} Kg5 {[%eval -12337,46] [%emt 0:00:00]} 103. Rfd2 {[%eval
-25000,41] [%emt 0:00:17] (Rbc2)} Rc8 {[%eval -12339,44] [%emt 0:00:06]} 104.
Rbc2 {[%eval -25000,44] [%emt 0:00:00]} Re6+ {[%eval -12340,44] [%emt 0:00:02]
(Rb8+)} 105. Ka5 {[%eval -25000,43] [%emt 0:00:03]} Ra8+ {[%eval -12341,46]
[%emt 0:00:04]} 106. Kb4 {[%eval -25000,44] [%emt 0:00:03]} Rb8+ {[%eval
-12342,46] [%emt 0:00:00]} 107. Kc3 {[%eval -25000,44] [%emt 0:00:04]} Be4 {
[%eval -12343,47] [%emt 0:00:02]} 108. Rb2 {[%eval -25000,45] [%emt 0:00:03]}
Rc8+ {[%eval -12343,48] [%emt 0:00:00]} 109. Kb4 {[%eval -25000,45] [%emt 0:00:
03]} Re7 {[%eval -12344,49] [%emt 0:00:05]} 110. Rb3 {[%eval -25000,45] [%emt
0:00:04]} Rc1 {[%eval -12345,49] [%emt 0:00:00]} 111. Ka3 {[%eval -25000,47]
[%emt 0:00:11]} Ra7+ {[%eval -12346,52] [%emt 0:00:00]} 112. Kb2 {[%eval
-25000,43] [%emt 0:00:04]} Rb1+ {[%eval -12346,50] [%emt 0:00:00]} 113. Kc3 {
[%eval -25000,35] [%emt 0:00:00]} Rc7+ {[%eval -12347,53] [%emt 0:00:12]} 114.
Kb4 {[%eval -25000,44] [%emt 0:00:00]} Rb7+ {[%eval -12348,53] [%emt 0:00:07]}
115. Kc5 {[%eval -25000,43] [%emt 0:00:00]} R7xb3 {[%eval -12349,53] [%emt 0:
00:15]} 116. Rf2 {[%eval -25000,44] [%emt 0:00:00]} Rc1+ {[%eval -12350,52]
[%emt 0:00:04]} 117. Kd4 {[%eval -25000,44] [%emt 0:00:05] (Kd6)} Rd3+ {
[%eval -12350,56] [%emt 0:00:21]} 118. Ke5 {[%eval -25000,50] [%emt 0:00:00]}
Rc5+ {[%eval -12351,57] [%emt 0:00:05]} 119. Ke6 {[%eval -25000,53] [%emt 0:00:
16]} Bf5+ {[%eval -12352,61] [%emt 0:00:01]} 120. Rxf5+ {[%eval -25000,99]
[%emt 0:00:00]} Rxf5 {[%eval -32759,1] [%emt 0:00:00]} 121. Ke7 {[%eval -32761,
1] [%emt 0:00:00]} Re5+ {[%eval -32761,1] [%emt 0:00:00]} 122. Kf7 {[%eval
-32763,0] [%emt 0:00:00]} Rd8 {[%eval -32763,1] [%emt 0:00:00]} 123. Kg7 {
[%eval -32765,1] [%emt 0:00:00]} Re7# {[%eval -32765,1] [%emt 0:00:00]} 0-1
Up Topic The Rybka Lounge / Test Positions / 2R+N+P vs 2r+b+p

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