No Squares Tapa Hard

No Squares Tapa Puzzle Rules:

• Basic Tapa rules apply:

  • Empty cells can be filled to form a connected black region.

  • No 2x2 area can be entirely filled with black cells.

  • Clue cells with numbers cannot be filled in and represent the length of each consecutive black cell block in the eight surrounding cells.

  • If a clue cell has multiple digits, the groups of black cells must be separated by at least one white cell.

  • Question marks (?) can be used instead of clue numbers and represent any non-zero integer.

• Additional No Squares Tapa rule:

  • the amount of white cells (except clue cells) must be equal to the amount of black cells.