Mikhail Botvinnik vs Donner, Jan Hein

[Event "Leipzig olm prel"]
[Site "Leipzig"]
[Date "1960.??.??"]
[Round "3"]
[White "Botvinnik, Mikhail"]
[Black "Donner, Jan Hein"]
[Result "1/2-1/2"]

1.Nf3 d5 2.g3 g6 3.Bg2 Bg7 4.d4 Nf6 5.c4 c6 6.Na3 O-O 7.O-O Ne4 8.Bf4 Qb6 9.Qc1
Be6 10.Rd1 Na6 11.Be5 f6 12.Bf4 Bf7 13.c5 Qd8 14.Nd2 Nxd2 15.Qxd2 e5 16.Bh6 Bxh6
17.Qxh6 Qe7 18.Rac1 Rae8 19.Nc2 Be6 20.b4 Nc7 21.a4 a6 22.Na1 Bd7 23.Nb3 Ne6
1/2-1/2