Patches #185 Solving Notes
First read: Patches #185 starts with 8 clue cells on a 7×7 board. Begin with the fixed clues at r2 c3, r2 c4, r3 c2 instead of guessing color groups from empty space. Those clue cells are the safest anchors because every solved region must keep exactly one clue area and still cover the whole board.
Main anchor: The strongest number anchor is the 8-cell clue at r5 c3. Large regions usually have fewer safe placements, so this clue is a better first test than a tiny patch. After reveal, check it against Region 5, which should form the 2×4 rectangle from r4 c1 to r5 c4.