Short summary...I did not go through the battle, but Madara wins in this chapter and in the last moments he is sitting by the bodies of Yahiko and Nagato. There are some interesting statements.
He says that Nagato was the third Rikudo, which I understand like the third one to possess the
Rinnegan.
Madara sits next to Nagato. "You are the third Rikudō... [Holding] a power so strong, it was even able to turn your red hair, proof of your Uzumaki clan lineage, into white...
You turned traitor and yet you still smile...?"

Konan is breathing faintly: "Why? You should be dead. No matter how often I tried it out, if I proceeded like this, I should have brought you down"
Madara: "Izanagi... The ability to change illusion into reality, in exchange for light. An Uchiha kinjutsu... The Uchiha and Senju... Only those who hold the power of both sides can use this dōjutsu!"
Konan: "Both the Senju and Uchiha...? That is the Rikudō's power. You have such power..."
Madara: "you're my former comrade. As a token of friendship, I'll teach you a bit about my techniques and my body. Izanagi is essentially what you said. A technique applying all things created by the Rikudō Sennin. originally, the Rikudō Sennin, the founder of both the Uchiha and Senju and possessing the blood and powers of both, made all things. Using the power of Yin Release (Inton), originating from the spiritual energy governing imagination, he created form out of nothing. With the power of Yang Release (Yōton), originating from the physical energy governing life, he blew life into those forms. The Bijū are also one of those... He used Yin-Yang Release (Onmyōton) to create every Bijū from the Ten-Tails' chakra. A technique that can embodies imagination and life. That is Izanagi."
Konan: "What kind of person are you?"