Out of the Frying-Pan…

"What shall we do, what shall we do!" Bilbo cried. "Escaping goblins to be caught by wolves!" he said. "Up the trees quick!" cried Gandalf; and they ran to the trees at the edge of the glade, hunting for those that had branches fairly low, or were slender enough to swarm up.

Normal sudoku rules apply.

Begin by entering the Column, Row, and Digit of the discovered Magic Ring from the previous puzzle.

Bilbo, Gandalf and the dwarves climbed the trees marked with circles. A digit in a circle indicates how many circles contain that digit.

Wolf cells (marked with "W") contain the same digit.

Shade the forest (grid) using two colours such that each colour forms an orthogonally connected region, and no 2x2 area is a single colour.

Digits in Tree cells indicate how many cells of the same colour are seen orthogonally from that position, including itself. The other colour blocks vision.