Hello, Diancie chess puzzle is a super annoying part of Diancie quest. I made this guide to help ppl stop from suffering this badly designed quest and enjoy the game more. I found out this is my best strat to win with more than 80% wr. Due to RNG, technically you can miss everything so there will never be a guarantee win, but trust me, this is much better than almost any current strategy ppl using, I able to help 5 ppl won 5 times a row and super fast if u lucky enough.
the first few turns always the same but can be different later, so my guide will only include the first 3 turns so ppl can stop asking why my board completely different than some youtube videos, gladly i'm here for u 🙂
Turn 1: RNG doesn't matter
Turn 2: RNG doesn't matter
Turn 3: it's ok if you miss 90% acc rockslide on any those Yanmega but should pior to kill offensive yanmega first next turn in order ( jolly > modest > defensive nature). Also the miss Toxic on greninja is fine.
Turn 4: from this turn, it will be slightly different for everyone so no Picture. You should move jolly Carbink to rock slide Delphox ( better not miss this 90% ) then use timid Carbink to atk jolly or modest yanmega with ancient power. both defense Carbink should try to toxic greninja.
Turn 5+: atk bold ninjask with timid Carbink, then use everything you have left to kill greninja and don't forget to set up light screen again. This Poke have +2 eva so good luck.