CCC FRC semifinal: all games draw so far..

[Jouni]

.. between top3 engines! Difficult to predict anything. Or chess is solved .

[lkaufman]

Well, all draws among the top 3, but overall in the semifinals, with six of the best engines, Komodo Dragon has 18 wins to 0 losses, Stockfish 17 wins to 0 losses, and Lc0 16 wins to 0 losses as of this writing. So FRC does seem to allow for plenty of wins when there is some strength disparity, even at 3500+ levels. But I suspect that with long time limits, the top engines on this giant hardware would indeed draw 99+% of the games. Standard chess with no specified openings is even more drawish. The best engines are far from perfect, but they probably play well enough at long time limits on big hardware that they should never practically never lose a game unless forced to play an inferior opening. The draw margin in chess is just much larger than the errors made at this level. We should really find a better way to address this problem than just having each organizer pick bad openings arbitrarily. We need a solution that provides variety, decisive results, and makes some kind of sense logically.

[Uri Blass]

I guess that the problem is that engines do not know to choose the right drawing move in order to win.

In other words probably there are no losing mistakes in drawn games between top engines but the reason for not winning is not that engines are perfect but that engines do not play moves to encourage the opponent to make mistakes.

[lkaufman]

I guess that the problem is that engines do not know to choose the right drawing move in order to win.

In other words probably there are no losing mistakes in drawn games between top engines but the reason for not winning is not that engines are perfect but that engines do not play moves to encourage the opponent to make mistakes.

NNUE automatically does this to some extent, it learns what moves are likely to lead to wins in games at short searches. Also Contempt helps encourage mistakes (avoids positions that are easily drawn). Does anyone know why Stockfish got rid of Contempt? Seems bizarre.

[Sopel]

Does anyone know why Stockfish got rid of Contempt? Seems bizarre.

Because ever since NNUE was introduced contempt has been showing no improvement. Many tests against old stockfish versions with ~200 elo difference shown nothing significant, at many points in time.

I guess that the problem is that engines do not know to choose the right drawing move in order to win.

In other words probably there are no losing mistakes in drawn games between top engines but the reason for not winning is not that engines are perfect but that engines do not play moves to encourage the opponent to make mistakes.

NNUE automatically does this to some extent, it learns what moves are likely to lead to wins in games at short searches.

That's a very good point, perhaps has something to do with contempt becoming obsolete after introduction of NNUE.

[carldaman]

Komodo's contempt is functional, even when using a NN, from what I understand. If SF NNUE lacks functional contempt then that is a serious shortcoming.
Its play with the black pieces is sometimes too drawish, especially from the starting position - meaning it will merely draw against opponents rated as much as 600 Elo (!!) less a little too often.

[Uri Blass]

I believe that the problem is that alpha-beta algorithm does not try to encourage the opponent to make mistakes.

Maybe multi-pv can be better in beating weaker opponents when the idea is that with multi-pv you may evaluate better moves of 2 moves with score 0.00

Imagine you have in multi pv mode the moves x1 and x2 that both have the evaluation of equality.

You search with multi-pv=2 and find at depth 20-29 that the pv lines are
1.x1 y1 and 1.x2 y2 that both give 0.00 score
suddenly at depth 30 you find that they also lead to 0.00 score but the main line of one of them is different and you have
1.x1 y1 and 1.x2 y3 as main lines

A smart engine with multi-pv should choose x2 because there is a good probability that y2 is a mistake and a trap that the opponent may fall into it.

[Uri Blass]

Another idea is to change the way engines work.

Today engines change their mind only if they find a bigger evaluation for a different move.

I suggest to change your mind also if you find equal evaluation for a move you never considered best and is not best with multi-pv at small depths.
The idea is that if the score of a move is improving when you search deeper there is a better chance that there is something deep that you do not see that help you

[lkaufman]

.. between top3 engines! Difficult to predict anything. Or chess is solved .

Well, now number 3 Lc0 has lost 3 games (two to Stockfish, one to Dragon) so only Stockfish and Dragon are undefeated, with Dragon half a point ahead after 106 rounds, Dragon having won 26 games while Stockfish won 25. FRC doesn't seem quite so drawish now. I guess one way to tell whether Stockfish and Dragon are really unbeatable at this time control in FRC would be to have them take turns giving each other double time. I expect that the side with double time would win some games, though most would still be drawn. Of course if you don't have similar super-hardware, you would have to increase the time limit appropriately for your hardware.

[Uri Blass]

I am not sure that the side with the double time is going to win.

I made a short FRC match of 4 games between stockfish at 30+10 time control against stockfish with 3+1 time control and result was 4 draws and considering the fact that I use only a single thread for stockfish it is clearly faster time control then the time they test in CCC.


[pgn][Event "Chess Tournament3"]
[Date "2021.10.13"]
[Round "1"]
[White "Stockfish 091021 dup"]
[Black "Stockfish 091021"]
[Result "1/2-1/2"]
[TimeControl "depth: 6;depth: 10"]
[Time "13:57:36"]
[Board "1"]
[Termination "repetition"]
[Variant "chess960"]
[FEN "rnknrbbq/pppppppp/8/8/8/8/PPPPPPPP/RNKNRBBQ w EAea - 0 1"]
[SetUp "1"]

1. f4 {+0.45/26 3635 4279889} f6 {+0.53/35 90888 104851087} 2. e4 {+0.46/25 2238 2749112} e5 {+0.43/33 22999 26637300}
3. g3 {+0.69/23 2396 2901241} Nbc6 {+0.45/33 29211 33304852} 4. Nbc3 {+0.57/27 4719 5544922} g6 {+0.37/32 53763 61418823}
5. Nd5 {+0.56/30 12946 15017596} exf4 {+0.67/36 112994 130184955} 6. Nxf4 {+0.45/27 14994 17776308} f5 {+0.71/34 29901 35119475}
7. Nc3 {+0.44/24 1511 1860669} g5 {+0.56/34 25399 30573109} 8. Nd3 {+0.65/23 2257 2666931} fxe4 {+0.59/32 26421 32027226}
9. Rxe4 {+0.66/26 2622 3190962} Ne6 {+0.61/31 26696 33149794} 10. O-O-O {+0.48/28 12713 15620743} Bf7 {+0.56/34 91939 112136956}
11. Bg2 {+0.44/29 19119 23561547} O-O-O {+0.37/31 23885 30719970} 12. Nb5 {+0.52/29 6810 8546202} a6 {+0.25/34 26408 33256656}
13. Na7+ {+0.34/26 1979 2619567} Kb8 {+0.31/37 29780 38549424} 14. Nxc6+ {+0.23/27 3027 3929953} dxc6 {+0.27/38 28207 37315619}
15. Ne5 {+0.23/28 3341 4302347} Qg8 {+0.16/36 28782 38737975} 16. Nxf7 {+0.30/26 3097 4055601} Qxf7 {+0.07/36 31542 41952689}
17. Bf1 {+0.35/29 9677 12538445} g4 {+0.10/37 30604 40308465} 18. Bc4 {+0.34/29 1645 2131615} b5 {+0.06/40 27607 36042715}
19. Bb3 {+0.25/30 2509 3348223} Qg6 {+0.00/41 40649 53705652} 20. Rde1 {+0.15/28 4048 5046729} Bh6 {+0.00/43 28491 38357120}
21. R1e2 {+0.24/28 2594 3268080} Qf5 {+0.00/45 29072 40231186} 22. Qg2 {+0.00/28 3895 5092579} Rf8 {+0.00/49 37474 52085098}
23. c3 {+0.00/31 2339 3123617} Qf3 {+0.00/47 31723 41949625} 24. Be3 {+0.00/32 3482 4647146} Bxe3 {+0.00/47 27897 37137604}
25. Rxe6 {+0.00/34 4986 6580051} Bg5 {+0.00/47 40392 53553798} 26. Kb1 {+0.00/35 2136 2767773} Qf5+ {+0.00/47 54241 72133487}
27. Qe4 {+0.00/35 2237 2943738} Qxe4+ {+0.00/50 53557 71425922} 28. R6xe4 {+0.00/37 2480 3189790} Rxd2 {+0.00/48 118623 158304576}
29. Rxd2 {+0.00/35 3384 4404621} Bxd2 {+0.00/51 30636 40198615} 30. Re2 {+0.00/37 2584 3345688} Rf1+ {+0.00/48 51296 67168958}
31. Kc2 {+0.00/37 2247 2841506} Bg5 {+0.00/49 27804 37818215} 32. Be6 {+0.00/37 2432 3120233} c5 {+0.00/50 70950 96288626}
33. Bxg4 {+0.00/31 2169 2860711} c4 {+0.00/50 33003 44785427} 34. b3 {+0.00/33 4081 5530442} cxb3+ {+0.00/49 25793 35744924}
35. axb3 {+0.00/33 2130 2879581} c6 {+0.00/48 49011 67294409} 36. h4 {+0.00/34 2284 3138763} Bd8 {+0.00/47 23551 32953825}
37. b4 {+0.00/34 2411 3393186} Kc7 {+0.00/45 24861 34694135} 38. Re8 {+0.00/32 3310 4534625} Rf2+ {+0.00/44 30417 43272836}
39. Kb3 {+0.00/34 2418 3367513} Rf7 {+0.00/44 50519 72850124} 40. Rg8 {+0.00/33 4382 5861669} Bf6 {+0.00/42 31359 43859559}
41. Be2 {+0.00/34 2843 3864986} Kb6 {+0.00/43 46461 64873182} 42. Rb8+ {+0.00/33 2348 3246087} Kc7 {+0.00/46 21922 31437406}
43. Rg8 {+0.00/33 3400 4660377} Re7 {+0.00/46 32814 46322400} 44. Bd3 {+0.00/36 2078 2867031} Re5 {+0.00/45 22189 31428240}
45. Rf8 {+0.00/31 4233 5728653} Be7 {+0.00/47 21361 30478903} 46. Rf7 {+0.00/33 1867 2562647} h5 {+0.00/44 22521 31909768}
47. Rg7 {+0.00/34 2672 3620919} Kb6 {+0.00/46 26208 38466859} 48. Rg6 {+0.00/35 1892 2613435} Kc7 {+0.00/49 40564 59341445}
49. Kc2 {+0.00/33 2633 3619405} Bd6 {+0.00/44 22184 32159449} 50. Rg7+ {+0.00/29 2719 3818609} Be7 {+0.00/45 26151 37512134}
51. Rh7 {+0.00/32 1957 2681555} Kb6 {+0.00/45 20756 30102886} 52. Rh6 {+0.00/38 1900 2604621} Bf8 {+0.00/49 21537 30646638}
53. Rg6 {+0.00/32 1936 2703159} Kc7 {+0.00/44 20591 30164313} 54. Rg8 {+0.00/37 2367 3377489} Be7 {+0.00/45 20223 29227573}
55. Rg7 {+0.00/30 2346 3282981} Kb6 {+0.00/45 21621 31703609} 56. Rg6 {+0.00/33 1789 2516497} Kc7 {+0.00/52 66918 96604164}
57. Rg7 {+0.00/36 11074 15757875} Kb6 {+0.00/47 42774 63211192} 58. Rg6 {+0.00/37 2314 3269775} Kb7 {+0.00/47 23287 32983262}
59. Rg7 {+0.00/35 2421 3439305} Kb6 {+0.00/47 27153 38289544} 1/2-1/2


[Event "Chess Tournament3"]
[Date "2021.10.13"]
[Round "1"]
[White "Stockfish 091021"]
[Black "Stockfish 091021 dup"]
[Result "1/2-1/2"]
[TimeControl "depth: 10;depth: 6"]
[Time "13:57:36"]
[Board "2"]
[Termination "insufficient material"]
[Variant "chess960"]
[FEN "rnknrbbq/pppppppp/8/8/8/8/PPPPPPPP/RNKNRBBQ w EAea - 0 1"]
[SetUp "1"]

1. f4 {+0.30/32 35319 41375107} f6 {+0.51/26 11118 13378796} 2. e4 {+0.30/33 23242 27015787} e5 {+0.39/25 1509 1780290}
3. g3 {+0.58/32 30660 34979515} Nbc6 {+0.53/25 3070 3695163} 4. Nbc3 {+0.40/32 27205 31275035} Nd4 {+0.44/25 4282 4883091}
5. Nd5 {+0.46/33 107794 120620837} c6 {+0.37/25 2978 3396401} 6. N5e3 {+0.27/35 55570 62885573} N4e6 {+0.25/25 9260 10501972}
7. Qf3 {+0.59/33 74449 85543412} h5 {+0.38/26 11211 12974599} 8. f5 {+0.45/34 51766 58722091} Nc7 {+0.36/25 6055 6890271}
9. Nc3 {+0.49/34 21976 25152479} Bf7 {+0.47/28 3809 4487263} 10. Bc4 {+0.38/39 286163 326860999} Bxc4 {+0.29/25 2657 3157681}
11. Nxc4 {+0.42/36 15731 18430092} Qg8 {+0.32/29 3222 3775248} 12. Ne3 {+0.31/39 33186 39156289} Qf7 {+0.51/28 3648 4371445}
13. a4 {+0.34/38 27842 32653365} b6 {+0.59/27 3374 3911059} 14. a5 {+0.36/37 34217 39605511} b5 {+0.37/29 9356 10568347}
15. a6 {+0.52/36 28372 33076682} b4 {+0.34/26 3255 3764421} 16. Nb1 {+0.58/40 137503 160461393} Rb8 {+0.27/26 2551 2951047}
17. Ng2 {+0.27/37 45605 54790742} d5 {+0.62/29 10529 12319536} 18. Bxa7 {+0.48/39 47992 58199999} Ra8 {+0.54/27 1988 2503287}
19. Bf2 {+0.68/36 18760 24163321} Rxa6 {+0.45/28 2615 3177943} 20. Rxa6 {+0.58/36 25580 32077562} Nxa6 {+0.20/28 4458 5446389}
21. d3 {+0.53/36 23158 29222157} b3 {+0.63/30 7633 9258575} 22. c3 {+0.39/38 52613 65656221} Bc5 {+0.49/28 3024 3791168}
23. Nd2 {+0.44/35 27422 35520244} Bxf2 {+0.39/28 5256 6558025} 24. Qxf2 {+0.54/36 22685 29233420} Qb7 {+0.49/28 3283 4195684}
25. d4 {+0.36/38 31974 41666383} Nf7 {+0.56/27 2550 3283583} 26. exd5 {+0.28/38 32548 41978028} cxd5 {+0.56/28 5503 7030553}
27. Nf4 {+0.09/39 90434 118559514} O-O {+0.67/27 4918 6397190} 28. Ng6 {+0.34/43 164947 214272658} Ra8 {+0.53/24 3084 3868502}
29. O-O {+0.32/36 13861 18602033} exd4 {+0.20/25 2565 3291762} 30. Qxd4 {+0.13/37 20016 26551614} Nc7 {+0.16/24 2697 3458644}
31. Nf3 {+0.04/37 33978 44707864} Re8 {+0.17/24 2548 3322434} 32. Qd1 {+0.03/40 20812 28080556} Nd6 {+0.00/27 2522 3318466}
33. Nd4 {+0.14/41 19038 25776732} Ncb5 {+0.21/31 3515 4757736} 34. Qxb3 {+0.02/43 21670 30715178} Nxd4 {+0.07/33 2615 3692768}
35. Qxb7 {+0.00/45 22038 31385825} Nxb7 {+0.02/35 2842 4044782} 36. cxd4 {+0.00/48 22528 32563073} Nd6 {+0.00/36 2530 3755005}
37. b4 {+0.00/49 32165 45914146} Kf7 {+0.00/36 2708 3689917} 38. Nf4 {+0.00/50 21812 31811917} Nxf5 {+0.00/36 3344 4663426}
39. b5 {+0.00/51 28686 43076157} Nxd4 {+0.00/39 2863 4182282} 40. b6 {+0.00/54 18087 30248350} Ne2+ {+0.02/40 2380 3907103}
41. Nxe2 {+0.00/57 24866 48462016} Rxe2 {+0.00/40 3337 5827385} 42. Rb1 {+0.00/58 24250 48303801} Re8 {+0.00/41 2843 4997672}
43. Kf2 {+0.00/59 23442 47435547} Rb8 {+0.00/42 2407 4189599} 44. Ke3 {+0.00/57 18549 36147135} Ke7 {+0.00/39 2368 4269128}
45. Kd4 {+0.00/56 17742 39163136} Kd6 {+0.00/42 2691 5029540} 46. b7 {+0.00/56 27362 55864499} Kc6 {+0.00/41 2413 4570143}
47. Rb3 {+0.00/58 41787 95402867} g6 {+0.00/37 2423 4412312} 48. h3 {+0.00/57 24768 55938801} g5 {+0.00/42 2112 4036104}
49. g4 {+0.00/60 16861 38903038} hxg4 {+0.00/41 2020 4137685} 50. hxg4 {+0.00/89 16472 42123336} Rxb7 {+0.00/48 2267 5357899}
51. Rxb7 {+0.00/77 104423 259594970} Kxb7 {+0.00/51 1986 5028996} 52. Kxd5 {+0.00/77 96017 259749572} f5 {+0.00/53 2301 5269321}
53. gxf5 {+0.00/77 27203 79107305} Kc7 {+0.00/53 2335 6109871} 54. f6 {+0.00/72 1561 8164256} Kd7 {+0.00/70 2062 7706532}
55. f7 {+0.00/71 2382 10690168} Ke7 {+0.00/70 1962 6916761} 56. Ke4 {+0.00/93 3053 15048602} Kxf7 {+0.00/95 1987 7912092}
57. Kf5 {+0.00/119 3694 15593184} g4 {+0.00/93 1952 6923554} 58. Kxg4 {+0.00/119 4721 12464570} 1/2-1/2


[Event "Chess Tournament3"]
[Date "2021.10.13"]
[Round "1"]
[White "Stockfish 091021 dup"]
[Black "Stockfish 091021"]
[Result "1/2-1/2"]
[TimeControl "depth: 6;depth: 10"]
[Time "13:57:36"]
[Board "3"]
[Termination "repetition"]
[Variant "chess960"]
[FEN "qbbrnkrn/pppppppp/8/8/8/8/PPPPPPPP/QBBRNKRN w GDgd - 0 1"]
[SetUp "1"]

1. O-O {+0.09/25 7109 8835277} O-O {+0.25/35 115180 149119708} 2. d4 {+0.26/24 2746 3752403} d5 {+0.25/31 20332 26656310}
3. b3 {+0.23/24 3893 5129748} b5 {+0.30/32 51752 66653966} 4. Ng3 {+0.26/29 13572 17817366} c6 {+0.29/30 15815 20865422}
5. Nd3 {+0.25/23 1770 2358967} Nd6 {+0.26/31 21868 27720259} 6. c3 {+0.36/26 8010 10195782} Ng6 {+0.32/31 33171 42281887}
7. Qb2 {+0.36/27 2893 3711619} a5 {+0.15/32 25943 33261555} 8. Qc2 {+0.26/24 3806 4792214} f6 {+0.27/33 64598 82235561}
9. e3 {+0.26/26 7392 9292689} Rde8 {+0.22/36 90375 114871983} 10. f4 {+0.25/25 2210 2821206} Nh4 {-0.10/33 23174 30288250}
11. Ba3 {+0.01/27 6495 8098538} Nhf5 {+0.01/37 30411 38649347} 12. Nf2 {+0.00/28 4088 5267402} g6 {+0.00/36 27527 34365807}
13. Nxf5 {+0.03/29 8111 10191980} Bxf5 {+0.00/36 31219 39784677} 14. Qd2 {-0.02/29 1841 2457507} Bxb1 {+0.00/38 27006 34678389}
15. Rxb1 {+0.17/30 4263 5616027} Qa7 {+0.00/37 28654 36804199} 16. Bc5 {+0.00/29 12700 16469031} Qd7 {+0.00/41 70388 88991413}
17. Rbe1 {-0.04/25 3126 4035210} f5 {+0.08/36 28016 37011545} 18. Ra1 {+0.05/26 2553 3358515} Bc7 {+0.00/36 32633 42439222}
19. Bxd6 {+0.00/30 10993 14238505} exd6 {+0.00/36 30814 39592997} 20. a4 {+0.00/30 9856 12424583} Bd8 {+0.00/34 30001 38822622}
21. Rfe1 {+0.00/26 2737 3537259} Re6 {+0.00/41 29192 37742434} 22. Nd3 {+0.00/29 2424 3060616} bxa4 {+0.00/42 30368 38533055}
23. Rxa4 {+0.00/31 2188 2668300} Rfe8 {+0.00/44 34049 43341355} 24. Raa1 {+0.00/33 4816 5935707} Qe7 {+0.00/46 76642 96058734}
25. Kf2 {+0.00/34 2235 2815079} Qh4+ {+0.00/47 33116 41649851} 26. Kg1 {+0.00/35 3342 4120702} Qe7 {+0.00/50 27836 35578053}
27. Kf2 {+0.00/37 2320 2838732} Qh4+ {+0.00/51 41051 50889732} 28. Kg1 {+0.00/48 2596 3345190} Qe7 {+0.00/63 32407 42114456}
1/2-1/2


[Event "Chess Tournament3"]
[Date "2021.10.13"]
[Round "1"]
[White "Stockfish 091021"]
[Black "Stockfish 091021 dup"]
[Result "1/2-1/2"]
[TimeControl "depth: 10;depth: 6"]
[Time "13:57:36"]
[Board "4"]
[Termination "repetition"]
[Variant "chess960"]
[FEN "qbbrnkrn/pppppppp/8/8/8/8/PPPPPPPP/QBBRNKRN w GDgd - 0 1"]
[SetUp "1"]

1. Ng3 {+0.30/34 111327 139354893} O-O {+0.27/25 4118 5345523} 2. b3 {+0.37/33 33549 43456359} d5 {+0.06/24 3017 3852323}
3. d4 {+0.39/31 27219 34942660} Ng6 {+0.14/27 5462 7195330} 4. O-O {+0.38/31 23498 29934290} b6 {+0.17/23 3080 3999290}
5. c4 {+0.29/33 21673 28308334} dxc4 {+0.11/25 2906 3796902} 6. bxc4 {+0.74/35 27010 35894228} c5 {+0.20/27 4398 5748219}
7. d5 {+0.61/36 31696 41339481} Be5 {+0.29/26 4218 5486860} 8. Bb2 {+0.56/36 32284 42093901} Bxb2 {+0.32/28 3850 5010493}
9. Qxb2 {+0.52/36 28407 37651129} Nd6 {+0.37/27 4561 5923218} 10. Qc3 {+0.50/36 32661 42941931} Ba6 {+0.38/26 3768 4926449}
11. Bd3 {+0.65/35 28165 37740054} Nf4 {+0.45/25 3079 4037515} 12. Nf3 {+0.69/36 34106 45698637} f6 {+0.45/27 11227 14507829}
13. Rfe1 {+0.92/33 30513 39870426} Rfe8 {+0.56/27 2639 3473135} 14. h4 {+0.85/34 36742 47800133} Qc8 {+0.65/26 4968 6392346}
15. h5 {+0.90/34 27776 36301924} Qg4 {+0.85/28 10190 12883247} 16. Nh2 {+0.86/38 73396 94627537} Qg5 {+0.84/29 6618 8641481}
17. Qc2 {+0.49/40 53468 68815501} Nxd3 {+0.95/28 2454 3291638} 18. exd3 {+1.04/33 30710 40313766} Bc8 {+0.88/28 2599 3397519}
19. Qa4 {+1.26/35 36217 47352274} Rd7 {+0.83/26 4045 5170988} 20. Nf3 {+1.30/34 36464 47861671} Qf4 {+0.85/29 7315 9514001}
21. d4 {+1.11/38 62053 81419379} Rf8 {+1.08/28 4871 6358536} 22. h6 {+1.16/37 78153 101724718} gxh6 {+1.12/26 7202 9314700}
23. Rd2 {+1.35/34 20489 27714737} h5 {+1.18/29 19416 24803043} 24. Nxh5 {+1.26/38 47893 63285100} Qg4 {+1.24/27 1680 2288709}
25. Ng3 {+1.32/37 32157 43785985} h5 {+1.23/27 4718 6170865} 26. Rde2 {+1.22/37 48496 65133428} Rf7 {+1.06/25 2528 3409292}
27. Re4 {+0.72/40 210629 280580464} Nxe4 {+1.00/26 2961 3979305} 28. Rxe4 {+0.62/39 31393 44084847} Qg7 {+1.08/29 4817 6384760}
29. dxc5 {+0.79/37 29465 41291209} bxc5 {+1.12/27 2411 3207046} 30. Nxh5 {+0.84/39 53616 72943291} Qh7 {+1.17/27 2753 3647546}
31. Qc6 {+0.79/40 26505 36714640} Rd8 {+0.72/26 2366 3227866} 32. Ng3 {+0.81/40 29701 40628118} Rg7 {+0.97/28 5215 6892568}
33. Re1 {+0.33/40 84308 117461094} Rf8 {+0.96/25 2504 3252590} 34. Qxc5 {+0.68/37 28407 40195403} Qd3 {+0.77/28 8714 11308476}
35. Re3 {+0.82/34 70779 93644081} Qd1+ {+0.89/24 1764 2345764} 36. Re1 {+0.74/34 32985 44022244} Qd3 {+0.68/26 4678 6197644}
37. Re3 {+0.50/41 200537 269569528} Qd1+ {+0.80/24 2916 3823612} 38. Ne1 {+0.62/39 12513 19816850} Bd7 {+0.74/27 7339 9570233}
39. Qxa7 {+0.62/33 17408 22604423} Bg4 {+0.94/25 1368 1796214} 40. Kf1 {+0.55/40 152285 203395696} e6 {+0.64/23 1768 2239207}
41. Qc5 {+0.45/36 18312 25150551} exd5 {+0.53/23 2127 2729901} 42. Rd3 {+0.47/36 15328 20666367} Qc1 {+0.58/23 2850 3627080}
43. Qxd5+ {+0.42/34 20445 27624844} Kh8 {+0.48/24 2181 2833575} 44. Re3 {+0.51/36 13798 19256197} Rc8 {+0.51/24 1802 2359855}
45. Re4 {+0.51/34 15220 20830216} Qg5 {+0.53/25 2420 3157863} 46. Qd6 {+0.33/36 23681 33306041} Rd7 {+0.55/22 2027 2681529}
47. Qb4 {+0.45/34 15305 21665206} f5 {+0.50/26 8258 11084355} 48. Qa5 {+0.49/30 12284 17179330} Rcd8 {+0.48/25 4265 5751251}
49. Re6 {+0.25/33 21205 29821163} Kg8 {+0.68/23 2008 2713104} 50. Qe5 {+0.37/34 13555 19494521} Qg7 {+0.51/22 1536 2086952}
51. Re8+ {+0.20/36 36722 53226078} Kh7 {+0.34/28 1543 2147037} 52. Rxd8 {+0.15/37 20670 30526829} Qxe5 {+0.41/29 1996 2869597}
53. Rxd7+ {+0.30/32 4681 7290485} Kg6 {+0.32/31 3813 5671078} 54. Rd5 {+0.37/36 9108 13902631} Qb8 {+0.59/30 5104 7485975}
55. a3 {+0.41/30 6737 10176645} f4 {+0.60/22 391 541221} 56. Ne2 {+0.34/39 31323 50827559} Bxe2+ {+0.34/24 572 848932}
57. Kxe2 {+0.35/39 3735 6275300} Qb3 {+0.43/27 698 1078281} 58. Rd4 {+0.34/43 27147 46255348} Qb2+ {+0.34/29 660 1032287}
59. Rd2 {+0.37/40 5092 8980441} Qe5+ {+0.29/31 687 1081925} 60. Kf1 {+0.24/39 10323 18505864} Qc3 {+0.32/29 720 1132780}
61. Rc2 {+0.39/37 4540 8120119} Qxa3 {+0.36/28 900 1401607} 62. Ke2 {+0.45/39 6771 12550376} Qe7+ {+0.39/25 812 1302000}
63. Kd2 {+0.28/40 9912 18462436} Qg5 {+0.33/28 934 1516229} 64. f3 {+0.15/40 26567 47533585} Kf6 {+0.36/26 962 1569595}
65. c5 {+0.15/40 3835 6983233} Ke7 {+0.32/29 837 1369794} 66. Rc4 {+0.15/41 11167 20229170} Qd5+ {+0.16/30 1957 3245321}
67. Kc3 {+0.02/43 5845 11015032} Qe5+ {+0.10/32 804 1358024} 68. Kb3 {+0.01/45 5261 9770955} Qe3+ {+0.09/31 832 1402660}
69. Ka4 {+0.01/44 5745 10709685} Kd7 {+0.09/32 1243 2089071} 70. Nc2 {+0.01/46 6139 11581336} Qe2 {+0.00/30 829 1406289}
71. Kb5 {+0.01/46 6370 11854923} Kc7 {+0.23/31 3340 5548923} 72. Nd4 {+0.10/42 27081 48890442} Qxg2 {+0.14/30 574 955013}
73. Rc2 {+0.32/38 3318 6422980} Qg6 {+0.20/31 652 1105589} 74. Rd2 {+0.34/42 6182 11619211} Qe8+ {+0.26/33 971 1566339}
75. Kc4 {+0.26/46 11079 20432161} Qa4+ {+0.37/32 1030 1676351} 76. Kd5 {+0.18/44 5654 10606220} Qa8+ {+0.37/31 591 982652}
77. Ke5 {+0.18/43 5847 10939733} Qh8+ {+0.36/33 845 1426943} 78. Ke4 {+0.18/44 10115 19004151} Qh7+ {+0.18/32 1539 2673683}
79. Nf5 {+0.18/46 9415 18139591} Kc6 {+0.16/29 601 1031177} 80. Rd5 {+0.15/40 6760 13260166} Kb5 {+0.16/30 648 1070865}
81. Ke5 {+0.15/38 7157 14023317} Qh8+ {+0.18/31 1489 2496061} 82. Kxf4 {+0.15/41 6919 14117408} Qh2+ {+0.15/29 652 1141036}
83. Ke4 {+0.08/42 38765 76269476} Qe2+ {+0.13/30 980 1722894} 84. Ne3 {+0.15/43 3360 7093280} Qe1 {+0.20/31 1050 1854843}
85. Re5 {+0.07/43 14373 29215057} Kc6 {+0.23/30 732 1296005} 86. Kf5 {+0.07/44 6057 12667593} Qg3 {+0.26/31 876 1580926}
87. Ke4 {+0.07/45 7462 15675523} Qe1 {+0.18/32 1458 2642672} 88. Kf4 {+0.06/43 12268 25271159} Qd2 {+0.21/32 1595 2917097}
89. Kg4 {+0.06/39 5342 11770340} Qe2 {+0.24/32 489 887134} 90. Kf4 {+0.06/41 6566 14065961} Qd2 {+0.26/35 638 1121840}
91. Kf5 {+0.06/41 6714 15166191} Qf2 {+0.11/29 670 1298408} 92. Kg4 {+0.00/44 23039 47207600} Qe2 {+0.08/26 936 1727460}
93. Re6+ {+0.00/46 5181 11822464} Kxc5 {+0.11/30 826 1518387} 94. Kf4 {+0.00/47 6206 13867212} Qh2+ {+0.00/29 696 1149473}
95. Kg4 {+0.00/50 6462 14936936} Qg1+ {+0.07/28 887 1493943} 96. Kf5 {+0.00/52 8252 16579599} Qh1 {+0.00/33 1676 2717172}
97. Ke4 {+0.00/51 8107 15988553} Qh7+ {+0.00/30 1046 1676403} 98. Nf5 {+0.00/47 6513 12870117} Qh2 {+0.00/28 1105 1624683}
99. Re5+ {+0.00/50 7268 13598562} Kc6 {+0.00/30 692 991962} 100. Re7 {+0.00/51 7765 16064344} Kb6 {+0.04/27 1090 1696436}
101. Re6+ {+0.00/48 7893 15917056} Kc7 {+0.04/29 959 1456974} 102. Rf6 {+0.00/52 8185 17537921} Qb2 {+0.00/31 686 1036098}
103. Nd6 {+0.00/53 8258 17455368} Kd7 {+0.00/36 762 1284173} 104. Kf5 {+0.00/58 8813 19716166} Qe2 {+0.00/40 1019 1877934}
105. Kf4 {+0.00/58 12134 25045312} Qh2+ {+0.00/43 1080 1951591} 106. Kg4 {+0.00/61 18975 34417577} Qg1+ {+0.00/41 3601 5785413}
107. Kh4 {+0.00/59 5446 11463176} Qh2+ {+0.00/41 605 966133} 108. Kg5 {+0.00/62 9703 19351260} Qg3+ {+0.00/42 563 964589}
109. Kh5 {+0.00/63 10535 21721662} Qh3+ {+0.00/45 728 1283532} 110. Kg5 {+0.00/61 7479 15064715} Qg2+ {+0.00/47 767 1348961}
111. Kh4 {+0.00/63 8539 16183386} Qh2+ {+0.00/44 730 1204967} 112. Kg4 {+0.00/59 30074 51889466} Qg1+ {+0.00/46 717 1103398}
113. Kh5 {+0.00/58 35168 63018325} Qh2+ {+0.00/48 1079 1753462} 114. Kg6 {+0.00/58 2749 5124770} Qg3+ {+0.00/46 974 1707615}
115. Kh7 {+0.00/60 4844 9529145} Qh2+ {+0.00/49 928 1881552} 116. Kg6 {+0.00/59 5402 10787544} Qg1+ {+0.00/47 834 1419274}
117. Kh5 {+0.00/63 5912 10730633} Qh2+ {+0.00/47 1556 2652909} 118. Kg5 {+0.00/64 5843 9651201} Qg1+ {+0.00/46 744 1161388}
119. Kf4 {+0.00/56 7298 11259607} Qh2+ {+0.00/49 758 1152388} 120. Ke3 {+0.00/58 31886 56091822} Qg1+ {+0.00/41 762 1141041}
121. Kf4 {+0.00/63 11061 20171221} Qh2+ {+0.00/52 846 1462959} 1/2-1/2



[/pgn]