Place one set of eight chess pieces (all of the same color, without pawns) on a board such that the maximum number of different moves can be made.

That sounds easy, but I'm guessing it's harder than it sounds. This post starts the timer.

98 if I counted correctly. The best solution is surely no more than 101.

You are close!  The best solution I know of has 100 different moves.

100 moves.

Move the knight of f3 to g5 and 99 moves.

Congratulations!!  You have duplicated the 100 move solution I have.  I believe this is the optimal solution.  There is one variation, the rook on d1 could also be placed on d7.  I will have to post a harder puzzle....

If white is allowed to add pawns (on ranks 2 - 7), what is the maximum number of moves?  I have a solution with 105 moves.  Can anybody find this solution, or can anybody do better?