I'm posting this under General Chess, but it might become a topic of the tablebase endgame section (a future 9-man-tablebase "KQRRkqbnp") within a few decades...

It's about a recent game Berkes-Eljanov (see e.g. TWIC 747 or schachbundesliga.de) in the German Bundesliga which I happened to watch last Saturday. The two top players were the very last ones fighting in the team event (the match was already decided), when I left the playing hall after 5½ hours of watching several interesting games. But I had no idea or what here was to follow after about 50 moves of not so particularly unique or fascinating manoeuvres. When I had not the slightest idea about what was to follow. The same evening I saw the rest or the game in the internet relay and double-checked my database: in fact, a material balance of "KQRRkqbnp" has never been played before. And here it comes for about 65 moves. (Please note: The time control was 100min/40 moves + 50 min/20 moves + 30 sec/move in the German Bundesliga. This allows some decent handling of such unique long-lasting endings.)

Neverlethless, Berkes should have improved with 100. Rxb4(!) which had concluded the game about an hour earlier. As it happened, the game lasted about 8 hours...

Enjoy! papageno.

[Event "Bundesliga 2008-9"]
[Site "Eppingen GER"]
[Date "2009.02.28"]
[Round "12"]
[White "Berkes, F."]
[Black "Eljanov, P."]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "2645"]
[BlackElo "2720"]
[PlyCount "251"]
[EventDate "2008.10.03"]
[EventType "team"]
[EventRounds "15"]
[EventCountry "GER"]
[Source "Mark Crowther"]
[SourceDate "2009.03.02"]

1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Bb4 5. Bg5 Nbd7 6. cxd5 exd5 7. Rc1 h6 8. Bxf6 Qxf6 9. e3 c6 10. Bd3 Nb6 11. O-O Bg4 12. h3 Bxf3 13. Qxf3 Qxf3 14. gxf3 O-O-O 15. Kg2 Kb8 16. f4 Be7 17. Ne2 Nc8 18. f5 g6 19. fxg6 fxg6 20. Nf4 Rhg8 21. Nxg6 Rd6 22. Kf3 Rgxg6 23. Bxg6 Rxg6 24. Rg1 Rf6+ 25. Ke2 Nd6 26. Rg8+ Kc7 27. Rcg1 Nf5 28. R1g4 Bd6 29. Rh8 Rf7 30. Rgg8 a5 31. a4 Kb6 32. Rd8 c5 33. Rxh6 Kc7 34. Rhh8 cxd4 35. Rc8+ Kb6 36. h4 dxe3 37. fxe3 Be5 38. Rhe8 Bg3 39. h5 Nd6 40. Re6 Rf2+ 41. Kd1 Rh2 42. Rg8 Rh3 43. h6 Kc5 44. Ke2 Bh2 45. Kf1 Kb4 46. Kg2 Rh5 47. Rg7 b6 48. Kf3 Rh3+ 49. Kg4 Rg3+ 50. Kh5 Rh3+ 51. Kg6 Nc4 52. Rge7 Kxa4 53. h7 Kb3 54. Kg7 Rxh7+ 55. Kxh7 Kxb2 56. Rc6 Bd6 57. Rb7 Bb4 58. e4 Kb3 59. exd5 a4 60. Rg7 a3 61. Rg3+ Bc3 62. d6 a2 63. d7 a1=Q 64. d8=Q Qh1+ 65. Rh6 Qe4+ 66. Kg8 b5 67. Qd1+ Kb4 68. Qd8 Kb3 69. Rhg6 Qe5 70. Rh3 Qe4 71. Rhh6 b4 72. Rg3 Nd2 73. Rgg6 Kb2 74. Qd7 Qa8+ 75. Kf7 Nf3 76. Rh5 Qa2+ 77. Ke7 Nd2 78. Rg2 Kc2 79. Rd5 Kc1 80. Rg1+ Kc2 81. Rg6 Qa1 82. Rc6 Qe1+ 83. Kd8 Qh4+ 84. Kc8 Qf4 85. Kb7 Qe3 86. Qh7+ Kb2 87. Rd3 Qg5 88. Qd7 Nb3 89. Rd5 Qe3 90. Kc8 Nd4 91. Rg6 Nc2 92. Rg4 Qf3 93. Rc4 Qe2 94. Rd3 Qe5 95. Kb7 Na3 96. Rg4 Nc2 97. Rdg3 Nd4 98. Rg2+ Nc2 99. Qc6 Qe3 100. Re4 (100. Rxb4+) 100... Qd3 101. Rf4 Qh7+ 102. Ka6 Qd3+ 103. Kb7 Qh7+ 104. Kb6 Qd3 105. Re4 Qd8+ 106. Ka6 Qd3+ 107. Kb7 b3 108. Rc4 Qh7+ 109. Ka6 Qd3 110. Kb7 Qh7+ 111. Kb6 Qh8 112. Qd6 Qa8 113. Rg5 Qh8 114. Kb7 Qh7+ 115. Rc7 Qe4+ 116. Qc6 Qd3 117. Rc5 Bd4 118. Rb5 Bh8 119. Rd7 Qc3 120. Qd5 Ne3 121. Qe4 Nc2 122. Rd3 Qg7+ 123. Ka6 Nd4 124. Rb6 Qg1 125. Rd2+ Ka3 126. Qe7+ 1-0