My take on the classic mastermind board game, but with n=5.

I have added space for some small 5mm x 2mm round magnets to be placed to make the drawers snap into closed or "in play" positions (or you can pull them completely out if you want to have them seperate during a game).

I use 2 different colours for the scoring pins, and at least 7 different colours for the playing pins (if you are only playing n=4 on this board, then 6 colours would be fine).

For the scoring pins 30 white and 20 black should be enough.

For the playing pins, 11 of each colour should be enough (10 for the attacker, and 1 for the defender), assuming you are playing the version where you can only use a given colour once per row.