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Up Topic The Rybka Lounge / Test Positions / Investigation of some TCEC9 Season Critical Pos. (cont. 2)
- - By Lazy Frank (***) [gb] Date 2016-11-16 06:28 Edited 2016-11-16 13:22

[Event "TCEC Season 9 - Superfinal"]
[Site "tcec.chessdom.com"]
[Date "2016.11.15"]
[Round "18"]
[White "Houdini 5"]
[Black "Stockfish 8"]
[Result "1-0"]
[ECO "B78"]
[Opening "Sicilian"]
[Variation "Dragon, Yugoslav, Main Line, 12.h4 Nc4: 14.g4"]
[PlyCount "99"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8.
Qd2 Nc6 9. Bc4 Bd7 10. O-O-O Rc8 11. Bb3 Ne5 12. h4 Nc4 13. Bxc4 Rxc4 14.
h5 Nxh5 15. g4 Nf6 16. Kb1 Re8 17. b3 Rc7 18. a4 a6 19. g5 Nh5 20. Nd5 Rc8
21. Ne2 Be6 22. Nb6 Rc7 23. a5 d5 24. Nxd5 Rd7 25. c4 Be5 26. f4 Bc7 27.
Qd3 Bg4 28. Rdg1 e6 29. Rxg4 exd5 30. cxd5 Qe7 31. f5 Be5 32. Bd4 Bxd4 33.
Qxd4 Qa3 34. Qc3 Qd6 35. fxg6 hxg6 36. Rgh4 Rc7 37. Qd4 Qc5 38. Qxc5 Rxc5
39. Kb2 Rxa5 40. Rc1 Rb5 41. Nd4 Rb4 42. Nf3 Ng7 43. Rc4 Rb6 44. Nh2 f5 45.
gxf6 Nh5 46. Ng4 Nxf6 47. Rb4 Rd6 48. e5 Nxg4 49. exd6 Nf6 50. Rxb7 1-0


2rqr1k1/1p2ppbp/pN1pb1p1/6Pn/P3P3/1P2BP2/2PQN3/1K1R3R b - - 6 22


Rc6 a5 Qc7

4r1k1/1pq1ppbp/pNrpb1p1/P5Pn/4P3/1P2BP2/2PQN3/1K1R3R w - - 1 24
Parent - By user923005 (****) [us] Date 2016-11-23 19:25
2r2rk1/1b2bp1p/2q1p1pP/pp1pP3/3BnP2/P1P5/NPB2QP1/1KR1R3 w - - acd 41; acs 2997; bm Qe3; ce -12; pm Qe3; pv Qe3;

2r2rk1/1b2bp1p/2q1p1pP/ppnpP3/3B1P2/P1P5/NPB2QP1/1KR1R3 b - - acd 40; acs 2997; bm Ne4; ce 17; pm Ne4;
pv Ne4 Qe2;
2rqr1k1/1p2ppbp/pN1pb1p1/6Pn/P3P3/1P2BP2/2PQN3/1K1R3R b - - acd 41; acs 2998; bm Rc6; ce -75; pm Rc6;
pv Rc6 a5 Qc7 c4 Rf8 Rdg1 Rc5 Bd4 Bxd4 Nxd4 Bd7 b4 Re5 Nd5 Qc8 Kb2 Bc6 Nb6 Qe8 Nf5 Kh8 Rh2 Qd8 Qd4 f6 Ne3 Rg8 gxf6 exf6 Rd1 Qf8 Qxd6 Rg5 Qxf8 Rxf8 Nbd5 Rg3 Rf2 Rd8 c5 Ba4 Ra1 Bc6 f4 Re8;
3rb1k1/1n2q1pp/2p1Pp2/pp3P2/6P1/1P3B2/Q1NbPB1P/6RK b - - acd 38; acs 2996; bm Bc3; ce -85; pm Bc3;
pv Bc3 Kg2;
3rb1k1/1n2q2p/2p1Ppp1/1p2bP2/6PP/1Q1N1B2/4PBK1/6R1 b - - acd 41; acs 2998; bm Bd4; ce -183; pm Bd4;
pv Bd4 Qb4 Kf8 Qxe7+ Kxe7 h5 Bxf2 Kxf2 Rb8 fxg6 hxg6 h6 Kxe6 h7 Bd7 Ra1 Rh8 Nf4+ Kd6 Rd1+ Kc7 Rxd7+ Kxd7 Nxg6 Re8 h8=Q Rxh8 Nxh8 Na5 Ng6 Kd6 Ke3 Nc4+ Kd3 c5 Nf4 Ke5 Nd5 Nd6 Kc3 Nf7 Nc7 b4+ Kc4 f5 gxf5 Nd6+ Kxc5 b3 Nd5 b2 Nc3 Nxf5 Kc4 Kf4 Kd3 Kg5 Ne4+ Kf4 Nd2 Ne3 Kc3;
4r1k1/1pq1ppbp/pNrpb1p1/P5Pn/4P3/1P2BP2/2PQN3/1K1R3R w - - acd 45; acs 2998; bm Bd4; ce 117; pm Bd4;
pv Bd4 Bxd4 Nxd4 Rxb6 axb6 Qxb6 Nxe6 fxe6 e5 Rd8 exd6 Rxd6 Qc3 Rc6 Qe5 Qc7 Qxc7 Rxc7 Rd8+ Kf7 Rb8 b5 Rh8 Kg7 Ra8 Rc5 Ra7 Kf7 Rd1 Ng3 Rdd7 Nf5 Kb2 Rc6 Rd1 e5 Re1 Re6 c3 Nh4 Rf1 Nf5 b4 Kg7 Rg1 e4 fxe4 Nd6 Kc2 Nxe4 Kd3 Re5 Re1 Nf2+ Kd2 Rd5+ Kc2;
r5k1/p1b4p/2ppqrp1/n3p3/4P3/P3NN1P/2P1QPP1/1R1R2K1 w - - acd 42; acs 2996; bm Nd2; ce 15; pm Nd2;
pv Nd2 Rff8;
r5k1/p6p/1bppqrp1/n1P1p3/4P3/P3NN1P/4QPP1/1R1R2K1 b - - acd 44; acs 2993; bm Bxc5; ce -59; pm Bxc5; pv Bxc5;

rn1q1rk1/pp1n1ppp/2p5/4P2b/PbN5/2N2PP1/1P2P2P/R1BQKB1R w KQ - acd 41; acs 2999; bm Bh3; cce 165; ce 62;
pm Bh3 {41} Qd4 {7} Bf4 {3} h4 {3} Bg2 {2} Be3 {1} Qb3 {1} f4 {1}; pv Bh3 Qe7 Qd4 Rd8 Qh4 Qxh4 gxh4 f6 Rg1 Nxe5 Nxe5 fxe5 Bh6 Bg6 h5 gxh6 hxg6 Na6 Be6+ Kg7 gxh7+ Kxh7 Bf5+ Kh8 Rg6 Rd6 Rxd6 Bxd6 O-O-O Bb4 Ne4 Rf8 Bg4 Nc5 Nxc5 Bxc5 Rd7 Rf4 e4 h5 Bxh5 Rh4 Bg4 Be3+ Kb1 Rh7 a5 Rxd7 Bxd7 Bf4 h4 Bg3 h5 Kg7 Kc2 Bf2 a6 bxa6; white_wins 20; black_wins 7; draws 8;
- By Lazy Frank (***) [gb] Date 2016-11-17 07:06
KGA simulation


[White "Stockfish 8"]
[Black "Komodo 10"]
[ECO "C34"]
[Opening "KGA"]
[Variation "Fischer, 4.Bc4"]
[PlyCount "13"]

1. e4 {B} e5 {B} 2. f4 {B} exf4 {B} 3. Bc4 {B} Qh4+ {B} 4. Kf1 {B} d6 5. Nc3 {B} Be6 6. Nd5 Qd8 7. Nf3
- By Lazy Frank (***) [gb] Date 2016-11-21 12:45 Edited 2016-11-21 14:54
[Event "Replay"]
[Site "Raivis"]
[White "Stockfish 8"]
[Black "Komodo 10"]
[ECO "D16"]
[Opening "Slav"]
[Variation "Bronstein, 6.Ne5 Bh5 7.f3 Nfd7 8.Nxc4 e5 9.Ne4"]
[PlyCount "67"]

1. d4 {B} d5 {B}
2. c4 {B} c6 {B}
3. Nf3 {B} Nf6  {B}
4. Nc3 {B} dxc4 {B}
5. a4 {B} Bg4 {B}
6. Ne5 {B} Bh5 {B}
7. f3 {B} Nfd7 {B}
8. Nxc4 {B} e5 {B}
9. g3 {B} Bb4 {B}
10. dxe5 {B} O-O {B}

rn1q1rk1/pp1n1ppp/2p5/4P2b/PbN5/2N2PP1/1P2P2P/R1BQKB1R w KQ - 1 11


11. Bh3 {B} Qe7 {B}
12. f4 {B} f6 {(f6 e6) -0.33/38 1}
13. e6 {B} Rd8 {(Rd8 Qc2) -0.39/40 1}
14. Qc2 {B} Nc5 {(Nc5 f5) -0.43/40 1}
15. f5 {B} Rd4 {(Rd4 Nd2) -0.42/38 1}
16. Ne3 {B} Nba6 {(Nba6 0-0) -0.42/40 1}
17. O-O {B} Ba5 {(Ba5 Na2) -0.47/40 1}
18. Na2 {B} Rxa4 {(Rxa4 b3) -0.47/41 1}
19. b3 {B} Nb4 {(Nb4 Qb2) -0.45/40 1}
20. Qb1 {B} Rxa2 {(Rxa2 Rxa2) -0.50/39 1}
21. Rxa2 {(Rxa2 Nxa2) +0.68/50 1} Nxa2 {(Nxa2 Qxa2) -0.49/38 1}
22. Qxa2 {(Qxa2 Bb4) +0.69/45 1} Bb4 {(Bb4 Bg2) -0.44/41 1}
23. Bg2 {(Bg2 Rd8) +0.69/45 1} Rd8 {(Rd8 g4) -0.50/39 1}
24. g4 {(g4 Be8) +0.73/49 1} Be8 {(Be8 Nc2) -0.59/39 1}
25. Nc2 {(Nc2 Bd2) +0.76/46 1} Bd2 {(Bd2 Ba3) -0.53/39 1}
26. Ba3 {(Ba3 b5) +0.78/49 1} b5 {(b5 Kh1) -0.46/40 1}
27. Kh1 {(Kh1 Bc3) +0.78/46 1} Bc3 {(Bc3 Bf3) -0.50/39 1}
28. Bf3 {(Bf3 Rd2) +0.78/49 1} Rd2 {(Rd2 Bc1) -0.62/38 1}
29. Bc1 {(Bc1 Rd8) +0.72/47 1} Rd8 {(Rd8 Rg1) -0.53/37 1}
30. Be3 {(Be3 a5) +0.66/46 1} a5 {(a5 Rc1) -0.52/37 1}
31. Rc1 {(Rc1 Nb7) +0.69/49 1} Nb7 {(Nb7 Ne1) -0.51/39 1}
32. Bf2 {(Bf2 Be5) +0.80/41 1} Bd2 {(Bd2 Rf1) -0.57/36 1}
33. Rg1 {(Rg1 Bf4) +0.87/44 1} ...

3rb1k1/1n2q1pp/2p1Pp2/pp3P2/6P1/1P3B2/Q1NbPB1P/6RK b - - 5 33


Komodo deviate at move 33 with ... Bc3 from TCEC game (24). TCEC SF played Bf4.

33. ... Bc3 {(Bc3 Kg2) -0.52/35 1}
34. Kg2 {(Kg2 Kf8) +0.79/44 1} g6 {(g6 h4) -0.67/36 1}
35. h4 {(h4 Nd6) +1.13/38 1} Be5 {(Be5 fxg6) -0.74/36 1}
36. Ne1 {(Ne1 a4) +1.56/40 1} a4 {(a4 Nd3) -1.01/38 1}
37. Nd3 {(Nd3 axb3) +1.54/40 1} axb3 {(axb3 Qxb3) -0.98/41 1}
38. Qxb3 {(Qxb3 Bd4) +1.71/42 1}

3rb1k1/1n2q2p/2p1Ppp1/1p2bP2/6PP/1Q1N1B2/4PBK1/6R1 b - - 0 38
- By Lazy Frank (***) [gb] Date 2016-11-21 17:30 Edited 2016-11-21 17:37

[Event "TCEC Season 9 - Superfinal"]
[Site "tcec.chessdom.com"]
[Date "2016.11.20"]
[Round "38"]
[White "Houdini 5"]
[Black "Stockfish 8"]
[ECO "C63"]
[Opening "Spanish"]
[Variation "Schliemann, 4.d3 fxe4 5.dxe4 Nf6 6.O-O"]
[PlyCount "58"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d3 fxe4 5. dxe4 Nf6 6. O-O d6 7. a3 Bg4 8.
Qd3 Nd7 9. Bc4 Nc5 10. Qe3 Qd7 11. b4 Ne6 12. Nc3 Be7 13. Qd3 Bd8 14. b5
Na5 15. Ba2 Rf8 16. Ne1 c6 17. h3 Bh5 18. Rb1 Nf4 19. Bxf4 Rxf4 20. Ne2 Rf6
21. bxc6 bxc6 22. Ng3 Bg6 23. Qa6 Bf7 24. Bxf7+ Kxf7 25. Nf5 g6 26. Ne3 Kg8
27. Nf3 Bc7 28. Rfd1 Qc8 29. Qe2 h5


After 21:11 thinking time SF played h5 with fail-low to 0.40. What exactly SF saw and nobody else and why refute Qe6?

r5k1/p1b4p/2ppqrp1/n3p3/4P3/P3NN1P/2P1QPP1/1R1R2K1 w - - 8 30


c4 Bb6 c5

r5k1/p6p/1bppqrp1/n1P1p3/4P3/P3NN1P/4QPP1/1R1R2K1 b - - 0 31
- By Lazy Frank (***) [gb] Date 2016-11-22 08:08 Edited 2016-11-22 09:28

[Event "TCEC Season 9 - Superfinal"]
[Site "tcec.chessdom.com"]
[Date "2016.11.21"]
[Round "42"]
[White "Houdini 5"]
[Black "Stockfish 8"]
[ECO "C11"]
[Opening "French"]
[Variation "Steinitz, Boleslavsky, 7...a6 8.Qd2 b5"]
[PlyCount "49"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 cxd4 8.
Nxd4 Bc5 9. Qd2 O-O 10. O-O-O a6 11. Nb3 Bb4 12. Kb1 b5 13. h4 Bb7 14. h5
Rc8 15. h6 g6 16. a3 Be7 17. Na2 Nb6 18. Qf2 Na4 19. Nd4 Qc7 20. Bd3 Qd7
21. Rhe1 Nxd4 22. Bxd4 a5 23. c3 Nc5 24. Bc2 Qc6 25. Rc1


2r2rk1/1b2bp1p/2q1p1pP/ppnpP3/3B1P2/P1P5/NPB2QP1/1KR1R3 b - - 4 25


Ne4, seems Stockfish overlooked moves ordering.

2r2rk1/1b2bp1p/2q1p1pP/pp1pP3/3BnP2/P1P5/NPB2QP1/1KR1R3 w - - 5 26
- - By Lazy Frank (***) [gb] Date 2016-11-23 12:06 Edited 2016-11-24 03:15
Superfinal, game 49


[ECO "B80"]
[Opening "Sicilian"]
[Variation "Scheveningen, English, 7...b5 8.Qd2 Bb7"]
[PlyCount "62"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 Be7 8.
Qd2 Nc6 9. O-O-O O-O 10. g4 Nxd4 11. Qxd4 Nd7 12. Kb1 b5 13. g5 Bb7 14. h4
Re8 15. a3 Rc8 16. Qd2 Ne5 17. Rh3 Nc4 18. Bxc4 Rxc4 19. h5 d5 20. exd5
exd5 21. Nxd5 Bxd5 22. Qxd5 Kf8 23. Qxd8 Rxd8 24. Rxd8+ Bxd8 25. c3 Ke7 26.
Kc2 Ke6 27. b3 Rc6 28. h6 g6 29. Rh4 f6 30. Re4+ Kf7 31. f4 Re6


3b4/5k1p/p3rppP/1p4P1/4RP2/PPP1B3/2K5/8 w - - 1 32


Houdini suggested Kd3, i think he was right - Kd3 kills the black using zugzwang technique.

32. Kd3

3b4/5k1p/p3rppP/1p4P1/4RP2/PPPKB3/8/8 b - - 2 32
Parent - By Lazy Frank (***) [gb] Date 2016-11-24 04:28
Oh, no ...

Looks like 32. ... Rxe4 33. Kxe4 Ke6 saves the black.
- By Lazy Frank (***) [gb] Date 2016-11-27 15:00 Edited 2016-11-27 16:34
Superfinal, game 21, Kings Gambit Accepted.

Replay: http://tcec.chessdom.com/archive.php?se=9&sf&ga=21

Some technical parameters of game 21 to illustrate the quality of the TCEC games.

Ponder

White (Stockfish) ponder success = 47/78 = 60,256 %
Black (Houdini) ponder success = 51/71 = 71,831 %

Mobility

White (Stockfish) = 37,595
Black (Houdini) = 32,615

Nodes

Total - white (Stockfish) - 589,8583 GigaNodes (base 1024), average per move 6,8588 Gn.
Total - black (Houdini) - 796,5756 GigaNodes (base 1024), average per move 9,1561 Gn.

Time

Total time - white (Stockfish) - 3 hours 15 minutes 36 seconds, average per move 2 minutes 16,5 seconds.
Total time - black (Houdini) -  3 hours 21 minutes 34 seconds, average per move 2 minutes 19 seconds.

Total time of game - 6:37:10

Time management graph
- - By Lazy Frank (***) [gb] Date 2016-11-28 02:08 Edited 2016-11-28 14:58

[Event "TCEC Season 9 - Superfinal"]
[Site "tcec.chessdom.com"]
[Date "2016.11.27"]
[Round "67"]
[White "Stockfish 8"]
[Black "Houdini 5"]
[ECO "B09"]
[Opening "Pirc"]
[Variation "Austrian, 5...O-O 6.Bd3 Na6 7.O-O c5 8.d5 Bg4"]
[TimeControl "10800+15"]
[PlyCount "44"]

1. e4 {B} d6 {B} 2. d4 {B} Nf6 {B} 3. Nc3 {B} g6 {B} 4. f4 {B} Bg7 {B} 5.
Nf3 {B} O-O {B} 6. Bd3 {B} Na6 {B} 7. O-O {B} c5 {B} 8. d5 {B} Rb8 9. Qe2
Bg4 10. Kh1 Kh8 11. a3 Rc8 12. Be3 Nc7 13. Qe1 b5 14. Qh4 Qd7 15. f5 c4 16.
Ng5 cxd3 17. fxg6 Bh5 18. Rxf6 fxg6 19. Rxf8+ Rxf8 20. cxd3 h6 21. Nh3 Kh7
22. Nf4 Bf6


5r2/p1nqp2k/3p1bpp/1p1P3b/4PN1Q/P1NPB3/1P4PP/R6K w - - 4 23



[Event "TCEC Season 9 - Superfinal - Replay"]
[Site "Lazy Frankenstein"]
[White "Stockfish 8+"]
[Black "Komodo 10"]
[Result "1-0"]
[Variation "Austrian, 5...O-O 6.Bd3 Na6 7.O-O c5 8.d5 Bg4"]
[SetUp "1"]
[FEN "5r2/p1nqp2k/3p1bpp/1p1P3b/4PN1Q/P1NPB3/1P4PP/R6K w - - 0 23"]
[PlyCount "13"]

23. Qe1 Bg4 24. Rc1 a5 25. d4 g5 26. Nd3 Bh5 27. Ne2 a4 28. Kg1 Bg6 29. Nf2
Parent - By user923005 (****) [us] Date 2016-11-29 04:16
3b4/5k1p/p3rppP/1p4P1/4RP2/PPP1B3/2K5/8 w - - acd 56; acs 1800; bm Kd3; ce 71; pm Kd3;
pv Kd3 Rxe4 Kxe4 Ke6 c4 bxc4 bxc4 Be7 a4 f5+ Kd4 Bb4 Kd3 Kd6 Kc2 Kc6 Kb3 Bd6 Bd2 Bc5 Kc3 Bf2 Bc1 Kc5 Ba3+ Kc6 Kd3 Bb6 Bb4 Bc7 Bd2 Kd6 Be3 Kc6 Kc2 Kd6 Kc3 Kc6 Kb4 Kd6 Bc1 Kc6 Kb3 Bb6 Kc3 Bc5 Kd3 Kd6 Bb2 Kc6 Kd2 Bd6 Be5 Bb4+ Ke3 Kc5 Kd3 Kc6 Bc3 Bd6 Ke3 Bc7 Bd4 Ba5 Kf3; white_wins 0; black_wins 0; draws 0;

3b4/5k1p/p3rppP/1p4P1/4RP2/PPPKB3/8/8 b - - acd 54; acs 1800; bm Rxe4; ce -71; pm Rxe4;
pv Rxe4 Kxe4 Ke6 c4 bxc4 bxc4 Be7 a4 f5+ Kd4 Bb4 Kd3 Kd6 Kc2 Kc6 Kb3 Bd6 Bd2 Bc5 Kc3 Bf2 Bc1 Kc5 Ba3+ Kc6 Kd3 Bb6 Bb4 Bc7 Bd2 Kd6 Be3 Kc6 Kc2 Bd6 Bd2 Bc7 Kb3 Bd6 Bc1 Bc5 Kc3 Kd6 Kc2 Ke6 Kb3 Bd6 Be3 Be7 Kc2 Bb4 Bd2 Bd6 Kb3 Bc5 a5 Bd6 Be3 Kd7 Kc3 Bc7; white_wins 0; black_wins 0; draws 0;

5r2/p1nqp2k/3p1bpp/1p1P3b/4PN1Q/P1NPB3/1P4PP/R6K w - - acd 38; acs 1746; bm Qe1; ce 94; pm Qe1;
pv Qe1 Bg4 Rc1 a5 d4 g5 Nd3 Bh5 Nd1 a4 Qa5 Bg7 N3f2 Ne8 Kg1 Bxd1 Rxd1 Nf6 Rc1 Rc8 Qd2 Rxc1+ Qxc1 e6 Qc2 Kg8 dxe6 Qxe6 Kf1 Nd5 Ke2 Nf4+ Kf3 Qf6 Qc8+ Qf8 Qxf8+ Kxf8 Nd1 Ne6 d5 Nd4+ Bxd4 Bxd4 Nc3 Bxc3 bxc3 Kf7 Ke3 Kf6; white_wins 0; black_wins 0; draws 0;
- - By Lazy Frank (***) [gb] Date 2016-11-29 18:40 Edited 2016-11-29 20:01

[Event "TCEC Season 9 - Superfinal"]
[Site "tcec.chessdom.com"]
[Date "2016.11.28"]
[Round "72"]
[White "Houdini 5"]
[Black "Stockfish 8"]
[ECO "C14"]
[Opening "French"]
[Variation "Classical, Steinitz, 9.Qd2 Nc6 10.dxc5 Qxc5"]
[PlyCount "173"]

1. e4 {B} e6 {B} 2. d4 {B} d5 {B} 3. Nc3 {B} Nf6 {B} 4. Bg5 {B} Be7 {B} 5.
e5 {B} Nfd7 {B} 6. Bxe7 {B} Qxe7 {B} 7. f4 {B} O-O {B} 8. Nf3 {B} c5 {B} 9.
Qd2 {B} Nc6 {B} 10. dxc5 {B} Qxc5 {B} 11. O-O-O {B} Nb6 {B} 12. h4 Bd7 13.
h5 Rac8 14. h6 g6 15. Kb1 Na5 16. Qd4 Qxd4 17. Nxd4 Nbc4 18. Re1 a6 19. Bd3
Nb6 20. g3 Rc7 21. Nf3 Rfc8 22. Rh2 Nc6 23. a3 Be8 24. g4 Bd7 25. Rf2 Rf8
26. Rg2 Ne7 27. Ka2 Nc6 28. Rg3 Rfc8 29. Ng5 Rf8 30. Kb1 Bc8 31. Bf1 Bd7
32. Ne2 Nc4 33. Ka2 Rfc8 34. Rd1 b5 35. b3 N4a5 36. Kb2 Nb7 37. Rc3 Be8 38.
Nd4 Nbd8 39. Ngf3 Ra8 40. Nxc6 Nxc6 41. g5 Rb7 42. Nh2 Kh8 43. Ng4 Nd8 44.
Nf6 Bc6 45. b4 Rb6 46. Bd3 Nb7 47. Be2 Nd8 48. Rd4 Nb7 49. Rb3 Nd8 50. Rd1
Rc8 51. Rd2 Rbb8 52. Rf3 Ra8 53. Rd4 Rab8 54. Rdd3 Nb7 55. Rd1 Nd8 56. Rd4
Rb6 57. Bf1 Rbb8 58. Rd2 Rc7 59. Rdd3 Ra8 60. Rg3 Rb8 61. Rh3 Ra8 62. Rdg3
Rca7 63. Rc3 Rc8 64. Rcd3 Rb8 65. Rd1 Rc8 66. Be2 Rb8 67. Rf3 Raa8 68. Rd4
Ra7 69. Rc3 Rc8 70. Rd1 Rb7 71. Rc5 Rb6 72. Bf1 Rbb8 73. Kc1 Nb7 74. Rc3
Nd8 75. a4 Ra8 76. axb5 axb5 77. Be2 Ra4 78. Rb3 Rca8 79. c3 Ra1+ 80. Rb1
R1a3 81. Kd2 Ra2+ 82. Ke3 R8a7 83. Rd2 R2a3 84. Kd4 Nb7 85. Bd3 Ra8 86. Rh2
Nd8 87. Rf2


Why Be8 that loses instantly to Nxe8?
Simply mysterious, there is logical 8 rook moves and Nb7 with possibility save the game playing flexible fortress.
Parent - - By Lazy Frank (***) [gb] Date 2016-11-30 10:23
MoKy analyse:

[+2.54]  d=46  87...Be8 88.Ke3 Bc6 89.Rfb2 R3a4 90.Re1 R4a6 91.Rf1 Ra4 92.Rc1 Ra3 93.Kd2 R8a7 94.Ke2 Rc7 95.Ke3 Rb7 96.Rg2 Rba7 97.Kd4 R3a6 98.Rh2 Re7 99.Rf2 Ra4 100.Rb1 Rc7 101.Rff1 Rca7 102.Rb2 Ra8 103.Re1 R4a7 104.Rg1 Re7 105.Rgb1 Rb7 106.Rd2 Rba7 107.Rc1 Ra3 108.Rb2 Nb7 109.Rg1 R8a7 110.Rd1 Ra8 111.Ke3 Nd8 112.Kd2 R8a7 113.Rdb1 R3a4 114.Ke2 Ra3 115.Ke3 Rc7(0:38:15) 14145936kN
[+2.54]  d=46  87...Rc8 88.Rfb2 Rca8 89.Ke3 R3a4 90.Re1 R4a6 91.Rf1 Ra4 92.Rc1 Ra3 93.Kd2 R8a7 94.Ke2 Rc7 95.Ke3 Rb7 96.Rg2 Rba7 97.Kd4 R3a6 98.Rh2 Re7 99.Rf2 Ra4 100.Rb1 Rc7 101.Rff1 Rca7 102.Rb2 Ra8 103.Re1 R4a7 104.Rg1 Re7 105.Rgb1 Rb7 106.Rd2 Rba7 107.Rc1 Ra3 108.Rb2 Nb7 109.Rg1 R8a7 110.Rd1 Ra8 111.Ke3 Nd8 112.Kd2 R8a7 113.Rdb1 R3a4 114.Ke2 Ra3 115.Ke3 Rc7(0:39:11) 14480091kN
[+2.54]  d=46  87...R8a6 88.Rfb2 Ra8 89.Ke3 R3a4 90.Re1 R4a6 91.Rf1 Ra4 92.Rc1 Ra3 93.Kd2 R8a7 94.Ke2 Rc7 95.Ke3 Rb7 96.Rg2 Rba7 97.Kd4 R3a6 98.Rh2 Re7 99.Rf2 Ra4 100.Rb1 Rc7 101.Rff1 Rca7 102.Rb2 Ra8 103.Re1 R4a7 104.Rg1 Re7 105.Rgb1 Rb7 106.Rd2 Rba7 107.Rc1 Ra3 108.Rb2 Nb7 109.Rg1 R8a7 110.Ke3 Nd8 111.Rgb1 Rc7 112.Kd2 Rca7 113.Rc1 Ra8 114.Ke3(0:39:11) 14481286kN
[+2.54]  d=46  87...R8a7 88.Rc2 Ra8 89.Rcb2 R8a7 90.Ke3 Rc7 91.Rc1 Rb7 92.Rg2 Rba7 93.Rh2 Ra8 94.Rb2 R8a7 95.Kd4 Ra8 96.Rh2 R3a4 97.Rd2 Ra3 98.Rb2 Nb7 99.Ke3 Nd8 100.Kd2 R8a7 101.Bb1 R3a6 102.Kd1 Bb7 103.Bd3 Bc6 104.Ke2 Ra3 105.Rcb1 Ra8 106.Kd2 R3a4 107.Re1 R4a7 108.Rf1 Ra6 109.Rd1 Ra4 110.Ke3 Ra3 111.Rdb1 R3a7 112.Rf2 Ra3(0:39:15) 14503982kN
[+2.54]  d=46  87...R3a7 88.Ke3 Ra3 89.Rc1 R8a7 90.Rh2 Ra8 91.Rb2 R8a7 92.Kd4 Ra8 93.Rh2 R3a4 94.Rd2 Ra3 95.Rb2 Nb7 96.Ke3 Nd8 97.Kd2 R8a7 98.Bb1 R3a6 99.Kd1 Bb7 100.Bd3 Bc6 101.Ke2 Ra3 102.Rcb1 Ra8 103.Kd2 R3a4 104.Re1 R4a7 105.Rf1 Ra6 106.Ke3 Ra4 107.Rfb1 R4a7 108.Rh2 Ra3 109.Rc2 R8a7 110.Kd4 Ra8 111.Rcb2 R8a7 112.Ke3(0:39:21) 14541115kN
[+2.54]  d=46  87...R8a4 88.Rfb2 Ra8 89.Ke3 R3a7 90.Rc1 Ra3 91.Kd2 R8a7 92.Bb1 R3a6 93.Kd1 Bb7 94.Bd3 Bc6 95.Rcb1 Ra3 96.Kd2 R3a4 97.Bf1 Rc7 98.Ke3 Rca7 99.Kd4 Nb7 100.Re1 Ra3 101.Bd3 Nd8 102.Rc1 Ra8 103.Rh2 R3a4 104.Rd2 Ra3 105.Rb2 Nb7 106.Re2 Nd8 107.Rd2 R8a7 108.Rh2 Rc7 109.Rhc2 Rca7 110.Rb1(0:39:24) 14558627kN
[+2.54]  d=46  87...R3a4 88.Rfb2 Ra3 89.Ke3 R3a7 90.Rc1 Ra3 91.Kd2 R3a4 92.Ke2 R4a6 93.Kf2 Ra3 94.Ke3 R8a7 95.Kd4 Ra8 96.Rh2 R3a4 97.Rf2 R4a7 98.Rd2 Ra3 99.Rb2 Nb7 100.Rg1 R8a7 101.Ke3 Nd8 102.Kd2 R7a6 103.Rc1 Ra8 104.Ke1 R3a7 105.Rcb1 Ra6 106.Kf2 Ra3 107.Rc1 R3a4 108.Rd2 R8a7 109.Ke2 Ra3 110.Rb2(0:39:32) 14606549kN
[+2.54]  d=46  87...Nb7 88.Rfb2 Nd8 89.Ke3 R3a7 90.Rc1 Ra3 91.Kd2 R3a4 92.Ke2 R4a6 93.Kf2 Ra3 94.Ke3 R8a7 95.Kd4 Ra8 96.Rh2 R3a4 97.Rf2 R4a7 98.Rd2 Ra3 99.Rb2 Nb7 100.Rg1 R8a7 101.Ke3 Nd8 102.Kd2 R7a6 103.Rc1 Ra8 104.Ke1 R3a7 105.Rcb1 Ra6 106.Kf2 Ra3 107.Rc1 R3a4 108.Rd2 R8a7 109.Ke2 Ra3 110.Rb2(0:39:32) 14608192kN
[+2.54]  d=46  87...R3a6 88.Ke3 Ra3 89.Rc1 R8a7 90.Rh2 Ra8 91.Rb2 R8a7 92.Kd4 Ra8 93.Rh2 R3a4 94.Rf2 R4a7 95.Rd2 Ra3 96.Rb2 Nb7 97.Rg1 R8a7 98.Ke3 Nd8 99.Kd2 R7a6 100.Rc1 Ra8 101.Ke1 R3a7 102.Kf2 Ra4 103.Ke3 R4a7 104.Rg1 Ra3 105.Rgb1 R3a4 106.Rd1 Ra3 107.Kd2 R8a7 108.Rdb1 R3a4 109.Ke2 Ra3 110.Rc1(0:39:34) 14621347kN
[+2.54]  d=46  87...Rb8 88.Ke3 Rba8 89.Rc1 R8a7 90.Rh2 Ra8 91.Rb2 R3a7 92.Rd1 Ra3 93.Kd2 R8a7 94.Rdb1 R3a6 95.Re1 Ra8 96.Rd1 R6a7 97.Rg1 Ra4 98.Be2 Ra3 99.Rc1 R8a6 100.Bf1 Ra8 101.Rcb1 R8a6 102.Rc2 Ra7 103.Bd3 R3a4 104.Rg1 Ra8 105.Rb2 R4a7 106.Ke3 Ra3 107.Rgb1 R3a4 108.Kd4 Ra3 109.Rc1 Nb7 110.Rg1 R8a7 111.Ke3 Nd8 112.Rgb1(0:39:35) 14625019kN
Parent - By MoKy (**) [sk] Date 2016-11-30 11:32
Fail low on the previous move:

[+3.11]  d=54  86...R8a6 87.Rhb2 Nd8 88.Ke3 Ra7 89.Kd2 R3a4 90.Rc1 Ra8 91.Ke3 R8a6 92.Ke2 Ra3 93.Kd2 Ra8 94.Bb1 Bb7 95.Rcc2 Rc8 96.Ne8 Rc4 97.Ra2 Ra4 98.Nd6 Rxf4 99.Ke3 Rh4 100.Nxb5 d4 101.Nxd4 Rxa2 102.Rxa2 Rh3 103.Kd2 Rh2 104.Kc1 Rh1 105.Kb2 Kg8 106.Nb5 Rh2 107.Kb3 Rxa2 108.Bxa2 Nc6 109.Nd6 Ba8 110.Nc4 Nb8 111.Nb6 Bg2 112.b5 Kf8 113.c4 Ke7 114.c5 Nd7 115.Nxd7 Kxd7 116.Kb4 Kc7 117.Bb3 Bb7 118.Bc2 Bd5 119.Bd3 Bg2 120.Bc4 Bb7 121.Ba2(2:17:14) 51422910kN
[+3.11]  d=53  86...R8a6 87.Rhb2 Nd8 88.Ke3 Ra7 89.Kd2 R3a4 90.Rc1 Ra3 91.Bb1 Ra1 92.Rcc2 R7a3 93.Kc1 Bb7 94.Ra2 R1xa2 95.Bxa2 Ra8 96.Kd2 Ra3 97.Bb1 Rb3 98.Rc1 Rb2 99.Ke3 Bc6 100.Kd4 Nb7 101.Bc2 Ra2 102.Bd3 Ra4 103.Rc2 Ra6 104.Rb2 Nd8 105.Bb1 Ra1 106.Kc5 Ra6 107.Ra2 Nb7 108.Kd4 Ra4 109.Ke3 Nd8 110.Kd2 d4 111.Rxa4 bxa4 112.cxd4 a3 113.Kc3 Bb5 114.Kb3 Nc6 115.d5 exd5 116.Nxd5(2:09:32) 48576689kN
[+3.06]  d=52  86...R8a6 87.Rhb2 Nd8 88.Ke3 Ra7 89.Kd2 R3a4 90.Rc1 Ra3 91.Bb1 Ra1 92.Rcc2 R7a3 93.Kc1 Bb7 94.Ra2 R1xa2 95.Bxa2 Ra6 96.Kd2 Nc6 97.Bb1 Ra1 98.Rc1 Na7 99.Kc2 Ra6 100.Kb2 Bc6 101.Bd3 Rb6 102.Ra1 Rb7 103.Kb3 Rc7 104.Ra6 Nc8 105.Ra5 Na7 106.Kc2 Rb7 107.Kd2 Rc7 108.Be2 Re7 109.Ke3 Rc7 110.Kd4 Nc8 111.Bxb5 Bxb5 112.Rxb5 Rc4 113.Kd3 Rxf4 114.Rb8 Rf3 115.Kd2(2:01:00) 45434513kN
[+2.90]  d=52  86...R8a6 87.Rhb2 Nd8 88.Ke3 Ra7 89.Kd2 Rb7 90.Rc1 Rba7 91.Bb1 Ra1 92.Rcc2 Bb7 93.Kc1 R7a3 94.Ra2 R1xa2 95.Bxa2 Ra8 96.Kd2 Nc6 97.Bb1 Ra1 98.Kc1 Nb8 99.Ra2 Rxa2 100.Bxa2 d4 101.Kd2 Na6 102.Bb1 Bd5 103.Bd3 Nc7 104.Be2 Ba2 105.cxd4 Bd5 106.Ke3 Ba2 107.Bd3 Bd5 108.Be4 Bc4 109.Bb7 Ba2 110.Bc6 Bc4 111.Kd2 Na6 112.Kc3 Nc7 113.Be8 Nxe8 114.Nxe8(1:37:13) 36702232kN
[+2.75]  d=52  86...R8a6 87.Rhb2 Nd8 88.Ke3 Ra7 89.Kd2 Rb7 90.Rc1 Rba7 91.Bb1 Ra1 92.Rcc2 Bb7 93.Kc1 R7a3 94.Ra2 R1xa2 95.Bxa2 Ra8 96.Kd2 Nc6 97.Bb1 Ra1 98.Kc1 Nb8 99.Ra2 Rxa2 100.Bxa2 d4 101.Kd2 Na6 102.Bb1 Bd5 103.Bd3 Nc7 104.Be2 Ba2 105.cxd4 Bd5 106.Ke3 Ba2 107.Bd3 Bd5 108.Be4 Bc4 109.Bb7 Ba2 110.Bc6 Bc4 111.Kd2 Na6 112.Kc3 Nc7 113.Be8 Nxe8 114.Nxe8 Bf1(1:24:27) 32055383kN
[+2.67]  d=52  86...R8a6 87.Rhb2 Nd8 88.Ke3 Ra7 89.Kd2 Rb7 90.Rc1 Rba7 91.Bb1 Ra1 92.Rcc2 Bb7 93.Kc1 R7a3 94.Ra2 R1xa2 95.Bxa2 Ra8 96.Kd2 Nc6 97.Bb1 Ra1 98.Kc1 Nb8 99.Ra2 Rxa2 100.Bxa2 d4 101.Kd2 Na6 102.Bb1 Bd5 103.Bd3 Nc7 104.Be2 Ba2 105.cxd4 Bd5 106.Ke3 Ba2 107.Bd3 Bd5 108.Be4 Bc4 109.Bb7 Ba2 110.Bc6 Bc4 111.Kd2 Na6 112.Kc3 Nc7 113.Be8 Nxe8 114.Nxe8 Bf1 115.Kd2(1:12:49) 27691541kN
[+2.75]  d=52  86...R8a6 87.Rhb2 Nd8 88.Ke3 Ra7 89.Kd2 Rb7 90.Rc1 Rba7 91.Bb1 Ra1 92.Rcc2 Bb7 93.Kc1 R7a3 94.Ra2 R1xa2 95.Bxa2 Ra8 96.Kd2 Nc6 97.Bb1 Ra1 98.Kc1 Nb8 99.Ra2 Rxa2 100.Bxa2 d4 101.Kd2 Na6 102.Bb1 Bd5 103.Bd3 Nc7 104.Be2 Ba2 105.cxd4 Bd5 106.Ke3 Ba2 107.Bd3 Bd5 108.Be4 Bc4 109.Bb7 Ba2 110.Bc6 Bc4 111.Kd2 Na6 112.Kc3 Nc7 113.Be8 Nxe8 114.Nxe8 Bf1 115.Kd2 Bc4(1:10:57) 26988116kN
[+2.82]  d=51  86...R8a6 87.Rhb2 Nd8 88.Ke3 Ra7 89.Kd2 Rb7 90.Rc1 Rba7 91.Bb1 Ra1 92.Rcc2 Bb7 93.Kc1 R7a3 94.Ra2 R1xa2 95.Bxa2 Ra8 96.Kd2 Nc6 97.Bb1 Ra1 98.Kc1 Nb8 99.Ra2 Rxa2 100.Bxa2 d4 101.Kd2 Na6 102.Bb1 Bd5 103.Bd3 Nc7 104.Be2 Ba2 105.cxd4 Bd5 106.Ke3 Ba2 107.Bd3 Bd5 108.Be4 Bc4 109.Bb7 Ba2 110.Bc6 Bc4 111.Kd2 Na6 112.Kc3 Nc7 113.Be8 Nxe8 114.Nxe8 Bf1 115.Kd2 Bc4 116.Nd6(1:05:58) 25055647kN
[+2.58]  d=51  86...R8a6 87.Rhb2(0:36:30) 13626139kN
[+2.21]  d=51  86...R8a6 87.Rhb2(0:26:09) 9731860kN
[+1.93]  d=51  86...R8a6 87.Rhb2(0:23:03) 8568412kN
[+1.72]  d=51  86...R8a6 87.Rhb2(0:18:18) 6792222kN
[+1.56]  d=51  86...R8a6 87.Rhb2(0:15:12) 5632195kN
[+1.45]  d=51  86...R8a6 87.Rhb2(0:13:21) 4945317kN
[+1.38]  d=51  86...R8a6 87.Rhb2(0:11:10) 4135054kN
[+1.31]  d=50  86...R8a6 87.Rc1 Nd8 88.Ke3 Rb3 89.Rd2 Rba3 90.Kd4 Ra8 91.Rb2 R8a6 92.Rd1 Ra8 93.Rdd2 R8a6 94.Rbc2 Ra8 95.Ke3 R8a4 96.Kf2 Ra8 97.Rc1 R8a6 98.Be2 Ra8 99.Ke3 R8a4 100.Rb2 Ra6 101.Kd2 Ra8 102.Rcc2 Ra1 103.Ke3 R8a6 104.Bd3 R6a3 105.Kd4 Ra8 106.Rf2 R1a3 107.Rf1 R8a4 108.Rh2 Nb7 109.Rc2 Nd8 110.Rb1 Ra8 111.Re2 R8a4 112.Rc1(0:06:41) 2426461kN
[+1.31]  d=49  86...R8a6 87.Rc1 Nd8 88.Ke3 Rb3 89.Rd2 Rba3 90.Kd4 R6a4 91.Rb2 Ra6 92.Rd1 Ra8 93.Rdd2 R8a6 94.Rbc2 Ra8 95.Ke3 R8a4 96.Kf2 Ra8 97.Rc1 R8a6 98.Be2 Ra8 99.Ke3 R8a4 100.Rb2 Ra6 101.Kd2 Ra8 102.Rcc2 Ra1 103.Ke3 R8a6 104.Bd3 R6a3 105.Kd4 Ra8 106.Rf2 R1a3 107.Rf1 R8a4 108.Rh2 Nb7 109.Rc2 Ra8 110.Rcc1 Nd8 111.Rh1(0:04:42) 1699848kN
[+1.31]  d=48  86...R8a6 87.Rc1 Nd8 88.Ke3 Rb3 89.Rd2 Rba3 90.Kd4 R6a4 91.Rb2 Nb7 92.Ke3 Nd8 93.Kf2 Ra8 94.Rbc2 R8a4 95.Rd2 Ra8 96.Be2 Rb3 97.Ke3 Rba3 98.Rb2 R8a4 99.Kd4 Ra6 100.Rd2 Ra8 101.Ke3 R8a4 102.Rb2 Ra6 103.Kd4 R6a4 104.Rf1 Ra7 105.Rfb1 R7a4 106.Bd3 Ra6 107.Rc2 R6a4 108.Ke3 Ra6 109.Kd2 Ra7 110.Rcc1(0:01:27) 526435kN
[+1.31]  d=47  86...R8a6 87.Rc1 Nd8 88.Ke3 Rb3 89.Rd2 Rba3 90.Kd4 R6a4 91.Rb2 Nb7 92.Ke3 Nd8 93.Kf2 Ra8 94.Rbc2 R8a4 95.Rd2 Ra8 96.Be2 Rb3 97.Ke3 Rba3 98.Rb2 R8a4 99.Kd4 Ra6 100.Rd2 Ra8 101.Ke3 Rb3 102.Bd1 Rba3 103.Kf2 Nb7 104.Rdc2 Nd8 105.Be2 R8a4 106.Rd1 Ra8 107.Ke3 R8a4 108.Bd3 Ra6 109.Rb1 Ra8 110.Rbc1 R8a6 111.Rd2(0:01:18) 469314kN
[+1.31]  d=46  86...R8a6 87.Rc1 Nd8 88.Ke3 Rb3 89.Rd2 Rba3 90.Kd4 R6a4 91.Rb2 Nb7 92.Ke3 Nd8 93.Kf2 Ra8 94.Rbc2 R8a4 95.Rd2 Ra8 96.Be2 Rb3 97.Ke3 Rba3 98.Rb2 R8a4 99.Kd4 Ra6 100.Rd2 Ra8 101.Ke3 Rb3 102.Bd1 Rba3 103.Kf2 Nb7 104.Rdc2 Nd8 105.Be2 R8a4 106.Rd2 Ra8 107.Rb2 R8a4 108.Ke3 Ra6 109.Rbc2 R3a4 110.Bd3 Ra3(0:00:56) 338814kN
[+1.31]  d=45  86...R8a6 87.Rc1 Nd8 88.Ke3 Rb3 89.Rd2 Rba3 90.Kd4 R6a4 91.Rb2 Nb7 92.Ke3 Nd8 93.Kf2 Ra8 94.Rbc2 R8a4 95.Rd2 Ra8 96.Be2 Rb3 97.Ke3 Rba3 98.Rb2 R8a4 99.Kd4 Ra6 100.Rd2 Ra8 101.Ke3 Rb3 102.Bd1 Rba3 103.Kf2 Nb7 104.Rdc2 Nd8 105.Be2 R8a4 106.Rd2 Ra8 107.Rb2 R8a4 108.Ke3 Ra6 109.Rbc2 R3a4 110.Bd3 Ra3(0:00:42) 256267kN
[+1.31]  d=44  86...R8a6 87.Rc1 Nd8 88.Ke3 Rb3 89.Rd2 Rba3 90.Kd4 R6a4 91.Rb2 Nb7 92.Ke3 Nd8 93.Kf2 Ra8 94.Rbc2 R8a4 95.Rd2 Ra8 96.Be2 Rb3 97.Ke3 Rba3 98.Rb2 R8a4 99.Kd4 Ra6 100.Rd2 Ra8 101.Ke3 Rb3 102.Bd1 Rba3 103.Kf2 Nb7 104.Rdc2 Nd8 105.Be2 R8a4 106.Rd2 Ra8 107.Rb2 R8a4 108.Ke3 Ra6(0:00:34) 204849kN
[+1.31]  d=43  86...R8a6 87.Rc1 Nd8 88.Ke3 Rb3 89.Rd2 Rba3 90.Kd4 R6a4 91.Rb2 Nb7 92.Ke3 Nd8 93.Kf2 Ra8 94.Rbc2 R8a4 95.Rd2 Ra8 96.Be2 R8a4 97.Rb2 Ra8 98.Ke3 R8a4 99.Kd4 Ra6 100.Rd2 Ra8 101.Ke3 Rb3 102.Bd1 Rba3 103.Kf2 Nb7 104.Be2 Nd8 105.Rb2 R8a4 106.Ke3 Nb7 107.Kd2 Ra6 108.Ke3 Nd8(0:00:30) 182022kN
[+1.31]  d=42  86...R8a6 87.Rc1 Nd8 88.Ke3 Rb3 89.Rd2 Rba3 90.Kd4 R6a4 91.Rb2 Nb7 92.Ke3 Nd8 93.Kf2 Ra6 94.Rbc2 R6a4 95.Rd2 Rb3 96.Rcc2 Raa3 97.Rd1 Nb7 98.Ke3 Ra6 99.Rdc1 Rba3 100.Kd4 Ra8 101.Rd2 Nd8 102.Rb2 R8a4 103.Kc5 Ra6 104.Rbb1 Nb7 105.Kd4 Ra8 106.Ke3 Ra2 107.Rc2 R2a3(0:00:27) 164422kN
- - By Lazy Frank (***) [gb] Date 2016-11-30 15:24 Edited 2016-11-30 17:37

[Event "TCEC Season 9 - Superfinal"]
[Site "tcec.chessdom.com"]
[Date "2016.11.30"]
[Round "79"]
[White "Stockfish 8"]
[Black "Houdini 5"]
[Result "1/2-1/2"]
[ECO "B80"]
[Opening "Sicilian"]
[Variation "Scheveningen, English, 7...b5 8.Qd2 Bb7"]
[TimeControl "10800+15"]
[Termination "normal"]
[PlyCount "50"]
[WhiteType "engine"]
[BlackType "engine"]

1. e4 {B} c5 {B} 2. Nf3 {B} e6 {B} 3. d4 {B} cxd4 {B} 4. Nxd4 {B} Nc6 {B}
5. Nc3 {B} Qc7 {B} 6. Be3 {B} a6 {B} 7. Qd2 {B} Nf6 {B} 8. O-O-O {B} Be7
{B} 9. f3 {B} b5 {B} 10. Kb1 {B} Ne5 {B} 11. g4 {B} b4 {B} 12. Na4 h6 13.
c4 Bb7 14. Be2 Rc8 15. Rhg1 d6 16. Rc1 Qa5 17. b3 Rb8 18. h4 Nfd7 19. g5
hxg5 20. Bxg5 Bf8 21. h5 Qc7 22. Nc2 Bc6 23. Nb2 Nc5 24. h6 a5 25. Nd4 f6


1r2kb1r/2q3p1/2bppp1P/p1n1n1B1/1pPNP3/1P3P2/PN1QB3/1KR3R1 w k - 0 26


Game log file:

26. hxg7 {d=33, pd=Qxg7, mt=00:00:54, tl=01:44:26, s=52799 kN/s, n=2853667577, pv=hxg7 Qxg7 Bf4 Qb7 Nb5 Rd8 Rcd1 Qf7 Na4 Rd7 Nb6 Rd8 Ka1 Qb7 Na4 Nxa4 bxa4 Rd7 Qb2 Rg7 Rxg7 Qxg7 Qd4 Qd7 Qb6 Qd8 Nxd6+ Bxd6 Qxd8+ Kxd8 Rxd6+ Bd7 c5 Ke7 Bxe5 fxe5 Bb5 Rd8 Bxd7 Rxd7 Ra6, tb=2688, R50=50, wv=1.10,}

54 seconds easy-move (less than 1 % time usage of total time)? :eek:.
P.S. After easy-move for a next four moves SF spent more than 10% of time on clock for each move.
Parent - - By user923005 (****) [us] Date 2016-11-30 20:28
I think SF could labor on this position a long time and not change it's mind:


Searching:
1r2kb1r/2q3p1/2bppp1P/p1n1n1B1/1pPNP3/1P3P2/PN1QB3/1KR3R1 w k - 0 1

infinite: 0 ponder: 0 time: 0 increment: 0 moves to go: 0

1   +1.72   00:00     109  Nb5
2   +1.31   00:00     200  hxg7 Bxg7
3   +1.15   00:00     319  Nxc6 Nxc6 Be3
4   +1.69   00:00     442  hxg7 Bxg7 Bf4 Rb6
5   +1.31   00:00     748  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qe7
6   +1.23   00:00    1040  hxg7 Qxg7 Be3 Qb7 Nxc6 Qxc6
7   +1.25   00:00    1189  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qe7 Rh1
8   +1.22   00:00    1681  hxg7 Qxg7 Be3 Qb7 Qd1 a4 Nxc6 Nxc6
9   +1.09   00:00    7357  hxg7 Qxg7 Nxc6 Nxc6 Bf4 Qe7 Be3 Qh7 Rcd1
10   +1.13   00:00   15113  hxg7 Qxg7 Nxc6 Nxc6 Bf4 Qe7 Rcd1 Rd8 Be3 Rd7
11   +1.08   00:00   19125  hxg7 Bxg7 Bf4 Bf8 Rcd1 Qb6 Be3 a4 Nxa4 Bxa4 Nxe6
12   +0.94   00:00   45230  hxg7 Qxg7 Nxc6 Nxc6 Bf4 Qh7 Rcd1 a4 Nxa4 Nxa4 bxa4 b3 Qc3
13   +1.06   00:00   57724  hxg7 Bxg7 Be3 Bf8 Rcd1 a4 Nxa4 Bxa4 bxa4 Qa5 Rh1 Rxh1 Rxh1 Qxa4 Nb5 b3
14   +0.84   00:00  161755  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qf7 Rh1 Rh7 Rxh7 Qxh7 Rd1 a4 Nxa4 Nxa4 bxa4 b3 c5 bxa2+ Ka1 Rb1+ Rxb1
15   +0.88   00:00  197577  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qf7 Rh1 Rh7 Qc2 e5 Qd2 Rxh1 Rxh1 f5 Rh8 Qf6 Rh7 Nd4 Bxd4 exd4
16   +1.00   00:00  211201  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qh7 Rcd1 Qf7 Rh1 Rh7 Rxh7 Qxh7 Qc2 e5 Bf1 Rd8
17   +0.90   00:00  298077  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qf7 Rcd1 Rh7 Qc2 Rb7 Rh1 e5 Qd2 Ne6 Bd3 Ncd4 Qg2 Rxh1
18   +0.94   00:00  402403  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qf7 Rcd1 f5 Nd3 fxe4 Nxc5 dxc5 Qc2 exf3 Qe4 Qf5 Qxf5 exf5 Bxf3 Nd4 Bxd4
19   +0.86   00:02   1865K  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qf7 Rce1 Rd8 Qc2 e5 Rh1 Rh7 Rd1 Rxh1 Rxh1 Nd4 Bxd4 exd4 Rd1 Ne6 Bf1
20   +0.80   00:03   2258K  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qf7 Rce1 Rh7 Rd1 Rd8 Nd3 e5 Rh1 f5 Rxh7 Qxh7 Bg5 Rd7 Nxc5 dxc5
21   +0.77   00:04   2911K  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qb7 Rh1 Rh7 Rcg1 Rd8 Qc2 Ne5 Rxh7 Qxh7 Qc1 Qh3 Rh1 Qg2 Qf1 Qxf1+ Rxf1 Ra8 Bd1 Ke7 f4 Nf7 Bf3 a4 Bxc5 dxc5
22   +0.83   00:05   3500K  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qf7 Rce1 Rb7 Bd1 Rh3 Rh1 Rxh1 Rxh1 Qg8 Nd3 Nxd3 Qxd3 Rh7 Qf1 Qh8 Rxh7 Qxh7 Qg2 Ke7 f4
23   +0.88   00:06   4113K  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qf7 Rce1 Rb7 Bd1 Rh3 Nd3 a4 Nxc5 dxc5 Qg2 Rh7 bxa4 Qd7 Qe2 Qd8 f4 Nd4 Qb2 Rbg7 Qf2 Rxg1 Rxg1
24   +0.91   00:11   7509K  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qh7 Rcd1 Rd8 Qc1 Rd7 Rh1 Qg8 Rxh8 Qxh8 Nd3 Qh7 Rh1 Qg8 Qe1 Rh7 Rg1 Rg7 Rxg7 Qxg7 Qh4 Kd7 Nf4 Qf7 Qh3 a4 Nd5 axb3 axb3
25   +0.83   00:19  12777K  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qh7 Rcd1 Rd8 Nd3 Qb7 Nf4 Qf7 Ng6 Rh7 Nxf8 Qxf8 Bf4 Ne5 Rg2 Rh3 Bxe5 fxe5 Qg5 Qf7 Rdg1
26   +1.00   00:38  25705K  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qf7 Rce1 Rb7 Bd1 Rh7 Rg2 Rd7 Qc2 Rb7 f4 e5 Bg4 a4 Bxc5 dxc5 Nxa4 exf4 Qf2 f3 Qxf3 Nd4 Qd1
27   +0.73   00:53  36366K  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qb7 Rh1 Rh7 Rcg1 Rd8 Qd1 Rdd7 Nd3 a4 bxa4 b3 Nxc5 bxa2+ Kxa2 dxc5 Qb3 Qxb3+ Kxb3 Nd4+ Bxd4 cxd4 Bd3 Ra7 Rxh7 Rxh7 Rf1 Bc5 a5 Kd7 a6
28   +0.87   00:55  37649K  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qb7 Rh1 Rh7 Rcg1 Rd8 Qd1 Rdd7 Nd3 Rxh1 Rxh1 Rh7 Qg1 Qg7 Rxh7 Qxh7 Nxc5 dxc5 Bxc5 Bxc5 Qxc5 Ne7 Qg1 Kf7 c5 Qh5
29   +0.88   01:01  41693K  hxg7 Qxg7 Nxc6 Nxc6 Be3 Qb7 Rh1 Rh7 Rcg1 Rd8 Qd1 Rdd7 Nd3 Rxh1 Rxh1 Rh7 Qg1 Qg7 Rxh7 Qxh7 Nxc5 dxc5 Bxc5 Bxc5 Qxc5 Ne7 Qg1 Kf7 c5 Qh5 Qe3 Qh1+ Qc1 Qg2 Qd1
30   +1.10   03:43 148452K  hxg7 Qxg7 Bf4 Qb7 Nb5 Rd8 Rcd1 Qh7 Be3 Qe7 Qe1 Rh2 Bf4 Rh8 Qf2 Rd7 Rd2 Bh6 Bxh6 Rxh6 Rg8+ Kf7 Qg2 Ng6 Rb8 Na6 Rb6 Bxb5 cxb5 Nc5 Rb8 Rd8 Rxd8 Qxd8 Qg1
31   +1.13   04:08 164072K  hxg7 Qxg7 Bf4 Qb7 Nb5 Rd8 Rcd1 Qh7 Be3 Rd7 Ka1 Rg8 Rxg8 Qxg8 Rg1 Qh8 Qd1 Qh3 Rh1 Qg2 Rh8 Nf7 Rh7 Qg6 Rh1 Ne5 Rg1 Qh7 Qe1 Bh6 Rh1 Bxe3 Rxh7 Rxh7 Nxd6+ Kf8 Nd1 Bd4+ Kb1
32   +1.12   07:37 269841K  hxg7 Qxg7 Bf4 Qd7 Nb5 Rd8 Ka1 Rh3 Rh1 Qh7 Rxh3 Qxh3 Rf1 Rd7 Qe1 Rg7 Qd1 Rd7 Rh1 Qg2 Be3 Bb7 Rg1 Qh3 Bf2 Qh2 Bd4 Qh6 Rh1 Qg7 f4 Bxe4 Rg1 Ng6 Bh5 e5 Be3 exf4 Bxf4
33   +1.14   13:12 464655K  hxg7 Qxg7 Bf4 Qd7 Nb5 Rd8 Ka1 Rh3 Rg8 Qh7 Rcg1 Rh1 Be3 Qxg8 Rxh1 Rd7 Rg1 Qh8 Qd1 Qh3 Rh1 Qg3 Qf1 f5 exf5 Bxf3 fxe6 Nxe6 Rg1 Bxe2 Qxe2 Qf3 Qe1 Rg7 Rxg7 Bxg7 Nxd6+ Kf8 Bb6 Qc3 Qf2+ Kg8 Bxa5
34   +1.21   18:09 651507K  hxg7 Qxg7 Bf4 Qd7 Nb5 Rd8 Ka1 Qe7 Rg3 Rd7 Rcg1 Kd8 Nd4 Bb7 Be3 Kc8 Nd3 Kb8 Nf4 Qe8 Kb1 Bh6 Nb5 Bf8 Qc2 Bh6 Nxd6 Rxd6 Bxc5 Rd7 Be3 Bg5 c5 Bc6 Rxg5 fxg5
35   +0.86   21:32 774900K  hxg7 Qxg7 Bf4 Qd7 Nb5 Rd8 Ka1 Rh3 Rg8 Qh7 Rcg1 Kf7 R8g3 Rxg3 Bxg3 Be7 Nd4 Bd7 Qd1 Ng6 Nb5 Bc6 Rh1 Qg7 Nd4 Bd7 Bf2 Nf4 Bf1 e5 Nb5 Bc6 Qd2 a4 Nxa4 f5 Rg1 Qf6 exf5 Bxf3 Qe3 Be4 Nxc5
36   +1.16   26:24 957738K  hxg7 Qxg7 Bf4 Qd7 Nb5 Rd8 Ka1 Rh3 Rg8 Qh7 Rcg1 Kf7 Be3 Rd7 Nd4 Bb7 R8g2 Qh8 Bf2 Rh2 Rxh2 Qxh2 Qe1 Ke8 Rh1 Qg2 Be3 Rg7 Nb5 Rd7 Qd1 Qg8 Rg1 Qh7 Qe1 Ng6 Rh1 Qf7 Qg3 e5 Qg4 Ne6 Bb6 Nef4 Bd1
37   +0.79   32:10   1188M  hxg7 Qxg7 Bf4 Qd7 Nb5 Rd8 Ka1 Rh3 Rcf1 Qh7 Be3 Rh2 Rf2 Rxf2 Bxf2 Qh2 Qe1 Qf4 Nd4 Bb7 Rh1 Qg5 Nb5 Rd7 Rg1 Qh6 Qd1 Bc6 Rh1 Qg5 Bd4 Bg7 Rg1 Qh6 Qf1 Ng6 Nxd6+ Rxd6 Bxc5 Rd2
Parent - By Lazy Frank (***) [gb] Date 2016-12-01 04:27 Edited 2016-12-01 11:35
26. Be3!  g5 27. f4! Nxe4 28. Qe1 gxf4 29. Bxf4 Nc5 30. Ka1 Rxh6 31. Nd3!

1r2kb2/2q5/2bppp1r/p1n1n3/1pPN1B2/1P1N4/P3B3/K1R1Q1R1 b - - 1 31
- By Lazy Frank (***) [gb] Date 2016-12-04 09:42 Edited 2016-12-04 09:48
Game 93 technical review:


[Event "TCEC Season 9 - Superfinal"]
[Site "tcec.chessdom.com"]
[Date "2016.12.03"]
[Round "93"]
[White "Stockfish 8"]
[Black "Houdini 5"]
[Result "1-0"]
[TimeControl "10800+15"]
[PlyCount "126"]
[WhiteType "engine"]
[BlackType "engine"]

1. d4 {B} d5 {B} 2. c4 {B} e6 {B} 3. Nc3 {B} Nf6 {B} 4. Nf3 {B} dxc4 {B} 5.
e4 {B} Bb4 {B} 6. Bg5 {B} b5 {B} 7. a4 c6 8. e5 h6 9. exf6 hxg5 10. fxg7
Rg8 11. g3 Bb7 12. Bg2 Nd7 13. h4 gxh4 14. Rxh4 Qc7 15. Kf1 bxa4 16. Ne5 a3
17. Na2 Bd6 18. Nxf7 Kxf7 19. Qh5+ Ke7 20. Qg5+ Nf6 21. bxa3 Ke8 22. Qxf6
Qf7 23. Qf3 Qxf3 24. Bxf3 Rb8 25. Be2 Rxg7 26. Bxc4 Kd7 27. Nc3 e5 28. Ne4
exd4 29. Nxd6 Kxd6 30. Rxd4+ Kc7 31. Rc1 Rh8 32. Rc3 c5 33. Bd3 Rh1+ 34.
Ke2 Rh5 35. Rf4 Re5+ 36. Kd2 Rd7 37. Ra4 Rf5 38. f4 Rh5 39. g4 Rh3 40. Kc2
Kd6 41. Be4 Rh2+ 42. Kb3 Rd2 43. Rc2 Rd1 44. g5 Re7 45. Bxb7 Rxb7+ 46. Kc3
Kd5 47. Re2 Rc1+ 48. Kd2 Rf1 49. Re5+ Kd6 50. Rf5 Rb3 51. Ra6+ Kd7 52. Rd5+
Kc7 53. Rxc5+ Kb7 54. Ra4 Rff3 55. g6 Rg3 56. Kc2 Rbf3 57. Rb5+ Kc6 58. Rg5
Rf2+ 59. Kb1 Rf1+ 60. Kb2 Rf2+ 61. Kc1 Rc3+ 62. Kb1 Rb3+ 63. Ka1 Rb7


Ponder

White (Stockfish) ponder success = 46/54 = 85,2 %
Black (Houdini) ponder success = 36/41 = 87,8 %

Mobility

White (Stockfish) mobility = 32,1
Black (Houdini) mobility = 32,6

Nodes

Total - white (Stockfish) - 523,1144 GigaNodes (base 1024), average per move 9,3413 Gn.
Total - black (Houdini) - 862,4346 GigaNodes (base 1024), average per move 15,1304 Gn.

Time

Total time - white (Stockfish) - 2 hours 25 minutes 56 seconds, average per move 2:36.
Total time - black (Houdini) -  3 hours 15 minutes 0 seconds, average per move 3:25.

Black in time trouble at move 44.
Total time of the game 5:40:56.

Black losing move Houdini played straight away out of book: 7. ... c6
- By Lazy Frank (***) [gb] Date 2016-12-19 07:28
1r2kb1r/2q3p1/2bppp1P/p1n1n1B1/1pPNP3/1P3P2/PN1QB3/1KR3R1 w k - 0 26


Current mainline:
26. Be3 g5 27. f4 gxf4 28. Bxf4 Rd8 29. Ka1 Rd7 30. Bh5+ Kd8 31. Rcf1


3k1b1r/2qr4/2bppp1P/p1n1n2B/1pPNPB2/1P6/PN1Q4/K4RR1 b - - 6 31
- By Lazy Frank (***) [gb] Date 2016-12-20 14:50 Edited 2016-12-21 09:34
2rrn1k1/3n4/ppbppb2/6p1/1PP1P1P1/P2BN3/3R2Q1/3N2K1 w - - 0 38


Current mainline:
38. Rf2 Ne5 39. Bc2 Bg7 40. Nc3 Nf6 41. Bb3 Re8 42. Rf1 Nf7 43. Qf2 Bb7 44. Ned1 Re7 45. Qxb6 Nxg4 46. Ne3 Nge5 47. c5


2r3k1/1b2rnb1/pQ1pp3/2P1n1p1/1P2P3/PBN1N3/8/5RK1 b - - 0 47
Up Topic The Rybka Lounge / Test Positions / Investigation of some TCEC9 Season Critical Pos. (cont. 2)

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