If you're lucky, you might be able to tap into future knowledge to help you commit Sudoku.
Speaking of people repeatedly commiting suicide, I made it to Floor 14 of Tatarus in P 3 P
A bit of fusing left me with two pretty strong Personas. An Omoikane and a Forneus.
The Omoikane has an electric spell, a healing spell, a bash attack, and Provoke, whatever that does. The Forneus has an ice spell, a healing spell, a bash attack, and an attack-up spell. The elements nicely compliment Junpei, with his fire spell, and Yukari, with her wind spell. I just need some other Personas with the other elements.
So, what does Sukukaja do? Forneus at his next level will learn Auto-Sukukaja, but all the game says is that it performs Sukukaja at the start of battle, and I don't have regular Sukukaja, to know what the auto form will do. Judging by the naming conventions, I'm guessing it's a stat-up spell, but what stat?
I have a message from another time...