Response to Jon Dart : Time to revise modern theory

[Dann Corbit]

Due to the nature of the game changes in eval at the leaves of the search tree can change the eval much farther up. And that is why "theory" is always changing.

For example, I have recently been looking at this game:


[Event "EU/TC9/final"]
[Site "ICCF"]
[Date "2014.06.10"]
[Round "?.3"]
[White "Borstnik, Ales"]
[Black "Kupsys, Alfonsas"]
[Result "1-0"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 cxd4 8. Nxd4
Qb6 9. Qd2 Qxb2 10. Rb1 Qa3 11. Bb5 Nxd4 12. Bxd4 a6 13. Bxd7 Bxd7 14. Rb3 Qe7
15. Rxb7 Rc8 16. O-O Qa3 17. Rfb1 Bc5 18. Ne2 h6 19. f5 exf5 20. h3 Bc6
21. R7b3 Bxd4 22. Nxd4 Qc5 23. Rg3 g5 24. e6 fxe6 25. Rc3 Qa7 26. Qe3 Bd7
27. Rcb3 Qc5 28. Rb7 Rh7 29. Qe5 Kf8 30. R1b6 Kg8 31. Rxe6 Qxd4 32. Qxd4 Bxe6
33. Qf6 Bf7 34. Qxa6 Re8 35. a4 g4 36. Qd3 1-0

Here I think 18. .. h6 is a novelty and it looks like a good one, but after 20. h3! Black is busted. However, actually Black does not appear to have any really adequate moves at move 18 (.. Bb4+ for example gives him a difficult position too), so in fact he should probably deviate earlier. It appears recent games favor 15. .. Qd8, as in Caruana-Robson, US chmp 2016. However, this whole line is very complex. I am quite sure you can't search forward far earlier in the game and get an accurate eval for it.

--Jon

Forum is still broken, by the way. My direct response to Jon went missing.

These are the choices that black could have made to improve his game. By the last one, it may already have been too late:

[d]r1bqkb1r/pp1n1ppp/2n1p3/3pP3/3N1P2/2N1B3/PPP3PP/R2QKB1R b KQkq - acd 39; acs 7200; bm Bc5; c3 "Qb6"; move# 08b; cce -65; ce -17; pm Bc5 {4495} Qb6 {357} Nxd4 {207} Bb4 {99} a6 {44} Be7 {33} Nc5 {30} Nb6 {22} Qa5 {4} g6 {2} Qc7 {1} g5 {1}; pv Bc5 Qd2 O-O Be2 a6 Bf3 Nxd4 Bxd4 Bxd4 Qxd4 b5 O-O Rb8 Ne2 b4 Qe3 a5 Nd4 Qb6 Rfb1 Qc5 Re1 Qb6 Rac1 Bb7 Rb1 Rfc8 c3 Ba6 cxb4 axb4 f5 Re8 Rbd1 exf5 Nxf5 Rxe5 Qxb6 Rxe1+ Kf2 Nxb6 Rxe1 Nc4 Bxd5; white_wins 1963; black_wins 1285; draws 1413;

[d]r3kb1r/1R1bqppp/p3p3/3pP3/3B1P2/2N5/P1PQ2PP/4K2R b Kkq - acd 46; acs 7200; bm Qh4+; c3 "Rc8"; move# 15b; ce -29; pm Qh4+; pv Qh4+ Bf2;

[d]2r1kb1r/1R1bqppp/p3p3/3pP3/3B1P2/2N5/P1PQ2PP/5RK1 b k - acd 48; acs 7200; bm Qd8; c3 "Qa3"; move# 16b; ce -27; pm Qd8; pv Qd8 f5;

[d]2r1k2r/1R1b1ppp/p3p3/2bpP3/3B1P2/q7/P1PQN1PP/1R4K1 b k - acd 47; acs 7200; bm Bxd4+; c3 "h6"; move# 18b; ce -43; pm Bxd4+; pv Bxd4+ Nxd4 Rc4 f5 exf5 e6 fxe6 Rb8+ Rc8 Rxc8+ Bxc8 Nxe6 Qd6 Nxg7+ Kf7 Nh5 Re8 Nf4 d4 Ne2 Re4 Rd1 Bb7 Ng3 Rf4 h3 d3 Qxd3 Qxd3 Rxd3 Bc8 Rc3 Bd7 Rc7 Ke6 Ra7 Ra4 Nxf5 Bc6 g4 Be4 Rxh7 Bxf5 Rh6+ Kf7 gxf5 Rxa2 Rc6 Ra5 f6 Rh5 Kg2 a5 Ra6 Rc5 Kg3 Rxc2 h4 Rc3+ Kf4 a4 h5 a3;

[jdart]

Here is another line that is just crazy complex:

[pgn][Event "Capablanca Memorial Elite"]
[Site "Havana"]
[Date "2006.11.22"]
[Round "2"]
[White "Dominguez Perez, Leinier"]
[Black "Bareev, Evgeny"]
[Result "1/2-1/2"]
[ECO "C18"]
[WhiteElo "2655"]
[BlackElo "2683"]
[PlyCount "36"]
[EventDate "2006.11.21"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "CUB"]
[EventCategory "17"]
[SourceTitle "CBM 116"]
[Source "ChessBase"]
[SourceDate "2007.02.01"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. a3 Bxc3+ 6. bxc3 c5 7. Qg4 O-O 8. Bd3
Nbc6 9. Bg5 Qa5 10. Ne2 Ng6 11. O-O c4 12. Bxg6 fxg6 13. a4 Qc7 14. Bc1 Qf7 15.
Ng3 Ne7 16. a5 Nf5 17. Ne2 Bd7 18. h4 b6 1/2-1/2
[/pgn]

First question: is 9. Bg5 good for White, or not? Not easy at all to tell.

Second question: what to play at move 10 for Black? Bareev chickened out and played .. Ng6, which appears safe. But engines will prefer something else. One line that looks good at first glance is 10. .. cxd4. Now believe it or not, the theoretical line is 11. f4, sacrificing a pawn.

Which brings us to the third question: take the pawn or not?

[d] r1b2rk1/pp2nppp/2n1p3/q2pP1B1/3p1PQ1/P1PB4/2P1N1PP/R3K2R b KQ - 0 11

I think taking is bad because after 12. O-O Ng6 13. Qh5 it transposes into the following game:

[pgn]
[Event "2nd Armenian Clubs"]
[Site "Yerevan ARM"]
[Date "2006.01.20"]
[Round "3"]
[White "Petrosian, Davit Gevorgi"]
[Black "Mkrtchian, Lilit"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2352"]
[BlackElo "2453"]
[PlyCount "83"]
[EventDate "2006.01.18"]
[EventType "simul"]
[EventRounds "2"]
[EventCountry "ARM"]
[Source "ChessPublishing"]
[SourceDate "2015.01.03"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. a3 Bxc3+ 6. bxc3 c5 7. Qg4 O-O 8. Bd3
Nbc6 9. Bg5 Qa5 10. Ne2 cxd4 11. f4 Ng6 12. Qh5 dxc3 13. O-O Qc5+ 14. Kh1 Nce7
15. Rf3 f5 16. exf6 gxf6 17. Rh3 Rf7 18. Bxf6 Rxf6 19. Qxh7+ Kf8 20. Rg3 Qf2
21. Ng1 Bd7 22. Qh6+ Kf7 23. Qh7+ Kf8 24. Rf1 Qd4 25. Qh6+ Ke8 26. Qg7 Rxf4 27.
Bxg6+ Kd8 28. Qxd4 Rxd4 29. Rf8+ Kc7 30. Rxa8 Nxg6 31. Rxg6 Rd2 32. Rf8 Rxc2
33. Rg7 Kc6 34. Rd8 d4 35. Rdxd7 e5 36. h4 Rc1 37. h5 c2 38. Rc7+ Kb6 39. h6 d3
40. h7 d2 41. h8=Q d1=Q 42. Rxb7+ 1-0
[/pgn]

By the way, declining the pawn offer with 11 .. b6 fails spectacularly to 12. Bf6!!. The correct move to decline is 11. .. Ng6.

If you do an engine search from move 9 you will probably miss a lot of the interesting subvariations. And you might not find the pawn sac line at all, which is one of the more critical lines IMO

--Jon

[Lyudmil Tsvetkov]

Black made too many mistakes, like 1...e6, 3...Bb4, etc.

I suppose white simply agreed too early to a draw.
For me, even somewhere towards the end of the game, for example after black's Qf7:

[d]r1b2rk1/pp3qpp/2n1p1p1/3pP3/P1pP2Q1/2P5/2P1NPPP/R1B2RK1 w - - 0 1

the game is simply won for white, though in very very long and very very sacrificial lines (untipical for engines). White has pointed c3-d4-e5 chain, much better bishop, better knigth, black has doubled and very vulnerable in this particular position doubled g6 pawn, etc. I say white simply wins that.

White might proceed with Ba3, f4, Qh3-e3, g4, h4, then transfer one rook on the h file, by playing Kg2 and Rh1, then push h4-h5, and, even if white loses in the meantime a4 and c2 pawns, black position simply crumbles by kingside attacks; white transfers both rooks on h,g files, mating.

I checked this a bit with SF, and in most lines, I get 200+ cps, but, only in some 40 moves or so and after sacrificing couple of pawns for long-term compensation, something current top engines simply fail to consider.

Black might hold by a miracle in some lines, but I guess white eval is winning.

[Dann Corbit]

Here are the 100 Epd records for those two games analyzed:

Code: Select all

7Q/ppR3R1/1k6/4p3/8/P7/2p3P1/2rq2NK w - - acd 51; acs 2; bm Rxb7+; c3 "Rxb7+"; ce 32754; pm Rxb7+; pv Rxb7+ Ka6 Rxa7+ Kb5 Qb8+ Kc6 Rg6+ Kd5 Qb3+ Ke4 Ra4+ Qd4 Qf3+; white_wins 0; black_wins 0; draws 0; 
7Q/pR4R1/1k6/4p3/8/P7/2p3P1/2rq2NK b - - acd 125; acs 135; bm Ka5; ce -32755; pm Ka5; pv Ka5 Rxa7+ Kb5 Qb8+ Kc6 Rg6+ Kd5 Qb3+ Kd4 Ra4+ Kc5 Qc4+; white_wins 0; black_wins 0; draws 0; 
8/ppR3RP/1k6/4p3/8/P7/2pp2P1/2r3NK w - - acd 26; acs 12; bm Rxb7+; c3 "h8=Q"; ce 32736; pm Rxb7+; pv Rxb7+ Ka6 Rxa7+ Kb5 Rgb7+ Kc5 Rc7+ Kd4 h8=Q Rxg1+ Kxg1 c1=Q+ Kh2 Qg1+ Kxg1 d1=Q+ Kh2 Qb3 Rd7+ Kc3 Qxe5+ Kc2 Qe2+ Kc1 Rac7+ Kb1 Rb7 Kc1 Rd1+ Qxd1 Qb2+; white_wins 0; black_wins 0; draws 0; 
7Q/ppR3R1/1k6/4p3/8/P7/2pp2P1/2r3NK b - - acd 46; acs 135; bm Rxg1+; c3 "d1=Q"; ce -32621; pm Rxg1+; pv Rxg1+ Kxg1 c1=Q+ Kh2 Qxc7 Rxc7 d1=Q Qxe5 Qd8 Rc4 a5 Qd4+ Qxd4 Rxd4 Kc7 Ra4 b6 Rxa5; white_wins 0; black_wins 0; draws 0; 
8/ppR3R1/1k5P/4p3/8/P2p4/2p3P1/2r3NK w - - acd 26; acs 1; bm h7; c3 "h7"; ce 32734; pm h7; pv h7 d2 Rxb7+ Ka6 Rxa7+ Kb6 Rgb7+ Kc5 Rc7+ Kd4 h8=Q Rxg1+ Kxg1 c1=Q+ Kh2 Qg1+ Kxg1 d1=Q+ Kh2 Qb3 Rd7+ Kc3 Qxe5+ Kc2 Qe2+ Kc1 Rac7+ Kb1 Rb7 Kc1 Rd1+ Qxd1 Qb2+; white_wins 0; black_wins 0; draws 0; 
8/ppR3RP/1k6/4p3/8/P2p4/2p3P1/2r3NK b - - acd 48; acs 135; bm d2; c3 "d2"; ce -32735; pm d2; pv d2 Rxb7+ Ka6 Rxa7+ Kb6 Rgb7+ Kc5 Rc7+ Kd4 h8=Q Rxg1+ Kxg1 c1=Q+ Kh2 Qg1+ Kxg1 d1=Q+ Kh2 Qb3 Rd7+ Kc3 Qxe5+ Kc2 Qe2+ Kc1 Rac7+ Kb1 Rb7 Kc1 Rd1+ Qxd1 Qb2+; white_wins 0; black_wins 0; draws 0; 
8/ppR3R1/1k6/4p2P/3p4/P7/2p3P1/2r3NK w - - acd 37; acs 130; bm h6; c3 "h6"; ce 32732; pm h6; pv h6 Rf1 h7 Rf8 Rxc2 Rh8 Nf3 d3 Rb2+ Kc5 Nxe5 b5 Ng6 Rxh7+ Rxh7 Kc4 Rxa7 d2 Rxd2 Kc3 Rdd7 b4 Rac7+ Kb2 axb4 Kb3 b5 Ka4 b6 Kb5 b7 Kb6 b8=Q+ Ka6 Ra7+; white_wins 0; black_wins 0; draws 0; 
8/ppR3R1/1k5P/4p3/3p4/P7/2p3P1/2r3NK b - - acd 49; acs 135; bm d3; c3 "d3"; ce -32733; pm d3; pv d3 h7 d2 Rxb7+ Ka6 Rxa7+ Kb6 Rgb7+ Kc5 Rc7+ Kd4 h8=Q Rxg1+ Kxg1 c1=Q+ Kh2 Qg1+ Kxg1 d1=Q+ Kh2 Qb3 Rd7+ Kc3 Qxe5+ Kc2 Qe2+ Kc1 Rac7+ Kb1 Rb7 Kc1 Rd1+ Qxd1 Qb2+; white_wins 0; black_wins 0; draws 0; 
8/pp1R2R1/2k5/4p2P/3p4/P7/2p3P1/2r3NK w - - acd 32; acs 104; bm Rc7+; c3 "Rc7+"; ce 32718; pm Rc7+; pv Rc7+ Kd6 h6 Rf1 h7 Rf8 Rxc2 d3 Rc8 Rxc8 Rg8 Rxg8 hxg8=Q e4 Qc4 Ke5 Qc5+ Ke6 Qd4 Kf5 Qd5+ Kf6 Qxe4 d2 Qd4+ Kf7 Qxd2 Ke6 Nf3 Ke7 Qe2+ Kd6 Qe5+ Kd7 Qd5+ Ke7 Nd4 b5 Qe6+ Kd8 Qf7 Kc8 Nxb5 Kd8 Qc7+ Ke8; white_wins 0; black_wins 0; draws 0; 
8/ppR3R1/2k5/4p2P/3p4/P7/2p3P1/2r3NK b - - acd 40; acs 135; bm Kd6; c3 "Kb6"; ce -32721; pm Kd6; pv Kd6 h6 Rf1 h7 Rf8 Rxc2 d3 Rc8 Rxc8 Rg8 Rxg8 hxg8=Q e4 Qc4 Ke5 Qc5+ Ke6 Qd4 Kf5 Qd5+ Kf6 Qxe4 d2 Qe2 b5 Qxd2 Ke7 Qe3+ Kd6 Qd4+ Ke6 Nf3 a6 Qe5+ Kd7 Qf6 Kc7 Ne5 Kb8 Qc6 Ka7 Qc7+ Ka8 Nc6 b4 Qa7+; white_wins 0; black_wins 0; draws 0; 
8/pp1R2R1/2k5/4p3/3p3P/P1p5/6P1/2r3NK w - - acd 29; acs 135; bm Kh2; c3 "h5"; ce 1395; pm Kh2; pv Kh2; white_wins 0; black_wins 0; draws 0; 
8/pp1R2R1/2k5/4p2P/3p4/P1p5/6P1/2r3NK b - - acd 28; acs 135; bm Rf1; c3 "c2"; ce -1456; pm Rf1; pv Rf1 Kh2; white_wins 0; black_wins 0; draws 0; 
8/pp1R2R1/2k5/4p3/3p4/P1p5/2r3PP/6NK w - - acd 29; acs 135; bm h4; c3 "h4"; ce 1316; pm h4; pv h4; white_wins 0; black_wins 0; draws 0; 
8/pp1R2R1/2k5/4p3/3p3P/P1p5/2r3P1/6NK b - - acd 29; acs 135; bm e4; c3 "Rc1"; ce -1416; pm e4; pv e4 h5; white_wins 0; black_wins 0; draws 0; 
3R4/pp1b2R1/2k1p3/8/3p4/P1p5/2r3PP/6NK w - - acd 31; acs 135; bm Rdxd7; c3 "Rdxd7"; ce 1103; pm Rdxd7; pv Rdxd7; white_wins 0; black_wins 0; draws 0; 
8/pp1R2R1/2k1p3/8/3p4/P1p5/2r3PP/6NK b - - acd 31; acs 135; bm Rd2; c3 "e5"; ce -1166; pm Rd2; pv Rd2 h4; white_wins 0; black_wins 0; draws 0; 
5R2/pp1b2R1/2k1p3/3p4/8/P1p5/2r3PP/6NK w - - acd 29; acs 135; bm Rd8; c3 "Rd8"; ce 1046; pm Rd8; pv Rd8; white_wins 0; black_wins 0; draws 0; 
3R4/pp1b2R1/2k1p3/3p4/8/P1p5/2r3PP/6NK b - - acd 28; acs 135; bm b5; c3 "d4"; ce -1082; pm b5; pv b5 Rdxd7; white_wins 0; black_wins 0; draws 0; 
5R2/ppkb4/4p1R1/3p4/8/P1p5/2r3PP/6NK w - - acd 29; acs 135; bm Rg7; c3 "Rg7"; ce 1046; pm Rg7; pv Rg7; white_wins 0; black_wins 0; draws 0; 
5R2/ppkb2R1/4p3/3p4/8/P1p5/2r3PP/6NK b - - acd 29; acs 135; bm a5; c3 "Kc6"; ce -1040; pm a5; pv a5 Rff7; white_wins 0; black_wins 0; draws 0; 
R7/ppkb4/4p1R1/3p4/8/P1p5/2Pr2PP/6NK w - - acd 34; acs 135; bm Rg7; c3 "Rf8"; ce 586; pm Rg7; pv Rg7 d4 Rf8 d3 Rf3 dxc2 Rxc3+ Kd6 h4 Ba4 Kh2 Rd1 Ne2 Re1 Rg4 Bb5 Nd4 c1=Q Rxc1 Rxc1 Nxb5+ Ke7 Nxa7 Kf6 Rb4 Ra1 Nb5 Ra2 a4 Kg6 Kh3 e5 g4 Rd2 Kg3 Rd1 Kf2 Rh1 h5+ Kg5 Nd6 Ra1 Nf7+ Kf6 Rxb7; white_wins 0; black_wins 0; draws 0; 
5R2/ppkb4/4p1R1/3p4/8/P1p5/2Pr2PP/6NK b - - acd 32; acs 135; bm Kd6; c3 "Rxc2"; ce -481; pm Kd6; pv Kd6 h4 Rxc2 h5 Rc1 h6 c2 h7 Rb1 h8=Q c1=Q Qh2+ Kc5 Rg4 Bc6 Rb4 Rxb4 axb4+ Kb5 Rf3 Qe1 Qd6 Qxb4 Qxe6 Kb6 Ne2 a5 Rf4 Qb2 Kg1 Qd2 Kh2 Ka6 Qe5 Qe1 Qe3 a4 Qd3+ Ka5 Nd4 Qc1 Nxc6+ bxc6 Qd4 a3 Qb4+ Ka6 Qa4+ Kb6 Rf3 Qh6+ Rh3; white_wins 0; black_wins 0; draws 0; 
R7/ppkb4/4p1n1/3p4/3r4/P1p3R1/2P3PP/6NK w - - acd 31; acs 135; bm Rxg6; c3 "Rxg6"; ce 462; pm Rxg6; pv Rxg6; white_wins 0; black_wins 0; draws 0; 
R7/ppkb4/4p1R1/3p4/3r4/P1p5/2P3PP/6NK b - - acd 32; acs 135; bm Kb6; c3 "Rd2"; ce -527; pm Kb6; pv Kb6 Rd8; white_wins 0; black_wins 0; draws 0; 
r4R2/ppkbn3/4p1B1/3p4/3r4/P1p3R1/2P3PP/6NK w - - acd 34; acs 135; bm Rxa8; c3 "Rxa8"; ce 513; pm Rxa8; pv Rxa8; white_wins 0; black_wins 0; draws 0; 
R7/ppkbn3/4p1B1/3p4/3r4/P1p3R1/2P3PP/6NK b - - acd 33; acs 135; bm Nxg6; c3 "Nxg6"; ce -530; pm Nxg6; pv Nxg6 Rxg6; white_wins 0; black_wins 0; draws 0; 
r2k4/pp1bn3/4p1B1/3p4/3r4/P1p3R1/2P3PP/5RNK w - - acd 32; acs 135; bm Rf8+; c3 "Rf8+"; ce 546; pm Rf8+; pv Rf8+ Kc7; white_wins 0; black_wins 0; draws 0; 
r2k1R2/pp1bn3/4p1B1/3p4/3r4/P1p3R1/2P3PP/6NK b - - acd 34; acs 135; bm Kc7; c3 "Kc7"; ce -544; pm Kc7; pv Kc7 Rxa8; white_wins 0; black_wins 0; draws 0; 
r2k4/pp1bn1Q1/4p1B1/3p4/3q1r2/P1p3R1/2P3PP/5RNK w - - acd 35; acs 135; bm Qxd4; c3 "Qxd4"; ce 538; pm Qxd4; pv Qxd4 Rxd4; white_wins 0; black_wins 0; draws 0; 
r2k4/pp1bn3/4p1B1/3p4/3Q1r2/P1p3R1/2P3PP/5RNK b - - acd 33; acs 135; bm Rxd4; c3 "Rxd4"; ce -531; pm Rxd4; pv Rxd4 Rf8+; white_wins 0; black_wins 0; draws 0; 
r3k3/pp1bn1Q1/4p1n1/3p4/3q1r2/P1pB2R1/2P3PP/5RNK w - - acd 35; acs 135; bm Bxg6+; c3 "Bxg6+"; ce 557; pm Bxg6+; pv Bxg6+; white_wins 0; black_wins 0; draws 0; 
r3k3/pp1bn1Q1/4p1B1/3p4/3q1r2/P1p3R1/2P3PP/5RNK b - - acd 34; acs 135; bm Kd8; c3 "Kd8"; ce -506; pm Kd8; pv Kd8; white_wins 0; black_wins 0; draws 0; 
r3k3/pp1bn3/4prnQ/3p4/3q1P2/P1pB2R1/2P3PP/5RNK w - - acd 35; acs 135; bm Qg7; c3 "Qg7"; ce 505; pm Qg7; pv Qg7; white_wins 0; black_wins 0; draws 0; 
r3k3/pp1bn1Q1/4prn1/3p4/3q1P2/P1pB2R1/2P3PP/5RNK b - - acd 36; acs 135; bm Rxf4; c3 "Rxf4"; ce -530; pm Rxf4; pv Rxf4; white_wins 0; black_wins 0; draws 0; 
r4k2/pp1bn2Q/4prn1/3p4/3q1P2/P1pB2R1/2P3PP/5RNK w - - acd 30; acs 135; bm Qh6+; c3 "Qh6+"; ce 371; pm Qh6+; pv Qh6+; white_wins 0; black_wins 0; draws 0; 
r4k2/pp1bn3/4prnQ/3p4/3q1P2/P1pB2R1/2P3PP/5RNK b - - acd 33; acs 135; bm Kf7; c3 "Ke8"; ce -371; pm Kf7; pv Kf7 Nf3 Rh8 Qxh8 Nxh8 Nxd4 Nhg6 Rgf3 Kg7 Bxg6 Kxg6 Rxc3 Nc6 Nf3 Kh6 g3 e5 fxe5 Nxe5 Kg2 Nc4 Re1 Kg7 h4 Rf8 Rd3 b6 c3 Bc6 Kh3 Kg6 g4 Rf6 Re7; white_wins 0; black_wins 0; draws 0; 
r4k2/pp1bn2Q/4prn1/3p4/5P2/P1pB2R1/2P2qPP/R5NK w - - acd 31; acs 135; bm Nf3; c3 "Rf1"; ce 506; pm Nf3; pv Nf3; white_wins 0; black_wins 0; draws 0; 
r4k2/pp1bn2Q/4prn1/3p4/5P2/P1pB2R1/2P2qPP/5RNK b - - acd 32; acs 135; bm Qd4; c3 "Qd4"; ce -338; pm Qd4; pv Qd4; white_wins 0; black_wins 0; draws 0; 
r7/pp1bnk2/4prnQ/3p4/5P2/P1pB2R1/2P2qPP/R5NK w - - acd 32; acs 135; bm Qh7+; c3 "Qh7+"; ce 329; pm Qh7+; pv Qh7+; white_wins 0; black_wins 0; draws 0; 
r7/pp1bnk1Q/4prn1/3p4/5P2/P1pB2R1/2P2qPP/R5NK b - - acd 34; acs 135; bm Ke8; c3 "Kf8"; ce -352; pm Ke8; pv Ke8; white_wins 0; black_wins 0; draws 0; 
r4k2/pp1bn3/4prnQ/3p4/5P2/P1pB2R1/2P2qPP/R5NK b - - acd 40; acs 1858; bm Ke8; c3 "Kf7"; ce -372; pm Ke8; pv Ke8 Rf1; white_wins 0; black_wins 0; draws 0; 
r1b2k2/pp2n2Q/4prn1/3p4/5P2/P1pB2R1/2P1NqPP/R6K w - - acd 36; acs 135; bm Ng1; c3 "Ng1"; ce 271; pm Ng1; pv Ng1 Qxf4 Bxg6 Nxg6 Rf3 Qd4 Rd1 Qe5 Re1 Qd4 Qxg6 Rxf3 Nxf3 Qg7 Qh5 Bd7 Ne5 Ke7 Qh4+ Kd6 Qb4+ Kc7 Qxc3+ Bc6 Qa5+ Kd6 c4 dxc4 Nxc4+ Ke7 Qc5+ Kf7 Ne5+ Kg8 Nxc6 bxc6 Qxc6 Rf8 Qxe6+ Kh8 a4 Qg5 Qh3+ Kg7 Qc3+ Qf6 Qg3+ Kh7 h3 Rg8 Qd3+ Kh6 Qe3+ Qg5 Qe6+ Kh7; white_wins 0; black_wins 0; draws 0; 
r1b2k2/pp2n2Q/4prn1/3p4/5P2/P1pB2R1/2P2qPP/R5NK b - - acd 36; acs 135; bm Qxf4; c3 "Bd7"; ce -299; pm Qxf4; pv Qxf4 Bxg6 Nxg6 Rf3 Qd4 Rd1 Qe5 Re1 Qd4 Qxg6 Rxf3 Nxf3 Qg7 Qh5 Bd7 Ne5 Ke7 Qh4+ Kd6 Qb4+ Kc7 Qxc3+ Bc6 Qa5+ Kd6 c4 dxc4 Nxc4+ Ke7 Qc5+ Kf7 Ne5+ Kg8 Nxc6 bxc6 Qxc6 Rf8 Qxe6+ Qf7 Qg4+ Qg7 Qe4 Rf7 Qh4 Qe5 h3 Qb5 Qg4+ Rg7 Qe6+ Rf7 Qg6+ Kf8 Qg3 Rf1+ Rxf1+ Qxf1+ Kh2 Qb5 h4 Qd7 Qf3+ Kg7 Kg3 Qc7+ Kh3 Qc5 Qd3 Qg1 Qg3+ Kh7 Qf3 Qc5; white_wins 0; black_wins 0; draws 0; 
r1b2k2/pp2n2Q/4prn1/2qp4/5P2/P1pB3R/2P1N1PP/R6K w - - acd 31; acs 135; bm Ng3; c3 "Rg3"; ce 265; pm Ng3; pv Ng3 Nxf4; white_wins 0; black_wins 0; draws 0; 
r1b2k2/pp2n2Q/4prn1/2qp4/5P2/P1pB2R1/2P1N1PP/R6K b - - acd 39; acs 1858; bm Bd7; c3 "Qf2"; ce -239; pm Bd7; pv Bd7; white_wins 0; black_wins 0; draws 0; 
r1b3k1/pp2n2p/4prn1/2qp3Q/5P2/P1pB3R/2P1N1PP/R6K w - - acd 34; acs 135; bm Qxh7+; c3 "Qxh7+"; ce 284; pm Qxh7+; pv Qxh7+ Kf8; white_wins 0; black_wins 0; draws 0; 
r1b3k1/pp2n2Q/4prn1/2qp4/5P2/P1pB3R/2P1N1PP/R6K b - - acd 42; acs 1858; bm Kf8; c3 "Kf8"; ce -361; pm Kf8; pv Kf8 Ng3 Nf5 Nh5 Qe7 Nxf6 Qxf6 Bxf5 exf5 Rg3 Qg7 Qxg6 Qxg6 Rxg6 Bd7 Rd6 Ba4 Kg1 Re8 Rxd5 Bxc2 Rc5 Be4 Rxc3 Rd8 Ra2 Kf7 g3 Bc6 Re2 Rd1+ Kf2 Be4 Ke3 Ra1 Rb2 Kf6 Rd2 Ke6 Kd4 Rf1 Rc5 a6 Rc3 Kd6 h4 Rh1 Kc4+ Kc7 Kb4+ Bc6 Kb3 Kb6 Rd6 Kb5 a4+ Kb6 Rc4 Ka7 Rc5; white_wins 0; black_wins 0; draws 0; 
r4rk1/p2b1qpp/1p2p1p1/P2pPn2/2pP2QP/2P5/2P1NPP1/R1B2RK1 w - - acd 45; acs 1858; bm a6; ce 42; pm a6; pv a6 Rfb8 g3 Rc8 Nf4 Nh6 Qh3 Qf5 Qxf5 gxf5 Ba3 Nf7 Bb4 Re8 Kg2 Bb5 Rh1 Rac8 f3 Bc6 Rhb1 Rc7 Rc1 Rd7 Re1 Rc7 Rf1 Rd7 Rh1 Bb5 Kf2 Rc7 Nh3 Rcc8 Rhb1 Nd8 Nf4 Bd7 Kg2 Nc6 Ba3 Nd8 Bd6 Nf7 Bb4; white_wins 0; black_wins 0; draws 0; 
r1b3k1/pp2nr1p/4ppn1/2qp2BQ/5P2/P1pB3R/2P1N1PP/R6K w - - acd 35; acs 135; bm Bxf6; c3 "Bxf6"; ce 298; pm Bxf6; pv Bxf6; white_wins 0; black_wins 0; draws 0; 
r4rk1/pp1b1qpp/4p1p1/P2pPn2/2pP2QP/2P5/2P1NPP1/R1B2RK1 b - - acd 44; acs 1858; bm b6; c3 "b6"; ce -40; pm b6; pv b6 a6 Ne7 Nf4 Rfe8 Nh3 Qf5 Qxf5 Nxf5 g3 Ne7 Ba3 Bb5 Kg2 Nc6 Bd6 Nd8 Rfb1 Bd7 Rh1 Rc8 Bb4 Nf7 g4 Bb5 f3 Bd7 Kg3 Bc6 Nf4 Rc7 Rhf1 Bb5 Rfb1 Bc6 Ng2 Bd7 Rf1 g5 f4 gxf4+ Nxf4 Bb5 Rfb1 Bc6 g5; white_wins 0; black_wins 0; draws 0; 
r1b3k1/pp2nr1p/4pBn1/2qp3Q/5P2/P1pB3R/2P1N1PP/R6K b - - acd 34; acs 135; bm Rxf6; c3 "Rxf6"; ce -305; pm Rxf6; pv Rxf6 Qxh7+; white_wins 0; black_wins 0; draws 0; 
r4rk1/pp1b1qpp/4p1p1/P2pPn2/2pP2Q1/2P5/2P1NPPP/R1B2RK1 w - - acd 42; acs 1858; bm Ba3; c3 "h4"; ce 33; pm Ba3; pv Ba3 Rfc8; white_wins 0; black_wins 0; draws 0; 
r1b2rk1/pp2n2p/4ppn1/2qp2BQ/5P2/P1pB1R2/2P1N1PP/R6K w - - acd 37; acs 135; bm Rh3; c3 "Rh3"; ce 302; pm Rh3; pv Rh3 Rf7 Bxf6 Rxf6 Qxh7+ Kf8 Ng3 Nf5 Nh5 Qe7 Nxf6 Qxf6 Bxf5 exf5 Rg3 Qg7 Qxg6 Qxg6 Rxg6 Bd7 Rd1 Kf7 Rg3 Re8 Rxc3 Bc6 Kg1 Re2 h3 Kg7 g3 a6 Rd4 Kf6 Rdd3 Kf7 Re3 Rd2 Rc5 Kg7 Re7+ Kg6 Rc3 d4 Rd3 Rg2+ Kf1 Kf6 Re5 Rxc2 Rxd4 Bg2+ Ke1; white_wins 0; black_wins 0; draws 0; 
r1b2rk1/pp3qpp/4p1p1/P2pPn2/2pP2Q1/2P5/2P1NPPP/R1B2RK1 b - - acd 45; acs 1858; bm Bd7; c3 "Bd7"; ce -44; pm Bd7; pv Bd7 Ba3 Rfc8 Ra2 Rc6 Bb4 Ra6 Rfa1 Qe8 h4 Qd8 g3 Nh6 Qg5 Nf7 Qxd8+ Nxd8 Kg2 Kf7 Nf4 Nc6 Kf3 h6 g4 Re8 g5 Rh8 Kg2 Re8 Bd6 Rh8 Bc5 Re8 Kg3 Rg8 Kg4 Rd8 Bd6 Rh8 Kg3 Ra8 Kg4 Rc8 Kg3 hxg5 hxg5; white_wins 0; black_wins 0; draws 0; 
r1b2rk1/pp2n2p/4ppn1/2qp2BQ/5P2/P1pB3R/2P1N1PP/R6K b - - acd 38; acs 141; bm Rf7; c3 "Rf7"; ce -306; pm Rf7; pv Rf7 Bxf6 Rxf6 Qxh7+ Kf8 Ng3 Rf5 Bxf5 exf5 Rh6 a5 h4 Qf2 h5 Qxg3 hxg6 Be6 g7+ Qxg7 Qxg7+ Kxg7 Rxe6 Kf7 Rb6 Rc8 Rxb7 Rc4 g3 Ke6 Kg2 Nc6 Kf2 Kd6 Ke3 Ra4 Kd3 Kc5 Kxc3 Nd4 Kb2 Nb5 Rb8 Nd6 Ra8 Kb5 Rb1 Rc4 c3 Ka4 Rd1 Nb5 Rxd5 Rxc3 Rg8 Rb3+ Kc1 Rc3+ Kd2; white_wins 0; black_wins 0; draws 0; 
r1b2rk1/pp3qpp/4p1p1/P2pPn2/2pP2Q1/2P3N1/2P2PPP/R1B2RK1 w - - acd 44; acs 1858; bm Ba3; c3 "Ne2"; ce 46; pm Ba3; pv Ba3 Re8 Rfb1 b6 Qd1 bxa5 Nxf5 gxf5 Bd6 Rd8 Rxa5 Rd7 Rba1 Rb7 Bc5 f4 f3 h6 Qc1 g5 R5a2 Kh7 Qf1 Kg8 Qd1 Kh7 Ra3 Kg7 Qf1 Kh7 Ra5 Kg7 Qe1 Kh7 Qd1 Kg7 R5a3 Kg8 Qe1 Kh7 R3a2 Kg7 h4; white_wins 0; black_wins 0; draws 0; 
r1b2rk1/pp2n1pp/4p1n1/2qpPpBQ/5P2/P1pB1R2/2P1N1PP/R6K w - f6 acd 38; acs 135; bm exf6; c3 "exf6"; ce 294; pm exf6; pv exf6; white_wins 0; black_wins 0; draws 0; 
r1b2rk1/pp2nqpp/4p1p1/P2pP3/2pP2Q1/2P3N1/2P2PPP/R1B2RK1 b - - acd 47; acs 1858; bm Bd7; c3 "Nf5"; ce -38; pm Bd7; pv Bd7 Ba3 Rfc8 Rfb1 b6 Nf1 bxa5 Bxe7 Qxe7 Rxa5 a6 Ne3 Bb5 f4 Rf8 g3 Rab8 Raa1 Qf7 Rf1 Rfe8 Kg2 Rb6 Ra5 Rf8 h4 Be8 Rh1 Qb7 Rha1 Bd7 Qe2 Bb5 Rh1 Be8 Qd1 Qf7 Qc1 Bb5 Qd2 Bc6 Rha1 Qb7 Kf2 Bd7 Qd1 Rb8 Kg2 Rf8; white_wins 0; black_wins 0; draws 0; 
r1b2rk1/pp2n1pp/4pPn1/2qp2BQ/5P2/P1pB1R2/2P1N1PP/R6K b - - acd 38; acs 135; bm gxf6; c3 "gxf6"; ce -304; pm gxf6; pv gxf6 Rh3 Rf7 Bxf6 Rxf6 Qxh7+ Kf8 Ng3 Rf5 Bxf5 exf5 Rh6 a5 h4 Qf2 h5 Qxg3 hxg6 Be6 g7+ Qxg7 Qxg7+ Kxg7 Rxe6 Kf7 Rb6 Rc8 Rxb7 Rc4 g3 Ke6 Kg2 Nc6 Kf2 Kd6 Ke3 Rd4 Rb5 Re4+ Kd3 Rd4+ Kxc3 Rc4+ Kd3 Rd4+ Ke3 Re4+ Kf2 Nd4 Rxa5 Re2+ Kf1 Rh2 Ra2 Nxc2 Kg1 Rd2 Rb2 Rd1+ Kh2 Ne3 Rb6+ Kc7 Re6; white_wins 0; black_wins 0; draws 0; 
r1b2rk1/pp2nqpp/4p1p1/3pP3/P1pP2Q1/2P3N1/2P2PPP/R1B2RK1 w - - acd 49; acs 1858; bm a5; c3 "a5"; ce 42; pm a5; pv a5 Bd7 h4 Nf5 Ne2 b6 a6 Ne7 Nf4 Rfe8 g3 Rac8 Ba3 Rcd8 Qg5 Rc8 Kg2 Nc6 Qg4 Qf5 Qd1 Qe4+ f3 Qf5 Nh3 h6 Qd2 Qf7 g4 Red8 Rh1 Ne7 Qf4 Qe8 Bd6 Bc6 Rhb1 Kh7 Qg3 Qf8 Rc1 Qf7 Qf4 Qe8 Rab1 Kg8 Qg3 Kh7 Nf4; white_wins 0; black_wins 0; draws 0; 
r1b2rk1/pp2nppp/4p1n1/2qpP1BQ/5P2/P1pB4/2P1N1PP/R4R1K w - - acd 40; acs 135; bm Rf3; c3 "Rf3"; cce 190; ce 290; pm Rf3 {5} Bh4 {1} Bxe7 {1}; pv Rf3 f5 exf6 gxf6 Rh3 Rf7 Bxf6 Rxf6 Qxh7+ Kf8 Ng3 Rf5 Bxf5 exf5 Rh6 a5 h4 Qf2 h5 Qxg3 hxg6 Be6 g7+ Qxg7 Qxg7+ Kxg7 Rxe6 Kf7 Rb6 Rc8 Rxb7 Rc4 g3 Ke6 Kg2 Kd6 Kf2 Nc6 Ke3 Rd4 Rb5 Re4+ Kd3 Rd4+ Kxc3 Rc4+ Kd3 Rd4+ Ke3 Re4+ Kf2 Nd4 Rxa5 Re2+ Kf1 Rh2 Ra2 Nxc2 Kg1 Rd2 Rb2 Rd1+ Kh2 Ne3 Rb6+ Kc7 Re6 Rd2+ Kh1; white_wins 5; black_wins 2; draws 0; 
r1b2rk1/pp3qpp/2n1p1p1/3pP3/P1pP2Q1/2P3N1/2P2PPP/R1B2RK1 b - - acd 43; acs 1858; bm Bd7; c3 "Ne7"; ce -42; pm Bd7; pv Bd7 Ba3; white_wins 0; black_wins 0; draws 0; 
r1b2rk1/pp2nppp/4p1n1/2qpP1BQ/5P2/P1pB1R2/2P1N1PP/R6K b - - acd 39; acs 135; bm f6; c3 "f5"; cce -444; ce -313; pm f5 {3} f6 {1} h6 {1}; pv f6 exf6; white_wins 5; black_wins 0; draws 0; 
r1b2rk1/pp3qpp/2n1p1p1/3pP3/P1pP2Q1/2P5/2P1NPPP/R1B2RK1 w - - acd 45; acs 1858; bm h4; c3 "Ng3"; ce 33; pm h4; pv h4 Qf5; white_wins 0; black_wins 0; draws 0; 
r1b2rk1/ppq3pp/2n1p1p1/3pP3/P1pP2Q1/2P5/2P1NPPP/R1B2RK1 b - - acd 40; acs 1858; bm Qf7; c3 "Qf7"; ce -35; pm Qf7; pv Qf7 h3 Qe8 a5 Bd7 h4 Qf7 Ba3 Rfe8 Bd6 b6 a6 Ne7 g3 Qf5 Qxf5 gxf5 Kg2 Ng6 Rfc1 Rad8 Rcb1 Rc8 Rh1 Kf7 Rhc1 Bb5 Bb4 Bc6 Rh1 Bb5 h5 Ne7 Bxe7 Kxe7 Nf4 Kf7 Rhb1 Bc6; white_wins 0; black_wins 0; draws 0; 
r1b2rk1/pp3ppp/2n1p1n1/2qpP1BQ/5P2/P1pB4/2P1N1PP/R4RK1 w - - acd 42; acs 1858; bm Kh1; c3 "Kh1"; cce 111; ce 321; pm Kh1 {8}; pv Kh1; white_wins 5; black_wins 3; draws 0; 
r1b2rk1/pp3ppp/2n1p1n1/2qpP1BQ/5P2/P1pB4/2P1N1PP/R4R1K b - - acd 34; acs 135; bm Rd8; c3 "Nce7"; cce -148; ce -286; pm Nce7 {7} Bd7 {2}; pv Rd8 Bxd8; white_wins 6; black_wins 3; draws 0; 
r1b2rk1/ppq3pp/2n1p1p1/3pP1B1/P1pP2Q1/2P5/2P1NPPP/R4RK1 w - - acd 47; acs 1858; bm Bc1; c3 "Bc1"; cce 266; ce 40; pm Bc1 {4} h4 {1}; pv Bc1 Qf7 Ba3 Qf5 Qxf5 Rxf5 h4 b6 Rfb1 Nd8 Rb2 Rf7 Bd6 Rb7 Rab1 Nf7 Ba3 Bd7 a5 b5 f3 a6 Kf2 g5 hxg5 Nxg5 Rh1 Nf7 Rbb1 Nd8 g4 Be8 Nf4 Rf7 Kg3 Bd7 Ra1 Nc6 Bd6 Ra7 Ng2 h6 Ne3 Ra8 Bc5 Re8 f4 Bc8; white_wins 3; black_wins 0; draws 2; 
r1b2rk1/pp3ppp/2n1p1n1/q2pP1BQ/5P2/P1pB4/2P1N1PP/R3K2R w KQ - acd 42; acs 1858; bm O-O; c3 "O-O"; ce 198; pm O-O; pv O-O; white_wins 0; black_wins 0; draws 0; 
r1b2rk1/pp4pp/2n1p1p1/q2pP1B1/P1pP2Q1/2P5/2P1NPPP/R4RK1 b - - acd 45; acs 1858; bm Qb6; c3 "Qc7"; cce -63; ce -44; pm Qc7 {5} Bd7 {3} Rf7 {3} Rb8 {2} b6 {1}; pv Qb6 Rfb1 Qc7 Bc1 b6 h4 Qf7 f3 Qf5 Qxf5 Rxf5 Ba3 Rf7 Bd6 Na5 Rb2 Nb7 Bb4 Nd8 Rab1 Bd7 Ra2 Bc8 Bd6 Nb7 Ba3 Nd8 Rab2 Nc6 Kf2 Bd7 Bd6 Re8 Ra1 Na5 Bb4 Bc6 Rbb1 Ra8 g4 h6 Kg3 g5 hxg5 hxg5; white_wins 7; black_wins 5; draws 2; 
r1b2rk1/pp3ppp/2n1p1n1/q2pP1BQ/5P2/P1pB4/2P1N1PP/R4RK1 b - - acd 40; acs 1858; bm Qc7; c3 "Qc5+"; cce -190; ce -191; pm Qc5+ {8} Bd7 {3} Rb8 {1} Re8 {1} b6 {1}; pv Qc7 Rf3 f5 exf6 gxf6 Bh6 f5 Bxf8 Kxf8 g4 Qf7 Rb1 Rb8 Rg3 Bd7 Nxc3 Nce7 gxf5 exf5 Ne2 Kg8 Nd4 Kh8 Nf3 Ne5 Qxf7 Nxf7 Ng5 Nxg5 Rxg5 b6 Kf2 Rf8 h4 d4 Rb4 Nc6 Rb5 Be6 Rg1 Rf6 Be2 Ne7 Rb4 d3 Bxd3 Nc6 Ra4 Rh6 Kg3 Rg6+ Kf2 Rxg1; white_wins 10; black_wins 4; draws 0; 
r1b2rk1/pp4pp/2n1p1p1/q2pP1B1/2pP2Q1/P1P5/2P1NPPP/R4RK1 w - - acd 47; acs 1858; bm a4; c3 "a4"; cce -37; ce 36; pm a4 {14} h4 {5} f3 {3} f4 {2} Rfb1 {1}; pv a4 Qc7 h4 Qf7 Bc1 b6 Ba3 Qf5 Qxf5 Rxf5 Rfb1 Rf7 Bb4 Rb7 f3 Bd7 Bd6 Na5 Kf2 Bc8 Nf4 Bd7 Rh1 Nc6 Ba3 Rd8 g3 Re8 Bd6 Ra8 Rhb1 Na5 Bb4 Nc6 Rh1 Bc8 Kg2 Bd7 Bd6 Kf7 g4 Kg8 g5 Bc8 Kf2 Rf7 Kg3; white_wins 8; black_wins 10; draws 6; 
r1b2rk1/pp3ppp/2n1p1n1/q2pP1B1/3p1PQ1/P1PB4/2P1N1PP/R3K2R w KQ - acd 39; acs 1858; bm O-O; c3 "Qh5"; cce 56; ce 135; pm O-O {4} h4 {4} Qh5 {3}; pv O-O Nce7; white_wins 4; black_wins 3; draws 1; 
r1b2rk1/pp3ppp/2n1p1B1/q2pP1B1/2pP2Q1/P1P5/2P1NPPP/R4RK1 b - - acd 47; acs 1858; bm fxg6; c3 "fxg6"; cce 37; ce -38; pm fxg6 {25}; pv fxg6 a4 Qc7 Bc1 Qf7 Ba3 Qf5 Qxf5 Rxf5 h4 Rf7 Bd6 b6 Ra2 Na5 Rb2 Nb7 Bb4 Nd8 Rfb1 Bd7 a5 bxa5 Bxa5 Nc6 Bc7 h6 f3 Ne7 Ng3 a5 Kf2 a4 Bd6 g5 hxg5 hxg5 Rb7 Ng6 Kg1 Nf4 Ba3 Bc6 R7b2 Rfa7 Kf2 Kf7 Nf1 Ng6 Ne3 Ne7 Ng4 Ra5 Rb6 R5a6 Rxa6 Rxa6 Ne3 Ng6; white_wins 8; black_wins 10; draws 6; 
r1b2rk1/pp3ppp/2n1p1n1/q2pP1BQ/3p1P2/P1PB4/2P1N1PP/R3K2R b KQ - acd 38; acs 1858; bm Qc7; c3 "dxc3"; ce -177; pm Qc7; pv Qc7 O-O; white_wins 0; black_wins 0; draws 0; 
r1b2rk1/pp3ppp/2n1p1n1/q2pP1B1/2pP2Q1/P1PB4/2P1NPPP/R4RK1 w - - acd 50; acs 1858; bm Bxg6; c3 "Bxg6"; cce -37; ce 35; pm Bxg6 {25}; pv Bxg6 fxg6 a4 Qc7 h4 Qf7 f3 b6 Bc1 Qf5 Ba3 Qxg4 fxg4 Rxf1+ Rxf1 Bd7 Nf4 Re8 Ra1 Nd8 Bd6 Nb7 Kh2 Rc8 Bb4 Na5 Kg3 Re8 Kf2 Kf7 Ke3 Nc6 Bd6 Na5 Rf1 Kg8 Ba3 Nc6 Ra1 Kf7 Kf2 Na5 Bb4 Nc6 g5 Na5 Kf3 Rh8 Ke3 Nc6 Bd6 Re8 g4 Na5; white_wins 8; black_wins 10; draws 6; 
r1b2rk1/pp2nppp/2n1p3/q2pP1B1/3p2Q1/P1PB4/2P1NPPP/R3K2R w KQ - acd 39; acs 1183; bm Qh5; c3 "f4"; cce 105; ce 83; id "Hyatt-Quiet.0667"; pm f4 {44} Bxe7 {7}; pv Qh5 h6 Bxh6 gxh6 Qxh6 Nf5 Qg5+; white_wins 21; black_wins 12; draws 5; 
r1b2rk1/pp3ppp/2n1p1n1/q1ppP1B1/3P2Q1/P1PB4/2P1NPPP/R4RK1 b - - acd 42; acs 1858; bm Qa4; c3 "c4"; cce -45; ce -7; pm Qa4 {42} c4 {25} b6 {5}; pv Qa4 Qg3; white_wins 29; black_wins 22; draws 18; 
r1b2rk1/pp2nppp/2n1p3/q2pP1B1/3p1PQ1/P1PB4/2P1N1PP/R3K2R b KQ - acd 38; acs 1858; bm Ng6; c3 "Ng6"; cce -167; ce -120; pm dxc3 {17} Ng6 {11} Nf5 {5} b6 {5} Re8 {3} Bd7 {2} Kh8 {1}; pv Ng6; white_wins 20; black_wins 8; draws 4; 
r1b2rk1/pp3ppp/2n1p1n1/q1ppP1B1/3P2Q1/P1PB4/2P1NPPP/R3K2R w KQ - acd 46; acs 1858; bm O-O; c3 "O-O"; cce 5; ce 0; pm O-O {72} h4 {14} f4 {2} Kd1 {1}; pv O-O Qa4 f3 Bd7 Rfd1 h6 Be3 Nce7 h4 c4 Bxg6 fxg6 Ra2 Qa5 Bd2 Rf5 Rb1 b5 a4 bxa4 Nf4 Kh7 Raa1 Qa6 Bc1 Qa5 Bd2; white_wins 32; black_wins 31; draws 19; 
r1b2rk1/pp2nppp/2n1p3/q1ppP1B1/3P2Q1/P1PB4/2P2PPP/R3K1NR w KQ - acd 49; acs 1858; bm Ne2; c3 "Ne2"; cce 84; ce 0; pm Ne2 {143} Bd2 {2}; pv Ne2 Ng6 O-O Qa4 f3 Bd7 Rfd1 h6 Be3 Nce7 h4 c4 Bxg6 fxg6 Ra2 Rf7 Bd2 b5 Rb1 Qa6 Nf4 Kh7 a4 bxa4 Bc1 Raf8 Qg3 Qa5 Rb7 Bc6 Rb4 Bd7 Rb7; white_wins 61; black_wins 38; draws 22; 
r1b2rk1/pp2nppp/2n1p3/q1ppP1B1/3P2Q1/P1PB4/2P1NPPP/R3K2R b KQ - acd 48; acs 1858; bm Ng6; c3 "cxd4"; cce -51; ce 0; pm Ng6 {90} cxd4 {46} Qa4 {23} Re8 {7} b6 {7} Qc7 {1}; pv Ng6 O-O Qa4 f3 Bd7 Rfd1 h6 Be3 Nce7 h4 c4 Bxg6 fxg6 Ra2 Rf7 Bd2 b5 Rb1 Qa6 Nf4 Kh7 a4 bxa4 Bc1 Raf8 Qg3 Qa5 Rb7 Bc6 Rb4 Bd7 Rb7; white_wins 67; black_wins 50; draws 31; 
r1bq1rk1/pp2nppp/2n1p3/2ppP3/3P2Q1/P1PB4/2P2PPP/R1B1K1NR w KQ - acd 39; acs 1739; bm Nf3; c3 "Bg5"; cce 92; ce 34; pm Nf3 {2136} Qh5 {1712} Bg5 {149} Qh4 {67} Ne2 {20} Bh6 {4} Qh3 {4} dxc5 {2} f4 {2} h4 {1}; pv Nf3 f5 Qg5 b6 O-O Bd7 Be3 c4 Be2 h6 Qg3 Kh8 Rfe1 Qe8 Bc1 Qh5 Nd2 Qg6 Qxg6 Nxg6 Nf3 Nge7 a4 g5 Ba3 g4 Nd2 Rg8 f3 Kh7 Reb1 gxf3; white_wins 1877; black_wins 1057; draws 1025; Opening ECO:C18p; French: Winawer, 6...Ne7 7.Qg4 O-O 8.Bd3 Nbc6; 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Qg4 O-O 8.Bd3 Nbc6 *; 
r1bq1rk1/pp2nppp/2n1p3/2ppP1B1/3P2Q1/P1PB4/2P2PPP/R3K1NR b KQ - acd 43; acs 1858; bm Qa5; c3 "Qa5"; cce -86; ce -7; pm Qa5 {145} Qc7 {3} c4 {1}; pv Qa5 Ne2; white_wins 63; black_wins 39; draws 22; 
rnbq1rk1/pp2nppp/4p3/2ppP3/3P2Q1/P1P5/2P2PPP/R1B1KBNR w KQ - acd 38; acs 300; bm Bd3; c3 "Bd3"; cce 86; ce 2; id "ATG_Reg_18-085"; pm Bd3 {6528} Nf3 {914} Bg5 {32} h4 {26} Qh5 {5} Qh3 {4} Bd2 {3} f4 {3} Bb2 {2} Bh6 {2} Qd1 {2} g3 {2} Nh3 {1} Rb1 {1} a4 {1} dxc5 {1}; pv Bd3 c4 Bh6 Ng6 Bxg6 fxg6 Bd2 Nc6 Ne2 Bd7 h4 Qe8 Nf4 Ne7 a4 Nf5 a5 b5 g3 b4 O-O Rb8 Rfb1 Qd8 Ng2 b3 Qd1 bxc2 Qxc2 Rxb1+ Qxb1 Qc7 Qc1 Rb8 g4 Ne7 Nf4 Rb3 Kg2 Qb8 Be3 Qb5 a6 Rb2; white_wins 3231; black_wins 1894; draws 1788; Opening ECO:C18n; French: Winawer, 6...Ne7 7.Qg4 O-O; 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Qg4 O-O *; 
rnbq1rk1/pp2nppp/4p3/2ppP3/3P2Q1/P1PB4/2P2PPP/R1B1K1NR b KQ - acd 39; acs 1800; bm c4; c3 "Nbc6"; cce -90; ce -26; pm Nbc6 {4088} f5 {1340} c4 {408} Qa5 {381} Nd7 {144} Qc7 {63} Ng6 {50} f6 {23} Nf5 {19} cxd4 {19} Bd7 {1} Kh8 {1} Re8 {1} g6 {1}; pv c4 Bh6 Ng6 Bxg6 fxg6 Bc1 Qe8 h4 Nc6 h5 gxh5 Rxh5 Ne7 f3 Qg6 Rg5 Qf7 Ne2 h6 Rh5 Qg6 Qxg6 Nxg6 a4 a5 Ba3 Rf7 Bc5 Bd7 Rh1 Ra6 Kf2 b6 Bd6 Bc6 Ra2 Raa7 Rb1 Rab7 g3 Kh8 Kg2 Kh7 Raa1 Kg8 f4; white_wins 2906; black_wins 1655; draws 1589; Opening ECO:C18; Variation French: Winawer, advance (5...Ne7); Comment *pwo 6/01 add, nat, footnote 66 (Gligoric, 1962); 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. a3 Bxc3+ 6. bxc3 c5 7. Qg4 O-O 8. Bd3 *; 
rnbqk2r/pp2nppp/4p3/2ppP3/3P4/P1P5/2P2PPP/R1BQKBNR w KQkq - acd 42; acs 4200; bm Qg4; c3 "Qg4"; cce 77; ce 12; id "Silver2.27"; pm Qg4 {13950} Nf3 {11087} a4 {1909} h4 {1703} Bd3 {309} f4 {96} Bd2 {61} Be2 {58} Ne2 {36} Bb5+ {17} Rb1 {17} Qh5 {15} Bg5 {11} Qd3 {8} dxc5 {6} Nh3 {5} Qd2 {3} Be3 {2} g3 {2} g4 {2} Bf4 {1}; pv Qg4 O-O Bd3 c4 Bh6 Ng6 Bxg6 fxg6 Bd2 Qe8 Ne2 Nc6 Nf4 Qf7 h4 Qf5 Qxf5 Rxf5 a4 b6 Ke2 Bd7 Bc1 Rff8 f3 Na5 Ke3 Kf7 Ba3 Rh8 Bb4 Nc6 Kf2 h6 h5 gxh5 Nxh5 Rac8 Nf4 Na5 Ne2 Nb7 a5 bxa5 Bxa5; white_wins 11105; black_wins 6898; draws 6246; Opening French Defense: Winawer Variation. Advance Variation; 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.a4; CaxtonID: 700 ECO: C18; 
rnbqk2r/pp2nppp/4p3/2ppP3/3P2Q1/P1P5/2P2PPP/R1B1KBNR b KQkq - acd 40; acs 2602; bm O-O; c3 "O-O"; cce -88; ce -10; pm O-O {7513} Qc7 {3547} Kf8 {1408} cxd4 {759} Nf5 {421} Ng6 {169} Qa5 {118} Nbc6 {92} g6 {8} Rg8 {3} f5 {1} f6 {1} h5 {1}; pv O-O Bd3 c4 Bh6 Ng6 Bxg6 fxg6 Bd2 Nc6 Ne2 Qe8 h4 Ne7 Nf4 Bd7 a4 a5 h5 gxh5 Rxh5 Ng6 Nxg6 Qxg6 Qxg6 hxg6 Rh1 Kf7 Ke2 Rfb8 Bc1 Rh8 Rxh8 Rxh8 Be3 Rh2 Kf3 b6 Bd2 Rh8 Kg3 Bc6 f3 Bd7 Be3 Bc6 Kg4; white_wins 5778; black_wins 3357; draws 3117; Opening French Defense: Winawer Variation. Poisoned Pawn Variation Paoli Variation; 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Qg4 Qc7 8.Qxg7 Rg8 9.Qxh7 cxd4 10.Kd1; CaxtonID: 720 ECO: C18; 
rnbqk2r/ppp1nppp/4p3/3pP3/3P4/P1b5/1PP2PPP/R1BQKBNR w KQkq - acd 38; acs 561; bm bxc3; c3 "bxc3"; cce 85; ce 2; pm bxc3 {8244}; pv bxc3 c5 Qg4 O-O Nf3 c4; white_wins 3147; black_wins 1861; draws 1740; 
rnbqk2r/ppp1nppp/4p3/3pP3/3P4/P1P5/2P2PPP/R1BQKBNR b KQkq - acd 42; acs 1858; bm c5; c3 "c5"; cce -84; ce -17; id "Neutral.347"; pm c5 {6811} b6 {1208} O-O {217} Nd7 {50} Nbc6 {7} Bd7 {5} Qd7 {4} Ng6 {2} c6 {2} Nf5 {1} a5 {1} a6 {1}; pv c5 Qg4 Kf8 Qd1 h6 Nf3 Bd7 Bd3 c4 Be2 Ng6 g3 Kg8 O-O a5 Ne1 b5 f4 Kh7 Ng2 Nc6 Ne3 Nge7 Bf3 Rf8 Bd2 Qc7 Qe2 Qa7 Rfe1 Rab8 Rab1 Qc7 f5 f6 exf6 Rxf6 fxe6 Bxe6 Ng4 Rff8; white_wins 3167; black_wins 1876; draws 1750; 
rnbqk2r/ppp1nppp/4p3/3pP3/1b1P4/2N5/PPP2PPP/R1BQKBNR w KQkq - acd 38; acs 544; bm a3; c3 "a3"; cce 72; ce 7; pm a3 {8358} Bd2 {1592} Nf3 {1085} Qg4 {728} Bd3 {82} f4 {34} h4 {34} g3 {26} Bg5 {21} Ne2 {18} Be2 {6} Qd3 {5} Bb5+ {4} a4 {3}; pv a3 Bxc3+ bxc3 c5 Qg4 O-O Nf3 c4 Be2 Bd7 O-O Qe8 Bd2 b6 Rfb1 Kh8 Qh5 Nbc6 Nh4 Nb8 Ra2 Nbc6 Rab2 Rg8 Bg5 Rc8 g3 Qf8 Bd2 h6 Qg4 f6 exf6 Qxf6 Qf3 Qxf3 Nxf3; white_wins 4367; black_wins 2788; draws 2591; Opening ECO:C16j; French: Winawer, Advance, 4...Ne7; 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 *; 
rnbqk2r/ppp1nppp/4p3/3pP3/1b1P4/P1N5/1PP2PPP/R1BQKBNR b KQkq - acd 39; acs 1858; bm Bxc3+; c3 "Bxc3+"; cce -85; ce -17; pm Bxc3+ {8244} Ba5 {108} Bxa3 {5} b6 {1}; pv Bxc3+ bxc3 c5 Qg4 Kf8 Qd1 Bd7 Nf3 Ba4 Bd3 a6 O-O Nd7 g3 h6 Nh4 g6 Be3 Rc8 Nf3 Kg7 h4 Qa5 Bd2 Qc7 Rb1 b5 Rb2 Nc6 Bf4 Qa5 Qa1 Qc7 Kg2 Qb6 Bd2 Qd8 Rh1 c4 Be2; white_wins 3200; black_wins 1886; draws 1755; Opening ECO:C16m; French: Winawer, Advance, 4...Ne7 5.a3; 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.a3 *; 
rnbqk1nr/ppp2ppp/4p3/3p4/1b1PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - acd 43; acs 19510; bm a3; c3 "e5"; cce 68; ce 15; pm e5 {59372} Ne2 {4349} exd5 {3064} a3 {2158} Bd3 {1627} Bd2 {1089} Qd3 {791} Qg4 {386} f3 {13} Qf3 {10} Be3 {9} Nf3 {4} Bb5+ {1} Qe2 {1} Qh5 {1} Rb1 {1} h3 {1}; pv a3 Bxc3+ bxc3 Ne7 exd5 exd5 Bd3 c5 dxc5 Nd7 Be3 Qa5 Ne2 Nxc5 O-O O-O Re1 Re8 Nf4 Nxd3 cxd3 Bf5 Qb3 b6 Qb4 Ng6 Qxa5 bxa5 Nxg6 Bxg6 Red1 f6; white_wins 24035; black_wins 15655; draws 15019; Opening French Defense: Winawer Variation. Winckelmann-Riemer Gambit; 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.a3; CaxtonID: 696 ECO: C15; 
rnbqk1nr/ppp2ppp/4p3/3pP3/1b1P4/2N5/PPP2PPP/R1BQKBNR b KQkq - acd 40; acs 4260; bm c5; c3 "Ne7"; cce -75; ce 0; id "ATG_Reg_18-101"; pm c5 {40417} Ne7 {11997} b6 {3639} Qd7 {2905} Bxc3+ {251} Bd7 {149} f6 {125} Bf8 {74} Nc6 {58} h5 {42} Nd7 {14} f5 {14} Nh6 {11} Qe7 {7} a6 {5} c6 {4} Be7 {3} h6 {3} Qh4 {2} a5 {2} Ba5 {1}; pv c5 a3 Bxc3+ bxc3 Ne7 Qg4 O-O Nf3 Qa5 Bd2 c4 Be2 Nbc6 O-O f6 Qh3 fxe5 dxe5 Ng6 Ng5 h6 Bg4 hxg5 Bxe6+ Bxe6 Qxe6+ Kh7 Qh3+ Kg8 Qe6+; white_wins 20930; black_wins 13103; draws 12212; Opening French Defense: Winawer Variation. Advance Variation; 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5; CaxtonID: 703 ECO: C16; 
rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - acd 43; acs 5700; bm Nd2; c3 "Nc3"; c4 "Magnus Carlsen"; cce 56; ce 26; id "C.A.P. 445686"; pm Nc3 {144829} Nd2 {68023} e5 {24777} exd5 {12512} Bd3 {1490} Be3 {146} c4 {143} c3 {39} Nf3 {10} Bb5+ {6} f3 {5} Ne2 {4} g3 {3} Bd2 {2} Bf4 {1} Bg5 {1} Qe2 {1} Qg4 {1} a3 {1} f4 {1}; pv Nd2 c5 exd5 exd5 Ngf3 Nf6 Bb5+ Bd7 Bxd7+ Nbxd7 O-O Be7 dxc5 Nxc5 Nb3 Nce4 Nfd4 O-O Nf5 Re8 Nxe7+ Rxe7 c3 Qc7 Be3 Rae8 Nd4 Qd7 h3 h6 Qf3 Ng5 Bxg5 hxg5 a4 Qc7 a5 Re4 Qd3 g4 hxg4 Nxg4 Qh3 Nf6 a6 bxa6 f3 Re2 Nxe2 Rxe2 Rxa6 Rxb2; white_wins 87302; black_wins 60026; draws 67092; Opening French Defense: Schlechter Variation.; 1.e4 e6 2.d4 d5 3.Bd3; CaxtonID: 595 ECO: C00; 
rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - acd 37; acs 2080; bm Nf6; c3 "Bb4"; c4 "Hikaru Nakamura"; cce -62; ce -7; pm Bb4 {72863} Nf6 {53722} dxe4 {14045} Nc6 {3514} Be7 {1914} c6 {707} h6 {243} a6 {223} c5 {179} b6 {57} Ne7 {42} g6 {22} f5 {20} Nd7 {6} Qd7 {2} e5 {2} Bc5 {1} Bd6 {1} Qf6 {1} f6 {1}; pv Nf6 Bg5 Bb4 exd5 Bxc3+ bxc3 Qxd5 Nf3 Ne4 Bd2 Nxd2 Qxd2 b6 Bd3 Bb7 O-O Nd7 a4 Qd6 Qe2 a5 Be4 Bxe4 Qxe4 O-O c4 Nf6 Qd3 Rfd8 Rfe1 h6 h3 Nd7 Rab1 Qc6 Rb5 Qd6 c3 Nf6; white_wins 48782; black_wins 32654; draws 33722; Opening French Defense: Winawer Variation.; 1.e4 e6 2.d4 d5 3.Nc3 Bb4; CaxtonID: 655 ECO: C10; 
rnbqkbnr/pppp1ppp/4p3/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - acd 40; acs 3960; bm d4; c3 "d4"; c4 "Magnus Carlsen"; cce 53; ce 22; pm d4 {225207} d3 {13576} Nf3 {7442} Nc3 {4797} Qe2 {3566} f4 {1263} b3 {684} c4 {617} c3 {302} g3 {174} Ne2 {82} e5 {79} Bb5 {36} a3 {17} Be2 {16} Qf3 {11} Bc4 {10} a4 {9} g4 {8} h4 {7} Ke2 {4} Nh3 {3} Qh5 {2} h3 {2} Na3 {1} b4 {1} f3 {1}; pv d4 d5 Nd2 c5 Ngf3 Nf6 exd5 exd5 Bb5+ Bd7 Bxd7+ Nbxd7 O-O Be7 dxc5 Nxc5 Nb3 Nce4 Nbd4 O-O c3 Re8 Bf4 Qb6 Qb3 Bd6 Bxd6 Nxd6 Qxb6 axb6 a3 g6 Rfe1 Nfe4 Rad1 Kg7 Re2 Rec8 g3 Re8 Rde1 h5 Kg2; white_wins 89304; black_wins 62896; draws 67317; Opening French Defense: Horwitz Attack.; 1.e4 e6 2.b3; CaxtonID: 632 ECO: C00; 
rnbqkbnr/pppp1ppp/4p3/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - acd 39; acs 4080; bm d5; c3 "d5"; c4 "Hikaru Nakamura"; cce -58; ce -23; id "C.A.P. 445770"; pm d5 {251587} c5 {4019} b6 {1646} a6 {745} Nc6 {693} Be7 {634} Nf6 {385} h6 {289} d6 {244} f6 {131} Bb4+ {101} Ne7 {96} g6 {96} c6 {74} b5 {63} a5 {40} f5 {35} Qh4 {16} h5 {13} g5 {10} Qf6 {7} e5 {5} Bd6 {3} Nh6 {3} Ke7 {2} Qe7 {1}; pv d5 Nd2 c5 exd5 exd5 Ngf3 Nf6 Bb5+ Bd7 Bxd7+ Nbxd7 O-O Be7 dxc5 Nxc5 Nb3 Nce4 Be3 O-O Nfd4 Re8 c3 Bd6 Nf5 Be5 Nbd4 Nd6 Nxd6 Qxd6 Nf3 Ng4 Nxe5 Nxe5 Bf4 Qd7 Re1 Nc4 b3 Rxe1+ Qxe1 Re8 Qd1 Nb6 Rc1 Qf5 Be3 h6 Qe2; white_wins 91835; black_wins 62619; draws 68660; Opening French Defense: Baeuerle Gambit.; 1.e4 e6 2.d4 b5; CaxtonID: 654 ECO: C00; 
rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - acd 53; acs 4579200; bm d4; c0 "e4"; c2 "perft 1 20 perft 2 400 perft 3 8902 perft 4 197281 perft 5 4865609 perft 6 119060324"; c3 "e4"; c4 "c4"; cce 38; ce 24; id "Fundamental Opening Position"; pm e4 {2379495} d4 {1725526} Nf3 {483679} c4 {479713} g3 {39820} f4 {35589} b3 {27764} Nc3 {13010} e3 {2686} b4 {2458} g4 {2450} c3 {1654} d3 {1649} a3 {1150} h3 {717} a4 {552} h4 {425} f3 {363} Nh3 {82} Na3 {28}; pv d4 Nf6 c4 e6 Nf3 b6 a3 Bb7 Nc3; white_wins 1826279; black_wins 1425008; draws 1430947; Opening Anderssen Opening: General.; 1.a3; CaxtonID: 0 ECO: A00; 
rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - acd 48; acs 212911; bm e6; c0 "d5"; c3 "e6"; c4 ""; cce -38; ce -16; id "es-dc-neutral.0005"; pm c5 {1218905} e5 {412609} e6 {257916} c6 {204175} d5 {78062} d6 {71821} g6 {57457} Nf6 {46929} Nc6 {20542} b6 {4882} a6 {1853} g5 {987} h6 {878} a5 {501} h5 {447} Na6 {410} f6 {336} f5 {276} Nh6 {273} b5 {241}; pv e6 d4 d5 Nd2 c5 Ngf3 Nf6 exd5 exd5 Bb5+ Bd7 Bxd7+ Nbxd7 O-O Be7 dxc5 Nxc5 Nb3 Nce4 Nfd4 O-O Nf5 Re8 Nxe7+ Rxe7 Nd4 Rc8 Re1 Nd6 Rxe7 Qxe7 Bf4 a6 Bxd6 Qxd6 c3 g6 g3 Ne4 Kg2 Qb6 Qb3 Qxb3; white_wins 874667; black_wins 685852; draws 642462; Opening ECO:B00; Opening: King's pawn opening; 1. e4 *;