[Event "Munich 1947"]  [White "Wolfgang Unzicker"]  [Black "Merkle"]  [Result "1-0"]  [ECO "C12"]  [Annotator "ATH"]  [PlyCount "51"]  [EventDate "1947.??.??"]  [SourceTitle "StarBase 4.56"]  [SourceDate "2004.11.04"]  [SourceVersion "1"]  [SourceVersionDate "2004.11.04"]  [SourceQuality "2"]   1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. Nge2 $5 dxe4 6. a3 Be7 7. Bxf6 gxf6  (7... Bxf6 $5 8. Nxe4 O-O 9. Qd3 Nd7 $11 {according to Stockfish. By the way,  this position is often reached via the Winawer with 1. e4 e6 2. d4 d5 3. Nc3  Bb4 4. Ne2 Nf6 5. Bg5 dxe4 6. a3 Be7 7. Bxf6 etc.}) 8. Nxe4 b6 ({Stockfish  regards} 8... f5 {as much better, e.g.,} 9. N4c3 h5 $1 $11) 9. N2c3 (9. g3 $1  f5 10. N4c3 c6 (10... Bb7 $6 11. d5 $14) 11. Bg2 Bb7 12. Nf4 Nd7 13. Qf3 Qc7  14. Nb5 $14) 9... Bb7 (9... f5 $5 10. Ng3 c6 $11) 10. Qf3 c6 11. O-O-O f5 $6 (  11... Nd7 12. Bc4 (12. g4 $5 Qc7 13. Bg2 O-O-O 14. Kb1 Kb8 $11) 12... f5 13.  Ng3 Nf6 $11) 12. Ng3 Nd7 13. Bd3 Qc7 (13... Nf6 $5 14. Bxf5 $1 Qc7 (14... exf5  $2 15. Rhe1 Kf8 16. Nxf5 $18) 15. Bd3 $14) 14. Rhe1 (14. Bxf5 $1 Nf6 (14...  exf5 15. Nxf5 Bg5+ 16. Kb1 Qf4 17. Rde1+ $14) 15. Be4 $14) 14... O-O-O (14...  Kf8 $2 15. Qe2 $2 (15. Bxf5 $1 $16) 15... Nf6 $15 {Unzicker-Kieninger,  Heidelberg 1949}) (14... Nf6 $5 15. Bxf5 O-O-O 16. Bh3 $14) 15. Nxf5 $1 Bf6 $6  (15... Bg5+ 16. Ne3 $16) 16. Ng3 c5 $2 (16... Rhf8 17. Bxh7 $16 {is the best  Black can do}) (16... Bxd4 17. Qxf7 $16 {Kayumov-Rahimov, Bukhara 2008}) 17.  Be4 Ba6 18. d5 $1 Bg5+ 19. Kb1 Ne5 (19... Nf6 $5 20. Nh5 $18) 20. Qh5 Bf6 (  20... h6 {is irrelevantly better, e.g.,} 21. h4 Bf6 22. dxe6 Rxd1+ 23. Rxd1  fxe6 24. Bd5 $1 $18) 21. Qh3 Kb8 ({So is} 21... Rhe8 22. Nh5 $18) 22. dxe6 $6 (  22. Nh5 $1 $18 {shreds Black more efficiently}) 22... Nc4 (22... fxe6 23. Qxe6  $18 {puts up more (pointless) resistance}) 23. Nh5 (23. Nd5 $1 $18 {is a real  bone-crusher}) 23... Bxc3 24. Qxc3 fxe6 25. Bd3 Qxh2 ({Black seeks a quick end  to his misery.} 25... Rd4 26. Bxc4 Bxc4 27. Rxd4 cxd4 28. Qxd4 $18 {would  prolong the game without changing the result.}) 26. Rh1 1-0