Cache not at posted coords. I feel like you should know that by now.
Despite the relevance of rainbowz to this cache or puzzle, it was the best I could come up with.
Good luck!:
29 41xxx 95 47xxx
A=1 B=2
zrffntr zr, v npghnyyl unir dhvgr n srj uvagf gb bssre qrcraqvat ba ubj sne lbh'ir znqr vg :)