Congrats! 30 balls is the correct answer... As you mention in your comment, there are 16 balls on the lowest level (a square of 4x4 = 16), followed by a square of 3x3 = 9, then 2x2 = 4 and then the single ball on top. Your SBD is in your wallet. Hope to see you play again soon.
Congrats! 30 balls is the correct answer... As you mention in your comment, there are 16 balls on the lowest level (a square of 4x4 = 16), followed by a square of 3x3 = 9, then 2x2 = 4 and then the single ball on top. Your SBD is in your wallet. Hope to see you play again soon.
of course, I love math problems and puzzles