Why quit playing chess 5

[Henk]

In this position I played Na6?? and after Ba3 I lost the game.


Maybe because I thought half an hour about move 12.

If I think longer than 15 minutes I might as well resign.

[d] rnb2rk1/pp3ppp/5q2/2Pp4/3N4/4R3/P1P2PPP/R1BQ2K1 b - - 0 14


[pgn]
[Event "?"]
[Site "?"]
[Date "?"]
[Round "-"]
[White "?"]
[Black "?"]
[Result "*"]

1. e4 d6 2. d4 e5 3. Nf3 exd4 4. Nxd4 Be7 5. Bc4 Nf6 6. Nc3 O-O 7. O-O Nxe4
8. Nd5 Bf6 9. Re1 Nc5 10. Re3 c6 11. Nxf6+ Qxf6 12. b4 d5 13. Bxd5 cxd5 14.
bxc5 Na6 15. Ba3 Rd8 16. c6
*
[/pgn]

[Dann Corbit]

It's OK to quit playing chess when you decide that you can no longer improve and the game is no longer fun for you.

Otherwise, why quit?

I am a much better player now than I was ten years ago.
I hope to say the same thing ten years from now.

[Dann Corbit]

On the other hand, I very, very rarely play against people anymore.
I find that people {in general} are rude, abusive and childish when playing chess.
They accuse you of cheating when in fact it is they who are cheating.
They disconnect to avoid a loss when they are dead lost.
They use bad language, bad manners and other ill skills that would make any sensible mother blanche.

So I confine my OTB chess to a very small group of well behaved friends and to computer opponents.

[Henk]

This game I played in real life.

It's time control that bothers me. Always thinking much too long or too short. Getting tired making blunders etcetera.

My opponent was thinking very long at move 8 but that it is no reason to start aping.

Actually 10 .. c6? was first bad move. When playing that move I underestimated 12. b4.

[Dann Corbit]

This game I played in real life.

It's time control that bothers me. Always thinking much too long or too short. Getting tired making blunders etcetera.

My opponent was thinking very long at move 8 but that it is no reason to start aping.

Actually 10 .. c6? was first bad move. When playing that move I underestimated 12. b4.

All the great players blunder.
Yes, even Capablanca, Fischer, and Kasparov.
Magnus can be magnanimous (unintentionally) too.
OK, they do it a lot less than we do. But they still do it.

In fact, if you don't make any mistakes, you will really, really scare me.

[Lyudmil Tsvetkov]

In this position I played Na6?? and after Ba3 I lost the game.


Maybe because I thought half an hour about move 12.

If I think longer than 15 minutes I might as well resign.

[d] rnb2rk1/pp3ppp/5q2/2Pp4/3N4/4R3/P1P2PPP/R1BQ2K1 b - - 0 14


[pgn]
[Event "?"]
[Site "?"]
[Date "?"]
[Round "-"]
[White "?"]
[Black "?"]
[Result "*"]

1. e4 d6 2. d4 e5 3. Nf3 exd4 4. Nxd4 Be7 5. Bc4 Nf6 6. Nc3 O-O 7. O-O Nxe4
8. Nd5 Bf6 9. Re1 Nc5 10. Re3 c6 11. Nxf6+ Qxf6 12. b4 d5 13. Bxd5 cxd5 14.
bxc5 Na6 15. Ba3 Rd8 16. c6
*
[/pgn]

you outplayed him in the opening; why not simply continue 12...Ne6?

after 14...Nc6 black is also slightly better.

[Lyudmil Tsvetkov]

On the other hand, I very, very rarely play against people anymore.
I find that people {in general} are rude, abusive and childish when playing chess.
They accuse you of cheating when in fact it is they who are cheating.
They disconnect to avoid a loss when they are dead lost.
They use bad language, bad manners and other ill skills that would make any sensible mother blanche.

So I confine my OTB chess to a very small group of well behaved friends and to computer opponents.

that is why I also prefer engines. they have good manners almost always, with some exceptions from SF, when it attacks too vigorously...

[Henk]

In this position I played Na6?? and after Ba3 I lost the game.


Maybe because I thought half an hour about move 12.

If I think longer than 15 minutes I might as well resign.

[d] rnb2rk1/pp3ppp/5q2/2Pp4/3N4/4R3/P1P2PPP/R1BQ2K1 b - - 0 14


[pgn]
[Event "?"]
[Site "?"]
[Date "?"]
[Round "-"]
[White "?"]
[Black "?"]
[Result "*"]

1. e4 d6 2. d4 e5 3. Nf3 exd4 4. Nxd4 Be7 5. Bc4 Nf6 6. Nc3 O-O 7. O-O Nxe4
8. Nd5 Bf6 9. Re1 Nc5 10. Re3 c6 11. Nxf6+ Qxf6 12. b4 d5 13. Bxd5 cxd5 14.
bxc5 Na6 15. Ba3 Rd8 16. c6
*
[/pgn]

you outplayed him in the opening; why not simply continue 12...Ne6?

after 14...Nc6 black is also slightly better.

I remember I feared Bb2 and Rg3. I think problem is that Black is weak on the dark squares. Have to find something earlier in this line that black squared bishop is not exchanged by a knight. Stockfish gives 8 .. Bh4.

[I also remember I almost wanted to play 12 .. Be6?]

[Lyudmil Tsvetkov]

In this position I played Na6?? and after Ba3 I lost the game.


Maybe because I thought half an hour about move 12.

If I think longer than 15 minutes I might as well resign.

[d] rnb2rk1/pp3ppp/5q2/2Pp4/3N4/4R3/P1P2PPP/R1BQ2K1 b - - 0 14


[pgn]
[Event "?"]
[Site "?"]
[Date "?"]
[Round "-"]
[White "?"]
[Black "?"]
[Result "*"]

1. e4 d6 2. d4 e5 3. Nf3 exd4 4. Nxd4 Be7 5. Bc4 Nf6 6. Nc3 O-O 7. O-O Nxe4
8. Nd5 Bf6 9. Re1 Nc5 10. Re3 c6 11. Nxf6+ Qxf6 12. b4 d5 13. Bxd5 cxd5 14.
bxc5 Na6 15. Ba3 Rd8 16. c6
*
[/pgn]

you outplayed him in the opening; why not simply continue 12...Ne6?

after 14...Nc6 black is also slightly better.

I remember I feared Bb2 and Rg3. I think problem is that Black is weak on the dark squares. Have to find something earlier in this line that black squared bishop is not exchanged by a knight. Stockfish gives 8 .. Bh4.

[I also remember I almost wanted to play 12 .. Be6?]

12...Ne6 is seemingly a perfect draw after Bb2 Nd4 Bd4 Qh4:

[d]rnb2rk1/pp3ppp/2pp4/8/1PBB3q/4R3/P1P2PPP/R2Q2K1 w - - 0 4

no matter what scores SF or other engines would show, white can not win that, too few assets.

12...Be6 is seemingly also not very bad, though might be losing.

[Dann Corbit]

computer analysis for the game:

Code: Select all

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 Fundamental opening position; 
rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - acd 48; acs 212911; bm e6; c0 "d5"; c3 "d6"; 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 *; 
rnbqkbnr/ppp1pppp/3p4/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - acd 35; acs 3601; bm d4; c3 "d4"; cce 61; ce 54; pm d4 {67446} Nc3 {2035} Nf3 {765} f4 {739} g3 {275} c4 {207} Bc4 {162} d3 {78} Bb5+ {33} a4 {26} c3 {19} b3 {15} Ne2 {6} Qf3 {4} f3 {4} Be2 {3} Nh3 {2} h4 {2}; pv d4 Nf6 Nc3 e6 Nf3 c6 Bc4 Be7 O-O Nbd7 a4 O-O Re1; white_wins 28264; black_wins 18856; draws 21904; Opening ECO:B07a; Pirc; 1.e4 d6 *; 
rnbqkbnr/ppp1pppp/3p4/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - acd 35; acs 3601; bm Nf6; c3 "e5"; cce -63; ce -45; pm Nf6 {67048} g6 {14936} e5 {647} c6 {599} Nd7 {540} f5 {389} Nc6 {201} e6 {173} c5 {160} a6 {49} d5 {23} a5 {21} h6 {18} Qd7 {15} b6 {7} Bd7 {6} Bg4 {6} f6 {3} g5 {3} Na6 {2} Be6 {1} Kd7 {1} b5 {1} h5 {1}; pv Nf6 Nc3 e5 dxe5 dxe5 Qxd8+ Kxd8 Bg5 Bd6 O-O-O Nd7 Nf3 Ke7 h3 Rd8 Be2 Nb6 Bh4 Bd7 b3 h6 Bd3 Be6 Kb2 Nd7 a3 a6 Rhe1 c6; white_wins 33708; black_wins 22113; draws 26018; Opening ECO:B07d; Pirc: 2.d4; 1.e4 d6 2.d4 *; 
rnbqkbnr/ppp2ppp/3p4/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - acd 36; acs 3376; bm dxe5; c3 "Nf3"; cce 98; ce 46; pm Nf3 {363} dxe5 {248} Nc3 {32} Ne2 {20} c3 {11} d5 {7} Bc4 {6} f3 {2} Be3 {1} f4 {1}; pv dxe5 Qe7 exd6 Qxe4+ Be2 Bxd6 Nf3 Qg6 O-O Nc6 Bd3 Qh5 Nbd2 Nge7 Ne4 Bg4 Nxd6+ cxd6 Re1 Bxf3 Qxf3 Qxf3 gxf3 O-O-O Be3 Ne5 Be2 N5c6 f4 Kc7 Rad1 Nf5 Bc4 f6 c3 Rde8 Kg2 g5 Bd2 gxf4 Rxe8 f3+ Kxf3 Rxe8 Bf4 Ne5+ Bxe5 dxe5; white_wins 306; black_wins 157; draws 213; Opening King Pawn Game: Maroczy Defense. 1.e4 d6 2.d4 e5; CaxtonID: 981; ECO: B07; 
rnbqkbnr/ppp2ppp/3p4/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - acd 40; acs 4740; bm exd4; c3 "exd4"; cce -73; ce -31; pm exd4 {4181} Nf6 {1388} Nd7 {776} f5 {233} Nc6 {151} Qe7 {99} Bg4 {86} Be6 {2} f6 {2} Be7 {1}; pv exd4; white_wins 2854; black_wins 1738; draws 2220; Opening Philidor Defense: General. 1.e4 e5 2.Nf3 d6 3.d4; CaxtonID: 1489; ECO: C41; 
rnbqkbnr/ppp2ppp/3p4/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq - acd 40; acs 3198; bm Nxd4; c3 "Nxd4"; cce 47; ce 35; id "C.A.P. 445671"; pm Nxd4 {3361} Qxd4 {816} Bc4 {25} c3 {5}; pv Nxd4 Nf6; white_wins 1598; black_wins 1156; draws 1386; Opening Philidor Defense: Exchange Variation. 1.e4 e5 2.Nf3 d6 3.d4 exd4; CaxtonID: 1488; ECO: C41; 
rnbqkbnr/ppp2ppp/3p4/8/3NP3/8/PPP2PPP/RNBQKB1R b KQkq - acd 40; acs 3198; bm Be7; c3 "Be7"; cce -50; ce -35; id "C.A.P. 445670"; pm Nf6 {2645} g6 {597} Nc6 {28} Nd7 {26} c5 {24} Be7 {18} d5 {16} Bd7 {4} a6 {4} b6 {1} c6 {1}; pv Be7 Nc3; white_wins 1287; black_wins 914; draws 1120; Opening Philidor Defense: Exchange Variation. 1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Nxd4; CaxtonID: 1487; ECO: C41; 
rnbqk1nr/ppp1bppp/3p4/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - acd 32; acs 828; bm Nc3; c3 "Bc4"; cce 25; ce 36; pm Nc3 {9} Bc4 {2} Bd3 {2} Bb5+ {1} Be2 {1} Bf4 {1} Bg5 {1} c4 {1}; pv Nc3 Nf6 Bf4 O-O Qd2 Nc6 O-O-O Nxd4 Qxd4 Be6 Be2 Re8 h4 Nd7 h5 Bf6 Qd2 h6 Kb1 Qe7 f3 Rad8 g4 Nb6 Bg3 Bc4 Rhe1 Bxe2 Rxe2 Nc4 Qd5 Qe6 Qxe6 fxe6; white_wins 9; black_wins 8; draws 1; 
rnbqk1nr/ppp1bppp/3p4/8/2BNP3/8/PPP2PPP/RNBQK2R b KQkq - acd 31; acs 31; bm Nf6; c3 "Nf6"; cce -14; ce -12; pm Nf6; pv Nf6 Nc3 O-O Bf4 Nbd7 Qe2 Nb6 Bb3 Nfd7 O-O Nc5 Rad1 Re8 Bg3 Bd7 Rfe1 Bf6 a3 Qe7 h3 Nxb3 cxb3 Bxd4 Rxd4 f5 Qd2 Qf7 b4 fxe4 Rdxe4 Bc6 R4e2 Rxe2 Rxe2 Re8; white_wins 68; black_wins 62; draws 67; 
rnbqk2r/ppp1bppp/3p1n2/8/2BNP3/8/PPP2PPP/RNBQK2R w KQkq - acd 31; acs 211; bm Nc3; c3 "Nc3"; cce 11; ce 20; pm Nc3; pv Nc3 O-O Bf4 Nbd7 O-O Nb6 Be2 c6 Bg3 d5 e5 Nfd7 f4 Nc5 f5 Bg5 Kh1 Be3 Rf3 Bg5 Bd3 Nxd3 cxd3 Re8 a4 a5 Kg1 Bd7 h3 h6 Nc2 h5 d4; white_wins 67; black_wins 62; draws 66; 
rnbqk2r/ppp1bppp/3p1n2/8/2BNP3/2N5/PPP2PPP/R1BQK2R b KQkq - acd 34; acs 784; bm O-O; c3 "O-O"; cce -5; ce -17; pm O-O {542} Nbd7 {21} Nc6 {17} c6 {9} Bd7 {2} a6 {1}; pv O-O; white_wins 193; black_wins 187; draws 211; Opening ECO:C41l; Philidor: 3...exd4 4.Nxd4 Nf6 5.Nc3 Be7 6.Bc4; 1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Nxd4 Nf6 5.Nc3 Be7 6.Bc4 *; 
rnbq1rk1/ppp1bppp/3p1n2/8/2BNP3/2N5/PPP2PPP/R1BQK2R w KQ - acd 31; acs 344; bm Bf4; c3 "O-O"; cce 5; ce 21; pm Bf4; pv Bf4 Nbd7 Qe2 Nb6 Bb3 Nfd7 O-O Nc5 Rad1 Re8 Bg3 Bd7 Rfe1 Nxb3 cxb3 a5 a3 h6 f3 Bf6 h3 a4 b4 Bh4 Bxh4 Qxh4 Ncb5 Bxb5 Nxb5 Qd8 Nc3; white_wins 178; black_wins 172; draws 191; 
rnbq1rk1/ppp1bppp/3p1n2/8/2BNP3/2N5/PPP2PPP/R1BQ1RK1 b - - acd 31; acs 287; bm c6; c3 "Nxe4"; cce -17; ce -23; pm c6 {136} a6 {83} Nc6 {77} Nxe4 {71} Re8 {35} Nbd7 {24} c5 {18} Bd7 {1}; pv c6 Bf4 b5 Bb3 a6 a3 c5 Nf3 c4 Ba2 Nc6 Re1 Bb7 Qd2 Re8 Rad1 Ne5 Nd4 g6 h3 Rc8 Bh6 Qb6 Bg5 Ned7 Bb1 Qc5 Qe3 Nh5 Bxe7 Rxe7; white_wins 154; black_wins 137; draws 154; 
rnbq1rk1/ppp1bppp/3p4/8/2BNn3/2N5/PPP2PPP/R1BQ1RK1 w - - acd 31; acs 91; bm Nxe4; c3 "Nd5"; cce 63; ce 28; pm Nxe4; pv Nxe4 d5 Bd3 dxe4 Bxe4 Re8 c3 Nd7 Bc2 Nf6 h3 c5 Nf5 Bxf5 Bxf5 Qxd1 Rxd1 Rad8 Bf4 Nd5 Bg3 Bf6 Bg4 b5 Bf3 Nb6 Bc6 Rxd1+ Rxd1 Re2 b4 cxb4 cxb4 a6 Bb7 Rxa2 Rd6 Na4 Bxa6 Nc3 Rb6; white_wins 26; black_wins 16; draws 29; 
rnbq1rk1/ppp1bppp/3p4/3N4/2BNn3/8/PPP2PPP/R1BQ1RK1 b - - acd 31; acs 266; bm c6; c3 "Bf6"; ce 8; pm c6; pv c6 Nxe7+ Qxe7 Re1 d5 Bd3 Qf6 Be3 Nc5 Bf1 Nbd7 Qh5 Ne6 c3 h6 Rad1 Nf4 Qf3 Ng6 h3 Qxf3 Nxf3 Nf6 Bd3 Bd7 a4 a5 Bc2 Rfe8 Bb6 Nf4 Rxe8+ Rxe8 Re1 Rxe1+ Nxe1 Ne6 Bxa5 c5;
rnbq1rk1/ppp2ppp/3p1b2/3N4/2BNn3/8/PPP2PPP/R1BQ1RK1 w - - acd 31; acs 187; bm Nb5; c3 "Re1"; ce 29; pm Nb5; pv Nb5 Na6 Qf3 Nec5 Nxf6+ Qxf6 Qxf6 gxf6 Bh6 Rd8 Rfe1 d5 Bf1 Bf5 Nd4 Bg6 Re3 c6 Rf3 Re8 Rxf6 Ne4 Rf3 Nac5 Re1 Ne6 c3 Nxd4 cxd4 Nd6 Re5 Nc4 Bxc4 Rxe5 dxe5 dxc4;
rnbq1rk1/ppp2ppp/3p1b2/3N4/2BNn3/8/PPP2PPP/R1BQR1K1 b - - acd 31; acs 96; bm Nc5; c3 "Nc5"; ce 6; pm Nc5; pv Nc5 c3 Nbd7 Nb5 Na6 a4 Ne5 Be2 Be6 Nxf6+ Qxf6 b4 Rfe8 Be3 Bc4 f4 Bxe2 fxe5 Bxd1 exf6 Bc2 fxg7 Kxg7 Bd4+ Kf8 Be3 Kg8 Nd4 Bg6 Nb5 d5 Bf2 Rxe1+ Rxe1 Bc2 Re7 Bxa4 Nxc7 Nxc7 Rxc7 b6 Bd4 Kf8;
rnbq1rk1/ppp2ppp/3p1b2/2nN4/2BN4/8/PPP2PPP/R1BQR1K1 w - - acd 31; acs 154; bm c3; c3 "Re3"; ce 0; pm c3; pv c3 Nc6 Nb5 Na6 Qf3 Be5 Qh5 g6 Qg5 Qxg5 Bxg5 Be6 f4 Bg7 Rxe6 fxe6 Ndxc7 Nxc7 Nxc7 d5 Nxa8 dxc4 Nc7 h6 Nxe6 hxg5 Nxf8 Kxf8 fxg5 Ne5 Rf1+ Ke7 Re1 Kd6 Re2 b5 a3 Nd3 g3 Be5 Kg2 Kd5 Kf3 Bd6 Kg4 Ne5+ Kf4 a6 h4 Nd3+ Kg4 Ne5+ Kf4;
rnbq1rk1/ppp2ppp/3p1b2/2nN4/2BN4/4R3/PPP2PPP/R1BQ2K1 b - - acd 36; acs 582; bm Be5; c3 "c6"; ce 42; pm Be5; pv Be5 f4 Bxd4 Qxd4 Ne6 Qc3 c6 Rg3 cxd5 Bxd5 Qe7 Bd2 Nd7 f5 Ne5 Re1 g6 fxe6 Bxe6 Qd4 Bxd5 Qxd5 Rfe8 Bb4 Qd8 Rge3 Qb6 Ba5 Qa6 Bb4 Rad8 c4 Qxa2 Bc3 Qa6 c5 Qc6 Qxc6 bxc6 Ba5 Rd7 cxd6 f6 Bc7 Kg7 Ra1;
rnbq1rk1/pp3ppp/2pp1b2/2nN4/2BN4/4R3/PPP2PPP/R1BQ2K1 w - - acd 47; acs 7440; bm Nxf6+; c3 "Nxf6+"; ce 81; pm Nxf6+; pv Nxf6+;
rnbq1rk1/pp3ppp/2pp1N2/2n5/2BN4/4R3/PPP2PPP/R1BQ2K1 b - - acd 48; acs 7440; bm Qxf6; c3 "Qxf6"; ce -80; pm Qxf6; pv Qxf6 b4;
rnb2rk1/pp3ppp/2pp1q2/2n5/2BN4/4R3/PPP2PPP/R1BQ2K1 w - - acd 47; acs 7440; bm b4; c3 "b4"; ce 70; pm b4; pv b4 Ne6;
rnb2rk1/pp3ppp/2pp1q2/2n5/1PBN4/4R3/P1P2PPP/R1BQ2K1 b - - acd 31; acs 169; bm Ne6; c3 "d5"; ce -81; pm Ne6; pv Ne6 Bb2 Nxd4 Bxd4 Qh4 Rg3 g6 Qd2 Bf5 Re1 Nd7 Bb3 Rae8 Rge3 Ne5 h3 a6 Bc3 Nc4 Bxc4 Rxe3 Rxe3 Qxc4 Re7 h6 Bf6 g5 Qxd6 Qd5 Qxd5 cxd5 Rxb7 Re8 c3 Bb1 Bd4 Bxa2 Rb6 Re1+ Kh2 Bc4 Rxh6;
rnb2rk1/pp3ppp/2p2q2/2np4/1PBN4/4R3/P1P2PPP/R1BQ2K1 w - - acd 36; acs 277; bm bxc5; c3 "Bxd5"; ce 108; pm bxc5; pv bxc5 dxc4 Rg3 g6 Bg5 Qh8 Re3 Na6 Bh6 Bd7 Bxf8 Rxf8 Nf3 Nxc5 Rb1 Bc8 Qd6 Ne6 Qb4 Qf6 Qxc4 Nf4 Re4 Nh3+ Kf1 Ng5 Nxg5 Qxg5 Qc3 Qd5 Ree1 b6 Rbd1 Qxa2 Rd6 Bf5 Rxc6 Qd5 Kg1 Bd7 Rc4 a5 Rd4 Qc6 Qd2 Bf5 c4 Re8 Rxe8+ Qxe8;
rnb2rk1/pp3ppp/2p2q2/2nB4/1P1N4/4R3/P1P2PPP/R1BQ2K1 b - - acd 31; acs 61; bm cxd5; c3 "cxd5"; ce -42; pm cxd5; pv cxd5 bxc5 Nc6 Bb2 Nxd4 Bxd4 Qc6 Qh5 Bd7 Re7 f6 Rae1 Rae8 h3 Rxe7 Rxe7 Kh8 c3 Kg8 g4 Be8 Qg5 Bf7 Qf4 Re8 Rc7 Qb5 Kh2 Re1 Qd6 Qf1 Rc8+ Be8 Rxe8+ Rxe8 Qxd5+ Kh8 Qxb7 Qc1;
rnb2rk1/pp3ppp/5q2/2np4/1P1N4/4R3/P1P2PPP/R1BQ2K1 w - - acd 31; acs 3; bm bxc5; c3 "bxc5"; ce 39; pm bxc5; pv bxc5 Nc6 Bb2 Nxd4 Bxd4 Qc6 Qh5 f6 Rae1 Bd7 Re7 Be8 Qg4 Rf7 Qg3 Bd7 h3 b6 Qa3 Qa4 Qd3 Rxe7 Rxe7 Re8 Bxf6 Rxe7 Bxe7 Qe4 Qxe4 dxe4 Kh2 Kf7 Bd6 Bc6 Kg3;
rnb2rk1/pp3ppp/5q2/2Pp4/3N4/4R3/P1P2PPP/R1BQ2K1 b - - acd 36; acs 338; bm Nc6; c3 "Na6"; ce -36; pm Nc6; pv Nc6 Bb2 Nxd4 Bxd4 Qc6 Qh5 f6 Rae1 Bd7 Re7 Be8 Qg5 Bg6 Qg3 Rfe8 h4 Kf8 Qd6 Qxd6 cxd6 b6 c3 Rad8 R1e6 Bf7 Re3 Rxd6 Rxa7 Rc6 Rb7 Rxe3 fxe3 Bg6 Kf2 Bd3 Rxb6 Rxb6 Bxb6 Bb5 g4 Kf7 h5 Bc6 Bd4 h6 Bc5;
r1b2rk1/pp3ppp/n4q2/2Pp4/3N4/4R3/P1P2PPP/R1BQ2K1 w - - acd 47; acs 7440; bm Ba3; c3 "Ba3"; ce 176; pm Ba3; pv Ba3 Bd7 c6 bxc6 Be7 Qh6 Bxf8 Rxf8 Nb3 Qd6 c4 Nc7 cxd5 Nxd5 Qd4 Rb8 Nc5 Bf5 Rae1 h6 Re8+ Kh7 Rxb8 Qxb8 g4 Bg6 Nd7 Qd6 Ne5 Qf6 Qxa7 Qf4 Qa3 Qd2 Qc1 Qxa2 Qxc6 Qd2 Qc1 Qb4 Kh1 Nf4 f3 Nd5 Re2 Qb5 Qd2 f6 Nxg6 Kxg6 Qc2+ Kf7;
r1b2rk1/pp3ppp/n4q2/2Pp4/3N4/B3R3/P1P2PPP/R2Q2K1 b - - acd 43; acs 7440; bm Nc7; c3 "Rd8"; ce -156; pm Nc7; pv Nc7 Bb2 Qd8 c6 Ne6 Nf5 d4 Rg3 bxc6 Ba3 Qf6 Rf3 Qd8 Ne7+ Kh8 Qd3 h6 Nxc6 Qc7 Bxf8 Qxc6 Rxf7 Bb7 Qf3 Qxf3 gxf3 Bd5 Rf5 Rd8 Be7 Rd7 Re1 Bxa2 Ra5 Bc4 Bb4 g5 Rae5 Nf4 Re8+ Kg7 R8e7+ Rxe7 Rxe7+ Kf6 Rxa7 d3 cxd3 Nxd3 Ba5 Be6 Bc3+ Kg6 Kg2;
r1br2k1/pp3ppp/n4q2/2Pp4/3N4/B3R3/P1P2PPP/R2Q2K1 w - - acd 46; acs 7440; bm c6; c3 "c6"; ce 473; pm c6; pv c6;

I think the biggest lost opportunity for a clear advantage seems to be :
[d]rnbq1rk1/ppp2ppp/3p1b2/2nN4/2BN4/4R3/PPP2PPP/R1BQ2K1 b - - acd 36; acs 582; bm Be5; c3 "c6"; ce 42; pm Be5; pv Be5 f4 Bxd4 Qxd4 Ne6 Qc3 c6 Rg3 cxd5 Bxd5 Qe7 Bd2 Nd7 f5 Ne5 Re1 g6 fxe6 Bxe6 Qd4 Bxd5 Qxd5 Rfe8 Bb4 Qd8 Rge3 Qb6 Ba5 Qa6 Bb4 Rad8 c4 Qxa2 Bc3 Qa6 c5 Qc6 Qxc6 bxc6 Ba5 Rd7 cxd6 f6 Bc7 Kg7 Ra1;