I am going to solo a sorceress, which spells should I pick?
What about stats.

(maybe I will pick up Soulafein)

<font color="lightblue">Choose spells that you will use. Choose spells that you *do* use. Don`t bother with say, mirror image, if you never use illusions.
As for stats, try to go more for Wisdom/Intelligance than the tank stats (Strength, Dex, Con); high Cha also helps with Item Prices- you will want that Robe of Vecna ASAP [img]smile.gif[/img] </font>

Find dundees sig. Follow the links. Absorb his wisdom.

Dundee's sig works very good ;) About stats: roll 18 for both INT and WIS (Wish and lim. Wish spells), roll at most 16 CON (mages do not get bonuses from high CON), and do not bother about CHA(even set it as low as you can - distribute points to other stats) - you wont sell anything untill the end of circus tent, and by then you'll have a veeery good ring (no spoiling) and a Friends scroll. that would be enough, along with the Den Of Seven Vales, to raise enough money to buy that pretty cool ROBE!

The sorcerer-class doenst need INT., since he doesnt need to scribe scrolls and it really useless except for some more dialogie-options once or twice in the game. -10- would probably be best, since that way you can still cast from scrolls and such, ( might be 12, but IIRC its 10 ).
Wisdom is extremely important, as its that stat. that'll truly make you powerfull in the end ( lvl. 9 Wish-option to rememorize all spells ).
So i'd say boost DEX. to 18 for AC and sling bonusses. CON to 16, INT. 10, WIS. 18. Make strengt good enough to be able to carry some inventory around; 12-14 should do it. Charisma isnt really that important 'cause of lvl 1 friends and that ring.

12-14
18
16
10
18
8-10
________ +
82 - 86 points

Not that hard to roll [img]smile.gif[/img]

Unless you have ToB, dont bother with WIS or INT, they have no effect (very little anyway) on your game. You will miss out on one or two witty comments, some options for the limited wish spell (which aint that good anyway IMHO) and some lore, which you dont need because of the glasses of ID. CON no higher than 16, strength... there is a girdle to increase it to 19 right near the start of the game... but you may want another belt. DEX, max it out (18). CHA, as Tassadar said, these is a ring right near the start, as well as a friends scroll, and if you go to the docks district, you can purchase a nymph cloak (+1 or 2 CHA) That + the ring + friends will give you 25 charisma, you'll be the hottest sorceress on the planet :D

It depends if you're role playing or power gaming. If you're role playing, then forget the whole dexterity, strength, constitution and go for Int/Wisdom (Makes more sense for a Sorc in my opinion). Otherwise, go for the 16 constitution/18 dexterity

Link to Dundee's page: here

<font color="gold">I wouldn't completely drop the Con. After good ol' AD&D-rules, the higher Con you have, the bigger chance it is for the spellcaster to finish casting his/her spell whilst beeing attacked. ;) </font>

can a solo sorceress do all the quests and fights? Is it too hard? Any advice would be nice...

Yes.
For tactics, trying using the Search function.