public void TestMS1B()
{
TestingHelper testingHelper = new TestingHelper();
Initialiser bitboards = new Initialiser();
UInt64[] rankDiags = bitboards.InitialiseRankDiagonals();
UInt64 diag = Constants.MainDiagonal;
//rankDiags[1];
BitHelper bitHelper = new BitHelper();
UInt64 ms1b = bitHelper.GetMostSignificant1Bit(diag);
Debug.WriteLine("Diagonal:");
Debug.WriteLine(testingHelper.BitboardToBoardString(diag));
Debug.WriteLine("MS1B:");
Debug.WriteLine(testingHelper.BitboardToBoardString(ms1b));
}