Two years after police announced a plan to solve Kentucky cold cases with playing cards, three once-dormant homicide cases have been closed.

However, most homicides and missing persons cases featured on decks of cards given to prison inmates have not generated enough leads to make arrests, state police said in a news release Thursday.

The general public can view the unsolved cases at Kentuckystatepolice.org/unsolved_cases.htm.

In December 2010 police unveiled the plan: Each of 52 cards featured a different cold case from throughout the state. Nearly 8,000 decks were printed and given to prison inmates, who might have information about the cases.

Despite police having receiving hundreds of tips, most of the featured cases — including five homicides in Lexington dating to 1997 — remain unsolved.

State police are asking the public to view the cards and call police with tips, which can be submitted anonymously.

Josh Kegley: (859) 231-3197. Twitter: @HLpublicsafety.