Version 5.6 of Genshin Impact features a new weekly boss Domain called The Game Before the Gate, with new chess-themed mechanics Read all about it from the official post below:
Unresolved Chess Game Unlock Requirements
To attempt this fight, Travelers must complete the newest Archon Quest Interlude Chapter “Paralogism” which releases in version 5.6. This Archon Quest does not require any Natlan Archon Quest at all. Instead, Act 3’s Interlude “Inversion of Genesis” (The Wanderer Quest) as well as Albedo‘s Story Quest.
Any Travelers that are at least AR 40 can also simply Quick Challenge this fight instead.
Freeze Characters Are Important!
The second phase of this fight heavily requires Frozen Elemental Reactions to take place. Otherwise your active character will be 1-hit with a “Lethal Blow”. So make sure to equip yourself with Hydro and Cryo characters such as:
For this mechanic, Elemental Reactions are significantly more important than damage itself!
New Boss Materials from Unresolved Chess Game
New Boss Materials are of course available from the new Trounce Domain, These can be used to level the talents of Ifa alongside some of the future characters who will be released in the next versions of Genshin.
For example, these materials are used in Ascending Skirk.
Skirk Ascension and Talent Materials