1...d2 2.Be2#

1...d4 2.Be6#

1...c*b4 2.Rc1#

1.Sf3? d2!

1.Sf5? d4!

1.Rb3? c*b4!

1.B*h3! - 2.Sf3 - 3.Sd2#

2...d2 3.Bf1#

1...R*h4 2.Rb3 - 3.Sb2#

2...c*b4 3.Rc8#

2...d4 3.Be6#

1...Rg8 2.Sf5 - 3.Sd6#

2...c*b4 3.Rc1#

2...d4 3.f*g8Q#

The theme of 4th WCCT and 12 WCCT