Cant find the last block on under the mountains
pixel_player864712857
You can compare with the maps
https://drive.google.com/drive/mobile/folders/18Qo_vVBSWchsq-8XQka8zf8MNlKVxGJd?usp=drive_open
Or use the Last tile finder.
If you don’t have it yet, you can purchase it for gems or coins in the shop/extra tab.