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Up Topic The Rybka Lounge / Computer Chess / TCEC Season 20
- By MrKris (***) Date 2020-12-26 06:22
Upcomming Division P polls:

https://strawpoll.com/u421v6q9u
Which two will advance to the Superfinal? (Select two)
by a guest · about 20 hours ago ·
The results after 94 people voted
Stockfish 47.34% (89 votes)
LCZero 38.30% (72 votes)
Dragon (Komodo) 9.57% (18 votes)
AllieStein 1.06% (2 votes)
Scorpio 1.06% (2 votes)
Ethereal 1.06% (2 votes)
Rofchade 1.06% (2 votes)
Stoofvlees 0.53% (1 votes)

https://strawpoll.com/usy1bx8je
Which two will be relegated to L1? (Select two)
by a guest · about 20 hours ago ·
The results after 69 people voted
Rofchade 42.03% (58 votes)
Ethereal 21.01% (29 votes)
Scorpio 20.29% (28 votes)
AllieStein 5.80% (8 votes)
Stockfish 4.35% (6 votes)
LCZero 3.62% (5 votes)
Stoofvlees 1.45% (2 votes)
Dragon (Komodo) 1.45% (2 votes)

https://tcec-chess.com/
S20 - DivP vs Stockfish11 CCRL Testing 1 -- gauntlet, in progress

Stockfish_11_CCRL 64-bit_4CPU (4 threads) 1/2-1/2 KomodoDragon 2647.00 (176 threads)
{no book -TCEC error? others were a book rev.-} 1. d4 d5 2. c4 e6 3. cxd5 exd5 4. Nc3 c6 5. Bf4 Nf6 6. e3 Bf5 7. f3 Nh5 8. Bxb8 Rxb8 9. g4 Qh4+ 10. Kd2 Ng3 11. gxf5 Nxh1 12. Nh3 Bb4 13. Qe1 Qh6 14. Bg2 O-O 15. a3 Bd6 16. Qxh1 {Stockfish has 3 minors vs. R} Rfe8 17. f4 b5 18. Qf1 b4 19. axb4 Bxb4 20. Nf2 c5 21. Nd3 cxd4 22. exd4 Qb6 23. Qg1 a5 24. Rc1 Qf6 25. Kc2 a4 26. Bxd5 Bxc3 27. bxc3 Qxf5 28. Qg2 Re3 29. Bc4 g6 30. Kd2 Rh3 31. Rf1 Rc8 32. Nc5 a3 33. Rf3 Rh4 34. Ba2 Rxf4 35. Rxf4 Qxf4+ 36. Kc2 Kg7 37. Qe2 Qf5+ 38. Nd3 Rb8 39. Bb3 Ra8 40. Kb1 a2+ 41. Bxa2 Qb5+ 42. Ka1 Ra3 43. Nc1 Qa5 44. c4 Rc3 45. Qd2 Qa3 46. Kb1 Qb4+ 47. Qb2 Rxc1+ 48. Kxc1 Qe1+ 49. Kc2 Qe4+ 50. Kc3 Qf3+ 51. Kc2 Qe4+ 52. Kd1 Qh1+ 53. Kc2 {1/2-1/2}

KomodoDragon 2647.00 (176 threads) 1/2-1/2 Stockfish_11_CCRL 64-bit_4CPU (4 threads)
1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 4. Bb5 Nge7 {Book.} 5. d4 cxd4 6. Nxd4 a6 7. Be2 d5 8. exd5 Nxd5 9. Nxc6 bxc6 10. O-O Be7 11. Bf3 O-O 12. Na4 e5 13. c4 Nb4 14. Qe2 Qa5 15. Nc3 Bf5 16. Ne4 Rad8 17. a3 Nd3 18. Be3 Be6 19. Rfd1 Nf4 20. Qc2 f5 21. Nc3 e4 22. Bxf4 exf3 23. Re1 Bd6 24. Qd2 Bc7 25. Qe3 Bxc4 26. Qxf3 Bxf4 27. Qxf4 Qc5 28. Rad1 Bf7 29. h4 Rxd1 30. Nxd1 Qc2 31. b4 h6 32. Qd4 Qb3 33. Re3 Qd5 34. Qxd5 cxd5 35. Rd3 Rd8 36. f4 g5 37. Ne3 Kh7 38. hxg5 hxg5 39. Nxf5 Kg6 40. Nd4 gxf4 41. Rf3 Rc8 42. Rxf4 Rc3 43. Rf3 Rc4 44. Ne2 Rc2 45. Rf2 Rc4 46. Kf1 Kg7 47. Ke1 {1/2-1/2}
- By MrKris (***) Date 2020-12-26 07:14
https://tcec-chess.com/
S20 - DivP vs Stockfish11 CCRL Testing 1 -- gauntlet, in progress

Stockfish_11_CCRL 64-bit_4CPU (4 threads) 1/2-1/2 Ethereal TCEC S20 DivP (PEXT) (176 threads)
1. Nf3 Nf6 2. g3 b5 3. e3 c6 4. c4 a6 {Book} 5. b3 d5 6. Bb2 Bf5 7. Nh4 Bg4 8. Qc2 e6 9. h3 Bh5 10. d3 a5 11. g4 Bg6 12. Bg2 a4 13. O-O a3 14. Bd4 Be7 15. Nd2 O-O 16. Bc3 Na6 17. Nxg6 hxg6 18. Nf3 Nd7 19. d4 dxc4 20. bxc4 b4 21. Bd2 c5 22. Rab1 Rb8 23. g5 Rc8 24. Rfd1 Qc7 25. Rdc1 Bd6 26. h4 Rb8 27. Be1 Rfc8 28. Qe4 Nf8 29. Qd3 Re8 30. Qe2 Red8 31. Rc2 Qb6 32. Rcc1 Qa7 33. Rc2 Rd7 34. Rcc1 Rdd8 35. Rb3 Qd7 36. Kf1 Qa4 37. Rcb1 Bc7 38. Kg1 Rbc8 39. Rc1 Bd6 40. Rd1 Bc7 41. Bf1 Ra8 42. Bg2 Rac8 43. Bh3 Rd7 44. d5 Nb8 45. e4 Qa6 46. Qe3 Nc6 47. Rbb1 Na5 48. Rbc1 Rb8 49. Bf1 Qa8 50. Rb1 Rc8 51. Kg2 Bb8 52. Kg1 Rdd8 53. Rbc1 Qb7 54. Bh3 Qa6 55. Rc2 Bc7 56. Rcc1 Bb8 57. Bg2 Bc7 58. Bf1 Qb7 59. Bh3 Qa6 60. Kg2 Bb8 61. Rc2 Rc7 62. Kg1 Ra7 63. Bf1 Qc8 64. Bh3 Qb7 65. Qxc5 {pawn sacrifice accepted} b3 66. Re2 Nxc4 {N for pawn sacrifice = N down} 67. Qxc4 b2 68. Qd3 exd5 69. Bc3 {pawn sacrifice} d4 70. Rb1 dxc3 {exchange sac. = R for pawn down} 71. Qxd8 Qc6 72. Qd3 Ne6 {B sacrifice = R+B for pawn down} 73. Bxe6 Qxe6 74. Qd8+ Kh7 75. Qxb8 Ra8 {R sacrifice = R+R+B for pawn down} 76. Qxa8 Qg4+ 77. Kh2 Qf4+ 78. Kg1 Qg4+ 79. Kh2 Qf4+ 80. Kg1 Qg4+ {1/2-1/2}

Ethereal TCEC S20 DivP (PEXT) (176 threads) 1/2-1/2 Stockfish_11_CCRL 64-bit_4CPU (4 threads)
1. Nf3 Nf6 2. g3 b5 3. e3 c6 4. c4 a6 {Book.} 5. b3 d5 6. Bb2 Bg4 7. h3 Bxf3 8. Qxf3 e6 9. Bg2 Nbd7 10. Qe2 Rb8 11. Bc3 Bd6 12. O-O O-O 13. d4 Ne4 14. Be1 Ndf6 15. Nd2 a5 16. Qd3 Nxd2 17. Bxd2 Ba3 18. c5 Ra8 19. Rad1 Re8 20. f4 Bb4 21. Bc1 a4 22. a3 Ba5 23. b4 Bc7 24. g4 g6 25. Bf3 Kg7 26. h4 h5 27. g5 Ng8 28. e4 Ne7 29. Qc3 Qd7 30. e5
[FEN "r3r3/2bqnpk1/2p1p1p1/1pPpP1Pp/pP1P1P1P/P1Q2B2/8/2BR1RK1 b - - 0 30"]

30...Nf5 {TCEC -0.67} 31. Qe1 {TCEC 1.04 ---both sides think the full board, all pawns, blockade is a big advantage for them---} Bd8 32. Kh2 Be7 33. Be3 Bf8 34. Bf2 Kh7 35. Kh1 Qc7 36. Qc3 Rad8 37. Be2 Bg7 38. Bf3 Qb7 39. Rg1 Re7 40. Rc1 Kg8 41. Rgf1 Ra8 42. Be2 Qd7 43. Rg1 Rae8 44. Qf3 Ra8 45. Rgf1 Ree8 46. Qh3 Red8 47. Bd3 Kh7 48. Rfe1 Qe8 49. Be2 Kg8 50. Qf3 Kh7 51. Qh3 Qg8 52. Bd3 Rac8 53. Rf1 Rd7 54. Rfe1 Bf8 55. Rb1 Kg7 56. Qf3 Re7 57. Kh2 Kh7 58. Bf1 Ra7 59. Bd3 Re8 60. Rbc1 Kg7 61. Qh3 Be7 62. Qf3 Qh8 63. Qe2 Rc7 64. Qf3 Kh7 65. Kg2 {TCEC 0.36, smaller advantage} Rg8 {TCEC -1.11, larger advantage} 66. Bxf5 exf5 67. Rc3 Bd8 68. Kg1 Re8 69. Bg3 Rce7 70. Kh2 Bc7 71. Qe3 Kg7 72. Rf1 Re6 73. Qf3 Rb8 74. Kg1 Qc8 75. Kh2 Qd7 76. Bf2 Ree8 77. Qh3 Rbc8 78. Re1 Rcd8 79. Rf1 Qe6 80. Rg1 Rc8 81. Rb1 Red8 82. Re1 Qd7 83. Qe3 Re8 84. Rf1 Kh7 85. Re1 Ra8 86. Qf3 Qe6 87. Qe2 Rab8 88. Rf1 Kg7 89. Rcc1 Rbc8 90. Qf3 Ra8 91. Ra1 Rh8 92. Rac1 Rae8 93. Ra1 Qc8 94. Qd1 Rd8 95. Qc2 Rde8 96. Be3 Qe6 97. Qc3 Qc8 98. Bf2 Bd8 99. Be3 Be7 100. Rf2 Rhg8 101. Rc1 Bf8 102. Ra1 Kh7 103. Rff1 Bg7 104. Rac1 Qd7 105. Qd3 Re6 106. Kg2 Rge8 107. Kf2 Qc8 108. Kg2 Rf8 109. Kf2 {1/2-1/2}
Up Topic The Rybka Lounge / Computer Chess / TCEC Season 20

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