Bulldoku Level 549: Walkthrough & Solution

Step-by-step Bulldoku level 549 guide (8×8). One pup per color, row and column, no touching. Difficulty 50.8.

Play Level 549

Step-by-step logic

  1. 1. Step: place pup (row 2, column 4)

    After crosses, the pink region has only one legal cell — row 2, column 4. Place a pup there. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 1
  2. 2. Step: place pup (row 6, column 1)

    After crosses, the lavender region has only one legal cell — row 6, column 1. Place a pup there. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 2
  3. 3. Step: mark X in row 7

    The green region is confined to row 7. Mark X on cells in that row that belong to other regions.

    Board after step 3
  4. 4. Step: mark X in row 7

    The green region is confined to row 7. Mark X on cells in that row that belong to other regions.

    Board after step 4
  5. 5. Step: mark X in row 7

    The green region is confined to row 7. Mark X on cells in that row that belong to other regions.

    Board after step 5
  6. 6. Step: logical elimination

    Placing a pup on the trial cell would leave a region with no legal move. Mark that cell with X.

    Board after step 6
  7. 7. Step: logical elimination

    Placing a pup on the trial cell would leave a region with no legal move. Mark that cell with X.

    Board after step 7
  8. 8. Step: logical elimination

    Placing a pup on the trial cell would leave a region with no legal move. Mark that cell with X.

    Board after step 8
  9. 9. Step: mark X in column 8

    The mint region is confined to column 8. Mark illegal cells with X.

    Board after step 9
  10. 10. Step: logical elimination

    Placing a pup on the trial cell would leave a region with no legal move. Mark that cell with X.

    Board after step 10
  11. 11. Step: place pup (row 1, column 2)

    After previous pups, row 1 has only one free cell — column 2. Place the cyan region's pup here. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 11
  12. 12. Step: place pup (row 4, column 3)

    After crosses, the yellow region has only one legal cell — row 4, column 3. Place a pup there. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 12
  13. 13. Step: mark X (line reservation)

    Several regions share the same rows or columns — other cells on those lines are impossible. Mark them with X.

    Board after step 13
  14. 14. Step: logical elimination

    Placing a pup on the trial cell would leave a region with no legal move. Mark that cell with X.

    Board after step 14
  15. 15. Step: logical elimination

    Placing a pup on the trial cell would leave a region with no legal move. Mark that cell with X.

    Board after step 15
  16. 16. Step: place pup (row 7, column 5)

    After previous pups, column 5 has only one free cell — row 7. Place the green region's pup here. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 16
  17. 17. Step: place pup (row 5, column 6)

    After previous pups, column 6 has only one free cell — row 5. Place the orange region's pup here. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 17
  18. 18. Step: place pup (row 3, column 8)

    After previous pups, row 3 has only one free cell — column 8. Place the mint region's pup here. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 18
  19. 19. Step: place pup (row 8, column 7)

    After previous pups, column 7 has only one free cell — row 8. Place the blue region's pup here. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 19

Final solution

All pups placed correctly: R1 C2, R2 C4, R3 C8, R4 C3, R5 C6, R6 C1, R7 C5, R8 C7

Solved board

Similar difficulty levels

FAQ

How do I solve Bulldoku level 549?
Follow the 19 steps above: find forced placements first, then mark impossible cells with X.
Where can I play level 549 online?
Click "Play Level 549" to open the free browser game with this exact board.