TalkChess.com

Nordlandia wrote:Here is another request! Please make it so Komodo reset hash in percentage during each turn.

In Fritz and Arena Komodo stand at 99% from the early openings, i don't know why.

That is what Hash is designed for. It's best state is "100% full"

The more hash is full (both in absolute MBytes and %) - the more analyzed positions is passed to next move

https://chessprogramming.wikispaces.com ... tion+Table

Because there are a limited number of entries in a transposition table, and because in modern chess programs they can fill up very quickly, it is necessary to have a scheme by which the program can decide which entries would be most valuable to keep, i.e. a replacement scheme

Houdini recommend you to set Hash size so it is 100% filled just in time of average move.
http://www.cruxis.com/chess/manual/inde ... gement.htm

Yuri Pylypenko Stockfish reset hash for each turn except for "ponder hit"

Jon Fredrik Åsvang wrote:Yuri Pylypenko Stockfish reset hash for each turn except for "ponder hit"

It is GUI bug mentioned on page 2 of this topic:

Mark Lefler wrote: Persistent Hash problems have to do with GUIs that sent hash Clear commands when they should not. I have contacted the GUI authors that seem to do this and asked for an fix. At lease one says they are working on it. I also have made some changes in how Komodo "ages" the hash table with Persistent Hash, which improves it performance. I am trying to code around the GUI bugs, but not everything is possible without someone not liking a change. I have some change sin Analysis Mode also, but will wait to describe them closer to a release.

http://support.stockfishchess.org/discu ... ash-tables

Daylen Yang, SF support:
Stockfish does not do this. If you are seeing this, it is because your GUI is sending new game or clear hash commands to the engine.

Nordlandia wrote:With that new parameter slightly adjusted I'm quite sure Komodo 9.4 will immediately detect 17 Rxb7!? from the famous Kasparov vs Shirov 1994 game.

[d]r2qk2r/1b3ppp/p2p1b2/2nNp3/1R2P3/2P5/1PN2PPP/3QKB1R w Kkq - 0 17

[d]r2qk2r/1n3ppp/p2p1b2/3Np3/1P2P3/2P5/2N2PPP/3QKB1R b Kkq - 0 18

Position is roughly in balance even full exchange down.

Maybe Larry know the necessary value in this case although he can't reveal it yet

Komodo 9.4 default:
New game
r2qk2r/1b3ppp/p2p1b2/2nNp3/1R2P3/2P5/1PN2PPP/3QKB1R w Kkq - 0 1

Analysis by Komodo 9.4 64-bit:

17.Rb6 Bxd5 18.Qxd5 Qxb6 19.Qxa8+ Qd8 20.Qd5 0-0 21.b4
+/= (0.39) Depth: 7 00:00:00 100kN
17.Rb6 Bg5 18.b4
+/= (0.47 ++) Depth: 8 00:00:00 105kN
17.Rb6 Bxd5 18.Qxd5
+/= (0.54 ++) Depth: 8 00:00:00 108kN
17.Rb6 Bxd5 18.Qxd5 Qxb6 19.Qxa8+ Qd8 20.Qd5 0-0 21.b4 Na4
+/= (0.62) Depth: 8 00:00:00 111kN
17.Nxf6+ gxf6 18.Ne3
+/- (0.74 ++) Depth: 8 00:00:00 139kN
17.Nxf6+ Qxf6
+/= (0.55 --) Depth: 8 00:00:00 151kN
17.Rb6 Bxd5 18.Qxd5 Qxb6 19.Qxa8+ Qd8 20.Qd5 0-0 21.b4 Na4
+/= (0.62) Depth: 8 00:00:00 158kN
17.Rb6 0-0
+/= (0.55 --) Depth: 9 00:00:00 188kN
17.Rb6 0-0
+/= (0.48 --) Depth: 9 00:00:00 202kN
17.Rb6 0-0
+/= (0.37 --) Depth: 9 00:00:00 206kN
17.Rb6 0-0
= (0.22 --) Depth: 9 00:00:00 220kN
17.Rb6 0-0
= (0.00 --) Depth: 9 00:00:00 236kN
17.Rxb7 Nxb7 18.Nxf6+ gxf6 19.Ne3 0-0 20.b4 Kh8 21.Bc4 a5 22.Bd5 Qd7 23.Bxb7
= (0.30) Depth: 9 00:00:00 269kN
17.Rxb7 Nxb7 18.Nxf6+
+/= (0.37 ++) Depth: 10 00:00:00 283kN
17.Rxb7 Nxb7
= (0.30 --) Depth: 10 00:00:00 320kN
17.Rxb7 Nxb7
= (0.18 --) Depth: 10 00:00:00 377kN
17.Rxb7 Nxb7
= (0.03 --) Depth: 10 00:00:00 388kN
17.Rxb7 Nxb7 18.Nxf6+
= (0.15 ++) Depth: 10 00:00:00 412kN
17.Rxb7 Nxb7 18.Nxf6+ Qxf6 19.Qd5 Rb8 20.Bxa6 Nc5 21.Qc6+ Kf8 22.Ne3 Kg8 23.b4 Nxa6 24.Qxa6 Qg6 25.Qc6
= (0.22) Depth: 10 00:00:00 422kN
17.Rxb7 Nxb7
= (0.15 --) Depth: 11 00:00:00 454kN
17.Rxb7 Nxb7
= (0.08 --) Depth: 11 00:00:00 500kN
17.Rxb7 Nxb7
= (-0.02 --) Depth: 11 00:00:00 538kN
17.Rxb7 Nxb7
= (-0.17 --) Depth: 11 00:00:00 605kN
17.Nce3 0-0 18.Bc4 Bg5 19.Nf5 g6 20.h4 gxf5 21.hxg5 Qxg5 22.Qh5 Qxh5 23.Rxh5 a5
= (0.03) Depth: 11 00:00:00 701kN
17.Nce3 0-0 18.Rxb7 Nxb7 19.b4 a5 20.Bb5 axb4 21.cxb4 Kh8 22.0-0 Bg5 23.Bc6 Qc8 24.b5 Bxe3
= (-0.01) Depth: 12 00:00:00 871kN
17.Na3 Bxd5 18.Qxd5
= (0.10 ++) Depth: 12 00:00:00 1235kN
17.Na3 Bxd5 18.Qxd5
= (0.17 ++) Depth: 12 00:00:00 1262kN
17.Na3 Bxd5 18.Qxd5
= (0.27 ++) Depth: 12 00:00:00 1310kN
17.Na3 0-0
= (0.18 --) Depth: 12 00:00:00 1324kN
17.Na3 0-0 18.Nc4 Bxd5 19.Qxd5 Be7 20.Ne3 Ne6 21.g3 a5 22.Rc4 Nc5 23.Be2 g6 24.0-0 Rb8
= (0.22) Depth: 12 00:00:00 1359kN
17.Na3 Bxd5
= (0.15 --) Depth: 13 00:00:00 1647kN
17.Nce3 0-0 18.Rb6
= (0.29 ++) Depth: 13 00:00:00 1666kN
17.Nce3 0-0 18.Rb6
+/= (0.36 ++) Depth: 13 00:00:00 1674kN
17.Nce3 0-0 18.Rb6 Bxd5 19.Nxd5 Nxe4 20.Qf3 Ng5 21.Qf5 a5 22.Bb5 Kh8 23.0-0 Be7 24.Qc2 Rb8
+/= (0.43) Depth: 13 00:00:00 1700kN
17.Nce3 0-0
+/= (0.36 --) Depth: 14 00:00:00 1983kN
17.Nce3 0-0 18.Rb6 Bg5 19.Nc4 Bxd5 20.exd5 Be7 21.Rc6 a5 22.Be2 Rb8 23.g3 g6 24.0-0 Kg7 25.Qa1 f5 26.Nxa5
+/= (0.36) Depth: 14 00:00:00 2174kN
17.Nce3 0-0 18.Rb6
+/= (0.43 ++) Depth: 15 00:00:00 2298kN
17.Nce3 0-0 18.Rb6 a5 19.Nc4 Bxd5 20.Qxd5 Be7 21.Be2 Nd7 22.Rc6 Nf6 23.Qd3 Qd7 24.Rb6 Rad8 25.b3 a4 26.0-0 axb3
+/= (0.39) Depth: 15 00:00:00 2492kN
17.Nce3 0-0
+/= (0.32 --) Depth: 16 00:00:00 2847kN
17.Nce3 0-0 18.Rb6
+/= (0.39 ++) Depth: 16 00:00:00 3348kN
17.Nce3 0-0 18.Rb6
+/= (0.49 ++) Depth: 16 00:00:00 4574kN
17.Nce3 0-0
+/= (0.38 --) Depth: 16 00:00:00 4807kN
17.Nce3 0-0 18.Rb6 a5 19.Nc4 Bxd5 20.Qxd5 Be7 21.g3 Nd7 22.Rb5 Nf6 23.Qd3 Qc7 24.Nb6 Rab8 25.Nd5 Nxd5 26.Qxd5 Kh8
+/= (0.38) Depth: 16 00:00:00 4851kN
17.Nce3 0-0 18.Rb6
+/= (0.45 ++) Depth: 17 00:00:01 7799kN
17.Nce3 0-0
+/= (0.38 --) Depth: 17 00:00:01 7969kN
17.Nce3 0-0 18.Rb6
+/= (0.45 ++) Depth: 17 00:00:01 8571kN
17.Nce3 0-0
+/= (0.36 --) Depth: 17 00:00:01 8757kN
17.Nce3 0-0 18.Rb6
+/= (0.48 ++) Depth: 17 00:00:01 9736kN
17.Nce3 0-0 18.Rb6 Bg5 19.Nc4 Bxd5 20.exd5 Be7 21.Rc6 a5 22.Be2 Ne4 23.0-0 g6 24.g3 Rb8 25.Bf3 Nc5 26.Bg2 Rb3 27.Re1
+/= (0.48) Depth: 17 00:00:01 10279kN
17.Nce3 0-0
+/= (0.41 --) Depth: 18 00:00:01 10448kN
17.Nce3 0-0
+/= (0.34 --) Depth: 18 00:00:01 11380kN
17.Nce3 0-0 18.Rb6
+/= (0.41 ++) Depth: 18 00:00:01 11746kN
17.Nce3 0-0 18.Rb6 Bg5 19.Nc4 Bxd5 20.exd5 Be7 21.Rc6 e4 22.b4 Nd7 23.Nxd6 Ne5 24.Nb7 Qb8 25.Na5 Nxc6 26.Nxc6 Qd6 27.Bc4 Bf6 28.Qc2 Rfe8 29.0-0
+/= (0.49) Depth: 18 00:00:01 12115kN
17.Nce3 0-0
+/= (0.42 --) Depth: 19 00:00:01 12850kN
17.Nce3 0-0
+/= (0.35 --) Depth: 19 00:00:02 19737kN
17.Nce3 0-0 18.Rb6 Bg5 19.Nc4 Bxd5 20.exd5 e4 21.Be2 Be7 22.Rc6 Nd7 23.Qa1 a5 24.0-0 f5 25.Qa3 Rf6 26.f3 Nb8 27.Rb6 Nd7 28.Rb7 Nc5 29.Rb5 a4
+/= (0.34) Depth: 19 00:00:02 20159kN
17.Nce3 0-0 18.Rb6 Bg5 19.Nc4 Bxd5 20.exd5 e4 21.Be2 Be7 22.Rc6 Nd7 23.Qa1 a5 24.0-0 f5 25.Qa3 Rf6 26.f3 Nb8 27.Rb6 Nd7 28.Rb7 Nc5 29.Rb5 a4
+/= (0.34) Depth: 20 00:00:02 22033kN
17.Nce3 0-0 18.Rb6
+/= (0.41 ++) Depth: 21 00:00:02 25618kN
17.Nce3 0-0
+/= (0.34 --) Depth: 21 00:00:02 27596kN
17.Nce3 0-0 18.Rb6
+/= (0.41 ++) Depth: 21 00:00:03 35559kN
17.Nce3 0-0
+/= (0.32 --) Depth: 21 00:00:03 36825kN
17.Nce3 0-0 18.Rb6 a5 19.Nc4 Bxd5 20.Qxd5 Be7 21.Rb5 a4 22.g3 Ne6 23.Rb7 Nc5 24.Rb4 Nxe4 25.Bg2 Nc5 26.Qxa8 Qxa8 27.Bxa8 Nd3+ 28.Kd2 Nxb4 29.Bg2 Na6 30.Kc2 Nc5
= (0.19) Depth: 21 00:00:05 56909kN
17.Nce3 0-0 18.Rb6
= (0.26 ++) Depth: 22 00:00:05 62616kN, tb=5
17.Nce3 0-0 18.Rb6
+/= (0.33 ++) Depth: 22 00:00:05 63172kN, tb=5
17.Nce3 0-0
= (0.26 --) Depth: 22 00:00:06 69896kN, tb=5
17.Nce3 0-0 18.Rb6
+/= (0.34 ++) Depth: 22 00:00:06 73800kN, tb=5
17.Nce3 0-0 18.Rb6 a5 19.f3 Bg5 20.Nc4 Bxd5 21.Qxd5 Be7 22.Be2 a4 23.0-0 a3 24.bxa3 Rxa3 25.Qd2 Ra7 26.g3 Ne6 27.Rfb1 Qc7 28.Kg2 Rc8 29.h4 g6 30.Nxd6 Qxc3 31.Qxc3
+/= (0.43) Depth: 22 00:00:07 80809kN, tb=5
17.Nce3 0-0
+/= (0.36 --) Depth: 23 00:00:07 84548kN, tb=5
17.Nce3 0-0
= (0.29 --) Depth: 23 00:00:07 88966kN, tb=5
17.Nce3 0-0 18.Rb6
+/= (0.36 ++) Depth: 23 00:00:08 100MN, tb=5
17.Nce3 0-0 18.Rb6 a5 19.f3 Bg5 20.Nc4 Bxd5 21.Qxd5 Be7 22.Be2 a4 23.0-0 a3 24.bxa3 Rxa3 25.Qd2 Qc7 26.Rfb1 Ra7 27.g3 h6 28.R6b4 Qc6 29.Kg2 Rd8 30.Qd5 Qxd5 31.exd5 Ra2 32.R1b2
+/= (0.31) Depth: 23 00:00:09 111MN, tb=5
17.Nce3 0-0 18.Rb6
+/= (0.38 ++) Depth: 24 00:00:11 126MN, tb=15
17.Nce3 0-0
+/= (0.31 --) Depth: 24 00:00:11 132MN, tb=15
17.Nce3 0-0
= (0.21 --) Depth: 24 00:00:13 158MN, tb=15
17.Nce3 0-0 18.Rb6
= (0.29 ++) Depth: 24 00:00:14 168MN, tb=15
17.Nce3 0-0 18.Rb6 a5 19.f3 Rb8 20.Nxf6+ Qxf6 21.Bc4 Qg5 22.Qe2 Qd8 23.Rb5 Ra8 24.Bd5 Ba6 25.Bxa8 Bxb5 26.Qxb5 Qxa8 27.0-0 Qa7 28.Qe2 a4 29.Rd1 a3 30.bxa3 Na4 31.Qe1 Rc8 32.Rxd6 Nxc3
= (0.28) Depth: 24 00:00:16 187MN, tb=15
17.Nce3 0-0
= (0.21 --) Depth: 25 00:00:17 202MN, tb=15
17.Nce3 0-0 18.Rb6 a5 19.Nc4 Bxd5 20.exd5 Be7 21.Rc6 Na6 22.Be2 Nb8 23.Rb6 Nd7 24.Rb5 Qc7 25.g3 f5 26.Qc2 e4 27.0-0 a4 28.Rb4 Qa7 29.Qd2 Nc5 30.Kg2 Nb3 31.Qe3 Qxe3 32.fxe3 g6
= (0.17) Depth: 25 00:00:21 248MN, tb=15
17.Nce3 0-0 18.Rb6 a5 19.Nc4 Bxd5 20.exd5 Be7 21.Rc6 Na6 22.Bd3 Nb8 23.Rb6 Nd7 24.Rb5 f5 25.Be2 Qc7 26.0-0 e4 27.Qc2 a4 28.g3 Rfb8 29.Rxb8+ Qxb8 30.Kg2 Qb3 31.Ne3 Qxc2 32.Nxc2 Nf6 33.Ra1
= (0.15) Depth: 26 00:00:25 303MN, tb=19
17.Nce3 0-0 18.Rb6
= (0.22 ++) Depth: 27 00:00:28 342MN, tb=20
17.Nce3 0-0 18.Rb6
= (0.29 ++) Depth: 27 00:00:33 401MN, tb=20
17.Nce3 0-0
= (0.22 --) Depth: 27 00:00:35 420MN, tb=20
17.Nce3 0-0 18.Rb6 a5 19.f3 Rb8 20.Nxf6+ Qxf6 21.Rxd6 Qg5 22.Qd2 Bxe4 23.Nc4 Qe7 24.Qe3 Nb7 25.Rd2 Bg6 26.Be2 f6 27.Kf2 Bf7 28.Rhd1 Qc7 29.Rd7 Qc6 30.Qb6 Qxb6+ 31.Nxb6 Nc5 32.R7d6 Bb3 33.R1d2 Nb7 34.Rc6 Nd8 35.Rc8 Rxb6
= (0.15) Depth: 27 00:00:38 459MN, tb=20
17.Nce3 0-0 18.Rb6
= (0.22 ++) Depth: 28 00:00:42 508MN, tb=27
17.Nce3 0-0 18.Nc4 a5 19.Rb6 Bxd5 20.exd5 Be7 21.Rc6 Na6 22.Nb6 Rb8 23.Na4 Nc7 24.Be2 Ne8 25.0-0 Nf6 26.g3 Nd7 27.f3 g6 28.Kg2 Kg7 29.Re1 f5 30.Bc4 Re8 31.b3 Nf6 32.Qd2 e4 33.Qd4
= (0.25) Depth: 28 00:00:50 622MN, tb=28
17.Nce3 0-0
= (0.18 --) Depth: 29 00:00:54 681MN, tb=28
17.Nce3 0-0 18.Rb6
= (0.25 ++) Depth: 29 00:01:07 867MN, tb=32



With max dynanism:

Analysis by Komodo 9.4 64-bit MD:

17.Rxb7 Nxb7 18.Nxf6+
+/- (1.41 ++) Depth: 7 00:00:00 75kN
17.Rxb7 Nxb7 18.Nxf6+
+/- (1.59 ++) Depth: 7 00:00:00 78kN
17.Rxb7 Nxb7
+/- (1.41 --) Depth: 7 00:00:00 80kN
17.Rxb7 Nxb7 18.Nxf6+ Qxf6 19.Qd5 0-0 20.Qxb7 Rfb8 21.Qd5
+/- (1.41) Depth: 7 00:00:00 85kN
17.Rxb7 Nxb7 18.Nxf6+
+- (2.08 ++) Depth: 8 00:00:00 90kN
17.Rxb7 Nxb7
+/- (1.40 --) Depth: 8 00:00:00 103kN
17.Rxb7 Nxb7
+/- (1.28 --) Depth: 8 00:00:00 108kN
17.Rxb7 Nxb7
+/- (1.11 --) Depth: 8 00:00:00 109kN
17.Bc4 Bxd5
+/- (1.12 --) Depth: 8 00:00:00 116kN
17.Bc4 Bxd5 18.Bxd5 a5 19.Bxa8 Qxa8 20.Qxd6 axb4 21.Qxc5 Qxe4+
+/- (1.08) Depth: 8 00:00:00 149kN
17.Rxb7 Nxb7 18.b4
+/- (1.33 ++) Depth: 8 00:00:00 150kN
17.Rxb7 Nxb7 18.b4 0-0 19.Bc4 g6 20.0-0 Kg7 21.Qd3 Bg5
+/- (1.43) Depth: 8 00:00:00 155kN
17.Rxb7 Nxb7
+/- (1.33 --) Depth: 9 00:00:00 177kN
17.Bc4 Bxd5
+/- (1.36 --) Depth: 9 00:00:00 182kN
17.Bc4 Bxd5
+/- (1.28 --) Depth: 9 00:00:00 199kN
17.Bc4 Bxd5
+/- (1.18 --) Depth: 9 00:00:00 219kN
17.Bc4 Bxd5
+/- (1.03 --) Depth: 9 00:00:00 230kN
17.Bc4 Bxd5
+/- (0.81 --) Depth: 9 00:00:00 248kN
17.Rxb7 Nxb7 18.Bd3 Nc5 19.Nce3 0-0 20.0-0 Bg5 21.b4 Nxd3
+/- (0.99) Depth: 9 00:00:00 256kN
17.Rxb7 Nxb7
+/- (0.92 --) Depth: 10 00:00:00 270kN
17.Rxb7 Nxb7 18.b4
+/- (1.03 ++) Depth: 10 00:00:00 299kN
17.Rxb7 Nxb7 18.b4
+/- (1.13 ++) Depth: 10 00:00:00 309kN
17.Rxb7 Nxb7
+/- (1.00 --) Depth: 10 00:00:00 315kN
17.Rxb7 Nxb7 18.b4
+/- (1.16 ++) Depth: 10 00:00:00 322kN
17.Rxb7 Nxb7 18.b4 0-0 19.Bd3 a5 20.Nce3 axb4 21.cxb4 g6 22.0-0 Bg5 23.g3
+/- (1.23) Depth: 10 00:00:00 334kN
17.Rxb7 Nxb7
+/- (1.16 --) Depth: 11 00:00:00 344kN
17.Rxb7 Nxb7
+/- (1.09 --) Depth: 11 00:00:00 360kN
17.Rxb7 Nxb7
+/- (0.99 --) Depth: 11 00:00:00 382kN
17.Rxb7 Nxb7 18.Be2
+/- (1.07 ++) Depth: 11 00:00:00 396kN
17.Rxb7 Nxb7 18.Be2 0-0 19.b4 a5 20.0-0 Kh8 21.Bd3 Bg5 22.g3 axb4 23.cxb4 Rc8 24.Nce3
+/- (1.16) Depth: 11 00:00:00 407kN
17.Rxb7 Nxb7 18.Be2
+/- (1.23 ++) Depth: 12 00:00:00 436kN
17.Rxb7 Nxb7 18.Be2
+/- (1.30 ++) Depth: 12 00:00:00 448kN
17.Rxb7 Nxb7 18.Be2
+/- (1.41 ++) Depth: 12 00:00:00 462kN
17.Rxb7 Nxb7 18.b4 0-0 19.Be2 a5 20.0-0 Bg5 21.g3 axb4 22.cxb4 f5 23.h4 Bh6 24.Bd3
+/- (1.40) Depth: 12 00:00:00 489kN
17.Rxb7 Nxb7
+/- (1.32 --) Depth: 13 00:00:00 582kN
17.Bc4 Bxd5
+/- (1.33 --) Depth: 13 00:00:00 591kN
17.Bc4 Bxd5
+/- (1.26 --) Depth: 13 00:00:00 806kN
17.Rxb7 Nxb7 18.b4 0-0 19.Be2 Kh8 20.g3 a5 21.0-0 axb4 22.cxb4 Bg5 23.Bb5 Ra2 24.Qb1 Ra8 25.h4
+/- (1.35) Depth: 13 00:00:00 891kN
17.Rxb7 Nxb7
+/- (1.28 --) Depth: 14 00:00:00 985kN
17.Rxb7 Nxb7
+/- (1.21 --) Depth: 14 00:00:00 1088kN
17.Rxb7 Nxb7 18.b4
+/- (1.28 ++) Depth: 14 00:00:00 1132kN
17.Rxb7 Nxb7 18.b4 0-0 19.Be2 a5 20.0-0 Kh8 21.g3 axb4 22.cxb4 Bg5 23.Bb5 Bh6 24.Qd3 Ra2 25.Bc4 Ra8 26.Nce3 Bxe3
+/- (1.32) Depth: 14 00:00:00 1146kN
17.Rxb7 Nxb7
+/- (1.25 --) Depth: 15 00:00:00 1329kN
17.Rxb7 Nxb7
+/- (1.18 --) Depth: 15 00:00:00 1438kN
17.Rxb7 Nxb7 18.b4
+/- (1.25 ++) Depth: 15 00:00:00 1555kN
17.Rxb7 Nxb7
+/- (1.16 --) Depth: 15 00:00:00 1578kN
17.Rxb7 Nxb7 18.b4 0-0 19.Be2 a5 20.0-0 Bg5 21.g3 Kh8 22.Bb5 a4 23.Na3 Bh6 24.Re1 Qc8 25.Kg2 f5 26.f4
+/- (1.25) Depth: 15 00:00:00 1665kN
17.Rxb7 Nxb7 18.b4 0-0 19.Be2 a5 20.g3 Bg5 21.0-0 Kh8 22.Bb5 axb4 23.cxb4 f5 24.exf5 Qc8 25.h4 Bh6 26.Nb6 Qxf5
+/- (1.22) Depth: 16 00:00:00 2093kN
17.Rxb7 Nxb7
+/- (1.15 --) Depth: 17 00:00:00 2903kN
17.Rxb7 Nxb7
+/- (1.08 --) Depth: 17 00:00:00 3915kN
17.Rxb7 Nxb7 18.b4
+/- (1.24 ++) Depth: 17 00:00:01 8332kN
17.Rxb7 Nxb7 18.b4
+/- (1.39 ++) Depth: 17 00:00:01 8343kN
17.Rxb7 Nxb7 18.b4 0-0 19.Bc4 Bg5 20.Qd3 a5 21.0-0 Kh8 22.g3 Rb8 23.Ra1 Qd7 24.h4 Bh6 25.Nce3 Qh3 26.Nf5 axb4 27.cxb4 Ra8 28.Ba6
+/- (1.39) Depth: 17 00:00:01 8362kN
17.Rxb7 Nxb7 18.b4
+/- (1.46 ++) Depth: 18 00:00:01 8687kN
17.Rxb7 Nxb7 18.b4 0-0 19.Bc4 a5 20.Qd3 Bg5 21.0-0 Kh8 22.g3 Rb8 23.Ra1 Qd7 24.h4 Bh6 25.Nce3 Qh3 26.Nf5 axb4 27.cxb4 Ra8 28.Ba6 Rfc8 29.Nb6
+/- (1.46) Depth: 18 00:00:01 9810kN
17.Rxb7 Nxb7
+/- (1.39 --) Depth: 19 00:00:01 10448kN
17.Rxb7 Nxb7
+/- (1.32 --) Depth: 19 00:00:01 12445kN
17.Rxb7 Nxb7 18.b4 0-0 19.Bc4 a5 20.0-0 Bg5 21.g3 axb4 22.cxb4 Qd7 23.h4 Bh6 24.Nb6 Qc6 25.Nxa8 Qxc4 26.Nb6 Qxe4 27.Nd5 Re8 28.Re1
+/- (1.29) Depth: 19 00:00:01 13217kN
17.Rxb7 Nxb7 18.b4
+/- (1.36 ++) Depth: 20 00:00:01 14029kN
17.Rxb7 Nxb7 18.b4
+/- (1.43 ++) Depth: 20 00:00:01 14913kN
17.Rxb7 Nxb7 18.b4 0-0 19.Bc4 Bg5 20.0-0 Kh8 21.Qd3 a5 22.Rd1 axb4 23.cxb4 Rb8 24.Ne1 f5 25.exf5 Qe8 26.g4 e4 27.Qe2 Nd8 28.b5 Nb7 29.b6 Nc5 30.Bb5
+/- (1.38) Depth: 20 00:00:01 16153kN
17.Rxb7 Nxb7 18.b4
+/- (1.45 ++) Depth: 21 00:00:02 20665kN
17.Rxb7 Nxb7 18.b4
+/- (1.52 ++) Depth: 21 00:00:02 21598kN
17.Rxb7 Nxb7
+/- (1.45 --) Depth: 21 00:00:02 23078kN
17.Rxb7 Nxb7
+/- (1.30 --) Depth: 21 00:00:02 24578kN
17.Rxb7 Nxb7 18.b4 0-0 19.Bc4 Bg5 20.0-0 Kh8 21.g3 a5 22.Qe2 Rb8 23.f4 exf4 24.gxf4 axb4 25.cxb4 Bf6 26.Kh1 g6 27.Rd1 Bg7 28.Nd4 Qd7 29.Qe3 Nd8 30.b5 Ne6
+/- (1.24) Depth: 21 00:00:02 25772kN
17.Rxb7 Nxb7 18.b4 0-0 19.Bc4 Bg5 20.0-0 a5 21.g3 Kh8 22.Qe2 Rb8 23.f4 exf4 24.gxf4 axb4 25.cxb4 Bf6 26.Kh1 g6 27.Rd1 Bg7 28.Nd4 Qd7 29.Qe3 Nd8 30.b5 Ne6 31.Nc6 Nc5
+/- (1.24) Depth: 22 00:00:03 30618kN
17.Rxb7 Nxb7
+/- (1.17 --) Depth: 23 00:00:03 41789kN
17.Rxb7 Nxb7 18.b4
+/- (1.24 ++) Depth: 23 00:00:05 56421kN
17.Rxb7 Nxb7 18.b4
+/- (1.34 ++) Depth: 23 00:00:05 61337kN
17.Rxb7 Nxb7 18.b4
+/- (1.49 ++) Depth: 23 00:00:06 73577kN
17.Rxb7 Nxb7
+/- (1.37 --) Depth: 23 00:00:06 74082kN
17.Rxb7 Nxb7 18.b4 0-0 19.Nce3 Bg5 20.Nc4 a5 21.Bd3 Kh8 22.0-0 axb4 23.cxb4 Ra2 24.g3 Qd7 25.Qb1 Ra7 26.Rd1 Rb8 27.Be2 Qh3 28.Bf1 Qe6 29.h4 Bd8 30.Qd3 Ra2 31.Nce3 Rba8 32.Qb1
+/- (1.42) Depth: 23 00:00:06 74870kN
17.Rxb7 Nxb7
+/- (1.35 --) Depth: 24 00:00:07 78727kN
17.Rxb7 Nxb7
+/- (1.28 --) Depth: 24 00:00:07 87234kN
17.Rxb7 Nxb7 18.b4 0-0 19.Nce3 a5 20.Bd3 Bg5 21.Nc4 axb4 22.cxb4 Kh8 23.Ncb6 Ra2 24.Qb1 Ra7 25.g3 Qe8 26.h4 Bd8 27.Nc4 Qe6 28.Nce3 Ra3 29.Bc4 g6 30.Qb2 Ra7 31.0-0 f5 32.exf5
+/- (1.28) Depth: 24 00:00:08 95434kN
17.Rxb7 Nxb7
+/- (1.21 --) Depth: 25 00:00:10 119MN
17.Rxb7 Nxb7 18.b4
+/- (1.28 ++) Depth: 25 00:00:16 183MN
17.Rxb7 Nxb7
+/- (1.21 --) Depth: 25 00:00:16 188MN
17.Rxb7 Nxb7 18.b4 0-0 19.Bd3 a5 20.Nce3 axb4 21.cxb4 Bg5 22.Nc4 Ra2 23.g3 Kh8 24.h4 Bh6 25.0-0 Qd7 26.Kg2 Qe6 27.Ncb6 Rb8 28.Bb5 Qg6 29.Qb1 Rd2 30.Ne7 Qe6 31.Nc6 Re8 32.Bc4
+/- (1.24) Depth: 25 00:00:17 196MN
17.Rxb7 Nxb7 18.b4
+/- (1.31 ++) Depth: 26 00:00:19 227MN
17.Rxb7 Nxb7
+/- (1.24 --) Depth: 26 00:00:20 236MN
17.Rxb7 Nxb7
+/- (1.14 --) Depth: 26 00:00:23 275MN
17.Rxb7 Nxb7 18.b4
+/- (1.22 ++) Depth: 26 00:00:26 309MN
17.Rxb7 Nxb7 18.b4 0-0 19.Bd3 a5 20.Nce3 axb4 21.cxb4 Bg5 22.Nc4 Kh8 23.0-0 Ra2 24.g3 Qd7 25.Kg2 Qe6 26.Nc3 Raa8 27.Nb6 Ra7 28.Be2 d5 29.Nbxd5 Nd6 30.b5 Ra5 31.b6 Rc5 32.h4 Be7 33.Bg4 f5 34.Bxf5
+/- (1.20) Depth: 26 00:00:27 320MN
17.Rxb7 Nxb7
+/- (1.13 --) Depth: 27 00:00:30 366MN, tb=7
17.Rxb7 Nxb7 18.b4
+/- (1.20 ++) Depth: 27 00:00:36 443MN, tb=7
17.Rxb7 Nxb7
+/- (1.13 --) Depth: 27 00:00:38 465MN, tb=7
17.Rxb7 Nxb7 18.b4
+/- (1.21 ++) Depth: 27 00:00:41 514MN, tb=7
17.Rxb7 Nxb7 18.b4 0-0 19.Bc4 Bg5 20.Qd3 a5 21.0-0 Kh8 22.g3 g6 23.f4 axb4 24.cxb4 Bh6 25.f5 Qb8 26.Kg2 Nd8 27.Ne7 Qc7 28.Bd5 Qxe7 29.Bxa8 gxf5 30.Rxf5 Ne6 31.Bd5 Rg8 32.Bxe6 fxe6 33.Rf1 Qc7 34.Rf6 Rg6 35.Rxg6 hxg6 36.b5
+/- (1.12) Depth: 27 00:00:56 714MN, tb=7
17.Rxb7 Nxb7 18.b4
+/- (1.19 ++) Depth: 28 00:01:06 863MN, tb=7
17.Rxb7 Nxb7 18.b4
+/- (1.26 ++) Depth: 28 00:01:08 880MN, tb=7
17.Rxb7 Nxb7
+/- (1.19 --) Depth: 28 00:01:10 920MN, tb=8

Max dynanism not needed for that Kasparov position. Dynanism 125 seems to prefer Kasparov's move as well but as you can see from this clipped analysis D125 is a bit more hesitant about 17.Rxb7 than D200:

r2qk2r/1b3ppp/p2p1b2/2nNp3/1R2P3/2P5/1PN2PPP/3QKB1R w Kkq - 0 1

Analysis by Komodo 9.4 64-bit D125:

17.Nxf6+ Qxf6 18.Rxb7
+/- (1.43 ++) Depth: 7 00:00:00 303kN
17.Nxf6+ Qxf6
+/- (1.21 --) Depth: 7 00:00:00 306kN
17.Nxf6+ Qxf6 18.Rxb7
+/- (1.54 ++) Depth: 7 00:00:00 315kN
17.Nxf6+ Qxf6
+/- (1.24 --) Depth: 7 00:00:00 320kN
17.Nxf6+ Qxf6
+/- (0.94 --) Depth: 7 00:00:00 326kN
17.Nxf6+ Qxf6
+/= (0.57 --) Depth: 7 00:00:00 330kN
17.Nxf6+ gxf6 18.Rxb7
+/- (1.02 ++) Depth: 7 00:00:00 338kN
17.Nxf6+ Qxf6
+/= (0.50 --) Depth: 7 00:00:00 345kN
17.Nxf6+ Qxf6 18.Rxb7 Nxb7 19.Qd5 0-0 20.Qxb7 Rab8 21.Qd5
= (0.17) Depth: 7 00:00:00 358kN
17.Rxb7 Nxb7 18.b4 0-0 19.Bc4 a5 20.0-0 axb4
+/= (0.43) Depth: 7 00:00:00 369kN
17.Rxb7 Nxb7
+/= (0.36 --) Depth: 8 00:00:00 385kN
17.Rxb7 Nxb7
= (0.29 --) Depth: 8 00:00:00 397kN
17.Rxb7 Nxb7 18.b4 0-0 19.Be2 Bg5 20.0-0 f5 21.exf5
= (0.21) Depth: 8 00:00:00 429kN
17.Rxb7 Nxb7 18.g3 0-0 19.b4 a5 20.h4 axb4 21.cxb4 Qc8 22.Nce3
= (0.19) Depth: 9 00:00:00 450kN
17.Rxb7 Nxb7 18.g3
= (0.26 ++) Depth: 10 00:00:00 472kN
17.Rxb7 Nxb7 18.g3
+/= (0.33 ++) Depth: 10 00:00:00 476kN
17.Rxb7 Nxb7 18.g3 0-0 19.Bg2 Nc5 20.b4 Ne6 21.0-0 a5 22.Nce3 axb4
+/= (0.32) Depth: 10 00:00:00 508kN
17.Rxb7 Nxb7 18.b4
+/= (0.39 ++) Depth: 11 00:00:00 596kN
17.Rxb7 Nxb7
+/= (0.32 --) Depth: 11 00:00:00 627kN
17.Rxb7 Nxb7 18.b4
+/= (0.43 ++) Depth: 11 00:00:00 659kN
17.Rxb7 Nxb7 18.b4 0-0 19.Be2 a5 20.0-0 g6 21.g3 a4 22.Na3 Kg7 23.Bb5 Bg5
+/= (0.45) Depth: 11 00:00:00 665kN
17.Rxb7 Nxb7
+/= (0.38 --) Depth: 12 00:00:00 723kN
17.Rxb7 Nxb7
+/= (0.31 --) Depth: 12 00:00:00 750kN
17.Rxb7 Nxb7
= (0.21 --) Depth: 12 00:00:00 836kN
17.Rxb7 Nxb7 18.g3 0-0 19.Bg2 a5 20.b4 a4 21.Na3 g6 22.0-0 Bg7 23.h4 Kh8
= (0.21) Depth: 12 00:00:00 950kN
17.Rxb7 Nxb7 18.g3
= (0.28 ++) Depth: 13 00:00:00 1068kN
17.Rxb7 Nxb7 18.b4
+/= (0.35 ++) Depth: 13 00:00:00 1123kN
17.Rxb7 Nxb7 18.b4
+/= (0.45 ++) Depth: 13 00:00:00 1179kN
17.Rxb7 Nxb7
+/= (0.36 --) Depth: 13 00:00:00 1268kN
17.Rxb7 Nxb7 18.b4 0-0 19.g3 a5 20.Bc4 Bg5 21.h4 Bh6 22.0-0 axb4 23.cxb4 Kh8 24.Re1 g6 25.Qf3
+/= (0.35) Depth: 13 00:00:00 1310kN
17.Rxb7 Nxb7
= (0.28 --) Depth: 14 00:00:00 1478kN
17.Nce3 0-0 18.Rb6
+/= (0.42 ++) Depth: 14 00:00:00 1887kN
17.Nce3 0-0 18.Rb6
+/= (0.49 ++) Depth: 14 00:00:00 1922kN
17.Nce3 0-0 18.Rb6
+/= (0.59 ++) Depth: 14 00:00:00 2490kN
17.Nce3 0-0 18.Rb6 a5 19.g3 Kh8 20.Nc4 Be7 21.Be2 f5 22.Nxe7 Qxe7 23.Qxd6 Qxd6 24.Nxd6 Bxe4 25.0-0 g6
+/= (0.61) Depth: 14 00:00:00 2795kN
17.Nce3 0-0
+/= (0.54 --) Depth: 15 00:00:00 2855kN
17.Nce3 0-0
+/= (0.47 --) Depth: 15 00:00:00 2954kN
17.Nce3 0-0
+/= (0.37 --) Depth: 15 00:00:00 3270kN
17.Nce3 0-0 18.Rb6
+/= (0.45 ++) Depth: 15 00:00:00 3479kN
17.Nce3 0-0
+/= (0.33 --) Depth: 15 00:00:00 3513kN
17.Nce3 0-0 18.Rb6
+/= (0.50 ++) Depth: 15 00:00:00 3639kN
17.Nce3 0-0 18.Rb6 Bg5 19.Nc4 Bxd5 20.exd5 Qf6 21.Rxd6 Qf4 22.Be2 Ne4 23.0-0 Nxd6 24.Nxd6 e4 25.Nc4 Qf5 26.Bg4 Qf4
+/= (0.38) Depth: 15 00:00:00 3729kN
17.Bc4 a5 18.Rxb7 Nxb7 19.b4 0-0 20.0-0 Bg5 21.Qd3 Rb8 22.g3 Kh8 23.Ra1 Qc8 24.Kg2 axb4 25.cxb4 h6 26.Nce3
+/= (0.64) Depth: 15 00:00:01 6447kN
17.Bc4 a5
+/= (0.57 --) Depth: 16 00:00:01 6720kN
17.Bc4 a5
+/= (0.50 --) Depth: 16 00:00:01 6921kN
17.Bc4 a5 18.Rxb7 Nxb7 19.b4 0-0 20.0-0 Bg5 21.Qd3 Kh8 22.g3 Rb8 23.Ra1 Qd7 24.h4 Bh6 25.Ba6 axb4 26.cxb4 Qh3 27.Qf3
+/= (0.43) Depth: 16 00:00:01 7867kN
17.Bc4 a5 18.Rxb7
+/= (0.50 ++) Depth: 17 00:00:01 8471kN
17.Bc4 a5
+/= (0.43 --) Depth: 17 00:00:01 11566kN
17.Rxb7 Nxb7 18.b4
+/= (0.57 ++) Depth: 17 00:00:01 11582kN
17.Rxb7 Nxb7 18.b4 0-0 19.Bc4 a5 20.0-0 Bg5 21.Qd3 Kh8 22.g3 axb4 23.cxb4 Rb8 24.Ra1 Qd7 25.h4 Bh6 26.Kg2 f5 27.exf5 Qxf5
+/= (0.61) Depth: 17 00:00:01 11835kN
17.Rxb7 Nxb7
+/= (0.54 --) Depth: 18 00:00:01 12338kN
17.Rxb7 Nxb7 18.b4 Bg5 19.Bc4 0-0 20.0-0 a5 21.Qd3 Kh8 22.g3 axb4 23.cxb4 Ra7 24.Nce3 Qd7 25.Nf5 g6 26.Bb5 Qc8 27.Nfe3 f5 28.f4 Bd8 29.fxe5
+/= (0.56) Depth: 18 00:00:01 14045kN
17.Rxb7 Nxb7 18.b4 0-0 19.Bc4 a5 20.Qd3 Bg5 21.0-0 Kh8 22.Rd1 Rb8 23.Nce3 Bxe3 24.Nxe3 axb4 25.cxb4 Qd7 26.Qd5 Nd8 27.b5 Ne6 28.Nf5
+/= (0.50) Depth: 19 00:00:01 16034kN
17.Rxb7 Nxb7
+/= (0.43 --) Depth: 20 00:00:01 16903kN
17.Rxb7 Nxb7 18.b4 0-0 19.Bc4 a5 20.Qd3 Bg5 21.0-0 Rb8 22.Bb5 Kh8 23.g3 g6 24.Rd1 axb4 25.cxb4 f5 26.exf5 gxf5 27.Nce3 Bxe3 28.Nxe3 Qf6 29.Bd7 e4
+/= (0.40) Depth: 20 00:00:02 22534kN
17.Rxb7 Nxb7
+/= (0.33 --) Depth: 21 00:00:03 38577kN
17.Rxb7 Nxb7 18.b4
+/= (0.40 ++) Depth: 21 00:00:04 43808kN
17.Rxb7 Nxb7 18.b4 0-0 19.Nce3 Bg5 20.Nc4 a5 21.Bd3 axb4 22.cxb4 Kh8 23.g3 Qe8 24.h4 Bh6 25.0-0 Rc8 26.Be2 g6 27.Ndb6 Rc6 28.b5 Rc7 29.Nxd6 Qe6
+/= (0.37) Depth: 21 00:00:04 46733kN
17.Rxb7 Nxb7 18.b4
+/= (0.44 ++) Depth: 22 00:00:04 48830kN
17.Rxb7 Nxb7
+/= (0.37 --) Depth: 22 00:00:05 53162kN
17.Rxb7 Nxb7 18.b4
+/= (0.44 ++) Depth: 22 00:00:05 61105kN, tb=1
17.Rxb7 Nxb7 18.b4 0-0 19.Bd3 a5 20.Nce3 Bg5 21.Nc4 axb4 22.cxb4 Ra7 23.g3 Kh8 24.0-0 Qd7 25.h4 Bh6 26.Kg2 Qe6 27.Ncb6 Nd8 28.b5 Nb7 29.Nb4 Nc5
+/= (0.48) Depth: 22 00:00:06 62520kN, tb=1
17.Rxb7 Nxb7
+/= (0.41 --) Depth: 23 00:00:06 66872kN, tb=1
17.Rxb7 Nxb7
+/= (0.34 --) Depth: 23 00:00:08 85861kN, tb=1
17.Bc4 0-0 18.Rxb7 Nxb7 19.b4 a5 20.g3 Kh8 21.0-0 Rb8 22.Kg2 Bg5 23.Qd3 Qd7 24.f4 exf4 25.gxf4 Bf6 26.Kh1 axb4 27.cxb4 Nd8 28.b5 Ne6 29.Nxf6 gxf6 30.Nb4 Rg8 31.Nd5
+/= (0.43) Depth: 23 00:00:09 104MN, tb=1
17.Bc4 0-0 18.Rxb7 Nxb7 19.b4 a5 20.0-0 Kh8 21.Qd3 Bg5 22.g3 Rb8 23.Kg2 Qd7 24.f4 exf4 25.gxf4 Bf6 26.Kh1 axb4 27.cxb4 Nd8 28.b5 Ne6 29.Nxf6 gxf6 30.Nb4 Rg8 31.Nd5 Nc5 32.Nxf6 Nxd3
+/= (0.43) Depth: 24 00:00:11 126MN, tb=1
17.Bc4 0-0
+/= (0.36 --) Depth: 25 00:00:13 150MN, tb=1
17.g3 0-0 18.Rxb7 Nxb7 19.b4 a5 20.Bc4 Kh8 21.0-0 Bg5 22.Qd3 g6 23.f4 Bh6 24.f5 Rb8 25.Kg2 axb4 26.cxb4 Qc8 27.Qe2 Nd8 28.b5 Nb7 29.Ncb4 Na5 30.Bd3 gxf5 31.Rxf5 Qc1
+/= (0.40) Depth: 25 00:00:19 217MN, tb=1
17.g3 0-0
+/= (0.33 --) Depth: 26 00:00:31 354MN, tb=2
17.g3 0-0 18.Rxb7 Nxb7 19.b4 Bg5 20.h4 Bh6 21.Na3 a5 22.Nc4 axb4 23.cxb4 Qe8 24.Ncb6 Ra7 25.Bc4 Kh8 26.0-0 g6 27.Qf3 f5 28.exf5 Rxf5 29.Qe2 Rf8 30.Rd1 Qf7 31.Nc3 Qf3 32.Qxf3 Rxf3 33.Ne4 Rfa3 34.Bd5
+/= (0.33) Depth: 26 00:00:38 431MN, tb=2
17.Rxb7 Nxb7 18.b4 Bg5 19.Bd3 0-0 20.Na3 a5 21.Nc4 Kh8 22.0-0 axb4 23.cxb4 Ra7 24.g3 Qe8 25.Kg2 Qe6 26.h4 Bh6 27.Ncb6 Nd8 28.b5 Nb7 29.Nc7 Qg6 30.Na6 Nd8 31.Nd5 Ne6 32.b6 Rb7 33.Nac7 Nd4 34.Nb5 Nxb5
+/= (0.34) Depth: 26 00:00:38 431MN, tb=2
17.Rxb7 Nxb7 18.b4 Bg5 19.Bd3 0-0 20.Na3 a5 21.Nc4 Kh8 22.0-0 axb4 23.cxb4 Ra7 24.g3 Qe8 25.Kg2 Qe6 26.h4 Bh6 27.Ncb6 Nd8 28.b5 Nb7 29.Nc7 Qg6 30.Na6 Nd8 31.Nd5 Ne6 32.b6 Rb7 33.Nac7 Nd4 34.Nb5 Nxb5
+/= (0.34) Depth: 27 00:00:39 442MN, tb=2
17.Rxb7 Nxb7 18.b4
+/= (0.41 ++) Depth: 28 00:01:08 815MN, tb=6
17.Rxb7 Nxb7
+/= (0.34 --) Depth: 28 00:01:09 826MN, tb=6
17.Nce3 0-0 18.Rxb7 Nxb7 19.b4 Bg5 20.Nc4 a5 21.Ncb6 axb4 22.cxb4 Ra7 23.Bb5 f5 24.exf5 Kh8 25.0-0 Rxf5 26.Bd3 Rf8 27.Be4 Qe8 28.Qe2 g6 29.g3 Qe6 30.Nc4 Nd8 31.h4 Bh6 32.Ndb6 Qf6 33.Qd3 Ne6 34.Qxd6 Nd4
+/= (0.41) Depth: 28 00:01:31 1133MN, tb=17
17.Nce3 0-0
+/= (0.34 --) Depth: 29 00:01:54 1456MN, tb=32
17.Nce3 0-0 18.Rxb7
+/= (0.41 ++) Depth: 29 00:02:05 1604MN, tb=39
17.Nce3 0-0
+/= (0.34 --) Depth: 29 00:02:17 1775MN, tb=51
17.Rxb7 Nxb7 18.b4 Bg5 19.Na3 0-0 20.Nc4 a5 21.Ncb6 axb4 22.cxb4 Ra7 23.Bb5 f5 24.exf5 Kh8 25.0-0 Rxf5 26.Bd3 Rf8 27.g3 Qe8 28.Be4 g6 29.Nc3 Nd8 30.Qxd6 Nf7 31.Qd5 Bd8 32.Nc4 Rd7 33.Qa8 Nd6 34.Nxd6
+/= (0.38) Depth: 29 00:02:18 1789MN, tb=51
17.Rxb7 Nxb7
+/= (0.31 --) Depth: 30 00:02:29 1950MN, tb=51
17.Rxb7 Nxb7 18.b4
+/= (0.38 ++) Depth: 30 00:02:44 2156MN, tb=54
17.Rxb7 Nxb7 18.b4 Bg5 19.Na3 0-0 20.Nc4 a5 21.Ncb6 axb4 22.cxb4 Ra7 23.Bb5 f5 24.exf5 Rxf5 25.0-0 Kh8 26.g3 Rf7 27.h4 Bh6 28.Nc4 g6 29.Nc3 Rc7 30.Qd5 Qb8 31.Ne4 Bg7 32.Kg2 Qg8 33.Bc6 Qxd5 34.Bxd5 Ra4 35.Rb1
+/= (0.46) Depth: 30 00:02:51 2253MN, tb=64