I used to play Open Sicilian with white and I sometimes plays either Accelerated Dragon or Taimanov Sicilian with black. I often play Reversed Sicilian with black since the extra tempo is irrelevent if black follows up correctly. I have played Open Sicilian most of my carrier so I know how to handle these kind of positions. Also club players rarely knows theory on Open Sicilian systems not common at elite level like Be2 or g3 systems or other more positional mainlines.
In my experience with the black pieces the Open Sicilian is very rare at club level since anti sicilians like Closed Sicilian, c3 Sicilian , Grand Prix, Morra Gambit, KIA, Bb5(+) etc etc are more common to meet.
After I started to play Correspondence Chess I learned the hard way is not worth all the workload to end up in an equal positions, even in ambitios book lines. Therefore since 2020 I play my own mix of open sicilians and anit sicilians depending on blacks move after 1 e4 c5 2 Nf3 where I sometimes play Open Sicilian like lines or sometimes reach Open Sicilian mainlines by transposing.
Particularly Najdorf and Svechnikov but also Dragon are popular openings at ICCF and I met both openings in many rated games, including in several team matches for Team Sweden. ICCF starts Najdorf 6 Be3 events at regular basic. Thematical tournaments are by the way not rated. I will however not post any Correspondence Chess games at my site.
I qualified to play in 2 different Najdorf final events by winning 2 different events. However, I have also won 1 event that did not lead to a final event, since many events does not have finals even if it is the same opening as events with a final.
After 1 e4 c5 2 Nf3 d6 3 d4 cxd4 white has two respected options that are a grey area of being an open sicilian or not where white white aims for a Marocy Bind setup. I have played the Chekhover variation, 4 Qxd4, in a few games, where there has been developments where white plays Carlsens 5 Qe3 as a reply to Nc6. But Qe3 is better after that a6 or Bd7 are inserted or after that Nf6 Be2 are inserted than after a direct Nc6 where Bb5 is preferable, meeting Bd7 with Qd3 but it also leads to an equal game. The other respected grey area option is to play 4 Nxd4 and reply Nf6 with 5 f3 called the the Prins variation. I have however never played the Prins variation myself.
The Chekhover variation can also be played in a none Marocy Bind way based on actice piece play instead, leading to a more or less standard Open Sicilian type of positions with equal chanses. I have however never played it in that way yet.
Reversed Dragon is also a very popular opening at ICCF, I met in many rated games, including in several team matches for Team Sweden.
|2016||WSTT/SEA/22 - Sicilian, English Attack, B90||6/8: +5 =2 -1||2nd place .|
|2017||WSTT/SEA/26 - Sicilian, English Attack, B90||7/8: +6 =2 -0||1st place .|
|2018||WSTT/7/17 - Sicilian Dragon, B70-B79||6,5/12: +1 =11 -0||4th in section .|
|2018||WSTT/SEA/29 - Sicilian, English Attack, B90||5,5/8: +4 =3 -1||3rd place .|
|2018||WSTT/SEA/30 - Sicilian, English Attack, B90||5,5/8: +3 =5 -0||1st place .|
|2018||WSTT/SEA/31 - Sicilian, English Attack, B90||5,5/8: +3 =5 -0||1st place .|
|2019||WSTT/SEA/Final 06 - Sicilian, English Attack, B90||5/8: +2 =6 -0||3rd place .|
|2020||WSTT/7/19/2 - Sicilian, Accelerated Dragon, B27||8/10: +6 =4 -0||I have no games left but the tournament is not completed yet .|
|2020||WSTT/SEA/37 - Sicilian, English Attack, B90||4,5/8: +2 =5 -1||I have no games left but the tournament is not completed yet .|
|2020||WSTT/SEA/F07 - Sicilian, English Attack, B90||1,5/6: +0 =3 -3||I have 2 games left in this 8 game tournament .|
|2020||WSTT/7/20 Sicilian Nimzowitsch Brohinka, B29||0/0: +0 =0 -0||Starts 2020-12-15. 10 game tournament .|