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Tapa-Like Loop (Unknowns) (1181)
Instruction:
Draw a single loop that passes orthogonally through centers of cells. The loop cannot intersect itself or enter the same cell more than once. The loop cannot go through cells with numbers.
Numbers in a cell indicate the sizes of contiguous groups of cells used by the loop along the "ring" of 8 cells touching that cell (fewer for cells along the outside edge). Cells are only considered to be part of the same group (for a specific number) if the loop enters them without entering other cells in between. If there is more than one number in a cell, then the loop must enter a cell not adjacent to the numbered cell between the cell groups. The numbers are given in no particular order. As a special case, if the number given in a cell is a zero (0), it means that none of the cells around that cell are used in the loop.
Some non-zero numbers have been replaced with question marks ('?'). Their value is for you to determine.