Christian Poisson (France)
 
#10 2+1

b) - pd4; + Rd4
1.d5! Ke2 2.d6 Kd3 3.d7 Ke4 4.d8Q Kf5 5.Kd4 Kf4 6.Qf6+ Kg3
7.Ke3 Kg4 8.Qg6+ Kh3 9.Kf3 Kh2 10.Qg2#
b)
1.Kc4! Ke2 2.Rd3 Kf2 3.Kc3 Ke2 4.Kc2 Ke1 5.Rd2 Kf1 6.Kd1 Kg1
7.Ke1 Kh1 8.Kf2 Kh2 9.Rd3 Kh1 10.Rh3#