checkpoint

Shogi.Api/Extensions/ContractsExtensions.cs

@@ -38,14 +38,6 @@ public static class ContractsExtensions
 		WhichPiece = piece.WhichPiece.ToContract()
 	};
 
-	public static IReadOnlyList<Piece> ToContract(this List<Domain.ValueObjects.Piece> pieces)
-	{
-		return pieces
-			.Select(ToContract)
-			.ToList()
-			.AsReadOnly();
-	}
-
 	public static Dictionary<string, Piece?> ToContract(this ReadOnlyDictionary<string, Domain.ValueObjects.Piece?> boardState) =>
 		boardState.ToDictionary(kvp => kvp.Key, kvp => kvp.Value?.ToContract());