if a player makes a foul (P or N) when pocketing a ball, that ball must be deducted from the remaining ball

[deruosi]

if a player pockets 2 balls, then pockets a third one succesfully and cue ball falls in a pocket too: 2 P must be recorded, but only 6 balls remains on the table

[coppolapaolo]

This can already be recorded on the score card. The only problem is that the number of remaining balls is not correct, so when you finish the inning you have to press G

[coppolapaolo]

it is not possible to deduce from the keys how many balls should be removed. The foul could come downstream from one or more balls that were pocketed. A -1 button could be added to take away, but it does not seem necessary at this time. I would leave it that way.