[Event "World-ch20 Smyslov-Botvinnik +6-3=13"]
[Site "Moscow"]
[Date "1957.04.20"]
[Round "19"]
[White "Botvinnik, Mikhail"]
[Black "Smyslov, Vassily V"]
[Result "1/2-1/2"]

1. c4 g6 2. Nc3 c5 3. g3 Bg7 4. Bg2 Nc6 5. e3 e6 6. Nge2 Nge7 7. d4 cxd4 8. Nxd4 d5 9. cxd5 Nxd4 10. exd4 Nxd5 11. O-O O-O 12. Qb3 Qb6 13. Nxd5 exd5 14. Bxd5 Qxb3 15. Bxb3 Bxd4 1/2-1/2