deep blue 1997 compared to engines of that time

[Uri Blass]

Deep blue did a tactical mistake against kasparov in game 5 that kasparov did not take advantage of it.
43...Nd2 is losing when 43...Rg2 makes a draw

I tried relatively simple program by today standards and it could find 43...Rg2 in less than 10 minutes and I wonder how much time did programs of 1997 need to understand that 43...Rg2 is bad or to choose another move.

Choosing another move is not enough if it does not show a big advantage for white after 43...Nd2
It seems that 43...Rg2 save the game and probably also 43...Ra1+ and 43...Rf2 and 43...Rh2 when the rest of the moves are losing.

Note that after 43...Rg2 kasparov did a mistake by 44.Nf4 when 44.Rg7+ is winning and I wondered when people discovered that 44.Rg7+ is winning because during the match I did not read that kasparov missed a win by 44.Rg7+ but I can see a comment about it in the following link

https://www.chessgames.com/perl/chessgame?gid=1070916

[fen]8/ppk5/6R1/1Pp3PN/4n3/1P4P1/r7/2K5 b - - 0 43[/fen]

Fruit_21:
1/4 00:00 11 44 +0.25 Ra2-a1+ Kc1-c2
1/7 00:00 44 166 +0.56 Ra2-d2 Rg6-g7+ Kc7-b6
1/7 00:00 84 316 +0.61 Ra2-h2 Rg6-g7+ Kc7-d6
1/7 00:00 286 1k +0.70 Kc7-d8
2/7 00:00 377 24k +0.29 Kc7-d8 Rg6-g7
2/7 00:00 451 28k +0.61 Ra2-h2 Rg6-g7+ Kc7-d6
3/9 00:00 939 59k +0.44 Ra2-h2 Rg6-g7+ Kc7-b6 Nh5-f4 Ne4xg3
4/11 00:00 3k 176k +0.13 Ra2-h2 Rg6-g7+ Kc7-b6 Nh5-f6 Ne4-c3
4/11 00:00 4k 244k +0.14 Ra2-f2 Rg6-g7+ Kc7-b6 Nh5-f4 Rf2-d2
4/11 00:00 6k 386k +0.19 Ne4-d6 Nh5-f4 Nd6xb5 Rg6-h6
4/11 00:00 8k 472k +0.40 Ne4-d2 Rg6-g7+ Kc7-b6 Rg7-d7 Nd2xb3+ Kc1-d1
5/14 00:00 12k 729k +0.40 Ne4-d2 Rg6-g7+ Kc7-b6 Kc1-d1 Nd2xb3 Rg7-d7
6/16 00:00 25k 1,573k +0.21 Ne4-d2 Rg6-g7+ Kc7-b6 g5-g6 Nd2xb3+ Kc1-b1 Ra2-h2 Rg7-h7
7/18 00:00 75k 2,419k +0.52 Ne4-d2 Rg6-h6 Nd2xb3+ Kc1-b1 Ra2-d2 g5-g6 c5-c4 g6-g7 Rd2-d8
8/19 00:00 146k 3,102k +0.16 Ne4-d2 Rg6-h6 Nd2xb3+ Kc1-b1 Ra2-f2 g5-g6 Nb3-d2+ Kb1-c1 Kc7-d7 Rh6-h7+ Kd7-c8
9/25 00:00 442k 3,533k 0.00 Ne4-d2 Rg6-g7+ Kc7-c8 Rg7-g8+ Kc8-d7 Rg8-g7+ Kd7-c8
10/25 00:00 896k 3,583k 0.00 Ne4-d2 Rg6-g7+ Kc7-c8 Rg7-g8+ Kc8-d7 Rg8-g7+ Kd7-c8
11/29 00:00 2,379k 3,807k -0.44 Ne4-d2 Rg6-g7+ Kc7-b6 g5-g6 Nd2xb3+ Kc1-b1 Ra2-g2 Rg7-e7 Nb3-d2+ Kb1-c2 Nd2-e4+ Kc2-d3 Ne4xg3 Nh5-f4 Rg2-h2 Nf4-d5+ Kb6xb5 Re7xb7+ Kb5-c6
11/29 00:01 7,208k 3,909k -0.27 Ne4-c3 Nh5-f4 Nc3xb5 Rg6-g7+ Kc7-c8 Nf4-e6 b7-b6 Rg7-h7 Ra2-e2 Ne6-f4 Re2-e3 Kc1-b2 Re3xg3
12/29 00:02 10,406k 3,940k -0.49 Ne4-c3 Rg6-g7+ Kc7-b6 Nh5-f4 Nc3xb5 g5-g6 Ra2-a1+ Kc1-b2 Ra1-g1 Rg7-h7 Rg1xg3 g6-g7 Nb5-d4 Nf4-d5+ Kb6-b5 Nd5-e3
13/31 00:04 16,911k 3,936k -0.51 Ne4-c3 Rg6-g7+ Kc7-b6 Nh5-f4 Nc3xb5 g5-g6 Ra2-a1+ Kc1-b2 Ra1-g1 Rg7-f7 Rg1xg3 g6-g7 Kb6-c6 Nf4-e2 Rg3-g2 Rf7-e7
13/37 00:05 21,580k 3,869k 0.00 Ne4-d2 Rg6-g7+ Kc7-b6 Rg7-d7 Nd2xb3+ Kc1-b1 Ra2-h2 Nh5-f6 c5-c4 g5-g6 Nb3-d2+ Kb1-c1 Nd2-b3+ Kc1-b1
14/37 00:08 34,315k 3,819k 0.00 Ne4-d2 Rg6-g7+ Kc7-b6 Rg7-d7 Nd2xb3+ Kc1-b1 Ra2-h2 Nh5-f6 Nb3-d2+ Kb1-c1 Nd2-b3+ Kc1-b1
15/37 00:15 58,247k 3,781k 0.00 Ne4-d2 Rg6-g7+ Kc7-b6 Rg7-d7 Nd2xb3+ Kc1-b1 Ra2-h2 Nh5-f6 Nb3-d2+ Kb1-c1 Nd2-b3+ Kc1-b1
16/40 00:30 111,667k 3,705k 0.00 Ne4-d2 Rg6-g7+ Kc7-b6 Rg7-d7 Nd2xb3+ Kc1-b1 Ra2-h2 Nh5-f6 Nb3-d2+ Kb1-c1 Nd2-b3+ Kc1-b1
17/50 01:20 293,108k 3,659k -0.25 Ne4-d2 Rg6-f6 Nd2xb3+ Kc1-b1 Ra2-h2 Nh5-f4 Nb3-d2+ Kb1-c1 Nd2-b3+ Kc1-d1 Rh2-h1+ Kd1-e2 Nb3-d4+ Ke2-e3 Rh1-h8 g5-g6 Rh8-g8 b5-b6+ a7xb6 Nf4-d5+ Kc7-d7 Nd5xb6+ Kd7-d8 Nb6-c4 b7-b5
18/50 02:55 640,455k 3,644k -1.53 Ne4-d2 Rg6-g7+ Kc7-b6 g5-g6 Nd2xb3+ Kc1-b1 Ra2-d2 Nh5-f6 c5-c4 Rg7-d7 Rd2-g2 g6-g7 Rg2xg3 g7-g8Q Rg3xg8 Nf6xg8 Nb3-c5 Rd7-e7 Kb6xb5 Ng8-f6 a7-a5 Kb1-c2 b7-b6
18/50 05:05 1,124,915k 3,684k -1.08 Ne4-c3 Rg6-g7+ Kc7-b6 Nh5-f4 Nc3-e2+ Nf4xe2 Ra2xe2 g5-g6 Re2-e3 g3-g4 Re3-e6 Kc1-c2 Kb6-a5 Rg7xb7 Re6xg6 Rb7xa7+ Ka5xb5 Ra7-a4 Rg6-f6 g4-g5 Rf6-f2+ Kc2-c3 Rf2-f3+ Kc3-b2 Rf3-f2+ Kb2-a3
18/50 08:06 1,825,502k 3,754k -0.91 Ra2-d2 Rg6-g7+ Rd2-d7 g5-g6 Rd7xg7 Nh5xg7 Kc7-d7 g3-g4 Kd7-d6 Kc1-c2 b7-b6 Ng7-f5+ Kd6-e6 Kc2-d3 Ne4-f2+ Kd3-c3 Nf2xg4 g6-g7 Ke6-f7 b3-b4 Ng4-e5 b4xc5 b6xc5 Kc3-d2
18/50 08:53 2,010,086k 3,766k -0.54 Ra2-g2 Rg6-g7+ Kc7-b6 g5-g6 Rg2-g1+ Kc1-c2 Ne4xg3 Nh5-f4 Ng3-f5 Rg7-f7 Nf5-h6 Rf7-h7 Nh6-f5 Kc2-d3 Kb6xb5 Rh7xb7+ Kb5-c6 Rb7xa7 Rg1-g3+ Kd3-d2 Rg3xb3 Nf4-d3
19/50 10:10 2,299,045k 3,768k -0.57 Ra2-g2 Rg6-g7+ Kc7-b6 g5-g6 Rg2-g1+ Kc1-c2 Ne4xg3 Nh5-f4 Ng3-f5 Rg7-f7 Nf5-h6 Rf7-f6+ Kb6xb5 g6-g7 c5-c4 Nf4-e6 c4xb3+ Kc2xb3 Rg1-g3+ Kb3-b2 Nh6-g8 Rf6-f7 Kb5-b6 Kb2-c2 Ng8-h6





[Event "IBM Man-Machine"]
[Site "New York, NY USA"]
[Date "1997.05.10"]
[Round "5"]
[White "Garry Kasparov"]
[Black "Deep Blue (Computer)"]
[Result "1/2-1/2"]
[BlackElo "2200"]
[ECO "A07"]
[Opening "Reti Opening"]
[Variation "KIA, Keres Variation, 3.Bg2 Nd7"]
[TimeControl "1200+30"]
[Termination "normal"]
[PlyCount "98"]
[WhiteType "human"]
[BlackType "program"]

1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7 4. h3 Bxf3 5. Bxf3 c6 6. d3 e6 7. e4 Ne5 8.
Bg2 dxe4 9. Bxe4 Nf6 10. Bg2 Bb4+ 11. Nd2 h5 12. Qe2 Qc7 13. c3 Be7 14. d4
Ng6 15. h4 e5 16. Nf3 exd4 17. Nxd4 O-O-O 18. Bg5 Ng4 19. O-O-O Rhe8 20.
Qc2 Kb8 21. Kb1 Bxg5 22. hxg5 N6e5 23. Rhe1 c5 24. Nf3 Rxd1+ 25. Rxd1 Nc4
26. Qa4 Rd8 27. Re1 Nb6 28. Qc2 Qd6 29. c4 Qg6 30. Qxg6 fxg6 31. b3 Nxf2
32. Re6 Kc7 33. Rxg6 Rd7 34. Nh4 Nc8 35. Bd5 Nd6 36. Re6 Nb5 37. cxb5 Rxd5
38. Rg6 Rd7 39. Nf5 Ne4 40. Nxg7 Rd1+ 41. Kc2 Rd2+ 42. Kc1 Rxa2 43. Nxh5
Nd2 44. Nf4 Nxb3+ 45. Kb1 Rd2 46. Re6 c4 47. Re3 Kb6 48. g6 Kxb5 49. g7 Kb4
1/2-1/2

[Uri Blass]

Stockfish claims that earlier in the game deep blue blundered by long castle when kasparov blundered by not castling and I do not understand it.
[fen]2kr3r/ppq1bpp1/2p2nn1/7p/3N3P/2P3P1/PP2QPB1/R1B1K2R w KQ - 1 18[/fen]

Stockfish_22012908_x64_avx2:
NNUE evaluation using nn-ac07bd334b62.nnue enabled
1/1 00:00 805 805k +5.12 Bg2-h3+ Nf6-g4 Bh3xg4+ h5xg4 Qe2xg4+ f7-f5 Qg4xf5+ Rd8-d7
2/2 00:00 1k 1,216k +2.17 Bc1-d2 Nf6-d7
3/3 00:00 2k 1,819k +3.15 O-O Nf6-g4 Bg2-h3
4/4 00:00 5k 2,474k +1.61 O-O Be7-c5 Bc1-g5 Bc5xd4
5/5 00:00 7k 3,441k +1.80 O-O Be7-c5 Bc1-g5 Bc5xd4 c3xd4
6/6 00:00 9k 4,587k +1.80 O-O Be7-c5 Bc1-g5 Bc5xd4 c3xd4
7/7 00:00 18k 4,414k +2.25 Bc1-e3 Nf6-g4 Bg2-h3 Be7-f6 Bh3xg4+ h5xg4 Qe2xg4+ Kc8-b8
8/9 00:00 34k 5,644k +1.72 O-O Be7-c5 b2-b4 Bc5-b6 a2-a4 Bb6xd4 c3xd4
9/9 00:00 51k 6,315k +1.54 O-O Kc8-b8 Qe2-c2 Nf6-d5 b2-b4 a7-a6 a2-a4 Be7xh4 g3xh4 Ng6xh4
10/11 00:00 103k 7,379k +1.90 O-O Kc8-b8 Qe2-c4 Nf6-d5 Qc4-b3 Qc7-b6 a2-a4 Qb6xb3
11/14 00:00 238k 7,206k +2.40 O-O Be7-c5 b2-b4 Bc5-b6 Bc1-g5 Kc8-b8 a2-a4 Bb6xd4 c3xd4
12/17 00:00 413k 7,380k +2.16 O-O Qc7-d7 b2-b4 Nf6-d5 Bc1-b2 Qd7-g4 Qe2xg4+ h5xg4 b4-b5 c6-c5 c3-c4
13/19 00:00 571k 7,612k +2.09 O-O Qc7-d7 Qe2-c2 Nf6-g4 b2-b4 Rh8-e8 Ra1-b1 Be7xh4 b4-b5 c6-c5 Qc2-a4
14/23 00:00 838k 7,617k +2.23 O-O Be7-c5 b2-b4 Bc5xd4 c3xd4 Rd8xd4 b4-b5 Rh8-e8 Bc1-e3 Ng6xh4 Qe2-c2 Re8xe3 f2xe3 Qc7xg3 e3xd4 Nh4xg2 Qc2xg2
15/27 00:00 1,309k 7,655k +2.38 O-O Nf6-g4 Nd4-e6 f7xe6 Qe2xe6+ Kc8-b8 Qe6xg6 Rh8-f8 Qg6xh5 Ng4xf2 Bc1-e3 Nf2-d3 Rf1xf8 Rd8xf8 Qh5-g6
16/25 00:00 2,477k 7,528k +2.09 O-O Be7-c5 b2-b4 Bc5xd4 c3xd4 Rd8xd4 b4-b5 Rh8-e8 Qe2-f3 c6-c5 Qf3-f5+ Kc8-b8 Bc1-b2 Rd4-b4 Bb2xf6 g7xf6 a2-a4 Ng6-e5
17/20 00:00 2,681k 7,325k +2.01 O-O Be7-c5 b2-b4 Bc5xd4 c3xd4 Rd8xd4 b4-b5 Rh8-e8 Qe2-b2 c6-c5 Qb2-a3 Kc8-b8 Bc1-e3 Rd4-b4 Ra1-c1 b7-b6 Be3-d2 Rb4xb5 Qa3-f3
18/31 00:00 3,077k 7,025k +1.94 O-O Nf6-g4 Nd4-e6 f7xe6 Qe2xe6+ Kc8-b8 Qe6xg6 Rh8-f8 Qg6xh5 Ng4xf2 Bc1-e3 Nf2-h3+ Kg1-h2 Rf8-h8 Qh5-g6 Rh8xh4 Bg2xh3 Rd8-h8 Kh2-g2 Rh4xh3 Be3-f4 Rh3-h2+ Kg2-f3 Rh8-f8 Rf1-e1 Kb8-a8 Qg6xg7
19/38 00:00 4,103k 7,148k +2.50 O-O Be7-c5 b2-b4 Bc5xd4 c3xd4 Rd8xd4 b4-b5 Rh8-e8 Qe2-b2 c6-c5 Qb2-a3 Kc8-b8 Bc1-e3 Rd4-b4 Ra1-b1 Rb4xb1 Rf1xb1 b7-b6
20/43 00:00 5,218k 7,339k +2.25 O-O Nf6-g4 Nd4-e6 f7xe6 Qe2xe6+ Kc8-b8 Qe6xg6 Rh8-f8 Qg6xh5 Ng4xf2 Bc1-e3 Nf2-h3+ Kg1-h2 Rf8-h8 Qh5-g6 Rh8xh4 Bg2xh3 Rd8-h8 Be3-f4 Rh4xh3+ Kh2-g1 Be7-c5+ Kg1-g2 Rh3-h2+ Kg2-f3 Rh8-f8 Ra1-e1 Rf8xf4+ g3xf4 a7-a5 b2-b4 a5xb4 c3xb4 Kb8-a7 b4xc5 Qc7-d7 Rf1-g1 Qd7-d5+ Kf3-g4
21/47 00:01 9,686k 7,555k +2.06 O-O Nf6-g4 Nd4-e6 f7xe6 Qe2xe6+ Kc8-b8 Qe6xg6 Rh8-f8 Qg6xh5 Ng4xf2 Bc1-e3 Nf2-h3+ Kg1-h2 Rf8-h8 Qh5-g6 Rh8xh4 Bg2xh3 Rd8-h8 Kh2-g1 Rh4xh3 Be3-f4 Be7-c5+ Kg1-g2 Rh3-h2+ Kg2-f3 Rh8-f8 Ra1-e1 Rf8xf4+ g3xf4 a7-a5 Re1-e8+ Kb8-a7 Qg6-g5 Qc7-b6 Qg5-d8 Qb6xd8 Re8xd8 Rh2xb2 Rd8-d7 a5-a4 Rd7xg7 Rb2xa2
22/48 00:01 10,700k 7,536k +2.36 O-O Nf6-g4 Nd4-e6 f7xe6 Qe2xe6+ Kc8-b8 Qe6xg6 Rh8-f8 Qg6xh5 Ng4xf2 Bc1-f4 Rf8xf4 g3xf4 Nf2-d3 Ra1-d1 Qc7-b6+ Kg1-h2 Qb6xb2 Rd1-b1 Qb2xc3 Qh5-f7 Qc3-c5 Qf7xg7 a7-a5 Rb1-b3 Nd3-b4 Rb3-c3 Qc5-d6 Rc3-h3 Be7-f6 Qg7-g3 Rd8-e8
23/47 00:02 16,233k 7,505k +2.51 O-O Rh8-e8 Qe2-c2 Ng6-e5 Bc1-f4 g7-g6 Ra1-d1 Be7-f8 Nd4-f3 Ne5xf3+ Bg2xf3 Bf8-d6 Bf4-g5 Bd6-e7 Rd1xd8+ Re8xd8 Rf1-e1 Nf6-d5 Bg5xe7 Nd5xe7
24/37+ 00:03 24,533k 7,405k +2.50 O-O
24/40 00:03 25,793k 7,408k +2.40 O-O Be7-c5 b2-b4 Rh8-e8 Qe2-b2 Bc5-b6 Bc1-g5 a7-a6 Ra1-d1 Ng6-e5 a2-a4 Rd8-d6 a4-a5 Bb6-a7 Nd4-f5 Rd6-d3 Qb2-c2 Re8-d8 Nf5xg7 Rd3xd1 Bg5xf6 Rd8-d2 Qc2-f5+ Ne5-d7 Rf1xd1 Rd2xd1+ Kg1-h2
25/39+ 00:04 31,227k 7,437k +2.57 O-O
25/39- 00:04 32,461k 7,447k +2.26 O-O Be7-c5
25/44+ 00:05 39,238k 7,426k +2.50 O-O
25/44 00:06 47,756k 7,421k +2.06 O-O Nf6-g4 Nd4-e6 f7xe6 Qe2xe6+ Kc8-b8 Qe6xg6 Rh8-f8 Qg6xh5 Ng4xf2 Bc1-f4 Rf8xf4 g3xf4 Nf2-d3 Ra1-d1 Qc7-b6+ Kg1-h2 Qb6xb2 Rd1-b1 Qb2xc3 Qh5-f7 Qc3-c5 Qf7xg7 b7-b6 Rb1-d1 Be7xh4 Qg7-h7 Qc5-e7 Qh7-g6 Qe7-e3 Rf1-f3 Nd3xf4 Rd1xd8+ Bh4xd8 Qg6xc6
26/39+ 00:06 48,050k 7,422k +2.32 O-O
26/43+ 00:06 48,103k 7,422k +2.47 O-O
26/43+ 00:06 50,234k 7,397k +2.67 O-O
26/43 00:06 50,839k 7,398k +2.65 O-O Be7-c5 b2-b4 Rh8-e8 Qe2-d1 Bc5-b6 Bc1-g5 Re8-e5 a2-a4 a7-a6 Qd1-f3 Kc8-b8 Bg5xf6 g7xf6 Ra1-d1 Rd8-d6 a4-a5 Bb6xd4 Rd1xd4 Rd6xd4 c3xd4 Re5-b5 Rf1-d1 Ng6-e7 Qf3xf6 Ne7-d5 Qf6-h8+ Kb8-a7 Bg2-f1 Rb5xb4 Qh8xh5
27/47- 00:09 69,014k 7,360k +2.46 O-O Rh8-e8
27/48+ 00:09 72,273k 7,333k +2.62 O-O
27/48 00:11 80,760k 7,250k +2.61 O-O Be7-c5 b2-b4 Rh8-e8 Qe2-d1 Bc5-b6 Bc1-g5 Kc8-b8 Bg5xf6 g7xf6 Qd1xh5 Bb6xd4 c3xd4 Rd8xd4 b4-b5 c6-c5 Ra1-d1 Ng6-e5 Qh5-f5 Qc7-d6 Rd1xd4 Qd6xd4 Qf5xf6 c5-c4 Qf6-f5 c4-c3 Qf5-e4 Qd4xe4 Bg2xe4
28/40- 00:12 88,037k 7,193k +2.44 O-O Be7-c5
28/40+ 00:12 90,876k 7,170k +2.60 O-O
28/43 00:13 93,517k 7,165k +2.68 O-O Be7-c5 b2-b4 Rh8-e8 Qe2-d1 Bc5-b6 Bc1-g5 Re8-e5 a2-a4 a7-a6 Qd1-f3 Rd8-d6 Bg2-h3+ Nf6-g4 Bh3xg4+ h5xg4 Qf3xg4+ Qc7-d7 Qg4xd7+ Rd6xd7 Bg5-e3 Re5-d5 a4-a5 Bb6-c7 Nd4-b3 Ng6-e5 Kg1-g2 Ne5-d3 Ra1-b1 Rd7-d8 Be3-d4 Bc7-e5 Rf1-d1 Be5xd4 Rd1xd3 Bd4-a7 Rd3-f3
29/48 00:14 101,717k 7,128k +2.50 O-O Be7-c5 b2-b4 Rh8-e8 Qe2-d1 Bc5-b6 Bc1-g5 Re8-e5 a2-a4 a7-a6 Qd1-f3 Rd8-d6 Nd4-f5 Rd6-d5 Bg2-h3 Nf6-g4 Nf5xg7 Kc8-b8 a4-a5 Bb6-a7 Ng7xh5 Ng4xf2 Rf1xf2 Re5xg5 h4xg5 Ng6-e5 Qf3-e4 Ne5-d3 Ra1-f1 Nd3xf2 Rf1xf2 Rd5-e5 Qe4-f3 Qc7-e7 Kg1-g2 Ba7xf2 Kg2xf2 Qe7xg5 Nh5-f4
30/42+ 00:16 114,361k 7,105k +2.71 O-O
30/44+ 00:18 132,693k 7,078k +2.87 O-O
30/44 00:19 135,202k 7,075k +2.54 O-O Be7-c5 b2-b4 Rh8-e8 Qe2-d1 Bc5-b6 Bc1-g5 Re8-e5 a2-a4 a7-a6 Qd1-f3 Rd8-d6 Nd4-f5 Rd6-d5 Nf5xg7 Re5xg5 h4xg5 Rd5xg5 a4-a5 Bb6-a7 Ng7-f5 Nf6-g4 Ra1-e1 Qc7-d7 Re1-e8+ Kc8-c7 Nf5-g7 h5-h4 Rf1-d1 Ba7xf2+ Kg1-h1 Rg5-d5 Rd1xd5 c6xd5 g3xh4 Bf2xh4 Qf3xd5
31/44+ 00:20 147,076k 7,049k +2.79 O-O
31/49+ 00:28 196,881k 6,970k +2.96 O-O
31/49 00:28 200,179k 6,965k +2.92 O-O Nf6-g4 Nd4-e6 f7xe6 Qe2xe6+ Kc8-b8 Qe6xg6 Rh8-f8 Qg6xh5 Ng4xf2 Bc1-f4 Rf8xf4 g3xf4 Nf2-d3 Ra1-d1 Qc7-b6+ Kg1-h2 Qb6xb2 Rd1-b1 Qb2xc3 Qh5-f7 Qc3-c5 Qf7xg7 b7-b6 Rf1-f3 Be7xh4 Rf3-h3 Qc5-e7 Qg7-h6 Bh4-f6 Rb1-d1 Nd3-b4 Rd1xd8+ Qe7xd8 Rh3-g3 Qd8-d4 Qh6-f8+ Kb8-c7 Qf8-f7+ Kc7-d6 Qf7xa7 Kd6-c5
32/52- 00:41 282,862k 6,846k +2.72 O-O Rd8-e8
32/52+ 00:44 304,327k 6,828k +2.90 O-O
32/53 00:46 314,404k 6,823k +2.92 O-O a7-a5 Bc1-g5 Nf6-g4 Nd4-e6 f7xe6 Qe2xe6+ Kc8-b8 Qe6xg6 Be7-c5 Bg5-f4 Bc5-d6 Bf4xd6 Rd8xd6 Qg6-g5 Rd6-f6 Ra1-e1 Qc7-b6 Re1-e2 Rh8-f8 Qg5-d2 Rf8-d8 Qd2-c2 Rd8-f8 a2-a4 Rf8-f7 Qc2-d2 Kb8-a7 b2-b4 Rf6-f5 Qd2-a2 a5xb4 a4-a5 Qb6-b5 c3xb4 Qb5xb4 a5-a6 Qb4-a5 a6xb7 Qa5xa2 Re2xa2+ Ka7xb7
33/43- 00:46 319,941k 6,821k +2.71 O-O a7-a5
33/43+ 00:50 344,043k 6,815k +2.90 O-O
33/68- 01:07 457,295k 6,767k +2.52 O-O a7-a5
33/69+ 01:10 473,240k 6,743k +2.84 O-O
33/69 01:12 489,893k 6,735k +3.07 O-O a7-a5 Bc1-g5 Nf6-g4 Nd4-e6 f7xe6 Qe2xe6+ Kc8-b8 Qe6xg6 Be7-c5 Bg5-f4 Bc5-d6 Bf4xd6 Rd8xd6 Qg6-g5 Rd6-f6 Ra1-e1 Qc7-b6 Re1-e2 Rh8-f8 Qg5-d2 Rf8-d8 Qd2-c2 Qb6-c5 a2-a3 g7-g5 b2-b4 Qc5-f5 Bg2-e4 Qf5-b5 c3-c4 Qb5-e5 Be4-g2 Qe5-f5 Rf1-d1 Rd8-f8 Qc2xf5 Rf6xf5 h4xg5 a5xb4 a3xb4 Rf5xg5 Rd1-e1 Ng4-f6 Re1-b1 h5-h4 b4-b5 h4xg3 b5xc6 g3xf2+ Re2xf2
34/50+ 01:43 680,264k 6,552k +3.16 O-O
34/67 02:30 968,882k 6,421k +3.05 O-O a7-a5 Bc1-g5 Nf6-g4 Nd4-e6 f7xe6 Qe2xe6+ Kc8-b8 Qe6xg6 Be7-c5 Bg5-f4 Bc5-d6 Bf4xd6 Rd8xd6 Qg6-g5 Rd6-f6 Ra1-e1 Qc7-b6 Re1-e2 Rh8-f8 Qg5-d2 Rf8-d8 Qd2-c2 Rd8-f8 b2-b4 a5xb4 c3xb4 Qb6xb4 Rf1-b1 Qb4-d6 Qc2-b2 b7-b5 Rb1-f1 Rf8-d8 Rf1-c1 Rf6xf2 Re2xf2 Qd6xg3 Qb2-e2 Qg3-h2+ Kg1-f1 Qh2-g3 Rc1-e1 Qg3xf2+ Qe2xf2 Ng4xf2 Kf1xf2 Rd8-d2+ Re1-e2 Rd2-d4 Bg2xc6 Rd4xh4 Bc6xb5 g7-g5 Bb5-e8
35/63- 02:33 986,822k 6,421k +2.87 O-O a7-a5
35/63- 02:38 1,016,148k 6,417k +2.67 O-O a7-a5
35/63+ 02:39 1,023,350k 6,416k +2.87 O-O
35/63 02:41 1,034,898k 6,418k +3.13 O-O a7-a5 Bc1-g5 Nf6-g4 Nd4-e6 f7xe6 Qe2xe6+ Kc8-b8 Qe6xg6 Be7-c5 Bg5-f4 Bc5-d6 Bf4xd6 Rd8xd6 Qg6-g5 Rd6-f6 Ra1-e1 Qc7-b6 Re1-e2 Rh8-f8 Qg5-d2 Rf8-d8 Qd2-c2 Qb6-c5 a2-a3 g7-g5 b2-b4 Qc5-b5 c3-c4 Qb5-f5 Rf1-d1 Rd8-f8 Qc2xf5 Rf6xf5 h4xg5 Rf5xg5 Rd1-e1 a5xb4 a3xb4 Ng4-f6 b4-b5 h5-h4 b5xc6 h4xg3 c6xb7 g3xf2+ Re2xf2 Rf8-g8 Re1-e7 Nf6-g4
36/58+ 03:06 1,192,406k 6,406k +3.23 O-O
36/61 03:28 1,335,568k 6,405k +3.28 O-O a7-a5 Bc1-g5 Nf6-g4 Nd4-e6 f7xe6 Qe2xe6+ Kc8-b8 Qe6xg6 Be7-c5 Bg5-f4 Bc5-d6 Bf4xd6 Rd8xd6 Qg6-g5 Rd6-f6 Ra1-e1 Qc7-b6 Re1-e2 Rh8-f8 Qg5-d2 Rf8-d8 Qd2-c2 Rd8-f8 b2-b4 a5xb4 c3xb4 Rf6-f5 a2-a4 g7-g5 h4xg5 Rf5xg5 a4-a5 Qb6-d8 a5-a6 h5-h4 Qc2-h7 b7xa6 Bg2xc6 Qd8-c7 Qh7xh4 Ng4xf2 Re2xf2 Qc7xg3+ Qh4xg3+ Rg5xg3+ Bc6-g2 Rf8xf2 Rf1xf2 Rg3-b3 Rf2-f4 Kb8-c7 Bg2-f1 Kc7-b6 Kg1-f2 a6-a5 Rf4-f6+ Kb6-b7
37/64- 03:31 1,357,742k 6,406k +3.02 O-O a7-a5
37/64+ 03:54 1,501,015k 6,396k +3.24 O-O
37/64 04:29 1,718,107k 6,384k +3.23 O-O a7-a6 b2-b4 Nf6-g4 Nd4-e6 f7xe6 Qe2xe6+ Kc8-b8 Qe6xg6 Rd8-f8 Qg6xg7 Rh8-g8 Qg7-d4 Be7xh4 Bc1-f4 Rf8xf4 Qd4xf4 Qc7xf4 g3xf4 Rg8-f8 Bg2-f3 Rf8xf4 Bf3xg4 Rf4xg4+ Kg1-h1 Bh4-f6 Ra1-c1 Rg4-c4 f2-f4 b7-b5 Kh1-g2 Kb8-c7 Kg2-f3 Kc7-b6 Rf1-e1 Bf6xc3 Re1-e2 a6-a5 b4xa5+ Kb6xa5 f4-f5 Rc4-c5 f5-f6 Rc5-f5+ Kf3-e4 Rf5xf6 Rc1xc3
38/56- 04:48 1,838,800k 6,373k +2.83 O-O Kc8-b8
38/57+ 04:53 1,868,261k 6,373k +3.21 O-O
38/58 04:55 1,883,556k 6,373k +3.07 O-O Kc8-b8 Nd4-f5 Nf6-g4 Nf5xe7 Qc7xe7 Qe2xe7 Ng6xe7 Bc1-f4+ Kb8-a8 Ra1-d1 Ne7-g6 Bf4-c7 Rd8xd1 Rf1xd1 Rh8-e8 Rd1-d7 Ng4-h6 Bg2-h3 Ng6-f8 Rd7-d1 b7-b5 c3-c4 Ka8-b7 Bc7-a5 b5xc4 Ba5-c3 Nf8-e6 Bh3-f1 Re8-e7 Bf1xc4 Nh6-f5 Rd1-e1 Re7-e8 b2-b3 g7-g6 Re1-d1 Kb7-c7 Bc3-e5+ Kc7-b6 Be5-f6 Re8-c8 Rd1-d7 Rc8-c7 Rd7xc7 Kb6xc7
39/63+ 05:30 2,102,429k 6,370k +3.29 O-O
39/63 05:40 2,170,592k 6,370k +3.27 O-O Rd8-d7 Bg2-h3 Nf6-g4 Nd4-f5 Kc8-b8 Bh3xg4 h5xg4 Qe2xg4 Be7-f6 Bc1-e3 Ng6-e5 Qg4-e4 g7-g6 Nf5-d4 Kb8-c8 Nd4-f3 Ne5-d3 Rf1-d1 Rh8-d8 Rd1-d2 Rd7-d6 Nf3-d4 Nd3-c5 Qe4-f3 Bf6-e5 Ra1-e1 f7-f6 Be3-f4 Rd6-d5 b2-b4 Be5xf4 g3xf4 Nc5-a4 Nd4-e6 Qc7-e7 Rd2xd5 Rd8xd5 Qf3-g3 Qe7-d7 Qg3xg6 Na4xc3
40/58- 05:56 2,267,544k 6,367k +3.04 O-O Rd8-d7
40/58+ 06:16 2,394,053k 6,366k +3.25 O-O
40/70 07:23 2,822,723k 6,358k +3.42 O-O Rd8-d7 Bg2-h3 Nf6-g4 Nd4-f5 Kc8-b8 Bh3xg4 h5xg4 Qe2xg4 Be7-f6 Bc1-e3 Ng6-e5 Qg4-e4 g7-g6 Nf5-d4 Kb8-c8 Nd4-f3 Ne5-d3 Rf1-d1 Nd3xb2 Rd1xd7 Qc7xd7 Be3xa7 Bf6xc3 Ra1-c1 Bc3-g7 Rc1-e1 Rh8-g8 Qe4-f4 Qd7-c7 Qf4-g5 Qc7-d8 Re1-e7 Rg8-e8 Re7xf7 Qd8xg5 h4xg5 Bg7-c3 Nf3-h4 Re8-e6 Rf7-f3 Nb2-a4 Rf3-f8+ Kc8-d7 Rf8-g8 c6-c5 Nh4xg6 Re6-a6 Ba7-b8 c5-c4 Kg1-f1 Na4-c5 Ng6-e5+ Kd7-e7 Ne5xc4 Ra6xa2 Bb8-e5 Bc3xe5 Nc4xe5 Nc5-e4
41/58 08:45 3,334,679k 6,346k +3.45 O-O Rd8-d7 Bg2-h3 Nf6-g4 Nd4-f5 Kc8-b8 Bh3xg4 h5xg4 Qe2xg4 Be7-f6 Bc1-e3 Ng6-e5 Qg4-e4 g7-g6 Nf5-d4 Kb8-c8 Nd4-f3 Ne5-d3 Rf1-d1 Nd3xb2 Rd1xd7 Qc7xd7 Be3xa7 Bf6xc3 Ra1-c1 Bc3-g7 Rc1-e1 Rh8-g8 Qe4-f4 Qd7-c7 Qf4-g5 Qc7-d8 Re1-e7 Bg7-f8 Re7xf7 Qd8xg5 Nf3xg5 Nb2-c4 Ba7-d4 Bf8-b4 Kg1-g2 Nc4-d6 Rf7-f3 Nd6-c4 Ng5-e4 Rg8-e8 Rf3-f4
42/63 09:30 3,617,025k 6,335k +3.43 O-O Rd8-d7 Bg2-h3 Nf6-g4 Nd4-f5 Kc8-b8 Bh3xg4 h5xg4 Qe2xg4 Be7-f6 Bc1-e3 Ng6-e5 Qg4-e4 g7-g6 Nf5-d4 Kb8-c8 Nd4-f3 Ne5-d3 Rf1-d1 Nd3xb2 Rd1xd7 Qc7xd7 Be3xa7 Bf6xc3 Ra1-c1 Bc3-g7 Rc1-e1 Rh8-g8 Qe4-f4 Qd7-c7 Qf4-g5 Qc7-d8 Re1-e7 Rg8-e8 Re7xf7 Qd8xg5 h4xg5 Bg7-c3 Nf3-h4 Re8-e6 Rf7-f3 Bc3-g7 Kg1-g2 b7-b5 Rf3-e3 Re6xe3 Ba7xe3 Nb2-d1 Kg2-f3 Nd1xe3 Kf3xe3 c6-c5
43/62 10:36 4,007,056k 6,293k +3.43 O-O Rd8-d7 Bg2-h3 Nf6-g4 Nd4-f5 Kc8-b8 Bh3xg4 h5xg4 Qe2xg4 Be7-f6 Bc1-e3 Ng6-e5 Qg4-e4 g7-g6 Nf5-d4 Kb8-c8 Nd4-f3 Ne5-d3 Rf1-d1 Nd3xb2 Rd1xd7 Qc7xd7 Be3xa7 Bf6xc3 Ra1-c1 Bc3-g7 Rc1-e1 Rh8-g8 Qe4-f4 Qd7-c7 Qf4-g5 Qc7-d8 Re1-e7 Rg8-e8 Re7xf7 Qd8xg5 h4xg5 Bg7-c3 Nf3-h4 Re8-e6 Rf7-f3 Bc3-g7 Kg1-g2 b7-b5 Rf3-e3 Re6xe3 Ba7xe3 Nb2-d1 Kg2-f3 Nd1xe3 Kf3xe3 c6-c5 Nh4xg6 Bg7-d4+ Ke3-e2
44/60- 11:19 4,263,676k 6,270k +3.19 O-O Rd8-d7
44/61+ 13:08 4,938,779k 6,267k +3.42 O-O
44/64 13:48 5,193,845k 6,269k +2.98 O-O Kc8-b8 Nd4-f5 Nf6-g4 Nf5xe7 Qc7xe7 Qe2xe7 Ng6xe7 Bc1-f4+ Kb8-a8 Ra1-d1 Ne7-g6 Bf4-c7 Rd8xd1 Rf1xd1 Rh8-e8 Rd1-d7 Ng4-h6 Bg2-h3 Ng6-f8 Rd7-d1 b7-b6 Bc7-f4 Nh6-g4 Bh3-g2 Ka8-b7 Bg2-f3 b6-b5 Rd1-d6 Re8-c8 Rd6-d4 a7-a6 a2-a4 Ng4-f6 Bf4-g5 Nf6-g4 Rd4-b4 Kb7-c7 Bg5-f4+ Kc7-b6 Bf3xg4 h5xg4 Bf4-e3+ c6-c5 a4xb5 a6-a5 Rb4xg4 Nf8-e6 Kg1-f1 Kb6xb5 Kf1-e1 a5-a4 Ke1-e2
45/39+ 14:40 5,500,695k 6,248k +3.31 O-O
45/75 16:45 6,283,875k 6,247k +3.30 O-O a7-a5 Bc1-g5 Nf6-g4 Nd4-e6 f7xe6 Qe2xe6+ Kc8-b8 Qe6xg6 Be7-c5 Bg5-f4 Bc5-d6 Bf4xd6 Rd8xd6 Qg6-g5 Rd6-f6 Ra1-e1 Qc7-b6 Re1-e2 Rh8-f8 Qg5-d2 Rf6-f5 Bg2-h3 Rf5-d5 Qd2-c2 Ng4-e5 Bh3-g2 Ne5-f3+ Bg2xf3 Rf8xf3 Qc2-g6 Qb6-c7 c3-c4 Rd5-f5 Rf1-d1 Kb8-a7 Kg1-g2 Qc7-f7 Qg6xf7 Rf5xf7 Rd1-d2 Rf3-f5 f2-f4 Ka7-b6 a2-a3 Kb6-c5 Re2-e4 a5-a4 Kg2-f3 Rf7-f8 Rd2-d3 g7-g6 Kf3-e3 Rf8-f6 Ke3-d2 Rf6-f7 Kd2-c3 Rf7-f6 Rd3-e3 Kc5-b6
46/80+ 21:07 7,915,070k 6,242k +3.50 O-O
46/80 26:41 9,942,128k 6,210k +3.58 O-O Rh8-e8 Qe2-c2 Ng6-e5 Bc1-f4 g7-g6 Ra1-e1 Be7-d6 Bf4-g5 Bd6-e7 Qc2-a4 Nf6-d5 Bg5xe7 Re8xe7 Qa4xa7 Qc7-b8 Qa7-a4 Qb8-d6 Re1-e2 Rd8-e8 Rf1-e1 Nd5-b6 Qa4-b3 Ne5-c4 Qb3-c2 Re7xe2 Re1xe2 Re8xe2 Qc2xe2 Kc8-d7 b2-b3 Nc4-e5 Nd4-f3 Ne5xf3+ Bg2xf3 Kd7-c7 Qe2-e3 Nb6-d5 Qe3-d4 Nd5-b6 Qd4xd6+ Kc7xd6 Kg1-g2 Nb6-d7 Bf3-e2 Nd7-b6 a2-a4 Nb6-d5
47/70- 31:44 11,782,182k 6,188k +3.29 O-O Be7-c5
47/79+ 32:13 11,964,479k 6,187k +3.52 O-O
47/80 34:23 12,761,061k 6,184k +3.38 O-O Be7-c5 b2-b4 Bc5-b6 Bc1-g5 Kc8-b8 Nd4-f5 Nf6-g4 Bg5xd8 Rh8xd8 Ra1-d1 Rd8xd1 Qe2xd1 Ng6xh4 Nf5xh4 Qc7xg3 Qd1-d8+ Bb6xd8 f2xg3 Bd8-b6+ Kg1-h1 Ng4-f2+ Kh1-h2 Nf2-g4+ Kh2-h3 Ng4-f2+ Rf1xf2 Bb6xf2 Nh4-f3 Kb8-c7 c3-c4 f7-f6 Bg2-f1 g7-g5 Kh3-g2 Bf2-e3 Nf3-e1 Be3-d2 Ne1-c2 Kc7-d6 Bf1-e2 g5-g4 Be2-d3 Bd2-g5 Bd3-g6 h5-h4 Bg6-f5 Kd6-e5 Bf5xg4 Ke5-e4 Bg4-e2 f6-f5 b4-b5 h4xg3 Kg2xg3 Bg5-e7 Be2-f1 f5-f4+ Kg3-g4 Be7-d6 Nc2-e1 Ke4-d4 Ne1-f3+ Kd4-c3 Kg4-f5 Kc3-b2 Kf5-e6 Bd6-c5 a2-a4 Kb2-b3 a4-a5 c6xb5 c4xb5
48/83 37:08 13,749,288k 6,171k +3.29 O-O Be7-c5 b2-b4 Bc5-b6 Bc1-g5 Kc8-b8 Nd4-f5 Nf6-g4 Bg5xd8 Rh8xd8 Ra1-d1 Rd8xd1 Qe2xd1 Ng6xh4 Nf5xh4 Qc7xg3 Qd1-d8+ Bb6xd8 f2xg3 Bd8-b6+ Kg1-h1 Ng4-f2+ Kh1-h2 Nf2-g4+ Kh2-h3 Ng4-f2+ Rf1xf2 Bb6xf2 Nh4-f3 Kb8-c7 c3-c4 f7-f6 Bg2-f1 g7-g5 Kh3-g2 Bf2-e3 Nf3-e1 Be3-d2 Ne1-c2 Kc7-d6 Bf1-e2 g5-g4 Be2-d3 Bd2-g5 Bd3-g6 h5-h4 Bg6-f5 Kd6-e5 Bf5xg4 Ke5-e4 Bg4-e2 f6-f5 b4-b5 h4xg3 Kg2xg3 Bg5-e7 Kg3-f2 f5-f4 Nc2-e1 Be7-c5+ Kf2-f1 Bc5-b4 Ne1-d3 Bb4-d6 Nd3-f2+ Ke4-d4 b5xc6 b7xc6 Be2-f3 Kd4xc4 Bf3xc6 Bd6-e7 Kf1-e2 Kc4-b4 Nf2-d3+ Kb4-a3

[Chessqueen]

That was about 25 years ago WOW, time fly.