Genshin Impact 3.3 update has brought new characters, domain, quests, events, weapons, and much more. In addition to this, a brand new permanent mode called Genius Invokation TCG, and in order to unlock it, you will have to complete the Battlefield of Dice, Cats, and Cards quest.
While the other parts of this quest are quite simple, many players are stuck with the subquest "Find a Player and Have a Duel," as you will not get directions to find that person. If you are one of them, here is how you can complete this quest.
Genshin Impact: How to Find a Player and Have a Duel
In order to complete the "Find a Player and Have a Duel" quest, you will have to use the Casket of Tomes gadget that you have gotten before this quest begins. This gadget will help you find nearby Genius Invokation TCG players and will let you play with them.
You will then get the location of the player marked with the card on the map, and all you have to do is go there and talk to the person and play a game of Genius Invokation TCG. You will have to win the game, and once you do it, the quest will be completed.
That is everything you need to know about completing the "Find a Player and Have a Duel" quest in Genshin Impact.