[Comment "auto-generated from http://www.jesseo.com/chesspublishing/pgn.php?pgndata=%0A[Event%20%26quot;corr.%201990-1991%26quot;]%0A[Site%20%26quot;?%26quot;]%0A[Date%20%26quot;????.??.??%26quot;]%0A[Round%20%26quot;?%26quot;]%0A[White%20%26quot;D-r%20R.Merkell,%20Germany%26quot;]%0A[Black%20%26quot;D-r%20G.Popov,%20Bulgaria%26quot;]%0A[Result%20%26quot;0-1%26quot;]%0A[ECO%20%26quot;C60%26quot;]%0A[Annotator%20%26quot;user%26quot;]%0A[PlyCount%20%26quot;66%26quot;]%0A%0A1.%20e4%20e5%202.%20Nf3%20Nc6%203.%20Bb5%20a5%204.%20a4%20%26%23123;Original%20decision.%26%23125;%20Bc5%20(%26%23123;Black%20had%20to%0Acontinue%20in%20the%20spirit%20of%20Steinitz%20Deferred.%26%23125;%204...%20d6%205.%20c3%20Bd7%206.%20d4%20Nf6%207.%0AO-O%20Be7%208.%20Re1%20O-O%209.%20Nbd2%20exd4%20$1%2010.%20cxd4%20Nb4%20%26%23123;That%20was%20the%20idea%20behind%209...%0Aexd4%20-%20the%20black%20knight%20finds%20a%20good%20square%20now.%26%23125;%2011.%20Bxd7%20(11.%20Bc4%20d5%20$11)%0A11...%20Qxd7%2012.%20Nf1%20c5%20$11)%205.%20c3%20Nf6%206.%20d4%20exd4%207.%20e5%20Ne4%208.%20O-O%20d5%209.%20Nxd4%20$6%0A(%26%23123;White%20had%20to%20play%26%23125;%209.%20exd6%20O-O%2010.%20dxc7%20Qf6%20$44)%209...%20O-O%2010.%20Bxc6%20bxc6%2011.%0ABe3%20Qe8%2012.%20f3%20Nd6%2013.%20Bf2%20Nc4%2014.%20b3%20Nxe5%20$1%2015.%20Re1%20f6%2016.%20f4%20Qf7%20$1%2017.%20Bg3%0A(17.%20fxe5%20$2%20fxe5%2018.%20Nf3%20Bxf2+%2019.%20Kxf2%20e4%20%26%23123;and%20Black%20is%20close%20to%20winning.%26%23125;)%0A17...%20Bg4%2018.%20Qd2%20Rae8%2019.%20h3%20Bxh3%20$1%2020.%20fxe5%20fxe5%2021.%20gxh3%20exd4%20$40%2022.%20Kh2%0ARxe1%2023.%20Qxe1%20Re8%2024.%20Qf2%20Qh5%2025.%20Ra2%20Re3%20$1%20(25...%20dxc3%20$2%2026.%20Qxc5%20Re2+%2027.%0ARxe2%20Qxe2+%2028.%20Bf2%20c2%2029.%20Na3%20%26%23123;is%20about%20equal.%26%23125;)%2026.%20cxd4%20Bxd4%2027.%20Qf1%20Be5%2028.%0ARg2%20Qg5%2029.%20Qf2%20h5%20$1%20%26%23123;Threatening%2030...Rxg3!%26%23125;%2030.%20Bxe5%20Qxe5+%2031.%20Kh1%20Re1+%2032.%0ARg1%20Re2%20(%26%23123;After%26%23125;%2032...%20Qe4+%2033.%20Qg2%20Rxb1%2034.%20Rxb1%20Qxb1+%2035.%20Kh2%20Qxb3%2036.%20Qe2%20$1%0A%26%23123;Black%20is%20winning,%20too.%26%23125;)%2033.%20Qg3%20Qe4+%200-1%0A"]

[Event "corr. 1990-1991"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "D-r R.Merkell, Germany"]
[Black "D-r G.Popov, Bulgaria"]
[Result "0-1"]
[ECO "C60"]
[Annotator "user"]
[PlyCount "66"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a5 4. a4 {Original decision.} Bc5 ({Black had to
continue in the spirit of Steinitz Deferred.} 4... d6 5. c3 Bd7 6. d4 Nf6 7.
O-O Be7 8. Re1 O-O 9. Nbd2 exd4 $1 10. cxd4 Nb4 {That was the idea behind 9...
exd4 - the black knight finds a good square now.} 11. Bxd7 (11. Bc4 d5 $11)
11... Qxd7 12. Nf1 c5 $11) 5. c3 Nf6 6. d4 exd4 7. e5 Ne4 8. O-O d5 9. Nxd4 $6
({White had to play} 9. exd6 O-O 10. dxc7 Qf6 $44) 9... O-O 10. Bxc6 bxc6 11.
Be3 Qe8 12. f3 Nd6 13. Bf2 Nc4 14. b3 Nxe5 $1 15. Re1 f6 16. f4 Qf7 $1 17. Bg3
(17. fxe5 $2 fxe5 18. Nf3 Bxf2+ 19. Kxf2 e4 {and Black is close to winning.})
17... Bg4 18. Qd2 Rae8 19. h3 Bxh3 $1 20. fxe5 fxe5 21. gxh3 exd4 $40 22. Kh2
Rxe1 23. Qxe1 Re8 24. Qf2 Qh5 25. Ra2 Re3 $1 (25... dxc3 $2 26. Qxc5 Re2+ 27.
Rxe2 Qxe2+ 28. Bf2 c2 29. Na3 {is about equal.}) 26. cxd4 Bxd4 27. Qf1 Be5 28.
Rg2 Qg5 29. Qf2 h5 $1 {Threatening 30...Rxg3!} 30. Bxe5 Qxe5+ 31. Kh1 Re1+ 32.
Rg1 Re2 ({After} 32... Qe4+ 33. Qg2 Rxb1 34. Rxb1 Qxb1+ 35. Kh2 Qxb3 36. Qe2 $1
{Black is winning, too.}) 33. Qg3 Qe4+ 0-1