Alain PALLIER (France)
 
Win 4+4

1.c7

1.Rxc8? (1.Re8? Bd6=) 1…Nxc8+ 2.Kb7 Na7(e7) 3.Kxb8 Nxc6+ =
1…Bxc7
2.Kxc7 Ba6
3.Kb6!
Switchback.
3.Rd7? Nf5! =
3…Bc4
3…Be2 4.Rf8+! Kg4 5.Re8! Nd5+ 6.Kc5 Bf3 and, eg, 7.Rg8 Kf5 8.Rf8+ Nf6 9.Kd6 Kg5 10.a6 Bg2 11.a7 Bh1 12.Rf5+ and 13.Rd5 +-
4.Kc5!
4.Rf8+? Kg3! 5.Kc5 Bd3! 6.Rf7 Nf5 =
4…Ba6 (black switchback)
5.Rd6!
5.Kb6(?) Bc4 6.Kc5 = loss of time.
5.Ra8(?) Bd3 6.Rd8 = loss of time.
5…Bc8! (black switchback)
5…Bf1 6.Rf6+-
6.Kb6!
Switchback.
6.Rd8 (?)Ba6 7.Rd6 = loss of time.
6… Ke(f)4
7.Kc7!
Switchback.
7… Ke5!
8.Rh6!
White rook must control a6 : 8.Rd1? Ba6! (black switchback) =
8…Bf5
9.a6
9.Rh5? Nd5 ! 10.Kb7 Nb4! =
9… Nc8
9…Nd5 and, eg, 10.Kd8 Be4 11.a7 Nf4 12.Kd7 Bf5+ 13.Kc7 Be4 14.Rc6 Nd5+
15.Kb8 Nb4 16.a8=Q +-
10.Kb8!
10.Rh5? Na7! 11.Kb6 (11.Kb7 Nb5) 11…Nc8+ =
10.Rc6? Be4! (10…Kd5 11.Kb7 +-) 11.Rc5 Kd4! =
10…Bd7
10…Nd6 11.a7 +-
11.Rh8! Ne7
12.Kc7! +-
Last switchback.
12.Rh6(?) Nc8 13.Rh8 (13.Kc7 Bf5 14.Kb8 Bd7) is a loss of time.

Four switchbacks by White king.