Just came across this game while browsing at random through a
database. Can anyone explain this one-move wonder? Was there a
forfeit? Or is there just no complete score?

[Event "Brussels SWIFT blitz"]
[Site "Brussels"]
[Date "1992.??.??"]
[Round "?"]
[White "Salov, Valery"]
[Black "Piket, Jeroen"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2655"]
[BlackElo "2615"]
[PlyCount "1"]
[EventDate "1992.07.??"]
[EventType "swiss (blitz)"]
[EventRounds "5"]
[EventCountry "BEL"]
[Source "ChessBase"]
[SourceDate "2004.01.01"]

1. a4 {(...)} 0-1