Houdini vs Stockfish Match 2014

[RIDDICK]

Is there a way to download all database as pgn, but if it is possible with time/depth annotations ?!

Hi Sedat Canbaz, thanks! About full PGN file:

Good idea for a tournament, but the PGNs for the individual games (clicking on c8 square) don't have basics like depth or eval, just the moves. A little too bare bones, IMO.

Hi Rob Nicholas, the full PGN file (eval, depth and move time) will be posted at the end of the match.

[RIDDICK]

HOUDINI: 46.0/88 [ +011/=068/-007 ] - STOCKFISH: 42.0/88 [ +007/=068/-011 ]

[pgn][Event "HOUDINI vs STOCKFISH MATCH 2014"]
[Site "RIDDICK"]
[Date "2014.03.13"]
[Round "87"]
[White "HOUDINI 4 PRO X64"]
[Black "STOCKFISH 100314 64 SSE4.2"]
[Result "1/2-1/2"]
[ECO "B69"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8.
O-O-O Bd7 9. f4 Be7 10. Nf3 b5 11. Bxf6 gxf6 12. Kb1 Rc8 13. f5 Qa5 14. Qh6 Nb4
15. a3 Nxc2 16. Kxc2 Qa4+ 17. Kc1 b4 18. fxe6 fxe6 19. Rd4 Rxc3+ 20. bxc3 Qxa3+
21. Kd1 bxc3 22. Bd3 e5 23. Rc4 Qb3+ 24. Ke1 Bd8 25. Qc1 Rg8 26. g3 Bb5 27.
Rxc3 Ba5 28. Kd2 Qa2+ 29. Kd1 Bxc3 30. Bxb5+ axb5 31. Qxc3 Qb1+ 32. Qc1 Qxe4
33. Rf1 Qc4 34. Nd2 Qxc1+ 35. Kxc1 Ke7 36. Ne4 Rf8 37. Nc3 Rb8 38. Kd2 Ke6 39.
Ne4 d5 40. Nc5+ Kd6 41. Na6 Rf8 42. g4 Rf7 43. Kd3 Rf8 44. h3 Rf7 45. h4 Rf8
46. h5 Rf7 47. Ke3 Rf8 48. Nb4 Kc5 49. Nd3+ Kd6 50. Rf2 Rf7 51. h6 Rf8 52. Rb2
Rg8 53. Rxb5 Rxg4 54. Rb6+ Ke7 55. Kf2 Kf7 56. Rb7+ Kg6 57. Rg7+ Kf5 58. Rxh7
Rd4 59. Nc5 Rh4 60. Kg3 Rh1 61. Kg2 Rh4 62. Kf2 d4 63. Rh8 Rh3 64. Kg2 Rh4 65.
Kg3 Rh1 66. h7 Kg6 67. Nd7 Kf5 68. Kg2 d3 69. Nxf6 d2 70. Rd8 Rh4 71. Rd6 e4
72. Kg3 Rh1 73. Nh5 Rxh5 74. h8=Q Rxh8 1/2-1/2[/pgn]
[pgn][Event "HOUDINI vs STOCKFISH MATCH 2014"]
[Site "RIDDICK"]
[Date "2014.03.13"]
[Round "88"]
[White "STOCKFISH 100314 64 SSE4.2"]
[Black "HOUDINI 4 PRO X64"]
[Result "1/2-1/2"]
[ECO "B67"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8.
O-O-O Bd7 9. f4 h6 10. Bh4 Be7 11. Nf3 Qc7 12. Kb1 Rd8 13. Bd3 b5 14. Rhe1 Bc8
15. g4 b4 16. Bxf6 Bxf6 17. Ne2 Qb6 18. h4 Be7 19. g5 Bb7 20. Rf1 hxg5 21. hxg5
Kd7 22. f5 e5 23. Bc4 f6 24. Bd5 Kc8 25. g6 Rh3 26. Nc1 Rdh8 27. Qg2 Na5 28.
Rfe1 Bxd5 29. Rxd5 Bd8 30. Rdd1 Bc7 31. Nb3 Qc6 32. Nxa5 Bxa5 33. Rd5 Bb6 34.
Rd3 R3h5 35. c3 a5 36. cxb4 axb4 37. Qe2 Bc5 38. Rdd1 Kc7 39. Rf1 Kb8 40. Nd2
Rh2 41. Qc4 Kc7 42. Nf3 Rg2 43. Rfe1 Kb6 44. Rd3 Qb5 45. Qb3 Ka7 46. Red1 Qc6
47. Nd2 Rc8 48. Rc1 Rg1 49. Rxg1 Bxg1 50. a3 Bc5 51. Qc4 bxa3 52. bxa3 Rc7 53.
Kc2 Qa6 54. Kd1 Rc8 55. Rb3 Qxc4 56. Nxc4 Ka6 57. Ke2 Rh8 58. Nd2 Bb6 59. Rd3
Bc5 60. Nc4 Rd8 61. a4 Kb7 62. Rh3 Kc6 63. Rh7 d5 64. Na5+ Kb6 65. Nb3 Bf8 66.
exd5 Kc7 67. Nd2 Kd6 68. Ne4+ Kxd5 69. Rh4 Rb8 70. Nc3+ Kc6 71. Rh8 Kc5 72. Kd3
Rd8+ 73. Ke4 Kb6 74. Rg8 Rd4+ 75. Kf3 Rd3+ 76. Ke2 Rxc3 77. Rxf8 Ra3 78. Ra8
Ra1 79. Ke3 Re1+ 80. Kd3 Rd1+ 81. Ke4 Rd7 82. a5+ Kb5 83. Ke3 Rb7 84. a6 Rd7
1/2-1/2[/pgn]

[RIDDICK]

Nice double win by Stockfish! In the 89th round endgame, Houdini completely missed the winning line for black (see screenshot)!



HOUDINI: 46.0/90 [ +011/=068/-009 ] - STOCKFISH: 44.0/90 [ +009/=068/-011 ]

[pgn][Event "HOUDINI vs STOCKFISH MATCH 2014"]
[Site "RIDDICK"]
[Date "2014.03.15"]
[Round "89"]
[White "HOUDINI 4 PRO X64"]
[Black "STOCKFISH 100314 64 SSE4.2"]
[Result "0-1"]
[ECO "B66"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8.
O-O-O h6 9. Be3 Be7 10. f3 Nxd4 11. Bxd4 b5 12. Kb1 Rb8 13. g4 Qa5 14. e5 dxe5
15. Bxe5 Rb7 16. Qe3 b4 17. Bxf6 gxf6 18. Ne4 Kf8 19. Bd3 Qb6 20. Qe2 Rc7 21.
Ng3 a5 22. Bb5 Rc5 23. Ba4 Re5 24. Qf1 Bb7 25. Nh5 f5 26. h3 Rg8 27. Qg2 Qe3
28. Qg3 fxg4 29. hxg4 Bxf3 30. Rd3 Rxh5 31. gxh5 Rxg3 32. Rxe3 Bg5 33. Rb3 Bxh1
34. Rxg3 Be4 35. a3 f5 36. axb4 axb4 37. Rg1 Kf7 38. Ka2 f4 39. Kb3 f3 40. Rf1
Kf6 41. Kxb4 Bd2+ 42. Kb3 e5 43. c4 Bb7 44. c5 e4 45. Kc2 Bf4 46. b4 Ba6 47. b5
Bc8 48. Bb3 Be3 49. c6 Bf5 50. Kc3 Ke5 51. Bd1 Kf4 52. Bb3 Bb6 53. Ra1 e3 0-1[/pgn]
[pgn][Event "HOUDINI vs STOCKFISH MATCH 2014"]
[Site "RIDDICK"]
[Date "2014.03.15"]
[Round "90"]
[White "STOCKFISH 100314 64 SSE4.2"]
[Black "HOUDINI 4 PRO X64"]
[Result "1-0"]
[ECO "B66"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8.
O-O-O h6 9. Be3 Be7 10. f3 Qc7 11. g4 b5 12. Nxc6 Qxc6 13. h4 Nd7 14. Kb1 Ne5
15. Qg2 Rb8 16. h5 Bb7 17. g5 hxg5 18. Bxg5 Qc5 19. Be2 Bc6 20. Bxe7 Kxe7 21.
f4 Nc4 22. Bxc4 bxc4 23. Rh3 a5 24. Ka1 Qb6 25. Rb1 Qd4 26. Qg5+ Qf6 27. Qg3
Qd4 28. e5 dxe5 29. fxe5 Kf8 30. Rh4 Qb6 31. h6 Rxh6 32. Rxh6 gxh6 33. Qf4 Ke8
34. Qxh6 Rb7 35. Qh8+ Ke7 36. Qh4+ Kd7 37. Qxc4 Qb4 38. Qd3+ Kc7 39. a3 Qc5 40.
Rd1 Kb8 41. Qd4 Qxd4 42. Rxd4 Kc7 43. Rf4 Kb6 44. b4 Rd7 45. Kb2 Ka6 46. Kb3
Kb7 47. b5 Bd5+ 48. Nxd5 Rxd5 49. c4 1-0[/pgn]

[RIDDICK]

HOUDINI: 47.0/92 [ +011/=070/-009 ] - STOCKFISH: 45.0/92 [ +009/=070/-011 ]

[pgn][Event "HOUDINI vs STOCKFISH MATCH 2014"]
[Site "RIDDICK"]
[Date "2014.03.16"]
[Round "91"]
[White "HOUDINI 4 PRO X64"]
[Black "STOCKFISH 100314 64 SSE4.2"]
[Result "1/2-1/2"]
[ECO "B89"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 Be7 8.
Qe2 a6 9. Rd1 Nxd4 10. Bxd4 b5 11. Bb3 O-O 12. a3 Qc7 13. O-O Bd7 14. Rd3 a5
15. Rfd1 Bc6 16. a4 e5 17. Be3 bxa4 18. Bxa4 Bxe4 19. Nxe4 Nxe4 20. Bb5 Rab8
21. c4 Rfd8 22. g3 f5 23. f3 Nf6 24. Bg5 e4 25. R3d2 exf3 26. Qxf3 Ne4 27. Bxe7
Qxe7 28. Re2 Qa7+ 29. Qe3 Qxe3+ 30. Rxe3 Nc5 31. Re7 a4 32. Rc7 h5 33. Rd5 g6
34. Kg2 Ra8 35. Bc6 Rab8 36. Rd2 Ne4 37. Re2 Rdc8 38. Bd5+ Kh8 39. Ra7 Rb4
1/2-1/2[/pgn]
[pgn][Event "HOUDINI vs STOCKFISH MATCH 2014"]
[Site "RIDDICK"]
[Date "2014.03.16"]
[Round "92"]
[White "STOCKFISH 100314 64 SSE4.2"]
[Black "HOUDINI 4 PRO X64"]
[Result "1/2-1/2"]
[ECO "B89"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 Be7 8.
Qe2 a6 9. Rd1 Qc7 10. Nxc6 Qxc6 11. f3 O-O 12. a4 Bd7 13. O-O Rfc8 14. Bd3 Qc7
15. Qf2 Qa5 16. Ra1 Bc6 17. Bb6 Qh5 18. Bd4 Nd7 19. a5 Re8 20. b4 Red8 21. Be2
Qh6 22. Rab1 Bf6 23. Rbd1 Rac8 24. Bxf6 Qxf6 25. Qe3 Ne5 26. f4 Ng6 27. Rd3 d5
28. exd5 exd5 29. Qd4 Qxd4+ 30. Rxd4 Ne7 31. Rfd1 Re8 32. Bd3 g6 33. b5 axb5
34. Nxb5 Bxb5 35. Bxb5 Red8 36. Bd3 Nc6 37. Ra4 Ra8 38. Rb1 Rxa5 39. Rxa5 Nxa5
40. Rb5 Nc4 41. Rxb7 Ne3 42. Kf2 Re8 43. Kf3 h5 44. Rb3 Kg7 45. h3 h4 46. Rb7
d4 47. Rc7 Ra8 48. c4 Ra3 49. Ke4 Nxg2 50. c5 Nxf4 51. Bc4 Nxh3 1/2-1/2[/pgn]

[RIDDICK]

Nice win by Stockfish in the 93rd round, Houdini oddly missed a fatal tactics (27.Bc4?)!!

Author: Ronald de Man
Date: Sun Mar 16 22:15:55 2014 +0100
Timestamp: 1395004555

HOUDINI: 47.5/94 [ +011/=071/-010 ] - STOCKFISH: 46.5/94 [ +010/=071/-011 ]

[pgn][Event "HOUDINI vs STOCKFISH MATCH 2014"]
[Site "RIDDICK"]
[Date "2014.03.20"]
[Round "93"]
[White "HOUDINI 4 PRO X64"]
[Black "STOCKFISH 160314 64 SSE4.2"]
[Result "0-1"]
[ECO "B57"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Qb6 7. Nb3 e6 8.
O-O Be7 9. Be2 O-O 10. Qd3 Nb4 11. Qg3 Nxc2 12. Bh6 Ne8 13. Rac1 Nb4 14. Be3
Qd8 15. f4 Bd7 16. Rfd1 Nc6 17. a3 Bh4 18. Qf3 e5 19. g3 Bf6 20. f5 Bg5 21. Kg2
Bxe3 22. Qxe3 g6 23. g4 Kh8 24. h3 gxf5 25. exf5 Ne7 26. Kh2 Bc6 27. Bc4 Rg8
28. Bxf7 Nxf5 29. Qf2 Rg7 30. Bd5 Ne7 31. Bxc6 bxc6 32. Ne4 Qc7 33. Qf8+ Rg8
34. Qf2 Rg6 35. Rd3 d5 36. Nbc5 Ng7 37. Qf7 dxe4 38. Rd7 Qb6 39. Rb7 Qa5 40.
Nxe4 Qd5 41. Qf3 Qd8 42. Rf1 Nd5 43. Rd7 Qb8 44. Qf7 Qxb2+ 45. Rf2 Qb8 46. g5
Nf4 47. h4 Qf8 48. Nd6 Qxd6 49. Rxd6 Rxd6 50. a4 Rad8 51. Qe7 Kg8 52. Qb7 Rd3
53. Qxc6 Rh3+ 0-1[/pgn]
[pgn][Event "HOUDINI vs STOCKFISH MATCH 2014"]
[Site "RIDDICK"]
[Date "2014.03.20"]
[Round "94"]
[White "STOCKFISH 160314 64 SSE4.2"]
[Black "HOUDINI 4 PRO X64"]
[Result "1/2-1/2"]
[ECO "B57"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Qb6 7. Nb3 e6 8.
O-O Be7 9. Be2 Qc7 10. Qd3 a6 11. Qg3 b5 12. Qxg7 Rg8 13. Qh6 b4 14. Nd1 Nxe4
15. a3 Nf6 16. Qh4 Rb8 17. Bg5 Nd5 18. Bxe7 Qxe7 19. Qxe7+ Kxe7 20. Bf3 bxa3
21. Rxa3 Ndb4 22. Ne3 f5 23. Bxc6 Nxc6 24. f4 Rb5 25. Re1 Kf6 26. Rd1 d5 27. g3
h5 28. Kf2 h4 29. gxh4 Rh8 30. Ng2 Bb7 31. h3 d4 32. Rd2 a5 33. Ra4 Ba8 34.
Nxd4 Nxd4 35. Rdxd4 Bxg2 36. Kxg2 Rxb2 37. Rd2 Rxh4 38. Kg3 Rh8 39. Rxa5 Rg8+
40. Kf3 1/2-1/2[/pgn]

[RIDDICK]

Big comeback by Stockfish and the match was back in balance! Houdini was really hammered by Stockfish in the last games.

HOUDINI: 48.0/96 [ +011/=072/-011 ] - STOCKFISH: 48.0/96 [ +011/=072/-011 ]

[pgn][Event "HOUDINI vs STOCKFISH MATCH 2014"]
[Site "RIDDICK"]
[Date "2014.03.21"]
[Round "95"]
[White "HOUDINI 4 PRO X64"]
[Black "STOCKFISH 160314 64 SSE4.2"]
[Result "0-1"]
[ECO "B30"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. c3 d5 6. exd5 Qxd5 7. Re1 a6 8.
Bxc6+ Nxc6 9. d4 Bd6 10. c4 Qxc4 11. b3 Qd5 12. Nc3 Qh5 13. Ne4 Bc7 14. dxc5
O-O 15. Bb2 f6 16. Ba3 e5 17. Nd6 Bg4 18. Qd5+ Kh8 19. Re3 Rab8 20. Rc1 Ne7 21.
Qd3 Ng6 22. h3 Bd7 23. Nxb7 Bf5 24. Qf1 Nf4 25. Nd6 Bxd6 26. cxd6 Nxh3+ 27.
gxh3 Bxh3 28. Qc4 Qg6+ 29. Ng5 Bd7 30. Qd3 Qxg5+ 31. Rg3 Qh5 32. Rc7 Rbd8 33.
Bb4 Rg8 34. Qf3 Qe8 35. Qd3 g5 36. Ba5 Rg6 37. Rh3 Qe6 38. Rh2 Rg7 39. Rc4 Rb8
40. a4 Be8 41. Bc7 Bg6 42. Qe3 Rbg8 43. Rc1 g4 44. Rh6 g3 45. f3 g2 46. b4 Qd7
47. a5 Qe6 48. Qf2 Qb3 49. Bb6 Qxb4 50. Rd1 Qc4 51. Qd2 Be8 52. Rc1 Qe6 53. Bf2
Qf5 54. Qe3 Bh5 55. f4 Rb8 56. fxe5 fxe5 57. d7 Rxd7 58. Re1 Bf3 59. Bg3 Re8
60. Rh4 Rde7 61. Qd2 Bc6 62. Qf2 Qg6 63. Qe3 Re6 64. Ra1 Qf5 65. Qf2 Bf3 66.
Re1 Rf6 67. Rh2 Qg6 68. Qa7 Bc6 69. Qe3 Rf3 0-1[/pgn]
[pgn][Event "HOUDINI vs STOCKFISH MATCH 2014"]
[Site "RIDDICK"]
[Date "2014.03.21"]
[Round "96"]
[White "STOCKFISH 160314 64 SSE4.2"]
[Black "HOUDINI 4 PRO X64"]
[Result "1/2-1/2"]
[ECO "B30"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. c3 d5 6. exd5 Qxd5 7. Re1 a6 8.
Bxc6+ Nxc6 9. d4 Be7 10. Be3 c4 11. a4 O-O 12. Nbd2 Bd7 13. b3 cxb3 14. c4 Qf5
15. Qxb3 Nb4 16. Ne5 Bc6 17. Rac1 a5 18. f3 h5 19. Nxc6 bxc6 20. Ne4 Rfd8 21.
Rcd1 Rab8 22. Qc3 Rd7 23. h3 Na6 24. Re2 Rb4 25. Ra2 Qg6 26. Raa1 Rd8 27. Kh1
Kh7 28. Bg1 Rd7 29. Qc2 Rb8 30. Rab1 Nb4 31. Qe2 Rbd8 32. Rb2 Na6 33. Rbd2 Nb4
34. Bf2 Na6 35. h4 Kg8 36. Kg1 Ba3 37. Be3 Bb4 38. Rd3 Bf8 39. Bf4 Qf5 40. Bg3
c5 41. Bf2 cxd4 42. Rxd4 Rxd4 43. Rxd4 Rb8 44. Qd3 Nc5 45. Nxc5 Bxc5 46. Qxf5
exf5 47. Rd1 Bxf2+ 48. Kxf2 Kf8 49. c5 Rb4 50. Rc1 Ke8 51. c6 Kd8 52. Rc5 Rxa4
53. Rxf5 1/2-1/2[/pgn]

[hgm]

75% draws???. You really should use a better (more unbalanced) set of opening lines.

[beram]

75% draws???. You really should use a better (more unbalanced) set of opening lines.

It is not because of the openings set used, but 1) because of the very LTC and search depth on Riddicks fast machine and 2) the settings of Houdini ct= 0 and 3) the fact that both top engines are pretty equal in strenght that the draw rate is that high.

...The Starting positions will be drawn from Graham Banks's chess openening library: Graham2014-1F (thank you Graham); for a total of 248 positions! I can't dedicate my computer to this match 24/7, so this test will last a long time! I'm sorry. Stockfish version is 070114 by Ronald de Man (tablebases support).

[RIDDICK]

75% draws???. You really should use a better (more unbalanced) set of opening lines.

It does not make sense to use unbalanced opening line only or vice versa. I'm using a rather complete and heterogeneous openings library: Graham2014-1F book (248 handpicked and tested lines). The high percentage of draws due to similar strength of both engines, is certainly not a problem for me. This is not a football match. There are still 400 games, the match is very long!

[mwyoung]

Nice double win by Stockfish! In the 89th round endgame, Houdini completely missed the winning line for black (see screenshot)!



HOUDINI: 46.0/90 [ +011/=068/-009 ] - STOCKFISH: 44.0/90 [ +009/=068/-011 ]

[pgn][Event "HOUDINI vs STOCKFISH MATCH 2014"]
[Site "RIDDICK"]
[Date "2014.03.15"]
[Round "89"]
[White "HOUDINI 4 PRO X64"]
[Black "STOCKFISH 100314 64 SSE4.2"]
[Result "0-1"]
[ECO "B66"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8.
O-O-O h6 9. Be3 Be7 10. f3 Nxd4 11. Bxd4 b5 12. Kb1 Rb8 13. g4 Qa5 14. e5 dxe5
15. Bxe5 Rb7 16. Qe3 b4 17. Bxf6 gxf6 18. Ne4 Kf8 19. Bd3 Qb6 20. Qe2 Rc7 21.
Ng3 a5 22. Bb5 Rc5 23. Ba4 Re5 24. Qf1 Bb7 25. Nh5 f5 26. h3 Rg8 27. Qg2 Qe3
28. Qg3 fxg4 29. hxg4 Bxf3 30. Rd3 Rxh5 31. gxh5 Rxg3 32. Rxe3 Bg5 33. Rb3 Bxh1
34. Rxg3 Be4 35. a3 f5 36. axb4 axb4 37. Rg1 Kf7 38. Ka2 f4 39. Kb3 f3 40. Rf1
Kf6 41. Kxb4 Bd2+ 42. Kb3 e5 43. c4 Bb7 44. c5 e4 45. Kc2 Bf4 46. b4 Ba6 47. b5
Bc8 48. Bb3 Be3 49. c6 Bf5 50. Kc3 Ke5 51. Bd1 Kf4 52. Bb3 Bb6 53. Ra1 e3 0-1[/pgn]
[pgn][Event "HOUDINI vs STOCKFISH MATCH 2014"]
[Site "RIDDICK"]
[Date "2014.03.15"]
[Round "90"]
[White "STOCKFISH 100314 64 SSE4.2"]
[Black "HOUDINI 4 PRO X64"]
[Result "1-0"]
[ECO "B66"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8.
O-O-O h6 9. Be3 Be7 10. f3 Qc7 11. g4 b5 12. Nxc6 Qxc6 13. h4 Nd7 14. Kb1 Ne5
15. Qg2 Rb8 16. h5 Bb7 17. g5 hxg5 18. Bxg5 Qc5 19. Be2 Bc6 20. Bxe7 Kxe7 21.
f4 Nc4 22. Bxc4 bxc4 23. Rh3 a5 24. Ka1 Qb6 25. Rb1 Qd4 26. Qg5+ Qf6 27. Qg3
Qd4 28. e5 dxe5 29. fxe5 Kf8 30. Rh4 Qb6 31. h6 Rxh6 32. Rxh6 gxh6 33. Qf4 Ke8
34. Qxh6 Rb7 35. Qh8+ Ke7 36. Qh4+ Kd7 37. Qxc4 Qb4 38. Qd3+ Kc7 39. a3 Qc5 40.
Rd1 Kb8 41. Qd4 Qxd4 42. Rxd4 Kc7 43. Rf4 Kb6 44. b4 Rd7 45. Kb2 Ka6 46. Kb3
Kb7 47. b5 Bd5+ 48. Nxd5 Rxd5 49. c4 1-0[/pgn]

Many of us are seeing examples of this in the endgame. When SF plays Houdini. I would not say that Houdini plays bad in the endgame. Because most of the other programs would fall to Stockfish in the same position. Stockfish just seems to out search other programs in some endgame positions.