Lara must complete it once she reaches San Juan in the later part of the game (Via Veritas main mission). The gate riddle inside the Kuwak Yaku ruins is quite an extensive one for the Shadow of the Tomb Raider standards.You will have to complete it when exploring the ruins, shortly after killing the mercenaries and sliding down the rope into the oil well. Then you can climb the sticks and get to the next mirror. Shadow of the tomb raider Mirror puzzle UPDATE: Solved: My game was being weird and the platform in the middle was glitched in place, I had to shine the light to make it go up and down to 'unstick' Hey guys, so I'm at the point where I have to do a sort of mirror puzzle and I can't figure out whats wrong. For Shadow of the Tomb Raider on the PlayStation 4, a GameFAQs message board topic titled 'The sunlight mirror puzzle. standing next to a mirror in the main puzzle chamber in … Turn the 1st mirror to jump to the left side, turn the left to move the 1 on the far rite side.