[Event "NED-ch rev match"]
[Site "Amsterdam NED"]
[Date "1971.11.02"]
[Round "1"]
[White "Donner, Jan"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2500"]
[BlackElo "2430"]
[ECO "D97"]
[EventDate "1971.11.02"]
[PlyCount "71"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Na6 8.Be2 
c5 9.d5 e6 10.O-O exd5 11.exd5 Bf5 12.Be3 Re8 13.Rad1 Ne4 14.Nxe4 Rxe4 15.
Qc1 Qb6 16.b3 Ree8 17.Nd2 Nb4 18.Nc4 Nxa2 19.Qa3 Qa6 20.Qxa6 bxa6 21.Bf3 
Bc2 22.Rd2 Bxb3 23.Na5 c4 24.Nxb3 cxb3 25.d6 Rad8 26.Bg5 f6 27.Be3 Bf8 28.
Bd5+ Kg7 29.Bxb3 Nc3 30.d7 Re7 31.Ra1 Ne4 32.Rd4 Rdxd7 33.Rda4 Re5 34.Rxa6
Bc5 35.Bxc5 Nxc5 36.Rxa7 1/2-1/2

[Event "NED-ch rev match"]
[Site "Amsterdam NED"]
[Date "1971.11.04"]
[Round "2"]
[White "Ree, Hans"]
[Black "Donner, Jan"]
[Result "1-0"]
[WhiteElo "2430"]
[BlackElo "2500"]
[ECO "B99"]
[EventDate "1971.11.02"]
[PlyCount "105"]

1.e4 c5 2.Nf3 d6 3.Nc3 a6 4.d4 cxd4 5.Nxd4 Nf6 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7
9.O-O-O Nbd7 10.g4 b5 11.Bxf6 Nxf6 12.g5 Nd7 13.f5 Bxg5+ 14.Kb1 Ne5 15.Qh5
Qe7 16.Nxe6 Bxe6 17.fxe6 g6 18.exf7+ Nxf7 19.Qe2 O-O 20.Nd5 Qe5 21.h4 Bh6 
22.Bg2 Bg7 23.c3 Rab8 24.h5 a5 25.hxg6 hxg6 26.Ne3 b4 27.Ng4 Qe6 28.c4 Ne5
29.Nxe5 Bxe5 30.Bh3 Qf6 31.Rdf1 Qe7 32.Rfg1 Rf6 33.Bf5 Qg7 34.Rh4 Kf8 35.
Rhg4 b3 36.a3 Bd4 37.Rxg6 Rxg6 38.Rxg6 Qh8 39.Qf3 Bf6 40.e5 dxe5 41.Qc6 
Be7 42.Be6 Qh7 43.Qe4 Rd8 44.Qf5+ Ke8 45.Rg8+ Qxg8 46.Qh5+ Kf8 47.Qf3+ Kg7
48.Qg4+ Kh8 49.Bxg8 Rxg8 50.Qh5+ Kg7 51.Qxe5+ Kf7 52.Qd5+ Kf8 53.Qf3+ 1-0

[Event "NED-ch rev match"]
[Site "Amsterdam NED"]
[Date "1971.11.05"]
[Round "3"]
[White "Donner, Jan"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2500"]
[BlackElo "2430"]
[ECO "D97"]
[EventDate "1971.11.02"]
[PlyCount "60"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 a6 8.Bf4 b5
9.Qxc7 Qxc7 10.Bxc7 Bb7 11.Bd3 b4 12.Na4 Bxe4 13.Bxe4 Nxe4 14.Rc1 Nd7 15.
O-O Bh6 16.Rc6 Nef6 17.Ne5 Nxe5 18.dxe5 Nd5 19.Rd1 Nxc7 20.Rxc7 Rfd8 21.
Rxd8+ Rxd8 22.g3 Rd1+ 23.Kg2 Ra1 24.b3 Rxa2 25.Kf3 Bd2 26.Nc5 Kf8 27.h4 a5
28.Rc8+ Kg7 29.Rc7 Kf8 30.Rc8+ Kg7 1/2-1/2

[Event "NED-ch rev match"]
[Site "Amsterdam NED"]
[Date "1971.11.06"]
[Round "4"]
[White "Ree, Hans"]
[Black "Donner, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2430"]
[BlackElo "2500"]
[ECO "B09"]
[EventDate "1971.11.02"]
[PlyCount "83"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.e5 Nfd7 7.Bc4 Nb6 8.Be2 
dxe5 9.dxe5 Nc6 10.Qxd8 Rxd8 11.Nb5 Bf5 12.c3 Rac8 13.O-O f6 14.exf6 exf6 
15.Rd1 Re8 16.Kf2 Be6 17.Nbd4 Nxd4 18.Nxd4 Bd5 19.Be3 Nc4 20.Nc2 Nxe3 21.
Nxe3 Be6 22.Kf3 Bf8 23.Bc4 Bc5 24.Bxe6+ Rxe6 25.Nc2 Rce8 26.Re1 Kf7 27.
Rxe6 Rxe6 28.Rd1 Rb6 29.b3 Bd6 30.Ne3 Rc6 31.Rd3 b5 32.g4 Ke6 33.h3 f5 34.
gxf5+ gxf5 35.c4 a6 36.Rd2 Bc5 37.cxb5 Bxe3 38.Re2 axb5 39.Rxe3+ Kd6 40.
Rd3+ Ke6 41.Re3+ Kd6 42.Rd3+ 1/2-1/2

[Event "NED-ch rev match"]
[Site "Amsterdam NED"]
[Date "1971.11.08"]
[Round "5"]
[White "Donner, Jan"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[WhiteElo "2500"]
[BlackElo "2430"]
[ECO "D85"]
[EventDate "1971.11.02"]
[PlyCount "81"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Ba3 O-O 8.Nf3
b6 9.Be2 Bb7 10.Qc2 c5 11.O-O cxd4 12.cxd4 Qd7 13.Rad1 Rc8 14.Qb1 Qa4 15.
Bc1 Rc2 16.Rd2 Rxd2 17.Bxd2 Ba6 18.Bxa6 Nxa6 19.Qb3 Qxb3 20.axb3 Nc7 21.
Rc1 Nb5 22.d5 Kf8 23.Kf1 Ke8 24.Ke2 h6 25.Be3 Kd7 26.Kd3 e6 27.Nd4 Bxd4 
28.Bxd4 exd5 29.exd5 Nxd4 30.Kxd4 Rc8 31.Ra1 a5 32.b4 axb4 33.Rb1 Rc2 34.
Rxb4 Rxf2 35.Rxb6 Rxg2 36.Rb7+ Kd6 37.Rxf7 Rg4+ 38.Ke3 Kxd5 39.Kf3 Rg5 40.
Ra7 Ke5 41.Ra5+ 1/2-1/2

[Event "NED-ch rev match"]
[Site "Amsterdam NED"]
[Date "1971.11.09"]
[Round "6"]
[White "Ree, Hans"]
[Black "Donner, Jan"]
[Result "1/2-1/2"]
[WhiteElo "2430"]
[BlackElo "2500"]
[ECO "B07"]
[EventDate "1971.11.02"]
[PlyCount "80"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Bg5 h6 5.Bh4 Bg7 6.f4 c5 7.e5 Nh5 8.dxc5 dxe5 
9.Qxd8+ Kxd8 10.O-O-O+ Bd7 11.fxe5 Bxe5 12.Nf3 Bxc3 13.bxc3 f6 14.Bc4 g5 
15.Bf2 Kc7 16.Nd4 Nc6 17.Nb5+ Kc8 18.h4 Ne5 19.Be2 Nf4 20.Bf1 a6 21.Nd4 
Kc7 22.Bg3 Bg4 23.Re1 Kd7 24.Re4 Rac8 25.hxg5 hxg5 26.Rxh8 Rxh8 27.Bxf4 
gxf4 28.Rxf4 Rh1 29.Kb2 Kc7 30.c6 Nxc6 31.Nxc6 Kxc6 32.Bxa6 f5 33.Bd3 e5 
34.Bxf5 exf4 35.Bxg4 Kc5 36.Bf3 Rh6 37.a4 Ra6 38.Kb3 Rb6+ 39.Ka3 Kc4 40.a5
Ra6 1/2-1/2

[Event "NED-ch rev match"]
[Site "Amsterdam NED"]
[Date "1971.11.11"]
[Round "7"]
[White "Donner, Jan"]
[Black "Ree, Hans"]
[Result "1-0"]
[WhiteElo "2500"]
[BlackElo "2430"]
[ECO "D87"]
[EventDate "1971.11.02"]
[PlyCount "75"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 c5 7.Bc4 Bg7 8.Ne2 
O-O 9.O-O cxd4 10.cxd4 Nc6 11.Be3 Bg4 12.f3 Na5 13.Bd3 Be6 14.d5 Bxa1 15.
Qxa1 f6 16.Rb1 Bd7 17.Bh6 Rf7 18.e5 fxe5 19.Qxe5 b6 20.Bd2 Nb7 21.Bc3 Rf6 
22.Ng3 Nd6 23.Re1 Bb5 24.Bb1 Rc8 25.Nh5 Qc7 26.Nxf6+ exf6 27.Qe6+ Nf7 28.
Bxf6 Bd7 29.Qe3 Qd6 30.Qd4 Re8 31.Rxe8+ Bxe8 32.Bd3 b5 33.f4 Qa3 34.h4 
Qc1+ 35.Kh2 Nh6 36.Be2 Nf5 37.Qe5 Qe3 38.Bf3 1-0

[Event "NED-ch rev match"]
[Site "Amsterdam NED"]
[Date "1971.11.13"]
[Round "8"]
[White "Ree, Hans"]
[Black "Donner, Jan"]
[Result "1-0"]
[WhiteElo "2430"]
[BlackElo "2500"]
[ECO "E67"]
[EventDate "1971.11.02"]
[PlyCount "85"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.c4 Nbd7 7.Nc3 e5 8.Qc2 Re8
9.Rd1 c6 10.b3 e4 11.Ng5 e3 12.fxe3 Ng4 13.e4 Nf8 14.Nf3 Qe7 15.h3 Nf6 16.
e3 Bh6 17.Qe2 Nxe4 18.Nxe4 Qxe4 19.Ne5 Qf5 20.Rf1 Qe6 21.Nxf7 Bxe3+ 22.
Bxe3 Qxe3+ 23.Qxe3 Rxe3 24.Kh2 Rd3 25.d5 cxd5 26.cxd5 b6 27.Nxd6 Ba6 28.
Rf2 Rd8 29.Nf7 R8xd5 30.Bxd5 Rxd5 31.Re1 Rd7 32.Nh6+ Kg7 33.Re8 Kxh6 34.
Rexf8 Rd1 35.R8f7 Bb5 36.g4 Bc6 37.h4 a5 38.Rc7 Bd5 39.Kg3 Rd3+ 40.Kf4 Bg8
41.Ke4 Rd8 42.Rf6 Rb8 43.Ra7 1-0

