How Sasuke Could Seal Madara Solo?

Adult Sasuke faces a major technical hurdle in sealing Prime Ten-Tails Madara solo: he no longer possesses the Six Paths Chibaku Tensei seal (the moon-sized seal used with Naruto). 

However, Sasuke still has several "God-tier" options to incapacitate or seal Madara on his own.

1. Standard Chibaku Tensei (Planetary Devastation)

Sasuke can use his Rinnegan to create a standard Chibaku Tensei. 

• The Method: Unlike Nagato, who created a core in the sky, Sasuke can use his target as the core itself. By clapping his hands, he can instantly trap Madara in a massive sphere of earth and rock.
• The Limitation: This is a physical sealing method. While it could hold most shinobi, Madara has enough raw power to potentially break out or use Almighty Push to repel the rocks before they form.

2. Soul Ripping (Human Path)

Through the Human Path of the Rinnegan, Sasuke can physically rip out an opponent's soul. 

• The Method: If Sasuke "blitzes" Madara with his superior speed, he can touch him and begin the extraction.
• The Benefit: This bypasses Madara’s insane physical regeneration. Even if Madara’s body is immortal, his soul is still vulnerable. Once the soul is removed, Madara would be effectively neutralized or "sealed" within the King of Hell.  

3. Dimension Hopping (Banishment)

One of Sasuke’s most effective "solo wins" is using his Space-Time Ninjutsu. 

• The Method: Sasuke can open a portal to one of Kaguya’s abandoned dimensions (like the Acid or Ice dimensions) and use Amenotejikara to swap Madara into it, then quickly close the portal.
• The Verdict: While technically banishment rather than a traditional seal, it removes Madara from the battlefield permanently. Without his own space-time abilities to return from deep dimensions, Madara would be "sealed" there forever. 

4. Tailed Beast Suppression

Sasuke is a master at suppressing Tailed Beast chakra with a single glance. 

• The Method: If Sasuke can use his Genjutsu: Rinnegan to suppress the Ten-Tails inside Madara, he could theoretically weaken Madara's defenses enough to apply a lower-level sealing jutsu, like those used by the Anbu or the Uzumaki clan. 

Summary of Sealing Odds