(20.04.2013) Ехо матове след черни рокади в задача с фееричното условие Контактен шах (KoKo chess) от Anatoly Stepochkin от Русия.

1.a5 GNb7 2.0-0-0 GNe8 3.Rd7 GNc7 4.Rhd8 GNb5 #

1.0-0 GNb7 2.Rf4 Kg4 3.Rf7 GNe6 4.Raf8 GNh5 #

Echo (Author) 

Gnu (GN): a leaper combining Camel (1/3,3/1) and Knight.  

Kоko Chess (Contact Chess): a move is legal only if the arrival square is adjacent to any piece, this applies also to the capture of King.