Edit: I posted the wrong version. Apologies. Corrected now.
Yay, a big puzzle!
Rules: Shade some empty cells black to create a single group of black cells that are all connected to each other through their edges. No 2×2 cell area within the grid contains all black cells. Numbers to the left/top of the grid represent the groups of consecutive black cells which are in that row/column in order, either from left to right or from top to bottom. For example, a clue of “3” means the row or column has three consecutive black cells, and a clue of “3 1” means that the row or column has a group of three consecutive black cells followed by a single black cell, separated by at least one white cell. A question mark (?) represents a group of consecutive black cells whose size is unknown; an asterisk (*) represents any number of unknown groups of black cells, including none at all.
Enjoy!
Penpa link: https://git.io/JEEke
PS's puzzles + 
Can you post a printable version of this ? Right now, clicking on the image goes straight to online penpa interface.
I edited it so it doesn’t go to the link. Try now?
Yup.Now it opens as an image but the grid size is too tiny to print.If you could make it a bit bigger that would be ideal. This puzzle could nice fill my weekend !
If I make it bigger the post looks bad. Is it possible to just go to the penpa link, click on screenshot, and download the image to your preferences?
Thanks ! Will do
Managed to complete finally. Noticed that at occasions whenever stuck, there was one single clue which really helped in continuing. Excellent puzzle !
Thanks 😀 I was very happy with it