Viewer Submitted Openings Bonus 9 pgn

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"] 
[Date "?"] 
[Round "?"] 
[White "?"] 
[Black "?"] 
[Result "*"] 
[ECO "B00"]
[Opening "Nimzowitsch Defence"]
[Variation "Colorado Counter"]
[PlyCount "13"]

{Lolligerhans: White deviates on move 7 in order to prevent fast Bg7. IIRC, SF didnt mind this but Leela says this shifts the advantage to the black player}
1. e4 Nc6 2. Nf3 f5 3. exf5 d5 4. d4 Bxf5 5. Bb5 e6 6. Ne5 Ne7 7. Qe2 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "?"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A00"]
[Opening "Mieses opening"]
[Variation "Delayed Dutch"]
[PlyCount "3"]

{Lolligerhans:  Let's give the dutch an extra tempo!}
1. d3 f5 2. d4 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "?"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A00"]
[Opening "Mieses opening"]
[Variation "Delayed Dutch"]
[PlyCount "7"]

{Lolligerhans:  Let's give the dutch as many tempos as needed!}
1. d3 f5 2. d4 Nf6 3. c3 g6 4. c4 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "?"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D47"]
[Opening "Semi-Slav Defense"]
[Variation "Meran Variation, Wade Variation "]
[PlyCount "16"]

{atanh: Derived from ChessDB.cn top moves after 1. d4, circa 2019-12-04. According to Lichess and other sites, top continuations seem to be 9. O-O, and 9. e4, with 9. a3 underwhelmingly coming in third. However, while exploring CDBCN, it seems that 9. a3 might hold more promise than it first seems. Will be interesting to see what the latest engines think. }
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"] 
[Date "?"] 
[Round "?"] 
[White "?"] 
[Black "?"] 
[Result "*"] 
[ECO "C41"] 
[Opening "Philidor"]
[Variation "Hanham"] 
[PlyCount "14"]

{Ove: Solid line}
1. e4 e5 2.Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. O-O O-O 7. a4 c6 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"] 
[Date "?"] 
[Round "?"] 
[White "?"] 
[Black "?"] 
[Result "*"] 
[ECO "C63"] 
[Opening "Spanish"]
[Variation "Jänisch"] 
[PlyCount "7"]

{Ove: A sound line}
1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d3 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "?"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C18"]
[Opening "French"]
[Variation "Winaver"]
[PlyCount "14"]

{BFPlayer1: 7...Kf8 is somewhat clumsy. Why not castle directly instead?}
1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Qg4 Kf8 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "2005.08.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C64"]
[PlyCount "14"]
[EventDate "2005.??.??"]

{Occyroexanthub: I like this bold variation of Ruy Lopez} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Re1 Nd6 7. Ba4 exd4 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "2005.08.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A45"]
[PlyCount "17"]
[EventDate "2005.??.??"]

{Occyroexanthub: Stupid engines can't really play with black good here so let's see.} 1. d4 Nf6 2. Bg5 c5 3. d5 Qb6 4. Nc3 Qxb2 5. Bd2 Qb6 6. e4 e5 7. f4 d6 8. Nf3
Nbd7 9. a4 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "2005.08.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E90"]
[PlyCount "31"]
[EventDate "2005.??.??"]

{Occyroexanthub: Black has to play with a Rook down but with strong compensation. White should not really try to keep the Knight.} 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be3 c6 7. Be2 Qc7 8. O-O e5 9. d5 c5 10. Nd2 h6 11. b4 cxb4 12. Nb5 Qe7 13. c5 dxc5 14. d6 Qd8 15. Nc7 Qxd6 16. Nxa8 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "2005.08.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B12"]
[PlyCount "16"]
[EventDate "2005.??.??"]

{Occyroexanthub: A nice Caro Kann SALC variation with good prospects for attacks on both sides.} 1. d4 c6 2. e4 d5 3. e5 Bf5 4. Nf3 e6 5. c3 h6 6. Be2 Ne7 7. O-O Nd7 8. Nbd2 Qc7 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "2005.08.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A00"]
[PlyCount "28"]
[EventDate "2005.??.??"]

{Occyroexanthub: A 6 Knights variant.} 1. h4 a5 2. h5 a4 3. h6 a3 4. hxg7 axb2 5. Na3 Nh6 6. g8=N b1=N 7. Nb5 Nc3 8.
Na3 Nd5 9. Nb1 Ng4 10. Nh6 Ngf6 11. Nf5 Ng8 12. Ne3 Ndf6 13. Nc4 Nh5 14. Nb2 Ng7 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "2005.08.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D21"]
[PlyCount "20"]
[EventDate "2005.??.??"]

{Occyroexanthub: If engine chooses Nxa1 it leads to a forced small line with unclear result. If it chooses e6 it would be even more interesting.} 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. Nc3 b5 5. a4 b4 6. Na2 Nc6 7. e3 b3 8. Nc3 Nb4 9. Bxc4 Nc2+ 10. Kf1 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "2005.08.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A43"]
[PlyCount "13"]
[EventDate "2005.??.??"]

{Occyroexanthub: Bold line where black has to play very carefully.} 1. d4 Nf6 2. Nf3 c5 3. d5 b5 4. Bg5 g6 5. d6 exd6 6. Nc3 h6 7. Bf4 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "2005.08.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[PlyCount "21"]
[EventDate "2005.??.??"]

{Occyroexanthub: Complicated play for both sides.} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 b5 6. a4 c6 7. O-O Bb7 8. Ne5 a6
9. b3 cxb3 10. Bb2 Nfd7 11. Nd3 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "2005.08.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E20"]
[PlyCount "18"]
[EventDate "2005.??.??"]

{Occyroexanthub: White has too many options of how to play. A bit critical is if he plays d5 now or not.} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bf4 c5 5. e3 O-O 6. Bd6 Ne4 7. Bxf8 Nxc3 8. Qc2 Nxa2+ 9. Kd1 Qxf8 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "2005.08.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[PlyCount "24"]
[EventDate "2005.??.??"]

{Occyroexanthub: Black has the advantage so let's see if he can use it.} 1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. Nc3 O-O 5. Bf4 d5 6. Rc1 Be6 7. Ng5 c5 8. dxc5
d4 9. Nb5 Nc6 10. Nc7 Bf5 11. Nxa8 e5 12. Bd2 Qe7 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"] 
[Date "?"] 
[Round "?"] 
[White "?"] 
[Black "?"] 
[Result "*"] 
[ECO "B96"] 
[Opening "Sicilian"]
[Variation "Najdorf, Göteborg/Argentine"] 
[PlyCount "16"]

{Ove: Famous from the 1955 Goteborg Interzonal. Still playable?}
1. e4 c5 2. d4 cxd4 3. Nf3 d6 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4 g5 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"] 
[Date "?"] 
[Round "?"] 
[White "?"] 
[Black "?"] 
[Result "*"] 
[ECO "C93"] 
[Opening "Spanish"]
[Variation "Zaitsev"] 
[PlyCount "23"]

{Ove: Main line Zaitsev. Also the main line for 1.e4 at https://www.chessdb.cn/queryc_en/ All pieces left on the board and still many options available for both sides}
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Bb7 10. d4 Re8 11. Nbd2 Bf8 12. Bc2 *

[Event "Viewer Submitted Openings Bonus 9"]
[ECO "C35"]
[Opening "KGA"]
[Variation "Cunningham, Euwe Defence"]
[PlyCount "8"]

{r0bbi3 Low draw-rate and close to equal chances according to CCRL (+37%=21%-41%)}
1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Nf6 *

[Event "Viewer Submitted Openings Bonus 9"]
[ECO "A04"]
[Opening "Reti Opening"]
[Variation "Lisitsin Gambit"]
[PlyCount "3"]

{r0bbi3 Low draw-rate and close to equal chances according to CCRL (+32%=29%-37%)}
1. Nf3 f5 2. e4 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"] 
[Date "?"] 
[Round "?"] 
[White "?"] 
[Black "?"] 
[Result "*"] 
[ECO "D00"] 
[Opening "Blackmar–Diemer Gambit"]
[PlyCount "3"]

{Xelor41023:  }
1. d4 d5 2. e4 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"] 
[Date "?"] 
[Round "?"] 
[White "?"] 
[Black "?"] 
[Result "*"] 
[Opening "Accelerated Bongcloud"]
[PlyCount "7"]

{This opening used to be Winters PV at depth 7, where it preferred the more centralized white king. It was already superhuman at this point. }
1. d4 e6 2. Kd2 Ke7 3. Kd3 Kd6 4. Ke4 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"] 
[Date "?"] 
[Round "?"] 
[White "?"] 
[Black "?"] 
[Result "*"] 
[ECO "E87"] 
[Opening "King's Indian"]
[Variation "Sämisch"] 
[PlyCount "16"]

{Ove: Played in Karpov-Kasparov, World championship 1990. Bronstein's queen sac is a possibility, and https://www.chessdb.cn/queryc_en/ ranks it #2}
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Nh5 8.Qd2 Qh4+ *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "?"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C57"]
[Opening "Two knights defence"]
[Variation "Fegatello attack"]
[PlyCount "17"]

{I stumbled on this opening a couple of times as a junior and it is still rich in possibilities and reasonably well balanced despite the material imbalance}
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7 Kxf7 7. Qf3+ Ke6 8. Nc3 Nb4 9. O-O *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A00"]
[Opening "Van't Kruijs opening"]
[Variation "Drawkiller"]
[PlyCount "20"]

{Nordlandia: The Drawkiller Opening is living up to it's name. Kings on oppsite sides forces attacking play for both sides. first come, first served}
1. e3 d6 2. Nh3 Nc6 3. Bd3 Be6 4. O-O Qd7 5. Kh1 O-O-O 6. Re1 Kb8 7. Bf1 Ka8 8.
Ng1 Qe8 9. Nf3 Bc8 10. Ng1 Nb8 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B96"]
[Opening "Sicilian Najdorf"]
[Variation "Polugaevsky variation"]
[PlyCount "41"]

{Nordlandia: White is up the exchange; Black is compensated by two active bishops. Tarrasch and other classisists of the late 19th to early 20th century claimed that two bishops were equivalent against rook and knight.}
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 b5 8. e5
dxe5 9. fxe5 Qc7 10. Qe2 Nfd7 11. O-O-O Bb7 12. Qg4 Qxe5 13. Be2 h5 14. Qh4 f6
15. Bf4 g5 16. Qxh5+ Rxh5 17. Bxh5+ Ke7 18. Bxe5 Nxe5 19. Bf3 Nxf3 20. Nxf3 g4
21. Ne1 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C30"]
[Opening "King's Gambit"]
[Variation "Classical Defense"]
[PlyCount "38"]

{Nordlandia: An unbalanced position has arisen straight out of the opening, in which, with an open center, Black has a pawn and the bishop pair for the exchange. Is it enough compensation ?}
1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. c3 Nf6 5. fxe5 dxe5 6. Nxe5 O-O 7. d4 Bb6 8.
Bg5 Qe8 9. Qf3 Nbd7 10. Nxd7 Nxe4 11. Nxf8 Nxg5+ 12. Qe2 Bg4 13. Qe5 Qxe5+ 14.
dxe5 Re8 15. Bd3 Rxe5+ 16. Kd2 Ne4+ 17. Bxe4 Rxe4 18. Re1 Rxe1 19. Kxe1 Kxf8 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A01"]
[Opening "Larsen's Opening"]
[PlyCount "39"]

{Nordlandia: Opposite-colored bishops and White's knight anchored in the center yield compensation for loss of the exchange. Black's bishop cannot dislodge the white knight from its centralized outpost. Opposite-colored bishops sometimes give the defender drawing chances in the long run, even if the opponent has a material advantage of one or two pawns or even the exchange.}
1. b3 d5 2. Bb2 e5 3. Nf3 e4 4. Nd4 c5 5. e3 Nc6 6. Nc3 Qd7 7. Nxc6 Qxc6 8. Na4
Be7 9. Nxc5 Bf6 10. Bxf6 Ne7 11. Bxe7 Qd7 12. Bf6 Qd8 13. Bb2 Qd7 14. Ne6 Qc6
15. Nd4 Qxc2 16. Bc4 Qxc4 17. Rc1 Qxc1 18. O-O Qc7 19. Qe2 Qd8 20. Qd1 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "2005.08.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C64"]
[PlyCount "14"]
[EventDate "2005.??.??"]

{Occyroexanthub: I like this too with nice material imbalance.}
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Bc4 Nb6 5. Bb3 dxe5 6. Qh5 e6 7. dxe5 c5 8. Qe2
Nc6 9. Nf3 Be7 10. O-O g5 11. Rd1 Bd7 12. Bxe6 fxe6 13. Nxg5 O-O 14. Nxe6 Bxe6
15. Rxd8 Raxd8 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B27"]
[Opening "Sicilian"]
[Variation "Hungarian variation"]
[PlyCount "39"]

{Nordlandia: Extremely rare material constellation on the board. Two same-colored bishops can protect each other. And unlike two knights, they can keep protecting each other indefinitely, even if one has to move. But that doesn't overcome their drawbacks. There is some draw tendencies, because of the chain-link effect.}
1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. c4 Bg7 6. Nc2 Qb6 7. Nc3 Bxc3+ 8.
bxc3 Nf6 9. f3 Qa5 10. Be2 h5 11. O-O h4 12. Be3 Qxc3 13. Rb1 h3 14. Rb5 hxg2
15. Bd2 Qxc2 16. Qxc2 Nd4 17. Qd3 gxf1=B 18. Qxd4 Bxe2 *

[Event "Viewer Submitted Openings Bonus 9"]
[Site "?"]
[Date "2020.03.14"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A60"]
[Opening "Benoni"]
[PlyCount "14"]

{Lolligerhans: Oh no! A mouse slip by white on move 6 granted black an extra tempo for his benoni.}
1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e3 a6 7. e4 b5 *