(1) Study by Jan Timman. 1981

1.Ne2+ Ke5 2.Nd4 Kd6 3.b5! [ 3.Ra6 Bxd4 4.Rxa8 Be5= 5.c4 dxc4+ 6.Kxc4 ]

3...cxb5 [ 3...Bxd4 4.Rxa8 Bb6 5.Ka4 cxb5+ ( 5...Kc7 6.Rf8! cxb5+ 7.Kxb5 Be3 8.Rf3 Bg1 9.Rd3 Kd6 10.c4+- ) 6.Kxb5 Bf2 7.Rd8+ Ke5 8.Kc6 d4 9.c4 Ke4 10.c5 d3 11.Kb5+- ]

4.Nxb5+ [ 4.Rxa7? Rxa7 5.Nxb5+ Kc6! 6.Nxa7+ Kc5= A mutual zugzwang position!]

4...Kc5 5.Rxa7 [ 5.Nxa7 Timman calls this move a mistake, but instead of his 6.Ra5+? white wins with 6.cxd4+ since the pawn is immune. 5...d4 6.Ra5+? ( 6.cxd4+ Kb6 ( 6...Kxd4 7.Nc6+ Kc5 8.Rxa8 ) 7.Kc4 ) 6...Kb6= ]

5...Rb8 6.Ka4! Rxb5 7.Rc7+ Kb6 8.Rb7+ [ 8.Rb7+ Kxb7 9.Kxb5 Kc7 10.Kc5 Kb7 11.Kxd5 Kc7 12.Kc5 Kb7 13.Kd6 Kb6 14.c4 Kb7 15.c5 Kc8 16.Kc6 Kd8 17.Kb7 ] 1-0