Progress on Blunder

[algerbrex]

So, I ran another gauntlet with Leorik out of curiosity, and I'm starting to become convinced concurrency and my laptop's peculiarities are playing a role in some of what I'm observing.

So I had started running a gauntlet with a concurrency of 8, and it was 2/3 of the way through, with 8.6.5 behind Leorik by about ~40 Elo points, before I misremembered that I had used a concurrency of 4 for the original gauntlet.

I don't know what CPU you have. but say it is 4 cores, 8 threads. In my experience If you use 8 threads then each instance will have lower nps and lower search depth. I've run tests here with SF to demonstrate that on Ryzen and Intel. That extra thread capability is not a free lunch. They are competing for the same resource a lot of the time. And I've always wondered about the possibility of inconsistencies. On top of that, the CPU clock speed itself will likely slow down which of course slows the engines down too. For my own engine testing I do not go above the number of actual cores, although I know some do, e.g. Stefan Pohl, Carlos etc.

Thanks. Funny enough my CPU is 8 cores with 8 threads (https://www.amd.com/en/products/apu/amd-ryzen-7-4700u), so I'm technically using no more than the number of actual cores I have. But I still think this is putting too much of a strain on the laptop. A concurrency of 6 may be the way to go with me...

[Modern Times]

Thanks. Funny enough my CPU is 8 cores with 8 threads (https://www.amd.com/en/products/apu/amd-ryzen-7-4700u), so I'm technically using no more than the number of actual cores I have. But I still think this is putting too much of a strain on the laptop. A concurrency of 6 may be the way to go with me...

Ah so you don't have that core/thread complication. Concurrency 7 should be fine then, as long as the laptop isn't doing anything else and is adequately cooled. What could be happening under full load too is dips in clock speed to control thermals. But you will know all of this.

[algerbrex]

Ah so you don't have that core/thread complication. Concurrency 7 should be fine then, as long as the laptop isn't doing anything else and is adequately cooled. What could be happening under full load too is dips in clock speed to control thermals. But you will know all of this.

Yeah, I think that the concurrency amount should work and be safe enough. And right, I suspect that the CPU is dipping the clock speed because of the heat, so I've tried to spend some time making sure things are cool enough.

I took J.T's suggestion from another thread as well about sitting my laptop on two thick books to allow the fan to get in a lot more air, and it's worked very well actually. Even without my desktop fan that I normally use, my laptop isn't even warm to the touch, it's room temperature. And I'm concurrently finishing a test that's using a concurrency of 8, so I'm maxing out the number of cores. So in addition to running the fan when needed, I shouldn't have too many heat issues going forward, although I'll still need to be careful. So going forward I think a concurrency of 7 is what I'll try to use.

[Modern Times]

I took J.T's suggestion from another thread as well about sitting my laptop on two thick books to allow the fan to get in a lot more air, and it's worked very well actually.

Yes, I raise the rear of my laptop when it is under heavy load, that is where it draws air in underneath in my case. It reduces temps a little and it can maintain a consistent clock speed.

One trap I fell into was to leave the lid closed when hooked to an external monitor. In that situation it runs quite a bit hotter.

[bastiball]

I took J.T's suggestion from another thread as well about sitting my laptop on two thick books to allow the fan to get in a lot more air, and it's worked very well actually.

Yes, I raise the rear of my laptop when it is under heavy load, that is where it draws air in underneath in my case. It reduces temps a little and it can maintain a consistent clock speed.

One trap I fell into was to leave the lid closed when hooked to an external monitor. In that situation it runs quite a bit hotter.

I used a laptop stand that reduces temps a lot and it also maintaining a consistent clock speed when I'm using the stand. Very much cooler than without a stand.

[algerbrex]

I haven't had much time to work on Blunder or browse this forum lately, as I've gotten quite busy between my studies, extracurricular responsibilities, and work. But I have had a little time to play around with the evaluation, and one idea I've settled on exploring more thoroughly is adding more PSQT, and their usage is dependent on the position of the king.

As a basic idea I opted for something pretty simple. I've added 12 new PSQT to Blunder, so 12 for the middlegame and 12 for the endgame. And the deciding factor between which set is used is which side the king's castled on. I've changed the evaluation and the tuner for the most part, but there are still a couple of tweaks I need to make before I can tune and test.

I suspect with the addition of these new tables, I might need to try bumping up my dataset from ~1M positions to something like ~1.25M or ~1.5M, just to get some more data to better tune all of the additional weights. But this idea seems like it should be a decent Elo gain in theory, as the position of the king, as is known, is a big determining factor in how a certain position should be evaluated.

Anyway, I'm excited to play around with this idea and see how it goes. I probably won't be going to much more extreme, but may try some different variations, all centered around adding more weights for different king positions.

[Chessqueen]

I haven't had much time to work on Blunder or browse this forum lately, as I've gotten quite busy between my studies, extracurricular responsibilities, and work. But I have had a little time to play around with the evaluation, and one idea I've settled on exploring more thoroughly is adding more PSQT, and their usage is dependent on the position of the king.

As a basic idea I opted for something pretty simple. I've added 12 new PSQT to Blunder, so 12 for the middlegame and 12 for the endgame. And the deciding factor between which set is used is which side the king's castled on. I've changed the evaluation and the tuner for the most part, but there are still a couple of tweaks I need to make before I can tune and test.

I suspect with the addition of these new tables, I might need to try bumping up my dataset from ~1M positions to something like ~1.25M or ~1.5M, just to get some more data to better tune all of the additional weights. But this idea seems like it should be a decent Elo gain in theory, as the position of the king, as is known, is a big determining factor in how a certain position should be evaluated.

Anyway, I'm excited to play around with this idea and see how it goes. I probably won't be going to much more extreme, but may try some different variations, all centered around adding more weights for different king positions.

[pgn][Event "Rook Vs knight Odds"]
[Site "DESKTOP-OFQ3C0P"]
[Date "2022.08.29"]
[Round "?"]
[White "Dragon-2.6.1-64bit-avx2"]
[Black "Blunder-8.5.5-avx2"]
[Result "1-0"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "rnbqkb1r/pppppppp/8/8/8/8/PPPPPPPP/1NBQKBNR w Kkq - 0 1"]
[Termination "normal"]
[PlyCount "106"]
[WhiteType "program"]
[BlackType "program"]

1. e4 {(e2-e4 c7-c5 Nb1-c3 e7-e6 Ng1-f3 d7-d5 e4xd5 e6xd5 Bf1-b5+ Nb8-c6
d2-d4 Bf8-e7 d4xc5 O-O Qd1xd5 Qd8xd5 Nc3xd5 Be7xc5 Bc1-e3 Bc5xe3 f2xe3
Kg8-h8 Ke1-e2 Ra8-b8 h2-h3 Bc8-f5 Bb5-d3 Bf5xd3+ c2xd3) -1.31/25 20} c5
{(c7-c5 Ng1-f3 Nb8-c6 Bf1-e2 g7-g6 d2-d4 c5xd4 Nf3xd4 Bf8-g7 Nd4-b3 O-O
Nb1-c3 d7-d6 O-O f7-f5 e4xf5 Bc8xf5 Bc1-e3 Bf5-e6 Be2-f3 Bg7xc3 b2xc3)
+1.13/21 31} 2. Nf3 {(Ng1-f3 e7-e6 Bf1-e2 d7-d5 e4-e5 Bc8-d7 O-O Nb8-c6
c2-c3 Bf8-e7 d2-d4 c5xd4 c3xd4 O-O Nb1-c3 f7-f6 Be2-d3 Bd7-e8 Nc3-e2 f6xe5
Nf3xe5 Be7-d6 Qd1-c2 Nc6xe5 d4xe5 Bd6xe5 Bd3xh7+ Kg8-h8 Bh7-d3 Be5-f6
a2-a3) -1.53/28 55} Nc6 {(Nb8-c6 Nb1-c3 e7-e6 a2-a3 Bf8-d6 g2-g3 O-O Bf1-g2
Bd6-e7 O-O Be7-f6 Rf1-e1 d7-d6 d2-d3 Nc6-d4 Bc1-f4 Qd8-b6 Nc3-a4 Nd4xf3+
Bg2xf3 Qb6-c7 Na4-c3 Bc8-d7) +1.16/22 32} 3. Bb5 {(Bf1-b5 d7-d5 O-O d5xe4
Nf3-e5 Bc8-d7 Bb5xc6 Bd7xc6 Ne5xc6 b7xc6 Qd1-e2 f7-f5 d2-d3 e4xd3 c2xd3
Qd8-d7 Rf1-e1 Ra8-d8 Nb1-d2 Qd7xd3 Qe2-e5 Qd3-d5 Qe5-c7 Qd5-d7 Qc7-e5
Ke8-f7 Nd2-f3 Kf7-g8 h2-h4 h7-h6 Qe5-e2) -1.51/28 19} e6 {(e7-e6 O-O Bf8-e7
Nb1-c3 O-O d2-d4 a7-a6 Bb5-e2 c5xd4 Nf3xd4 Nc6xd4 Qd1xd4) +1.24/19 33} 4.
Bxc6 {(Bb5xc6 b7xc6 d2-d3 Bf8-e7 h2-h4 d7-d6 e4-e5 c5-c4 d3xc4 O-O Nb1-c3
d6xe5 Nf3xe5 Qd8-c7 Qd1-e2 f7-f6 Ne5-d3 e6-e5 h4-h5 h7-h6 Qe2-e4 Bc8-e6
Qe4-g6 Be6-f7 Qg6-g4 Kg8-h8 Rh1-h3 Qc7-c8 Qg4xc8 Ra8xc8 b2-b3 Bf7-e6 Rh3-h1
Be6-f5 f2-f3 Bf5xd3 c2xd3 Be7-b4) -1.41/28 19} bxc6 {(b7xc6 e4-e5 Bc8-a6
d2-d3 c5-c4 d3-d4 h7-h6 a2-a3 Bf8-e7 c2-c3 Qd8-c7 Nb1-d2 c6-c5 Qd1-a4
Qc7-c6 Qa4xc6 d7xc6 d4xc5 Be7xc5 Nd2-e4 Bc5-b6 O-O) +1.40/22 34} 5. d3
{(d2-d3 d7-d6 e4-e5 d6xe5 c2-c4 f7-f6 Nb1-c3 Bf8-e7 Qd1-e2 O-O b2-b3 Bc8-d7
h2-h4 e5-e4 d3xe4 e6-e5 h4-h5 Bd7-g4 h5-h6 g7-g5 O-O Qd8-e8 Qe2-e3 Qe8-h5
Nf3-h2 Rf8-d8 Nc3-a4 Rd8-d4 f2-f3 Bg4-e6 Bc1-a3 Qh5xh6 Ba3xc5 Be7xc5 Na4xc5
Be6-c8) -1.43/32 95} d5 {(d7-d5 Nb1-d2 Bf8-d6 O-O O-O c2-c4 Ra8-b8 Nd2-b3
Bc8-a6 Qd1-e2 h7-h6 Bc1-d2 d5-d4 h2-h3 Qd8-d7 Rf1-b1 Rf8-e8 Rb1-d1 Bd6-e7)
+1.44/19 35} 6. c4 {(c2-c4 Bf8-e7 Nb1-c3 O-O O-O Bc8-d7 Qd1-e2 f7-f6 b2-b3
Bd7-e8 Nc3-a4 Be8-h5 Rf1-e1 Rf8-e8 Qe2-e3 Qd8-a5 Bc1-d2 Qa5-c7 h2-h3 e6-e5
Qe3-e2 Ra8-d8 Bd2-c1 Qc7-c8 g2-g4 Bh5-f7 Nf3-h4 Be7-f8 Bc1-e3 d5xc4 d3xc4)
-1.33/31 32} Qa5+ {(Qd8-a5+ Nb1-d2 Qa5xa2 Nf3-e5 Bf8-d6 Qd1-h5 Bd6xe5
Qh5xe5) +1.61/19 36} 7. Nc3 {(Nb1-c3 Bf8-e7 O-O O-O Rf1-e1 Qa5-b4 e4-e5
Bc8-a6 a2-a3 Qb4-a5 Qd1-e2 Ra8-b8 h2-h3 Ba6-c8 h3-h4 Qa5-c7 h4-h5 h7-h6
Qe2-c2 Kg8-h8 Nc3-a4 Bc8-d7 Bc1-f4 Rf8-d8 g2-g4 Bd7-e8 d3-d4 d5xc4 Na4xc5)
-0.88/30 34} d4 {(d5-d4 Qd1-a4 Qa5-a6 Qa4xa6 Bc8xa6 Nc3-a4 Ba6-b5 c4xb5
c6xb5) +1.70/22 37} 8. Qa4 {(Qd1-a4 Qa5-c7 Nc3-e2 f7-f6 e4-e5 f6xe5 Ne2-g3
e5-e4 Ng3xe4 Ra8-b8 b2-b3 e6-e5 Bc1-d2 Bf8-d6 Bd2-a5 Qc7-d7 O-O O-O Rf1-e1
h7-h6 h2-h3 Rf8-e8 Ba5-d2 Re8-e6 Bd2-c1 Rb8-b6 Qa4-a5 Rb6-a6 Qa5-d2 Qd7-e7
Ne4xd6 Qe7xd6 Qd2-e2 Re6-e8 Nf3xe5 Bc8-f5) -0.41/30 17} Qa6 {(Qa5-a6)
+1.70/21 39} 9. Qxa6 {(Qa4xa6 Bc8xa6 Nc3-e2 Ba6-c8 e4-e5 a7-a5 h2-h4 a5-a4
g2-g4 h7-h6 Ke1-d1 Bf8-e7 Ne2-f4 Bc8-d7 Nf3-d2 Rh8-g8 h4-h5 Be7-d8 Nf4-h3
Bd8-e7 Rh1-g1 Ke8-d8 g4-g5 h6xg5 Nh3xg5 Bd7-e8 Nd2-e4 Rg8-h8 Ne4-g3 Ra8-a6
Kd1-c2) +0.03/31 19} Bxa6 {(Bc8xa6 Nc3-e2 Bf8-e7 O-O O-O Bc1-f4 Ra8-c8)
+1.69/21 40} 10. Ne2 {(Nc3-e2 e6-e5 Nf3xe5 Bf8-d6 Ne5-f3 f7-f6 Ke1-d1
Ba6-c8 Kd1-c2 Bc8-d7 h2-h3 Ke8-d8 Bc1-d2 Kd8-c7 Bd2-a5+ Kc7-b7 Ne2-g3
Ra8-e8 e4-e5 f6xe5 Nf3-d2 Bd6-c7 Ba5xc7 Kb7xc7 Ng3-e4 Kc7-b6 Nd2-b3 Bd7-f5
Ne4xc5 Rh8-f8 f2-f3 h7-h5 a2-a3 h5-h4 Rh1-e1) +0.13/33 21} Be7 {(Bf8-e7 O-O
O-O) +1.66/21 42} 11. e5 {(e4-e5 Ba6-c8 h2-h4 O-O h4-h5 h7-h6 Ke1-d1 Bc8-d7
Nf3-d2 Rf8-b8 Kd1-c2 Rb8-b7 Ne2-f4 Ra8-b8 Nd2-e4 a7-a5 g2-g4 a5-a4 Rh1-g1
Kg8-h7 Rg1-g2 Rb8-f8 Rg2-g3 Rf8-b8 Rg3-h3 Rb8-a8 Rh3-h1 Rb7-b8 Rh1-g1
Rb8-b7 Bc1-d2 Ra8-b8 Rg1-b1 Bd7-e8 f2-f3) +0.32/35 52} h6 {(h7-h6 Ke1-d2
Ra8-b8 Kd2-c2 O-O Bc1-d2 Kg8-h7 Rh1-d1 Rf8-d8 b2-b3 Rd8-d7 h2-h3 Rd7-c7
Bd2-a5 Rc7-b7 Nf3-d2 Kh7-g6 Nd2-e4 Rb7-d7 Ba5-d2 Kg6-f5) +1.68/21 44} 12.
Kd1 {(Ke1-d1 Ba6-c8 b2-b3 Bc8-d7 h2-h4 Ke8-d8 h4-h5 Bd7-e8 Kd1-c2 a7-a5
a2-a4 Kd8-d7 Bc1-d2 Kd7-c7 Rh1-e1 Rh8-f8 Ne2-f4 Kc7-b7 Re1-h1 Kb7-c7 Bd2-c1
Kc7-c8 Rh1-h3 Kc8-d7 Nf4-e2 Rf8-h8 Ne2-g3 f7-f6 Rh3-h1 Rh8-h7 Ng3-e2 Rh7-h8
Bc1-d2 Rh8-f8 Ne2-g3) +0.26/33 37} f5 {(f7-f5 e5xf6/ep g7xf6 Kd1-c2 Ke8-f7
Ne2-g3 h6-h5 h2-h4 Ba6-c8 Bc1-f4 e6-e5 Bf4-d2 Bc8-g4 Rh1-e1 Ra8-b8 a2-a4
Kf7-g6 Ng3-e4 Rh8-g8 a4-a5 Bg4xf3 g2xf3) +1.66/21 47} 13. h4 {(h2-h4 g7-g6
Ne2-f4 Ke8-f7 h4-h5 g6xh5 Nf4xh5 Ba6-c8 Nh5-f6 a7-a5 a2-a4 Ra8-b8 Kd1-c2
Kf7-g6 Bc1-d2 Rb8-b7 Bd2-f4 Rb7-b4 Rh1-g1 Rb4-b7 b2-b3 Kg6-f7 Rg1-h1 Kf7-g6
Rh1-h3 Bc8-d7 Rh3-h4 Bd7-c8 Rh4-h1 Rb7-a7 Rh1-h3 Ra7-a8 Bf4-c1 Kg6-f7
Rh3-h1 Kf7-g7 Bc1-d2 Ra8-a7 Rh1-h2 Ra7-a8 g2-g3 Ra8-a7 Rh2-h4 Kg7-g6)
+0.74/39 22} Kf7 {(Ke8-f7 Kd1-c2 Ra8-d8 Bc1-d2 g7-g6 Kc2-d1 Rd8-a8 Kd1-c2
Ra8-g8 Kc2-d1 Rg8-b8 Kd1-c2 Ba6-b7 a2-a3 Bb7-a6 a3-a4) +1.49/21 50} 14. h5
{(h4-h5 g7-g5 h5xg6/ep+ Kf7xg6 Ne2-f4+ Kg6-f7 Nf4-h5 Ba6-c8 Nh5-f6 a7-a5
a2-a4 Kf7-g6 Kd1-c2 Ra8-a7 Bc1-g5 Ra7-b7 Bg5-f4 Bc8-d7 Rh1-h3 Bd7-c8 b2-b3
Bc8-d7 Rh3-h4 Kg6-g7 Rh4-h2 Rb7-a7 Rh2-h3 Ra7-b7 Rh3-h4 Bd7-c8 Nf6-h5+
Kg7-f7 Rh4-h2 Bc8-d7 Rh2-h3 Kf7-g6 Rh3-h1 Bd7-c8 Nh5-f6) +0.74/37 17} Rhb8
{(Rh8-b8 Kd1-c2 Ba6-c8 Ne2-f4 a7-a5 a2-a4 Be7-d8 b2-b3 Ra8-a7 Bc1-d2 Bc8-a6
Nf4-g6 Ra7-b7 Rh1-b1 Rb7-d7 Bd2-f4 Kf7-g8 Bf4-d2 Bd8-b6 Kc2-b2 Kg8-f7
Kb2-c2 Bb6-c7 Rb1-d1 Kf7-g8) +1.26/26 54} 15. Rg1 {(Rh1-g1 Ba6-c8 g2-g4
Bc8-d7 g4-g5 Be7xg5 Nf3xg5+ h6xg5 Rg1xg5 Rb8-b7 Kd1-c2 a7-a5 Ne2-f4 Ra8-h8
Nf4-g6 Rh8-b8 Rg5-g1 a5-a4 Rg1-h1 Rb8-g8 Rh1-h2 Rg8-b8 Rh2-g2 Rb8-d8 f2-f3
Rd8-a8 Rg2-g5 Rb7-b8 Rg5-g1 Rb8-b4 Rg1-g3 Rb4-b7 Rg3-g2 Ra8-b8 Rg2-g1
Rb8-a8 Rg1-h1 Ra8-b8 Rh1-h2 Rb8-a8 Ng6-f4) +0.57/37 43} Bc8 {(Ba6-c8 Kd1-c2
Rb8-b6 Ne2-f4 a7-a5 Nf4-g6 a5-a4 Ng6xe7 Kf7xe7 Nf3-h4 Ra8-b8 Nh4-g6+ Ke7-f7
Ng6-h8+ Kf7-g8 Nh8-g6 Bc8-d7 Rg1-h1 Kg8-f7 Rh1-d1 Rb6-b7) +1.32/24 55} 16.
Nf4 {(Ne2-f4 Bc8-d7 Kd1-c2 Rb8-b7 Nf3-d2 Bd7-e8 Rg1-h1 a7-a5 a2-a4 Ra8-b8
b2-b3 Be7-g5 g2-g3 Rb7-b4 Bc1-a3 Bg5xf4 g3xf4 Kf7-g8 Rh1-h3 Kg8-h7 Ba3xb4
Rb8xb4 Rh3-h2 Be8-d7 Kc2-b2 Bd7-e8 Rh2-h1 Be8-f7 Kb2-a2 Bf7-e8 Nd2-f1
Rb4-b8 Ka2-b2 Rb8-b7 Nf1-g3 Be8-f7 Kb2-a2 Bf7-e8 Ka2-a3 Be8-f7 Ng3-e2
Rb7-b8 Ka3-b2) +0.50/40 50} a5 {(a7-a5 Kd1-c2 Ra8-a7 Nf4-g6 a5-a4 Ng6xe7
Ra7xe7 Nf3-h4 Bc8-a6 Nh4-g6 Re7-b7 Rg1-d1 Kf7-e8 Rd1-f1 Rb7-b6) +1.32/24
50} 17. g4 {(g2-g4 a5-a4 g4xf5 e6xf5 e5-e6+ Kf7-g8 Nf4-g6 Rb8-b7 Rg1-e1
Be7-f6 Kd1-c2 Ra8-a7 Bc1-f4 Rb7-e7 Ng6xe7+ Ra7xe7 Bf4-d6 Re7xe6 Re1xe6
Bc8xe6 b2-b3 a4xb3+ Kc2xb3 Be6-f7 a2-a4 Bf7xh5 Nf3-e5 Bh5-d1+ Kb3-a3 Bf6-d8
Ne5xc6 Bd8-f6 Bd6xc5 h6-h5 Bc5xd4 h5-h4 Bd4xf6 g7xf6 Nc6-e7+ Kg8-f7 Ne7xf5
h4-h3 Ka3-b4 h3-h2 Nf5-g3 Bd1-e2 Kb4-c3) +0.89/35 24} fxg4 {(f5xg4 Rg1xg4
Be7-f8 Nf4-g6 Kf7-g8 Nf3-d2) +0.75/20 53} 18. Rxg4 {(Rg1xg4 Be7-f8 Nf4-g6
Kf7-g8 Rg4-f4 Bc8-a6 Nf3-d2 Rb8-b7 Rf4-h4 Rb7-f7 Nd2-e4 a5-a4 Ng6xf8 Rf7xf8
f2-f4 Ba6-c8 Ne4xc5 Ra8-a7 Kd1-c2 Rf8-f5 b2-b4 a4xb3/ep+ a2xb3 Ra7-a5
Nc5-e4 Kg8-h7 b3-b4 Ra5-a4 Kc2-b3 Ra4-a1 Kb3-b2 Ra1-a8 Ne4-d6 Rf5-f8 Kb2-c2
Ra8-a4 Kc2-b3 Ra4-a1 Kb3-b2) +1.06/34 23} Bf8 {(Be7-f8 Nf4-g6 Kf7-g8 Nf3-d2
a5-a4 Nd2-e4 Ra8-a7 Kd1-c2 Ra7-f7 Bc1-f4 a4-a3 b2xa3 Rb8-a8 Bf4xh6 Ra8xa3
Ne4-f6+ Rf7xf6 e5xf6 g7xh6 Kc2-b2 Ra3-a8 f6-f7+ Kg8-g7 Ng6xf8+ Kg7xf8
Rg4-f4 Ra8-b8+ Kb2-c2) +0.58/23 43} 19. Ng6 {(Nf4-g6 Kf7-g8 Rg4-f4 Bc8-a6
Nf3-d2 Rb8-b7 Nd2-e4 Rb7-f7 Rf4-h4 a5-a4 Kd1-c2 Ba6-c8 Bc1-d2 a4-a3 b2-b3
Bc8-d7 f2-f4 Bd7-e8 Ne4-g3 Kg8-h7 Rh4-h1 Ra8-a7 Rh1-g1 Bf8-e7 Rg1-g2 Be7-f8
Bd2-c1 Bf8-e7 Rg2-h2 Kh7-g8 Rh2-h3 Kg8-h7 Rh3-h1 Be7-f8 Rh1-f1 Bf8-e7
Rf1-g1 Be7-f8 Rg1-h1 Bf8-e7 Ng3-e4 Rf7-f5) +1.16/36 37} Ke8 {(Kf7-e8 Rg4-f4
Bf8-e7 Rf4-g4 Ra8-a7 Nf3-d2 Be7-f8 Nd2-e4 a5-a4 Kd1-c2 Ra7-f7 f2-f4 Rf7-a7
Ng6xf8 Ke8xf8) +0.46/26 38} 20. Rf4 {(Rg4-f4 Bf8-e7 Nf3-d2 a5-a4 Nd2-e4
Ra8-a7 Kd1-c2 Rb8-a8 Bc1-d2 Ra7-b7 Ng6xe7 Rb7xe7 Bd2-e1 Re7-d7 Ne4xc5
Rd7-f7 Rf4xd4 Rf7-f5 Rd4-h4 Rf5xe5 Nc5-e4 Ke8-f8 Be1-c3 Re5-f5 f2-f4 Rf5-f7
Ne4-d6 Rf7-d7 Bc3-e5 Kf8-g8 Rh4-g4 Kg8-h7 Kc2-c3 c6-c5 Rg4-g6 Rd7-e7 Nd6-e4
Bc8-b7 Ne4xc5 Bb7-f3 Rg6-g1 Bf3xh5 Be5-d6 Re7-e8 Nc5-d7 Bh5-g6 c4-c5)
+3.02/35 23} Be7 {(Bf8-e7 b2-b3 a5-a4 Ng6xe7 Ke8xe7 Bc1-a3 Ra8-a5 b3xa4
Ke7-e8 Nf3xd4 c5xd4 Rf4-f8+ Ke8-d7 Ba3-d6 Rb8-b7 Rf8-f7+ Kd7-d8 Rf7-f8+
Kd8-d7) 0.00/27 56} 21. Nd2 {(Nf3-d2 a5-a4 Nd2-e4 Ra8-a7 Kd1-c2 Ra7-d7
Ng6xe7 Rd7xe7 Bc1-d2 Re7-d7 Bd2-e1 Rb8-b7 Ne4xc5 Rb7-c7 Be1-a5 Rd7-f7
Rf4xd4 Rf7xf2+ Kc2-c3 Rc7-d7 Nc5xd7 Bc8xd7 Rd4-h4 Rf2-f5 Ba5-c7 c6-c5
Bc7-d6 Bd7-c6 Bd6xc5 Bc6-f3 Bc5-d6 Rf5xh5 Rh4-f4 Rh5-f5 Rf4xf5 e6xf5 d3-d4
h6-h5 d4-d5 h5-h4 e5-e6 g7-g5 Kc3-d4 f5-f4) +3.07/34 18} a4 {(a5-a4 Ng6xe7
Ke8xe7) +0.22/25 29} 22. Ne4 {(Nd2-e4 Rb8-b7 Kd1-c2 Rb7-d7 Bc1-d2 Rd7-b7
Ng6xe7 Rb7xe7 Bd2-e1 Re7-d7 Ne4xc5 Rd7-f7 Rf4xd4 Rf7-f5 Rd4-h4 Rf5xe5
Nc5-e4 Ke8-f8 Be1-c3 Re5-f5 f2-f4 Rf5-f7 Ne4-d6 Rf7-a7 Bc3-d4 Ra7-d7 Bd4-e5
Rd7-e7 Kc2-c3 Bc8-d7 Nd6-e4 Re7-f7 Rh4-g4 Bd7-e8 Ne4-c5 Kf8-g8 Nc5xe6
Ra8-a7 Rg4-g1 Rf7-e7) +3.27/35 23} Ra7 {(Ra8-a7 Ng6xe7 Ke8xe7 Kd1-c2 Rb8-a8
a2-a3 Ra8-b8 Bc1-d2 Ra7-b7 Ne4-d6 Rb7xb2+ Kc2-d1 Rb2-b1+ Kd1-e2 Rb1-b2
Ke2-d1) 0.00/24 29} 23. Kc2 {(Kd1-c2 Rb8-a8 Bc1-d2 Ra7-b7 Ng6xe7 Rb7xe7
Bd2-e1 Re7-d7 Ne4xc5 Rd7-f7 Rf4xd4 Rf7-f5 Rd4-h4 Rf5-f3 Rh4-h2 Ke8-f7
Be1-d2 Kf7-g8 Kc2-c3 Rf3-f5 f2-f4 Rf5-f7 Bd2-c1 Kg8-h8 Bc1-e3 Kh8-h7 Rh2-h1
Bc8-d7 Rh1-g1 Rf7-e7 Be3-f2 Re7-f7 Rg1-f1 Bd7-c8 Bf2-e3 Kh7-h8 Rf1-h1
Kh8-h7 Rh1-h2 Kh7-g8 Rh2-h4 Kg8-h7 Nc5-e4 Bc8-d7 Ne4-d6 Rf7-f8 Be3-c5
Bd7-e8) +3.22/37 17} a3 {(a4-a3 b2xa3 Rb8-b7 Ng6xe7 Rb7xe7 Kc2-b2 Re7-b7+
Kb2-a1 Rb7-e7 Ka1-b1 Ra7-a8 Ne4-d6+ Ke8-d8 Rf4-f8+ Kd8-c7 Kb1-c2 Re7-d7
Rf8-g8 Bc8-b7 Nd6-e8+ Kc7-b6 Rg8xg7 Rd7xg7 Ne8xg7) -0.18/26 27} 24. b3
{(b2-b3 Rb8-a8 f2-f3 Ra7-d7 Bc1-d2 Bc8-b7 Bd2-e1 Ke8-d8 Ng6xe7 Kd8xe7
Ne4-d6 Rd7xd6 Be1-h4+ Ke7-e8 e5xd6 Bb7-c8 Bh4-e7 e6-e5 Rf4-f8+ Ke8-d7
Rf8-f7 Kd7-e6 Rf7xg7 Bc8-d7 Rg7-g6+ Ke6-f7 Rg6xh6 Ra8-g8 Rh6-f6+ Kf7-g7
Rf6-g6+ Kg7-f7 Rg6xg8 Kf7xg8 Be7-f6 Kg8-h7 Bf6-g5 Kh7-g8 f3-f4 e5xf4 Bg5xf4
Bd7-f5) +6.01/32 22} Rba8 {(Rb8-a8 Ng6xe7 Ra7xe7 Ne4-d6+ Ke8-d7 Rf4-f8
Kd7-c7 Bc1xa3 Ra8xa3 Rf8xc8+ Kc7-d7 Kc2-b2 Ra3-a6 Rc8-g8 Kd7-c7 a2-a4
Ra6-a5 Kb2-c2 Ra5-a6 Kc2-d2 Ra6-a5 Kd2-d1 Ra5-a6 Kd1-e2 Ra6-a5 Nd6-e8+
Kc7-d8 Ne8xg7+ Kd8-d7 Ke2-f3 Re7-f7+ Kf3-g3 Kd7-e7) -0.36/27 22} 25. Bd2
{(Bc1-d2 Bc8-d7 f2-f3 Ke8-d8 Rf4-f7 Bd7-e8 Rf7xg7 Be8xg6 h5xg6 Be7-f8
Rg7-g8 Kd8-c7 g6-g7 Bf8xg7 Rg8xg7+ Kc7-b6 Rg7-g6 Ra7-h7 b3-b4 h6-h5 Ne4xc5
h5-h4 Bd2-f4 h4-h3 Bf4-h2 Rh7-h8 Nc5xe6 Rh8-g8 Rg6-g4 Rg8xg4 f3xg4 Ra8-g8
Kc2-b3 Rg8xg4 Ne6-f4 Kb6-b7 e5-e6 Kb7-c8 Kb3xa3 Rg4-g5 Ka3-b3 Rg5-e5 a2-a4
Re5-e1 b4-b5 c6xb5 c4xb5 Re1-b1+ Kb3-c4) +6.67/32 25} Rb7 {(Ra7-b7 Ng6xe7
Rb7xe7 Bd2-c1 Re7-d7 Rf4-f3 Rd7-e7 Ne4-d6+ Ke8-d8 Rf3-f8+ Kd8-c7 Bc1xa3
Ra8xa3 Rf8xc8+) -0.36/25 21} 26. f3 {(f2-f3 Rb7-d7 Bd2-e1 Ke8-d8 Rf4-f7
Be7-g5 Rf7-f8+ Kd8-c7 f3-f4 Ra8-a7 f4xg5 h6xg5 Ne4xg5 Rd7-d8 Rf8xd8 Kc7xd8
Be1-h4 Kd8-c7 Ng5-e4 Bc8-d7 Bh4-e7 Bd7-e8 Be7xc5 Ra7-a8 Bc5-d6+ Kc7-b7
Ne4-c5+ Kb7-a7 Nc5xe6 Be8xg6 h5xg6 Ra8-h8 b3-b4 Rh8-h1 Kc2-b3 Rh1-h2
Bd6-c5+ Ka7-a6 Bc5xd4 Rh2-d2 Ne6-c5+ Ka6-a7) +7.69/30 34} Rba7 {(Rb7-a7
Ng6xe7 Ra7xe7 Bd2-e1 Re7-d7 Be1-h4 Bc8-a6 Ne4-d6+ Rd7xd6 e5xd6 Ra8-a7
Bh4-e7 Ra7xe7 d6xe7 Ke8xe7 Rf4-g4 Ke7-f6 Rg4-g6+ Kf6-f7 Kc2-d2 Ba6-c8
Kd2-c1 Bc8-d7 Kc1-d1 e6-e5 Kd1-e2 Bd7-e6 Ke2-d2) -1.33/25 19} 27. Be1
{(Bd2-e1 Bc8-a6 Kc2-b1 Ba6-c8 Ng6xe7 Ra7xe7 Ne4-d6+ Ke8-d7 Be1-h4 g7-g5
h5xg6/ep Re7-g7 Nd6-e4 Bc8-b7 Ne4xc5+ Kd7-e8 Rf4-f6 Bb7-c8 f3-f4 Rg7-e7
Kb1-c2 Ra8-b8 Nc5-e4 c6-c5 Ne4xc5 h6-h5 Bh4-g5 Re7-g7 Nc5-e4 h5-h4 f4-f5
e6xf5 Ne4-d6+ Ke8-d7 Nd6xf5 Rg7xg6 e5-e6+ Kd7-c7 Rf6xg6 Kc7-b7 Nf5-d6+
Kb7-a8 e6-e7) +8.38/31 19} Ba6 {(Bc8-a6 Ng6xe7 Ra7xe7) -1.33/23 18} 28. Kb1
{(Kc2-b1 Ba6-c8 Ng6xe7 Ra7xe7 Ne4-d6+ Ke8-d7 Be1-h4 g7-g5 h5xg6/ep Re7-g7
Nd6-e4 Bc8-b7 Ne4xc5+ Kd7-e8 Rf4-f6 Bb7-c8 f3-f4 Rg7-e7 Nc5-e4 Bc8-a6
Kb1-c2 c6-c5 Ne4xc5 Ba6-c8 Kc2-d2 h6-h5 Kd2-c2 Ra8-b8 Bh4-g5 Re7-g7 Nc5xe6
Bc8xe6 Rf6xe6+ Ke8-d7 f4-f5 h5-h4 Re6-a6 Rg7-g8 e5-e6+ Kd7-c7 Bg5-f4+
Kc7-b7 Bf4xb8) +8.65/31 12} Bc8 {(Ba6-c8 Ng6xe7 Ra7xe7 Kb1-c2) -1.33/24 17}
29. Nxe7 {(Ng6xe7 Ra7xe7 Ne4-d6+ Ke8-d7 Be1-h4 g7-g5 h5xg6/ep Re7-g7 Nd6-e4
Bc8-a6 Ne4xc5+ Kd7-e8 Rf4-f6 Ba6-c8 f3-f4 Ra8-a7 Nc5xe6 Rg7-g8 Ne6xd4
Ra7-d7 Rf6xc6 Bc8-b7 Rc6-e6+ Ke8-f8 Nd4-f5 Rd7xd3 Nf5-d6 Rd3-d1+ Kb1-c2
Rd1xd6 e5xd6 Bb7-c8 f4-f5 Rg8xg6 Re6xg6 Bc8xf5+ Kc2-c3 Kf8-e8 Rg6xh6 Ke8-d7
c4-c5 Bf5-b1 Kc3-b4 Kd7-c6 Kb4xa3 Bb1-f5 Ka3-b4 Bf5-g4 a2-a4 Kc6-d5)
+9.44/30 17} Rxe7 {(Ra7xe7 Ne4-d6+ Ke8-d7 Be1-h4 g7-g5 h5xg6/ep Re7-g7
Nd6-e4 Kd7-c7) -4.49/23 16} 30. Nd6+ {(Ne4-d6+ Ke8-d7 Be1-h4 g7-g5 h5xg6/ep
Re7-g7 Nd6-e4 Bc8-b7 Ne4xc5+ Kd7-e8 Rf4-f6 Bb7-c8 f3-f4 Rg7-e7 Nc5-e4
Bc8-a6 Kb1-c2 Re7-g7 f4-f5 e6xf5 Ne4-d6+ Ke8-d7 Nd6xf5 Rg7xg6 e5-e6+ Kd7-c7
Rf6xg6 Ra8-e8 Nf5-g7 Re8-g8 e6-e7 Kc7-b6 b3-b4 Kb6-a7 Ng7-e6 Rg8xg6 e7-e8Q
Rg6-g2+ Kc2-b3 Rg2-d2 Qe8-d7+ Ba6-b7 Qd7xd4+ c6-c5) +10.15/31 30} Kd7
{(Ke8-d7 Be1-h4 g7-g5 h5xg6/ep Re7-g7 Nd6-e4 Kd7-c7 Rf4-f7+ Rg7xf7 g6xf7
Bc8-d7 Bh4-e7) -4.79/26 20} 31. Bh4 {(Be1-h4 g7-g5 h5xg6/ep Re7-g7 Nd6-e4
Bc8-b7 Ne4xc5+ Kd7-e8 Rf4-f6 Bb7-c8 f3-f4 Ra8-a7 Nc5xe6 Rg7-g8 Ne6xd4
Ra7-d7 Rf6-e6+ Ke8-f8 Re6xc6 Bc8-b7 Rc6-f6+ Kf8-e8 Rf6-e6+ Ke8-f8 Nd4-f5
Rd7xd3 Nf5-d6 Rd3-d1+ Kb1-c2 Rd1xd6 e5xd6 Bb7-c8 f4-f5 Rg8xg6 Re6xg6
Bc8xf5+ Kc2-c1 Bf5-c8 Bh4-f6 Kf8-f7 Rg6xh6 Bc8-f5 Bf6-e5 Bf5-g4 Rh6-f6+
Kf7-e8 Rf6-g6 Bg4-f5 Rg6-g7 Bf5-d7 Rg7-e7+ Ke8-d8) +10.55/33 20} g5 {(g7-g5
h5xg6/ep) -4.79/26 19} 32. hxg6 {(h5xg6/ep Re7-g7 Nd6-e4 Bc8-b7 Ne4xc5+
Kd7-e8 Rf4-f6 Bb7-c8 f3-f4 Ra8-a7 Nc5xe6 Rg7-g8 Ne6xd4 Ra7-d7 Rf6xc6 Bc8-b7
Rc6-e6+ Ke8-f8 Nd4-f5 Rd7xd3 Nf5-d6 Rd3-d1+ Kb1-c2 Rd1xd6 e5xd6 Bb7-c8
f4-f5 Rg8xg6 Re6xg6 Bc8xf5+ Kc2-c1 Bf5-c8 Bh4-f6 Kf8-f7 Rg6xh6 Kf7-e6
Bf6-d4+ Ke6-d7 Bd4-c5 Kd7-c6 Bc5xa3 Kc6-b7 Rh6-h7+ Kb7-b8 d6-d7 Bc8xd7
Rh7xd7 Kb8-a8 Rd7-d8+ Ka8-a7) +10.70/32 30} Rg7 {(Re7-g7 Nd6-e4 Kd7-c7
Rf4-f7+ Rg7xf7 g6xf7 Bc8-d7 Bh4-e7) -4.89/27 18} 33. Ne4 {(Nd6-e4 Bc8-b7
Ne4xc5+ Kd7-e8 Rf4-f6 Bb7-c8 f3-f4 Ra8-a7 Nc5xe6 Rg7-g8 Ne6xd4 Ra7-d7
Rf6-e6+ Ke8-f8 Re6xc6 Bc8-b7 Rc6-f6+ Kf8-e8 Rf6-e6+ Ke8-f8 Nd4-f5 Rd7xd3
Nf5-d6 Rd3-d1+ Kb1-c2 Rd1xd6 e5xd6 Bb7-c8 f4-f5 Rg8xg6 Re6xg6 Bc8xf5+
Kc2-c1 Bf5-c8 Bh4-f6 h6-h5 Rg6-g7 h5-h4 d6-d7 Bc8xd7 Rg7xd7 h4-h3 Rd7-h7
h3-h2 Kc1-c2 h2-h1Q) +10.30/29 14} Kc7 {(Kd7-c7) -4.89/27 17} 34. Rf7+
{(Rf4-f7+ Rg7xf7 g6xf7 Bc8-d7 Bh4-e7 Ra8-h8 Ne4-f6 Bd7-e8 f7xe8Q Rh8xe8
Nf6xe8+ Kc7-d7 Be7-f8 Kd7xe8 Bf8xh6 Ke8-f7 Kb1-c2 Kf7-g6 Bh6-c1 Kg6-f5
Bc1xa3 Kf5xe5 Ba3xc5 Ke5-f4 a2-a4 Kf4xf3 Kc2-d2 Kf3-f4 a4-a5 Kf4-f5 a5-a6
Kf5-f4 Kd2-c2 Kf4-f5 a6-a7 e6-e5 a7-a8Q e5-e4 Qa8xc6 e4xd3+ Kc2xd3 Kf5-e5
Qc6-e4+ Ke5-f6 b3-b4) +13.38/30 12} Rxf7 {(Rg7xf7 g6xf7 Bc8-d7 Bh4-e7
Ra8-h8 Be7xc5 Bd7-e8 f7-f8Q Rh8xf8 Bc5xf8 h6-h5 Ne4-g5 h5-h4 Ng5xe6+ Kc7-c8
Ne6-f4 Be8-d7 Bf8xa3 h4-h3 Nf4xh3 Bd7xh3 Ba3-c5 Kc8-d7 Bc5xd4 Kd7-e6 f3-f4
Bh3-f5 Kb1-c2 Bf5-g6 a2-a4 Ke6-f5 Bd4-e3 Kf5-g4 e5-e6 Kg4-f3 Kc2-d2)
-5.11/28 16} 35. gxf7 {(g6xf7 Bc8-d7 Bh4-e7 Ra8-h8 Ne4-f6 Bd7-e8 f7xe8Q
Rh8xe8 Nf6xe8+ Kc7-d7 Be7-f8 Kd7xe8 Bf8xh6 Ke8-e7 Bh6-c1 Ke7-f7 Bc1xa3
Kf7-g6 Ba3xc5 Kg6-f5 a2-a4 Kf5xe5 Kb1-c2 Ke5-f5 a4-a5 Kf5-f4 a5-a6 Kf4xf3
a6-a7 Kf3-e3 a7-a8Q Ke3-f4 Bc5xd4 c6-c5 Bd4xc5 e6-e5 Qa8-e4+ Kf4-g5 Qe4xe5+
Kg5-g6) +14.93/33 47} Bd7 {(Bc8-d7 Bh4-e7 Ra8-h8 Be7xc5 Bd7-e8 f7-f8Q
Rh8xf8 Bc5xf8 h6-h5 Ne4-g5 h5-h4) -5.17/30 15} 36. Be7 {(Bh4-e7 Ra8-h8
Ne4-f6 Bd7-e8 f7xe8Q Rh8xe8 Nf6xe8+ Kc7-d7 Be7-f8 Kd7xe8 Bf8xh6 Ke8-f7
Kb1-c2 Kf7-e7 Bh6-c1 Ke7-f7 Bc1xa3 Kf7-e7 Ba3xc5+ Ke7-e8 Kc2-b1 Ke8-f7
a2-a4 Kf7-g6 Kb1-c2 Kg6-g5 a4-a5 Kg5-f4 a5-a6 Kf4xe5 a6-a7 Ke5-f4 a7-a8Q
Kf4xf3 Bc5xd4 Kf3-g4 Qa8-g8+ Kg4-f3) +16.39/31 23} Rh8 {(Ra8-h8 Be7xc5
Bd7-e8 f7-f8Q Rh8xf8 Bc5xf8 h6-h5 Ne4-g5 h5-h4 Ng5xe6+) -5.19/31 15} 37.
Nf6 {(Ne4-f6 Bd7-e8 f7xe8Q) +17.51/29 69} Be8 {(Bd7-e8 f7xe8N+ Rh8xe8
Nf6xe8+ Kc7-d7 Be7xc5 Kd7xe8 Bc5xa3 Ke8-d7 Ba3-c5 h6-h5 Bc5xd4 h5-h4 a2-a4
h4-h3 Bd4-g1) -5.29/24 9} 38. fxe8=Q {(f7xe8Q Rh8xe8 Nf6xe8+ Kc7-d7 Be7-f8
Kd7xe8 Bf8xh6 Ke8-f7 Kb1-c2 Kf7-e8 Bh6-c1 Ke8-e7 Bc1xa3 Ke7-d7 Ba3xc5
Kd7-c8 a2-a4 Kc8-c7 f3-f4 Kc7-d8 a4-a5 Kd8-e8 a5-a6 Ke8-f7 a6-a7 Kf7-g6
a7-a8Q Kg6-f5 Qa8xc6 Kf5xf4 Bc5xd4 Kf4-f5 Qc6-f3+ Kf5-g5 Qf3-f6+ Kg5-h5
Qf6xe6) +19.15/26 23} Rxe8 {(Rh8xe8 Nf6xe8+ Kc7-d7 Be7xc5 Kd7xe8 Bc5xa3
Ke8-d7 Ba3-c5 Kd7-c7 Bc5xd4 Kc7-b7 a2-a4 Kb7-a6 Bd4-f2 Ka6-a5 Bf2-e1+
Ka5-b6 Kb1-c2 c6-c5 Be1-f2 Kb6-c6 a4-a5 h6-h5 d3-d4 c5xd4 b3-b4 Kc6-b7
b4-b5 h5-h4 a5-a6+ Kb7-a7 Bf2xd4+ Ka7-b8 a6-a7+ Kb8-b7 b5-b6 h4-h3 Bd4-g1
Kb7-a8) -7.54/30 9} 39. Nxe8+ {(Nf6xe8+ Kc7-d7 Be7-f8) +20.20/28 58} Kd7
{(Kc7-d7 Be7xc5 Kd7xe8 Bc5xa3 Ke8-d7 Ba3-c5 h6-h5 Bc5xd4 h5-h4 a2-a4)
-8.26/35 9} 40. Bf8 {(Be7-f8 Kd7-d8 Ne8-f6 Kd8-c7 Bf8xh6 Kc7-d8 Bh6-f8
Kd8-c8 Nf6-e8 Kc8-d8 Ne8-g7 Kd8-c8 Bf8xc5 Kc8-b8 Ng7xe6 Kb8-c8 Ne6xd4
Kc8-d7 e5-e6+ Kd7-d8 e6-e7+ Kd8-e8 Kb1-c2 Ke8-f7 Nd4-f5 Kf7-e8 Nf5-g7+
Ke8-f7 e7-e8Q+ Kf7xg7 Qe8xc6) +21.50/25 9} Kxe8 {(Kd7xe8 Bf8xh6 Ke8-d7
Bh6-c1 Kd7-c7 Bc1xa3 Kc7-b6 Kb1-c2 Kb6-b7 Ba3xc5 Kb7-a6 a2-a4 Ka6-a5 Bc5xd4
Ka5-b4 Bd4-c3+ Kb4-c5 b3-b4+ Kc5-b6 a4-a5+ Kb6-a6 Bc3-e1 Ka6-a7 Be1-h4
Ka7-a6 Kc2-b3 Ka6-b7 b4-b5 c6xb5 c4xb5 Kb7-c8 a5-a6 Kc8-c7 a6-a7 Kc7-b7
b5-b6 Kb7-a8) -9.09/34 9} 41. Bxh6 {(Bf8xh6 Ke8-e7 Bh6-g5+ Ke7-e8 Bg5-f4
Ke8-f7 Bf4-c1 Kf7-e7 Kb1-c2 Ke7-f7 Bc1xa3 Kf7-f8 f3-f4 Kf8-e8 Ba3xc5 Ke8-d7
a2-a4 Kd7-d8 a4-a5 Kd8-d7 a5-a6 Kd7-c7 Kc2-b1 Kc7-c8 b3-b4 Kc8-c7 Kb1-c2
Kc7-b8 Kc2-d1 Kb8-c7) +23.55/28 15} Kd7 {(Ke8-d7 Bh6-c1 Kd7-c7 Bc1xa3
Kc7-b6) -15.16/34 9} 42. Bc1 {(Bh6-c1 Kd7-e7 Kb1-c2 Ke7-f7 Bc1xa3 Kf7-g6
Ba3xc5 Kg6-g5 a2-a4 Kg5-f4 a4-a5 Kf4xe5 a5-a6 Ke5-f6 a6-a7 Kf6-g7 a7-a8Q
e6-e5 Qa8-f8+ Kg7-g6 Qf8-e8+ Kg6-f5 Qe8-f7+ Kf5-g5 Qf7-g7+ Kg5-f4 Qg7-f6+
Kf4-g3 Qf6xe5+ Kg3xf3 Qe5-e4+ Kf3-f2 Bc5xd4+ Kf2-g3) +250.00/27 1} Kc7
{(Kd7-c7 Bc1xa3 Kc7-c8 Kb1-c2 Kc8-d7 Kc2-d2 Kd7-e7 Ba3xc5+ Ke7-f7 Bc5xd4
c6-c5 Bd4xc5 Kf7-g7 a2-a4 Kg7-g6 a4-a5 Kg6-f5 Kd2-c2 Kf5xe5 a5-a6 Ke5-f4
a6-a7 Kf4xf3 a7-a8Q+ Kf3-g3 Kc2-c3 e6-e5 Qa8-e4 Kg3-h2 Qe4xe5+ Kh2-g2 b3-b4
Kg2-h3) -15.78/32 9} 43. Bxa3 {(Bc1xa3 Kc7-d8 Ba3xc5 Kd8-c8 Kb1-b2 Kc8-d7
a2-a4 Kd7-c7 Kb2-b1 Kc7-b7 f3-f4 Kb7-c8 Kb1-c2 Kc8-b8 a4-a5 Kb8-b7 Kc2-d2
Kb7-a6 b3-b4 Ka6-b7 Kd2-c2 Kb7-a8 a5-a6 Ka8-b8 Bc5xd4 c6-c5 Bd4xc5 Kb8-c7
b4-b5 Kc7-c8 Kc2-b1 Kc8-d8 a6-a7) +250.00/32 1} Kb6 {(Kc7-b6 Kb1-c2 Kb6-c7
Ba3xc5 Kc7-d7 a2-a4 Kd7-c7) -16.75/31 9} 44. Kc2 {(Kb1-c2 Kb6-c7 Ba3xc5
Kc7-c8 Kc2-b1 Kc8-b8 a2-a4 Kb8-c7 Kb1-c2 Kc7-b7 f3-f4 Kb7-c8 Kc2-d1 Kc8-b7
Kd1-c1 Kb7-c7 a4-a5 Kc7-b7 Kc1-c2 Kb7-c8 a5-a6 Kc8-b8 Kc2-d2 Kb8-c8 a6-a7
Kc8-b7 Kd2-c2 Kb7-a8 b3-b4 Ka8-b7 f4-f5) +250.00/31 1} Kb7 {(Kb6-b7 Ba3xc5
Kb7-c7 Bc5xd4 Kc7-b7 a2-a4) -19.06/29 9} 45. Bxc5 {(Ba3xc5 Kb7-c8 a2-a4
Kc8-b7 Kc2-d2 Kb7-b8 a4-a5 Kb8-b7 f3-f4 Kb7-c8 a5-a6 Kc8-b8 a6-a7+ Kb8-a8
Kd2-c1 Ka8-b7 b3-b4 Kb7-a8 Kc1-c2 Ka8-b7 f4-f5 e6xf5 e5-e6 Kb7-c7 a7-a8Q
f5-f4 e6-e7 Kc7-d7 e7-e8Q+ Kd7-c7 Qe8xc6+) +M16/31 4} Kc7 {(Kb7-c7 Bc5xd4
Kc7-b7 a2-a4 Kb7-c7 b3-b4 c6-c5 Bd4xc5 Kc7-c6 b4-b5+ Kc6xc5 a4-a5 Kc5-d4
b5-b6 Kd4-e3 b6-b7 Ke3xf3 b7-b8Q Kf3-g3 Qb8-g8+ Kg3-h2 Qg8xe6 Kh2-g3)
-20.62/27 9} 46. a4 {(a2-a4 Kc7-c8 a4-a5 Kc8-b7 f3-f4 Kb7-b8 a5-a6 Kb8-c7
Kc2-b2 Kc7-b8 Kb2-b1 Kb8-a8 Kb1-c2 Ka8-b8 f4-f5 Kb8-c7 f5xe6 Kc7-c8 b3-b4
Kc8-b8 e6-e7 Kb8-c8 e7-e8Q+ Kc8-c7 a6-a7 Kc7-b7 Qe8-b8+ Kb7-a6 a7-a8Q+)
+M15/30 2} Kb7 {(Kc7-b7 Bc5xd4 Kb7-c7 b3-b4 c6-c5 Bd4xc5) -21.52/27 9} 47.
f4 {(f3-f4 Kb7-c7 a4-a5 Kc7-b8 a5-a6 Kb8-c7 a6-a7 Kc7-b7 Kc2-d1 Kb7-a8
f4-f5 e6xf5 e5-e6 Ka8-b7 e6-e7 f5-f4 e7-e8Q f4-f3 a7-a8Q+ Kb7-c7 Qa8xc6+)
+M11/29 5} Kc7 {(Kb7-c7 a4-a5 Kc7-b7 Bc5xd4 Kb7-a6 f4-f5 e6xf5 e5-e6 Ka6xa5
b3-b4+ Ka5-a6 e6-e7 c6-c5 e7-e8Q c5xd4 Qe8-a8+ Ka6-b6 b4-b5 Kb6-c7 Qa8-c6+
Kc7-d8 b5-b6 Kd8-e7 Qc6-c7+ Ke7-e6 Qc7-c8+ Ke6-f6 Qc8-d8+ Kf6-g6 Qd8-d6+
Kg6-g5 b6-b7 f5-f4 b7-b8Q) -18.24/22 9} 48. a5 {(a4-a5 Kc7-b8 f4-f5 e6xf5
e5-e6 Kb8-c8 a5-a6 Kc8-d8 a6-a7 Kd8-c7 a7-a8Q f5-f4 Qa8-a7+ Kc7-c8 Bc5-b6
f4-f3 Qa7-a8+) +M9/27 9} Kb7 {(Kc7-b7 Bc5xd4 c6-c5 Bd4xc5) -19.74/22 9} 49.
f5 {(f4-f5 e6xf5 e5-e6 Kb7-c8 a5-a6 Kc8-d8 a6-a7 Kd8-c7 a7-a8Q f5-f4
Qa8-a7+ Kc7-c8 Bc5-b6 f4-f3 Qa7-a8+) +M8/26 4} exf5 {(e6xf5 e5-e6 Kb7-c7
a5-a6 Kc7-c8 a6-a7 Kc8-b7 e6-e7 f5-f4 e7-e8Q Kb7-c7 a7-a8Q f4-f3 Qa8xc6+)
-M7/20 9} 50. e6 {(e5-e6 Kb7-c8 a5-a6 Kc8-d8 a6-a7 Kd8-c7 a7-a8Q f5-f4
Qa8-a7+ Kc7-c8 Bc5-b6 f4-f3 Qa7-a8+) +M7/25 6} Kc7 {(Kb7-c7 a5-a6 Kc7-c8
a6-a7 Kc8-b7 e6-e7 f5-f4 e7-e8Q Kb7-c7 a7-a8Q f4-f3 Qa8xc6+) -M6/21 15} 51.
a6 {(a5-a6 f5-f4 a6-a7 Kc7-b7 e6-e7 Kb7-c7 e7-e8Q f4-f3 Qe8-f7+ Kc7-c8
a7-a8Q+) +M6/24 3} Kc8 {(Kc7-c8 a6-a7) -M5/22 14} 52. a7 {(a6-a7 Kc8-c7
a7-a8Q f5-f4 Qa8-a7+ Kc7-c8 Bc5-b6 f4-f3 Qa7-a8+) +M5/22 2} Kb7 {(Kc8-b7
e6-e7) -M4/22 14} 53. e7 {(e6-e7 Kb7-c7 e7-e8Q f5-f4 Qe8-e7+ Kc7-c8
a7-a8Q+) +M4/22 2} f4 {(f5-f4 e7-e8Q) -M3/20 13 Black resigns} *[/pgn]

[lithander]

Anyway, I'm excited to play around with this idea and see how it goes. I probably won't be going to much more extreme, but may try some different variations, all centered around adding more weights for different king positions.

I'm curious how it works out for you! I experimented with the idea before but didn't get it to work and blamed it on a too small dataset. I still use the one from Zurichess. In the short-term I'm planning to train Leorik up from the ground (start with Material-only PSTs and generate training data that way) and if that works out I would have no problem to generate a bigger dataset and try some more ambitious ideas.

But at that point it's also the question if more PSTs is really the most sensible approach or if it isn't better to go to a very simple NNUE. E.g. 64 * Pieces * Color = 768 inputs. Then a hidden layer of 64 or 128 fully connected weights. Doesn't strike me as much more complex than different sets of PSTs but probably more promising.

I have no clue about the details of NNUE though an it's sadly not widely discussed on these forums... I guess one step at a time right? Anyway, looking forward to your results!

[algerbrex]

Anyway, I'm excited to play around with this idea and see how it goes. I probably won't be going to much more extreme, but may try some different variations, all centered around adding more weights for different king positions.

I'm curious how it works out for you! I experimented with the idea before but didn't get it to work and blamed it on a too small dataset. I still use the one from Zurichess. In the short-term I'm planning to train Leorik up from the ground (start with Material-only PSTs and generate training data that way) and if that works out I would have no problem to generate a bigger dataset and try some more ambitious ideas.

But at that point it's also the question if more PSTs is really the most sensible approach or if it isn't better to go to a very simple NNUE. E.g. 64 * Pieces * Color = 768 inputs. Then a hidden layer of 64 or 128 fully connected weights. Doesn't strike me as much more complex than different sets of PSTs but probably more promising.

I have no clue about the details of NNUE though an it's sadly not widely discussed on these forums... I guess one step at a time right? Anyway, looking forward to your results!

All fair points!

I planned on using my extended dataset extended again with more self-play positions from Blunder's testing games, or using an Ethereal dataset to make sure I have plenty of training data.

And I'm definitely very tempted to start working on a simple NN, not even NNUE, as a way to start experimenting. It should be relatively straightforward I think. I'm more familiar with a lot of the math behind it so that shouldn't be a big issue. My initial approach was going to be to a 768 -> 16 -> 1 NN, but I want to experiment with the size of the 1 hidden layer. Which would mean I'd be tuning around ~800-900 weights, which is a couple hundred weights less than adding more king-dependent PSQT.

So I may actually just put my original idea on hold and get a simple NN up and running. The only thing I still need to do is figure out how backpropagation works so I can use it to tune the network. I'm not sure how different it is then gradient descent. I've found some good resources for understanding it though so hopefully this weekend I can get something crude working that I can train.

I suppose for an initial training I'll use 1M-2M positions and see how that does, since like I mentioned, I'm actually tuning around the same number of weights I am right now.

[algerbrex]

I haven't had much time to work on Blunder or browse this forum lately, as I've gotten quite busy between my studies, extracurricular responsibilities, and work. But I have had a little time to play around with the evaluation, and one idea I've settled on exploring more thoroughly is adding more PSQT, and their usage is dependent on the position of the king.

As a basic idea I opted for something pretty simple. I've added 12 new PSQT to Blunder, so 12 for the middlegame and 12 for the endgame. And the deciding factor between which set is used is which side the king's castled on. I've changed the evaluation and the tuner for the most part, but there are still a couple of tweaks I need to make before I can tune and test.

I suspect with the addition of these new tables, I might need to try bumping up my dataset from ~1M positions to something like ~1.25M or ~1.5M, just to get some more data to better tune all of the additional weights. But this idea seems like it should be a decent Elo gain in theory, as the position of the king, as is known, is a big determining factor in how a certain position should be evaluated.

Anyway, I'm excited to play around with this idea and see how it goes. I probably won't be going to much more extreme, but may try some different variations, all centered around adding more weights for different king positions.

[pgn][Event "Rook Vs knight Odds"]
[Site "DESKTOP-OFQ3C0P"]
[Date "2022.08.29"]
[Round "?"]
[White "Dragon-2.6.1-64bit-avx2"]
[Black "Blunder-8.5.5-avx2"]
[Result "1-0"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "rnbqkb1r/pppppppp/8/8/8/8/PPPPPPPP/1NBQKBNR w Kkq - 0 1"]
[Termination "normal"]
[PlyCount "106"]
[WhiteType "program"]
[BlackType "program"]

1. e4 {(e2-e4 c7-c5 Nb1-c3 e7-e6 Ng1-f3 d7-d5 e4xd5 e6xd5 Bf1-b5+ Nb8-c6
d2-d4 Bf8-e7 d4xc5 O-O Qd1xd5 Qd8xd5 Nc3xd5 Be7xc5 Bc1-e3 Bc5xe3 f2xe3
Kg8-h8 Ke1-e2 Ra8-b8 h2-h3 Bc8-f5 Bb5-d3 Bf5xd3+ c2xd3) -1.31/25 20} c5
{(c7-c5 Ng1-f3 Nb8-c6 Bf1-e2 g7-g6 d2-d4 c5xd4 Nf3xd4 Bf8-g7 Nd4-b3 O-O
Nb1-c3 d7-d6 O-O f7-f5 e4xf5 Bc8xf5 Bc1-e3 Bf5-e6 Be2-f3 Bg7xc3 b2xc3)
+1.13/21 31} 2. Nf3 {(Ng1-f3 e7-e6 Bf1-e2 d7-d5 e4-e5 Bc8-d7 O-O Nb8-c6
c2-c3 Bf8-e7 d2-d4 c5xd4 c3xd4 O-O Nb1-c3 f7-f6 Be2-d3 Bd7-e8 Nc3-e2 f6xe5
Nf3xe5 Be7-d6 Qd1-c2 Nc6xe5 d4xe5 Bd6xe5 Bd3xh7+ Kg8-h8 Bh7-d3 Be5-f6
a2-a3) -1.53/28 55} Nc6 {(Nb8-c6 Nb1-c3 e7-e6 a2-a3 Bf8-d6 g2-g3 O-O Bf1-g2
Bd6-e7 O-O Be7-f6 Rf1-e1 d7-d6 d2-d3 Nc6-d4 Bc1-f4 Qd8-b6 Nc3-a4 Nd4xf3+
Bg2xf3 Qb6-c7 Na4-c3 Bc8-d7) +1.16/22 32} 3. Bb5 {(Bf1-b5 d7-d5 O-O d5xe4
Nf3-e5 Bc8-d7 Bb5xc6 Bd7xc6 Ne5xc6 b7xc6 Qd1-e2 f7-f5 d2-d3 e4xd3 c2xd3
Qd8-d7 Rf1-e1 Ra8-d8 Nb1-d2 Qd7xd3 Qe2-e5 Qd3-d5 Qe5-c7 Qd5-d7 Qc7-e5
Ke8-f7 Nd2-f3 Kf7-g8 h2-h4 h7-h6 Qe5-e2) -1.51/28 19} e6 {(e7-e6 O-O Bf8-e7
Nb1-c3 O-O d2-d4 a7-a6 Bb5-e2 c5xd4 Nf3xd4 Nc6xd4 Qd1xd4) +1.24/19 33} 4.
Bxc6 {(Bb5xc6 b7xc6 d2-d3 Bf8-e7 h2-h4 d7-d6 e4-e5 c5-c4 d3xc4 O-O Nb1-c3
d6xe5 Nf3xe5 Qd8-c7 Qd1-e2 f7-f6 Ne5-d3 e6-e5 h4-h5 h7-h6 Qe2-e4 Bc8-e6
Qe4-g6 Be6-f7 Qg6-g4 Kg8-h8 Rh1-h3 Qc7-c8 Qg4xc8 Ra8xc8 b2-b3 Bf7-e6 Rh3-h1
Be6-f5 f2-f3 Bf5xd3 c2xd3 Be7-b4) -1.41/28 19} bxc6 {(b7xc6 e4-e5 Bc8-a6
d2-d3 c5-c4 d3-d4 h7-h6 a2-a3 Bf8-e7 c2-c3 Qd8-c7 Nb1-d2 c6-c5 Qd1-a4
Qc7-c6 Qa4xc6 d7xc6 d4xc5 Be7xc5 Nd2-e4 Bc5-b6 O-O) +1.40/22 34} 5. d3
{(d2-d3 d7-d6 e4-e5 d6xe5 c2-c4 f7-f6 Nb1-c3 Bf8-e7 Qd1-e2 O-O b2-b3 Bc8-d7
h2-h4 e5-e4 d3xe4 e6-e5 h4-h5 Bd7-g4 h5-h6 g7-g5 O-O Qd8-e8 Qe2-e3 Qe8-h5
Nf3-h2 Rf8-d8 Nc3-a4 Rd8-d4 f2-f3 Bg4-e6 Bc1-a3 Qh5xh6 Ba3xc5 Be7xc5 Na4xc5
Be6-c8) -1.43/32 95} d5 {(d7-d5 Nb1-d2 Bf8-d6 O-O O-O c2-c4 Ra8-b8 Nd2-b3
Bc8-a6 Qd1-e2 h7-h6 Bc1-d2 d5-d4 h2-h3 Qd8-d7 Rf1-b1 Rf8-e8 Rb1-d1 Bd6-e7)
+1.44/19 35} 6. c4 {(c2-c4 Bf8-e7 Nb1-c3 O-O O-O Bc8-d7 Qd1-e2 f7-f6 b2-b3
Bd7-e8 Nc3-a4 Be8-h5 Rf1-e1 Rf8-e8 Qe2-e3 Qd8-a5 Bc1-d2 Qa5-c7 h2-h3 e6-e5
Qe3-e2 Ra8-d8 Bd2-c1 Qc7-c8 g2-g4 Bh5-f7 Nf3-h4 Be7-f8 Bc1-e3 d5xc4 d3xc4)
-1.33/31 32} Qa5+ {(Qd8-a5+ Nb1-d2 Qa5xa2 Nf3-e5 Bf8-d6 Qd1-h5 Bd6xe5
Qh5xe5) +1.61/19 36} 7. Nc3 {(Nb1-c3 Bf8-e7 O-O O-O Rf1-e1 Qa5-b4 e4-e5
Bc8-a6 a2-a3 Qb4-a5 Qd1-e2 Ra8-b8 h2-h3 Ba6-c8 h3-h4 Qa5-c7 h4-h5 h7-h6
Qe2-c2 Kg8-h8 Nc3-a4 Bc8-d7 Bc1-f4 Rf8-d8 g2-g4 Bd7-e8 d3-d4 d5xc4 Na4xc5)
-0.88/30 34} d4 {(d5-d4 Qd1-a4 Qa5-a6 Qa4xa6 Bc8xa6 Nc3-a4 Ba6-b5 c4xb5
c6xb5) +1.70/22 37} 8. Qa4 {(Qd1-a4 Qa5-c7 Nc3-e2 f7-f6 e4-e5 f6xe5 Ne2-g3
e5-e4 Ng3xe4 Ra8-b8 b2-b3 e6-e5 Bc1-d2 Bf8-d6 Bd2-a5 Qc7-d7 O-O O-O Rf1-e1
h7-h6 h2-h3 Rf8-e8 Ba5-d2 Re8-e6 Bd2-c1 Rb8-b6 Qa4-a5 Rb6-a6 Qa5-d2 Qd7-e7
Ne4xd6 Qe7xd6 Qd2-e2 Re6-e8 Nf3xe5 Bc8-f5) -0.41/30 17} Qa6 {(Qa5-a6)
+1.70/21 39} 9. Qxa6 {(Qa4xa6 Bc8xa6 Nc3-e2 Ba6-c8 e4-e5 a7-a5 h2-h4 a5-a4
g2-g4 h7-h6 Ke1-d1 Bf8-e7 Ne2-f4 Bc8-d7 Nf3-d2 Rh8-g8 h4-h5 Be7-d8 Nf4-h3
Bd8-e7 Rh1-g1 Ke8-d8 g4-g5 h6xg5 Nh3xg5 Bd7-e8 Nd2-e4 Rg8-h8 Ne4-g3 Ra8-a6
Kd1-c2) +0.03/31 19} Bxa6 {(Bc8xa6 Nc3-e2 Bf8-e7 O-O O-O Bc1-f4 Ra8-c8)
+1.69/21 40} 10. Ne2 {(Nc3-e2 e6-e5 Nf3xe5 Bf8-d6 Ne5-f3 f7-f6 Ke1-d1
Ba6-c8 Kd1-c2 Bc8-d7 h2-h3 Ke8-d8 Bc1-d2 Kd8-c7 Bd2-a5+ Kc7-b7 Ne2-g3
Ra8-e8 e4-e5 f6xe5 Nf3-d2 Bd6-c7 Ba5xc7 Kb7xc7 Ng3-e4 Kc7-b6 Nd2-b3 Bd7-f5
Ne4xc5 Rh8-f8 f2-f3 h7-h5 a2-a3 h5-h4 Rh1-e1) +0.13/33 21} Be7 {(Bf8-e7 O-O
O-O) +1.66/21 42} 11. e5 {(e4-e5 Ba6-c8 h2-h4 O-O h4-h5 h7-h6 Ke1-d1 Bc8-d7
Nf3-d2 Rf8-b8 Kd1-c2 Rb8-b7 Ne2-f4 Ra8-b8 Nd2-e4 a7-a5 g2-g4 a5-a4 Rh1-g1
Kg8-h7 Rg1-g2 Rb8-f8 Rg2-g3 Rf8-b8 Rg3-h3 Rb8-a8 Rh3-h1 Rb7-b8 Rh1-g1
Rb8-b7 Bc1-d2 Ra8-b8 Rg1-b1 Bd7-e8 f2-f3) +0.32/35 52} h6 {(h7-h6 Ke1-d2
Ra8-b8 Kd2-c2 O-O Bc1-d2 Kg8-h7 Rh1-d1 Rf8-d8 b2-b3 Rd8-d7 h2-h3 Rd7-c7
Bd2-a5 Rc7-b7 Nf3-d2 Kh7-g6 Nd2-e4 Rb7-d7 Ba5-d2 Kg6-f5) +1.68/21 44} 12.
Kd1 {(Ke1-d1 Ba6-c8 b2-b3 Bc8-d7 h2-h4 Ke8-d8 h4-h5 Bd7-e8 Kd1-c2 a7-a5
a2-a4 Kd8-d7 Bc1-d2 Kd7-c7 Rh1-e1 Rh8-f8 Ne2-f4 Kc7-b7 Re1-h1 Kb7-c7 Bd2-c1
Kc7-c8 Rh1-h3 Kc8-d7 Nf4-e2 Rf8-h8 Ne2-g3 f7-f6 Rh3-h1 Rh8-h7 Ng3-e2 Rh7-h8
Bc1-d2 Rh8-f8 Ne2-g3) +0.26/33 37} f5 {(f7-f5 e5xf6/ep g7xf6 Kd1-c2 Ke8-f7
Ne2-g3 h6-h5 h2-h4 Ba6-c8 Bc1-f4 e6-e5 Bf4-d2 Bc8-g4 Rh1-e1 Ra8-b8 a2-a4
Kf7-g6 Ng3-e4 Rh8-g8 a4-a5 Bg4xf3 g2xf3) +1.66/21 47} 13. h4 {(h2-h4 g7-g6
Ne2-f4 Ke8-f7 h4-h5 g6xh5 Nf4xh5 Ba6-c8 Nh5-f6 a7-a5 a2-a4 Ra8-b8 Kd1-c2
Kf7-g6 Bc1-d2 Rb8-b7 Bd2-f4 Rb7-b4 Rh1-g1 Rb4-b7 b2-b3 Kg6-f7 Rg1-h1 Kf7-g6
Rh1-h3 Bc8-d7 Rh3-h4 Bd7-c8 Rh4-h1 Rb7-a7 Rh1-h3 Ra7-a8 Bf4-c1 Kg6-f7
Rh3-h1 Kf7-g7 Bc1-d2 Ra8-a7 Rh1-h2 Ra7-a8 g2-g3 Ra8-a7 Rh2-h4 Kg7-g6)
+0.74/39 22} Kf7 {(Ke8-f7 Kd1-c2 Ra8-d8 Bc1-d2 g7-g6 Kc2-d1 Rd8-a8 Kd1-c2
Ra8-g8 Kc2-d1 Rg8-b8 Kd1-c2 Ba6-b7 a2-a3 Bb7-a6 a3-a4) +1.49/21 50} 14. h5
{(h4-h5 g7-g5 h5xg6/ep+ Kf7xg6 Ne2-f4+ Kg6-f7 Nf4-h5 Ba6-c8 Nh5-f6 a7-a5
a2-a4 Kf7-g6 Kd1-c2 Ra8-a7 Bc1-g5 Ra7-b7 Bg5-f4 Bc8-d7 Rh1-h3 Bd7-c8 b2-b3
Bc8-d7 Rh3-h4 Kg6-g7 Rh4-h2 Rb7-a7 Rh2-h3 Ra7-b7 Rh3-h4 Bd7-c8 Nf6-h5+
Kg7-f7 Rh4-h2 Bc8-d7 Rh2-h3 Kf7-g6 Rh3-h1 Bd7-c8 Nh5-f6) +0.74/37 17} Rhb8
{(Rh8-b8 Kd1-c2 Ba6-c8 Ne2-f4 a7-a5 a2-a4 Be7-d8 b2-b3 Ra8-a7 Bc1-d2 Bc8-a6
Nf4-g6 Ra7-b7 Rh1-b1 Rb7-d7 Bd2-f4 Kf7-g8 Bf4-d2 Bd8-b6 Kc2-b2 Kg8-f7
Kb2-c2 Bb6-c7 Rb1-d1 Kf7-g8) +1.26/26 54} 15. Rg1 {(Rh1-g1 Ba6-c8 g2-g4
Bc8-d7 g4-g5 Be7xg5 Nf3xg5+ h6xg5 Rg1xg5 Rb8-b7 Kd1-c2 a7-a5 Ne2-f4 Ra8-h8
Nf4-g6 Rh8-b8 Rg5-g1 a5-a4 Rg1-h1 Rb8-g8 Rh1-h2 Rg8-b8 Rh2-g2 Rb8-d8 f2-f3
Rd8-a8 Rg2-g5 Rb7-b8 Rg5-g1 Rb8-b4 Rg1-g3 Rb4-b7 Rg3-g2 Ra8-b8 Rg2-g1
Rb8-a8 Rg1-h1 Ra8-b8 Rh1-h2 Rb8-a8 Ng6-f4) +0.57/37 43} Bc8 {(Ba6-c8 Kd1-c2
Rb8-b6 Ne2-f4 a7-a5 Nf4-g6 a5-a4 Ng6xe7 Kf7xe7 Nf3-h4 Ra8-b8 Nh4-g6+ Ke7-f7
Ng6-h8+ Kf7-g8 Nh8-g6 Bc8-d7 Rg1-h1 Kg8-f7 Rh1-d1 Rb6-b7) +1.32/24 55} 16.
Nf4 {(Ne2-f4 Bc8-d7 Kd1-c2 Rb8-b7 Nf3-d2 Bd7-e8 Rg1-h1 a7-a5 a2-a4 Ra8-b8
b2-b3 Be7-g5 g2-g3 Rb7-b4 Bc1-a3 Bg5xf4 g3xf4 Kf7-g8 Rh1-h3 Kg8-h7 Ba3xb4
Rb8xb4 Rh3-h2 Be8-d7 Kc2-b2 Bd7-e8 Rh2-h1 Be8-f7 Kb2-a2 Bf7-e8 Nd2-f1
Rb4-b8 Ka2-b2 Rb8-b7 Nf1-g3 Be8-f7 Kb2-a2 Bf7-e8 Ka2-a3 Be8-f7 Ng3-e2
Rb7-b8 Ka3-b2) +0.50/40 50} a5 {(a7-a5 Kd1-c2 Ra8-a7 Nf4-g6 a5-a4 Ng6xe7
Ra7xe7 Nf3-h4 Bc8-a6 Nh4-g6 Re7-b7 Rg1-d1 Kf7-e8 Rd1-f1 Rb7-b6) +1.32/24
50} 17. g4 {(g2-g4 a5-a4 g4xf5 e6xf5 e5-e6+ Kf7-g8 Nf4-g6 Rb8-b7 Rg1-e1
Be7-f6 Kd1-c2 Ra8-a7 Bc1-f4 Rb7-e7 Ng6xe7+ Ra7xe7 Bf4-d6 Re7xe6 Re1xe6
Bc8xe6 b2-b3 a4xb3+ Kc2xb3 Be6-f7 a2-a4 Bf7xh5 Nf3-e5 Bh5-d1+ Kb3-a3 Bf6-d8
Ne5xc6 Bd8-f6 Bd6xc5 h6-h5 Bc5xd4 h5-h4 Bd4xf6 g7xf6 Nc6-e7+ Kg8-f7 Ne7xf5
h4-h3 Ka3-b4 h3-h2 Nf5-g3 Bd1-e2 Kb4-c3) +0.89/35 24} fxg4 {(f5xg4 Rg1xg4
Be7-f8 Nf4-g6 Kf7-g8 Nf3-d2) +0.75/20 53} 18. Rxg4 {(Rg1xg4 Be7-f8 Nf4-g6
Kf7-g8 Rg4-f4 Bc8-a6 Nf3-d2 Rb8-b7 Rf4-h4 Rb7-f7 Nd2-e4 a5-a4 Ng6xf8 Rf7xf8
f2-f4 Ba6-c8 Ne4xc5 Ra8-a7 Kd1-c2 Rf8-f5 b2-b4 a4xb3/ep+ a2xb3 Ra7-a5
Nc5-e4 Kg8-h7 b3-b4 Ra5-a4 Kc2-b3 Ra4-a1 Kb3-b2 Ra1-a8 Ne4-d6 Rf5-f8 Kb2-c2
Ra8-a4 Kc2-b3 Ra4-a1 Kb3-b2) +1.06/34 23} Bf8 {(Be7-f8 Nf4-g6 Kf7-g8 Nf3-d2
a5-a4 Nd2-e4 Ra8-a7 Kd1-c2 Ra7-f7 Bc1-f4 a4-a3 b2xa3 Rb8-a8 Bf4xh6 Ra8xa3
Ne4-f6+ Rf7xf6 e5xf6 g7xh6 Kc2-b2 Ra3-a8 f6-f7+ Kg8-g7 Ng6xf8+ Kg7xf8
Rg4-f4 Ra8-b8+ Kb2-c2) +0.58/23 43} 19. Ng6 {(Nf4-g6 Kf7-g8 Rg4-f4 Bc8-a6
Nf3-d2 Rb8-b7 Nd2-e4 Rb7-f7 Rf4-h4 a5-a4 Kd1-c2 Ba6-c8 Bc1-d2 a4-a3 b2-b3
Bc8-d7 f2-f4 Bd7-e8 Ne4-g3 Kg8-h7 Rh4-h1 Ra8-a7 Rh1-g1 Bf8-e7 Rg1-g2 Be7-f8
Bd2-c1 Bf8-e7 Rg2-h2 Kh7-g8 Rh2-h3 Kg8-h7 Rh3-h1 Be7-f8 Rh1-f1 Bf8-e7
Rf1-g1 Be7-f8 Rg1-h1 Bf8-e7 Ng3-e4 Rf7-f5) +1.16/36 37} Ke8 {(Kf7-e8 Rg4-f4
Bf8-e7 Rf4-g4 Ra8-a7 Nf3-d2 Be7-f8 Nd2-e4 a5-a4 Kd1-c2 Ra7-f7 f2-f4 Rf7-a7
Ng6xf8 Ke8xf8) +0.46/26 38} 20. Rf4 {(Rg4-f4 Bf8-e7 Nf3-d2 a5-a4 Nd2-e4
Ra8-a7 Kd1-c2 Rb8-a8 Bc1-d2 Ra7-b7 Ng6xe7 Rb7xe7 Bd2-e1 Re7-d7 Ne4xc5
Rd7-f7 Rf4xd4 Rf7-f5 Rd4-h4 Rf5xe5 Nc5-e4 Ke8-f8 Be1-c3 Re5-f5 f2-f4 Rf5-f7
Ne4-d6 Rf7-d7 Bc3-e5 Kf8-g8 Rh4-g4 Kg8-h7 Kc2-c3 c6-c5 Rg4-g6 Rd7-e7 Nd6-e4
Bc8-b7 Ne4xc5 Bb7-f3 Rg6-g1 Bf3xh5 Be5-d6 Re7-e8 Nc5-d7 Bh5-g6 c4-c5)
+3.02/35 23} Be7 {(Bf8-e7 b2-b3 a5-a4 Ng6xe7 Ke8xe7 Bc1-a3 Ra8-a5 b3xa4
Ke7-e8 Nf3xd4 c5xd4 Rf4-f8+ Ke8-d7 Ba3-d6 Rb8-b7 Rf8-f7+ Kd7-d8 Rf7-f8+
Kd8-d7) 0.00/27 56} 21. Nd2 {(Nf3-d2 a5-a4 Nd2-e4 Ra8-a7 Kd1-c2 Ra7-d7
Ng6xe7 Rd7xe7 Bc1-d2 Re7-d7 Bd2-e1 Rb8-b7 Ne4xc5 Rb7-c7 Be1-a5 Rd7-f7
Rf4xd4 Rf7xf2+ Kc2-c3 Rc7-d7 Nc5xd7 Bc8xd7 Rd4-h4 Rf2-f5 Ba5-c7 c6-c5
Bc7-d6 Bd7-c6 Bd6xc5 Bc6-f3 Bc5-d6 Rf5xh5 Rh4-f4 Rh5-f5 Rf4xf5 e6xf5 d3-d4
h6-h5 d4-d5 h5-h4 e5-e6 g7-g5 Kc3-d4 f5-f4) +3.07/34 18} a4 {(a5-a4 Ng6xe7
Ke8xe7) +0.22/25 29} 22. Ne4 {(Nd2-e4 Rb8-b7 Kd1-c2 Rb7-d7 Bc1-d2 Rd7-b7
Ng6xe7 Rb7xe7 Bd2-e1 Re7-d7 Ne4xc5 Rd7-f7 Rf4xd4 Rf7-f5 Rd4-h4 Rf5xe5
Nc5-e4 Ke8-f8 Be1-c3 Re5-f5 f2-f4 Rf5-f7 Ne4-d6 Rf7-a7 Bc3-d4 Ra7-d7 Bd4-e5
Rd7-e7 Kc2-c3 Bc8-d7 Nd6-e4 Re7-f7 Rh4-g4 Bd7-e8 Ne4-c5 Kf8-g8 Nc5xe6
Ra8-a7 Rg4-g1 Rf7-e7) +3.27/35 23} Ra7 {(Ra8-a7 Ng6xe7 Ke8xe7 Kd1-c2 Rb8-a8
a2-a3 Ra8-b8 Bc1-d2 Ra7-b7 Ne4-d6 Rb7xb2+ Kc2-d1 Rb2-b1+ Kd1-e2 Rb1-b2
Ke2-d1) 0.00/24 29} 23. Kc2 {(Kd1-c2 Rb8-a8 Bc1-d2 Ra7-b7 Ng6xe7 Rb7xe7
Bd2-e1 Re7-d7 Ne4xc5 Rd7-f7 Rf4xd4 Rf7-f5 Rd4-h4 Rf5-f3 Rh4-h2 Ke8-f7
Be1-d2 Kf7-g8 Kc2-c3 Rf3-f5 f2-f4 Rf5-f7 Bd2-c1 Kg8-h8 Bc1-e3 Kh8-h7 Rh2-h1
Bc8-d7 Rh1-g1 Rf7-e7 Be3-f2 Re7-f7 Rg1-f1 Bd7-c8 Bf2-e3 Kh7-h8 Rf1-h1
Kh8-h7 Rh1-h2 Kh7-g8 Rh2-h4 Kg8-h7 Nc5-e4 Bc8-d7 Ne4-d6 Rf7-f8 Be3-c5
Bd7-e8) +3.22/37 17} a3 {(a4-a3 b2xa3 Rb8-b7 Ng6xe7 Rb7xe7 Kc2-b2 Re7-b7+
Kb2-a1 Rb7-e7 Ka1-b1 Ra7-a8 Ne4-d6+ Ke8-d8 Rf4-f8+ Kd8-c7 Kb1-c2 Re7-d7
Rf8-g8 Bc8-b7 Nd6-e8+ Kc7-b6 Rg8xg7 Rd7xg7 Ne8xg7) -0.18/26 27} 24. b3
{(b2-b3 Rb8-a8 f2-f3 Ra7-d7 Bc1-d2 Bc8-b7 Bd2-e1 Ke8-d8 Ng6xe7 Kd8xe7
Ne4-d6 Rd7xd6 Be1-h4+ Ke7-e8 e5xd6 Bb7-c8 Bh4-e7 e6-e5 Rf4-f8+ Ke8-d7
Rf8-f7 Kd7-e6 Rf7xg7 Bc8-d7 Rg7-g6+ Ke6-f7 Rg6xh6 Ra8-g8 Rh6-f6+ Kf7-g7
Rf6-g6+ Kg7-f7 Rg6xg8 Kf7xg8 Be7-f6 Kg8-h7 Bf6-g5 Kh7-g8 f3-f4 e5xf4 Bg5xf4
Bd7-f5) +6.01/32 22} Rba8 {(Rb8-a8 Ng6xe7 Ra7xe7 Ne4-d6+ Ke8-d7 Rf4-f8
Kd7-c7 Bc1xa3 Ra8xa3 Rf8xc8+ Kc7-d7 Kc2-b2 Ra3-a6 Rc8-g8 Kd7-c7 a2-a4
Ra6-a5 Kb2-c2 Ra5-a6 Kc2-d2 Ra6-a5 Kd2-d1 Ra5-a6 Kd1-e2 Ra6-a5 Nd6-e8+
Kc7-d8 Ne8xg7+ Kd8-d7 Ke2-f3 Re7-f7+ Kf3-g3 Kd7-e7) -0.36/27 22} 25. Bd2
{(Bc1-d2 Bc8-d7 f2-f3 Ke8-d8 Rf4-f7 Bd7-e8 Rf7xg7 Be8xg6 h5xg6 Be7-f8
Rg7-g8 Kd8-c7 g6-g7 Bf8xg7 Rg8xg7+ Kc7-b6 Rg7-g6 Ra7-h7 b3-b4 h6-h5 Ne4xc5
h5-h4 Bd2-f4 h4-h3 Bf4-h2 Rh7-h8 Nc5xe6 Rh8-g8 Rg6-g4 Rg8xg4 f3xg4 Ra8-g8
Kc2-b3 Rg8xg4 Ne6-f4 Kb6-b7 e5-e6 Kb7-c8 Kb3xa3 Rg4-g5 Ka3-b3 Rg5-e5 a2-a4
Re5-e1 b4-b5 c6xb5 c4xb5 Re1-b1+ Kb3-c4) +6.67/32 25} Rb7 {(Ra7-b7 Ng6xe7
Rb7xe7 Bd2-c1 Re7-d7 Rf4-f3 Rd7-e7 Ne4-d6+ Ke8-d8 Rf3-f8+ Kd8-c7 Bc1xa3
Ra8xa3 Rf8xc8+) -0.36/25 21} 26. f3 {(f2-f3 Rb7-d7 Bd2-e1 Ke8-d8 Rf4-f7
Be7-g5 Rf7-f8+ Kd8-c7 f3-f4 Ra8-a7 f4xg5 h6xg5 Ne4xg5 Rd7-d8 Rf8xd8 Kc7xd8
Be1-h4 Kd8-c7 Ng5-e4 Bc8-d7 Bh4-e7 Bd7-e8 Be7xc5 Ra7-a8 Bc5-d6+ Kc7-b7
Ne4-c5+ Kb7-a7 Nc5xe6 Be8xg6 h5xg6 Ra8-h8 b3-b4 Rh8-h1 Kc2-b3 Rh1-h2
Bd6-c5+ Ka7-a6 Bc5xd4 Rh2-d2 Ne6-c5+ Ka6-a7) +7.69/30 34} Rba7 {(Rb7-a7
Ng6xe7 Ra7xe7 Bd2-e1 Re7-d7 Be1-h4 Bc8-a6 Ne4-d6+ Rd7xd6 e5xd6 Ra8-a7
Bh4-e7 Ra7xe7 d6xe7 Ke8xe7 Rf4-g4 Ke7-f6 Rg4-g6+ Kf6-f7 Kc2-d2 Ba6-c8
Kd2-c1 Bc8-d7 Kc1-d1 e6-e5 Kd1-e2 Bd7-e6 Ke2-d2) -1.33/25 19} 27. Be1
{(Bd2-e1 Bc8-a6 Kc2-b1 Ba6-c8 Ng6xe7 Ra7xe7 Ne4-d6+ Ke8-d7 Be1-h4 g7-g5
h5xg6/ep Re7-g7 Nd6-e4 Bc8-b7 Ne4xc5+ Kd7-e8 Rf4-f6 Bb7-c8 f3-f4 Rg7-e7
Kb1-c2 Ra8-b8 Nc5-e4 c6-c5 Ne4xc5 h6-h5 Bh4-g5 Re7-g7 Nc5-e4 h5-h4 f4-f5
e6xf5 Ne4-d6+ Ke8-d7 Nd6xf5 Rg7xg6 e5-e6+ Kd7-c7 Rf6xg6 Kc7-b7 Nf5-d6+
Kb7-a8 e6-e7) +8.38/31 19} Ba6 {(Bc8-a6 Ng6xe7 Ra7xe7) -1.33/23 18} 28. Kb1
{(Kc2-b1 Ba6-c8 Ng6xe7 Ra7xe7 Ne4-d6+ Ke8-d7 Be1-h4 g7-g5 h5xg6/ep Re7-g7
Nd6-e4 Bc8-b7 Ne4xc5+ Kd7-e8 Rf4-f6 Bb7-c8 f3-f4 Rg7-e7 Nc5-e4 Bc8-a6
Kb1-c2 c6-c5 Ne4xc5 Ba6-c8 Kc2-d2 h6-h5 Kd2-c2 Ra8-b8 Bh4-g5 Re7-g7 Nc5xe6
Bc8xe6 Rf6xe6+ Ke8-d7 f4-f5 h5-h4 Re6-a6 Rg7-g8 e5-e6+ Kd7-c7 Bg5-f4+
Kc7-b7 Bf4xb8) +8.65/31 12} Bc8 {(Ba6-c8 Ng6xe7 Ra7xe7 Kb1-c2) -1.33/24 17}
29. Nxe7 {(Ng6xe7 Ra7xe7 Ne4-d6+ Ke8-d7 Be1-h4 g7-g5 h5xg6/ep Re7-g7 Nd6-e4
Bc8-a6 Ne4xc5+ Kd7-e8 Rf4-f6 Ba6-c8 f3-f4 Ra8-a7 Nc5xe6 Rg7-g8 Ne6xd4
Ra7-d7 Rf6xc6 Bc8-b7 Rc6-e6+ Ke8-f8 Nd4-f5 Rd7xd3 Nf5-d6 Rd3-d1+ Kb1-c2
Rd1xd6 e5xd6 Bb7-c8 f4-f5 Rg8xg6 Re6xg6 Bc8xf5+ Kc2-c3 Kf8-e8 Rg6xh6 Ke8-d7
c4-c5 Bf5-b1 Kc3-b4 Kd7-c6 Kb4xa3 Bb1-f5 Ka3-b4 Bf5-g4 a2-a4 Kc6-d5)
+9.44/30 17} Rxe7 {(Ra7xe7 Ne4-d6+ Ke8-d7 Be1-h4 g7-g5 h5xg6/ep Re7-g7
Nd6-e4 Kd7-c7) -4.49/23 16} 30. Nd6+ {(Ne4-d6+ Ke8-d7 Be1-h4 g7-g5 h5xg6/ep
Re7-g7 Nd6-e4 Bc8-b7 Ne4xc5+ Kd7-e8 Rf4-f6 Bb7-c8 f3-f4 Rg7-e7 Nc5-e4
Bc8-a6 Kb1-c2 Re7-g7 f4-f5 e6xf5 Ne4-d6+ Ke8-d7 Nd6xf5 Rg7xg6 e5-e6+ Kd7-c7
Rf6xg6 Ra8-e8 Nf5-g7 Re8-g8 e6-e7 Kc7-b6 b3-b4 Kb6-a7 Ng7-e6 Rg8xg6 e7-e8Q
Rg6-g2+ Kc2-b3 Rg2-d2 Qe8-d7+ Ba6-b7 Qd7xd4+ c6-c5) +10.15/31 30} Kd7
{(Ke8-d7 Be1-h4 g7-g5 h5xg6/ep Re7-g7 Nd6-e4 Kd7-c7 Rf4-f7+ Rg7xf7 g6xf7
Bc8-d7 Bh4-e7) -4.79/26 20} 31. Bh4 {(Be1-h4 g7-g5 h5xg6/ep Re7-g7 Nd6-e4
Bc8-b7 Ne4xc5+ Kd7-e8 Rf4-f6 Bb7-c8 f3-f4 Ra8-a7 Nc5xe6 Rg7-g8 Ne6xd4
Ra7-d7 Rf6-e6+ Ke8-f8 Re6xc6 Bc8-b7 Rc6-f6+ Kf8-e8 Rf6-e6+ Ke8-f8 Nd4-f5
Rd7xd3 Nf5-d6 Rd3-d1+ Kb1-c2 Rd1xd6 e5xd6 Bb7-c8 f4-f5 Rg8xg6 Re6xg6
Bc8xf5+ Kc2-c1 Bf5-c8 Bh4-f6 Kf8-f7 Rg6xh6 Bc8-f5 Bf6-e5 Bf5-g4 Rh6-f6+
Kf7-e8 Rf6-g6 Bg4-f5 Rg6-g7 Bf5-d7 Rg7-e7+ Ke8-d8) +10.55/33 20} g5 {(g7-g5
h5xg6/ep) -4.79/26 19} 32. hxg6 {(h5xg6/ep Re7-g7 Nd6-e4 Bc8-b7 Ne4xc5+
Kd7-e8 Rf4-f6 Bb7-c8 f3-f4 Ra8-a7 Nc5xe6 Rg7-g8 Ne6xd4 Ra7-d7 Rf6xc6 Bc8-b7
Rc6-e6+ Ke8-f8 Nd4-f5 Rd7xd3 Nf5-d6 Rd3-d1+ Kb1-c2 Rd1xd6 e5xd6 Bb7-c8
f4-f5 Rg8xg6 Re6xg6 Bc8xf5+ Kc2-c1 Bf5-c8 Bh4-f6 Kf8-f7 Rg6xh6 Kf7-e6
Bf6-d4+ Ke6-d7 Bd4-c5 Kd7-c6 Bc5xa3 Kc6-b7 Rh6-h7+ Kb7-b8 d6-d7 Bc8xd7
Rh7xd7 Kb8-a8 Rd7-d8+ Ka8-a7) +10.70/32 30} Rg7 {(Re7-g7 Nd6-e4 Kd7-c7
Rf4-f7+ Rg7xf7 g6xf7 Bc8-d7 Bh4-e7) -4.89/27 18} 33. Ne4 {(Nd6-e4 Bc8-b7
Ne4xc5+ Kd7-e8 Rf4-f6 Bb7-c8 f3-f4 Ra8-a7 Nc5xe6 Rg7-g8 Ne6xd4 Ra7-d7
Rf6-e6+ Ke8-f8 Re6xc6 Bc8-b7 Rc6-f6+ Kf8-e8 Rf6-e6+ Ke8-f8 Nd4-f5 Rd7xd3
Nf5-d6 Rd3-d1+ Kb1-c2 Rd1xd6 e5xd6 Bb7-c8 f4-f5 Rg8xg6 Re6xg6 Bc8xf5+
Kc2-c1 Bf5-c8 Bh4-f6 h6-h5 Rg6-g7 h5-h4 d6-d7 Bc8xd7 Rg7xd7 h4-h3 Rd7-h7
h3-h2 Kc1-c2 h2-h1Q) +10.30/29 14} Kc7 {(Kd7-c7) -4.89/27 17} 34. Rf7+
{(Rf4-f7+ Rg7xf7 g6xf7 Bc8-d7 Bh4-e7 Ra8-h8 Ne4-f6 Bd7-e8 f7xe8Q Rh8xe8
Nf6xe8+ Kc7-d7 Be7-f8 Kd7xe8 Bf8xh6 Ke8-f7 Kb1-c2 Kf7-g6 Bh6-c1 Kg6-f5
Bc1xa3 Kf5xe5 Ba3xc5 Ke5-f4 a2-a4 Kf4xf3 Kc2-d2 Kf3-f4 a4-a5 Kf4-f5 a5-a6
Kf5-f4 Kd2-c2 Kf4-f5 a6-a7 e6-e5 a7-a8Q e5-e4 Qa8xc6 e4xd3+ Kc2xd3 Kf5-e5
Qc6-e4+ Ke5-f6 b3-b4) +13.38/30 12} Rxf7 {(Rg7xf7 g6xf7 Bc8-d7 Bh4-e7
Ra8-h8 Be7xc5 Bd7-e8 f7-f8Q Rh8xf8 Bc5xf8 h6-h5 Ne4-g5 h5-h4 Ng5xe6+ Kc7-c8
Ne6-f4 Be8-d7 Bf8xa3 h4-h3 Nf4xh3 Bd7xh3 Ba3-c5 Kc8-d7 Bc5xd4 Kd7-e6 f3-f4
Bh3-f5 Kb1-c2 Bf5-g6 a2-a4 Ke6-f5 Bd4-e3 Kf5-g4 e5-e6 Kg4-f3 Kc2-d2)
-5.11/28 16} 35. gxf7 {(g6xf7 Bc8-d7 Bh4-e7 Ra8-h8 Ne4-f6 Bd7-e8 f7xe8Q
Rh8xe8 Nf6xe8+ Kc7-d7 Be7-f8 Kd7xe8 Bf8xh6 Ke8-e7 Bh6-c1 Ke7-f7 Bc1xa3
Kf7-g6 Ba3xc5 Kg6-f5 a2-a4 Kf5xe5 Kb1-c2 Ke5-f5 a4-a5 Kf5-f4 a5-a6 Kf4xf3
a6-a7 Kf3-e3 a7-a8Q Ke3-f4 Bc5xd4 c6-c5 Bd4xc5 e6-e5 Qa8-e4+ Kf4-g5 Qe4xe5+
Kg5-g6) +14.93/33 47} Bd7 {(Bc8-d7 Bh4-e7 Ra8-h8 Be7xc5 Bd7-e8 f7-f8Q
Rh8xf8 Bc5xf8 h6-h5 Ne4-g5 h5-h4) -5.17/30 15} 36. Be7 {(Bh4-e7 Ra8-h8
Ne4-f6 Bd7-e8 f7xe8Q Rh8xe8 Nf6xe8+ Kc7-d7 Be7-f8 Kd7xe8 Bf8xh6 Ke8-f7
Kb1-c2 Kf7-e7 Bh6-c1 Ke7-f7 Bc1xa3 Kf7-e7 Ba3xc5+ Ke7-e8 Kc2-b1 Ke8-f7
a2-a4 Kf7-g6 Kb1-c2 Kg6-g5 a4-a5 Kg5-f4 a5-a6 Kf4xe5 a6-a7 Ke5-f4 a7-a8Q
Kf4xf3 Bc5xd4 Kf3-g4 Qa8-g8+ Kg4-f3) +16.39/31 23} Rh8 {(Ra8-h8 Be7xc5
Bd7-e8 f7-f8Q Rh8xf8 Bc5xf8 h6-h5 Ne4-g5 h5-h4 Ng5xe6+) -5.19/31 15} 37.
Nf6 {(Ne4-f6 Bd7-e8 f7xe8Q) +17.51/29 69} Be8 {(Bd7-e8 f7xe8N+ Rh8xe8
Nf6xe8+ Kc7-d7 Be7xc5 Kd7xe8 Bc5xa3 Ke8-d7 Ba3-c5 h6-h5 Bc5xd4 h5-h4 a2-a4
h4-h3 Bd4-g1) -5.29/24 9} 38. fxe8=Q {(f7xe8Q Rh8xe8 Nf6xe8+ Kc7-d7 Be7-f8
Kd7xe8 Bf8xh6 Ke8-f7 Kb1-c2 Kf7-e8 Bh6-c1 Ke8-e7 Bc1xa3 Ke7-d7 Ba3xc5
Kd7-c8 a2-a4 Kc8-c7 f3-f4 Kc7-d8 a4-a5 Kd8-e8 a5-a6 Ke8-f7 a6-a7 Kf7-g6
a7-a8Q Kg6-f5 Qa8xc6 Kf5xf4 Bc5xd4 Kf4-f5 Qc6-f3+ Kf5-g5 Qf3-f6+ Kg5-h5
Qf6xe6) +19.15/26 23} Rxe8 {(Rh8xe8 Nf6xe8+ Kc7-d7 Be7xc5 Kd7xe8 Bc5xa3
Ke8-d7 Ba3-c5 Kd7-c7 Bc5xd4 Kc7-b7 a2-a4 Kb7-a6 Bd4-f2 Ka6-a5 Bf2-e1+
Ka5-b6 Kb1-c2 c6-c5 Be1-f2 Kb6-c6 a4-a5 h6-h5 d3-d4 c5xd4 b3-b4 Kc6-b7
b4-b5 h5-h4 a5-a6+ Kb7-a7 Bf2xd4+ Ka7-b8 a6-a7+ Kb8-b7 b5-b6 h4-h3 Bd4-g1
Kb7-a8) -7.54/30 9} 39. Nxe8+ {(Nf6xe8+ Kc7-d7 Be7-f8) +20.20/28 58} Kd7
{(Kc7-d7 Be7xc5 Kd7xe8 Bc5xa3 Ke8-d7 Ba3-c5 h6-h5 Bc5xd4 h5-h4 a2-a4)
-8.26/35 9} 40. Bf8 {(Be7-f8 Kd7-d8 Ne8-f6 Kd8-c7 Bf8xh6 Kc7-d8 Bh6-f8
Kd8-c8 Nf6-e8 Kc8-d8 Ne8-g7 Kd8-c8 Bf8xc5 Kc8-b8 Ng7xe6 Kb8-c8 Ne6xd4
Kc8-d7 e5-e6+ Kd7-d8 e6-e7+ Kd8-e8 Kb1-c2 Ke8-f7 Nd4-f5 Kf7-e8 Nf5-g7+
Ke8-f7 e7-e8Q+ Kf7xg7 Qe8xc6) +21.50/25 9} Kxe8 {(Kd7xe8 Bf8xh6 Ke8-d7
Bh6-c1 Kd7-c7 Bc1xa3 Kc7-b6 Kb1-c2 Kb6-b7 Ba3xc5 Kb7-a6 a2-a4 Ka6-a5 Bc5xd4
Ka5-b4 Bd4-c3+ Kb4-c5 b3-b4+ Kc5-b6 a4-a5+ Kb6-a6 Bc3-e1 Ka6-a7 Be1-h4
Ka7-a6 Kc2-b3 Ka6-b7 b4-b5 c6xb5 c4xb5 Kb7-c8 a5-a6 Kc8-c7 a6-a7 Kc7-b7
b5-b6 Kb7-a8) -9.09/34 9} 41. Bxh6 {(Bf8xh6 Ke8-e7 Bh6-g5+ Ke7-e8 Bg5-f4
Ke8-f7 Bf4-c1 Kf7-e7 Kb1-c2 Ke7-f7 Bc1xa3 Kf7-f8 f3-f4 Kf8-e8 Ba3xc5 Ke8-d7
a2-a4 Kd7-d8 a4-a5 Kd8-d7 a5-a6 Kd7-c7 Kc2-b1 Kc7-c8 b3-b4 Kc8-c7 Kb1-c2
Kc7-b8 Kc2-d1 Kb8-c7) +23.55/28 15} Kd7 {(Ke8-d7 Bh6-c1 Kd7-c7 Bc1xa3
Kc7-b6) -15.16/34 9} 42. Bc1 {(Bh6-c1 Kd7-e7 Kb1-c2 Ke7-f7 Bc1xa3 Kf7-g6
Ba3xc5 Kg6-g5 a2-a4 Kg5-f4 a4-a5 Kf4xe5 a5-a6 Ke5-f6 a6-a7 Kf6-g7 a7-a8Q
e6-e5 Qa8-f8+ Kg7-g6 Qf8-e8+ Kg6-f5 Qe8-f7+ Kf5-g5 Qf7-g7+ Kg5-f4 Qg7-f6+
Kf4-g3 Qf6xe5+ Kg3xf3 Qe5-e4+ Kf3-f2 Bc5xd4+ Kf2-g3) +250.00/27 1} Kc7
{(Kd7-c7 Bc1xa3 Kc7-c8 Kb1-c2 Kc8-d7 Kc2-d2 Kd7-e7 Ba3xc5+ Ke7-f7 Bc5xd4
c6-c5 Bd4xc5 Kf7-g7 a2-a4 Kg7-g6 a4-a5 Kg6-f5 Kd2-c2 Kf5xe5 a5-a6 Ke5-f4
a6-a7 Kf4xf3 a7-a8Q+ Kf3-g3 Kc2-c3 e6-e5 Qa8-e4 Kg3-h2 Qe4xe5+ Kh2-g2 b3-b4
Kg2-h3) -15.78/32 9} 43. Bxa3 {(Bc1xa3 Kc7-d8 Ba3xc5 Kd8-c8 Kb1-b2 Kc8-d7
a2-a4 Kd7-c7 Kb2-b1 Kc7-b7 f3-f4 Kb7-c8 Kb1-c2 Kc8-b8 a4-a5 Kb8-b7 Kc2-d2
Kb7-a6 b3-b4 Ka6-b7 Kd2-c2 Kb7-a8 a5-a6 Ka8-b8 Bc5xd4 c6-c5 Bd4xc5 Kb8-c7
b4-b5 Kc7-c8 Kc2-b1 Kc8-d8 a6-a7) +250.00/32 1} Kb6 {(Kc7-b6 Kb1-c2 Kb6-c7
Ba3xc5 Kc7-d7 a2-a4 Kd7-c7) -16.75/31 9} 44. Kc2 {(Kb1-c2 Kb6-c7 Ba3xc5
Kc7-c8 Kc2-b1 Kc8-b8 a2-a4 Kb8-c7 Kb1-c2 Kc7-b7 f3-f4 Kb7-c8 Kc2-d1 Kc8-b7
Kd1-c1 Kb7-c7 a4-a5 Kc7-b7 Kc1-c2 Kb7-c8 a5-a6 Kc8-b8 Kc2-d2 Kb8-c8 a6-a7
Kc8-b7 Kd2-c2 Kb7-a8 b3-b4 Ka8-b7 f4-f5) +250.00/31 1} Kb7 {(Kb6-b7 Ba3xc5
Kb7-c7 Bc5xd4 Kc7-b7 a2-a4) -19.06/29 9} 45. Bxc5 {(Ba3xc5 Kb7-c8 a2-a4
Kc8-b7 Kc2-d2 Kb7-b8 a4-a5 Kb8-b7 f3-f4 Kb7-c8 a5-a6 Kc8-b8 a6-a7+ Kb8-a8
Kd2-c1 Ka8-b7 b3-b4 Kb7-a8 Kc1-c2 Ka8-b7 f4-f5 e6xf5 e5-e6 Kb7-c7 a7-a8Q
f5-f4 e6-e7 Kc7-d7 e7-e8Q+ Kd7-c7 Qe8xc6+) +M16/31 4} Kc7 {(Kb7-c7 Bc5xd4
Kc7-b7 a2-a4 Kb7-c7 b3-b4 c6-c5 Bd4xc5 Kc7-c6 b4-b5+ Kc6xc5 a4-a5 Kc5-d4
b5-b6 Kd4-e3 b6-b7 Ke3xf3 b7-b8Q Kf3-g3 Qb8-g8+ Kg3-h2 Qg8xe6 Kh2-g3)
-20.62/27 9} 46. a4 {(a2-a4 Kc7-c8 a4-a5 Kc8-b7 f3-f4 Kb7-b8 a5-a6 Kb8-c7
Kc2-b2 Kc7-b8 Kb2-b1 Kb8-a8 Kb1-c2 Ka8-b8 f4-f5 Kb8-c7 f5xe6 Kc7-c8 b3-b4
Kc8-b8 e6-e7 Kb8-c8 e7-e8Q+ Kc8-c7 a6-a7 Kc7-b7 Qe8-b8+ Kb7-a6 a7-a8Q+)
+M15/30 2} Kb7 {(Kc7-b7 Bc5xd4 Kb7-c7 b3-b4 c6-c5 Bd4xc5) -21.52/27 9} 47.
f4 {(f3-f4 Kb7-c7 a4-a5 Kc7-b8 a5-a6 Kb8-c7 a6-a7 Kc7-b7 Kc2-d1 Kb7-a8
f4-f5 e6xf5 e5-e6 Ka8-b7 e6-e7 f5-f4 e7-e8Q f4-f3 a7-a8Q+ Kb7-c7 Qa8xc6+)
+M11/29 5} Kc7 {(Kb7-c7 a4-a5 Kc7-b7 Bc5xd4 Kb7-a6 f4-f5 e6xf5 e5-e6 Ka6xa5
b3-b4+ Ka5-a6 e6-e7 c6-c5 e7-e8Q c5xd4 Qe8-a8+ Ka6-b6 b4-b5 Kb6-c7 Qa8-c6+
Kc7-d8 b5-b6 Kd8-e7 Qc6-c7+ Ke7-e6 Qc7-c8+ Ke6-f6 Qc8-d8+ Kf6-g6 Qd8-d6+
Kg6-g5 b6-b7 f5-f4 b7-b8Q) -18.24/22 9} 48. a5 {(a4-a5 Kc7-b8 f4-f5 e6xf5
e5-e6 Kb8-c8 a5-a6 Kc8-d8 a6-a7 Kd8-c7 a7-a8Q f5-f4 Qa8-a7+ Kc7-c8 Bc5-b6
f4-f3 Qa7-a8+) +M9/27 9} Kb7 {(Kc7-b7 Bc5xd4 c6-c5 Bd4xc5) -19.74/22 9} 49.
f5 {(f4-f5 e6xf5 e5-e6 Kb7-c8 a5-a6 Kc8-d8 a6-a7 Kd8-c7 a7-a8Q f5-f4
Qa8-a7+ Kc7-c8 Bc5-b6 f4-f3 Qa7-a8+) +M8/26 4} exf5 {(e6xf5 e5-e6 Kb7-c7
a5-a6 Kc7-c8 a6-a7 Kc8-b7 e6-e7 f5-f4 e7-e8Q Kb7-c7 a7-a8Q f4-f3 Qa8xc6+)
-M7/20 9} 50. e6 {(e5-e6 Kb7-c8 a5-a6 Kc8-d8 a6-a7 Kd8-c7 a7-a8Q f5-f4
Qa8-a7+ Kc7-c8 Bc5-b6 f4-f3 Qa7-a8+) +M7/25 6} Kc7 {(Kb7-c7 a5-a6 Kc7-c8
a6-a7 Kc8-b7 e6-e7 f5-f4 e7-e8Q Kb7-c7 a7-a8Q f4-f3 Qa8xc6+) -M6/21 15} 51.
a6 {(a5-a6 f5-f4 a6-a7 Kc7-b7 e6-e7 Kb7-c7 e7-e8Q f4-f3 Qe8-f7+ Kc7-c8
a7-a8Q+) +M6/24 3} Kc8 {(Kc7-c8 a6-a7) -M5/22 14} 52. a7 {(a6-a7 Kc8-c7
a7-a8Q f5-f4 Qa8-a7+ Kc7-c8 Bc5-b6 f4-f3 Qa7-a8+) +M5/22 2} Kb7 {(Kc8-b7
e6-e7) -M4/22 14} 53. e7 {(e6-e7 Kb7-c7 e7-e8Q f5-f4 Qe8-e7+ Kc7-c8
a7-a8Q+) +M4/22 2} f4 {(f5-f4 e7-e8Q) -M3/20 13 Black resigns} *[/pgn]

Thanks, interesting game. I'll have to review it more closely when I have the time.