[Event "Alekhine Memorial-01"]
[Site "Moscow"]
[Date "1956.10.13"]
[Round "4"]
[White "Pachman, Ludek"]
[Black "Botvinnik, Mikhail"]
[Result "1/2-1/2"]

1. c4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. e3 e5 6. Nge2 Nge7 7. O-O O-O 8. a3 d6 9. Rb1 Be6 10. Nd5 Bf5 11. Nxe7+ Qxe7 12. d3 e4 13. Nf4 exd3 14. e4 Be6 15. b3 Rab8 16. Qxd3 a6 17. Nd5 Qd8 18. Bf4 Kh8 19. b4 Ne5 20. Qc2 cxb4 1/2-1/2