public static string AsString(this byte[,] squares, string row_sep = "\n", string col_sep = "\t")
{
var sb = new StringBuilder();
var disp = squares.AsDisplayValues();
for (var x = 0; x < SZ; x++)
{
sb.Append(string.Join(col_sep,
Enumerable.Range(0, SZ)
.Select(y => $"{disp[x, y]}")));
sb.Append(row_sep);
}
return(sb.ToString().TrimEnd()); //we know by default we'll have a trailing newline
}
public static float Score(this byte[,] squares) => squares.AsDisplayValues().Cast <int>().Sum();