The management of the Common Well is definitely the most interesting strategic key about this variant.

We know that, during our turn, we can play as many cards as we want: 

If we play them all, we win the round and we earn the relative points, otherwise we will return to having eleven cards in hand, drawing from the Common Well as many cards as we played.

The the Common Well is visible to both players and the cards must be drawn in the order in which they occur (the dealer has slightly overlapping cards such to leave no room for doubt about the order of withdrawal).

I’ll make a small example.

Here you can see that the player has placed the 6 and 7 green, and the 6 black.

Before moving the game to the opponent he/she must draw the top three cards of the Common Well (which in the image is slightly shifted to the right).

When the common well is depleted, the dealer makes it “come back to life” by uncovering other 10 cards from the deck.

CAUTION: If a player places more cards than are left in the Common Well, in order to have 11 cards back in his hand, he must Collect all the cards left in the Common Well and take delivery from the dealer of as many COVERED cards as needed to complete the hand.

As such, the dealer will finish up positioning the 10 cards of the common well taking into account how many he has already delivered to the player. So, if in the Common Well there were to be 2 left over cards and the player positions five cards, as soon as the round ends he shall pick both cards from the well and will be given 3 "in the dark" cards from the dealer, whom will continue uncovering SEVEN cards for the Common Well .