Bulldoku Level 398: Walkthrough & Solution

Step-by-step Bulldoku level 398 guide (8×8). One pup per color, row and column, no touching. Difficulty 43.6.

Play Level 398

Step-by-step logic

  1. 1. Step: place pup (row 7, column 2)

    After crosses, the green region has only one legal cell — row 7, column 2. 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 5, column 3)

    After crosses, the orange region has only one legal cell — row 5, column 3. Place a pup there. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 2
  3. 3. Step: place pup (row 8, column 4)

    After crosses, the blue region has only one legal cell — row 8, column 4. Place a pup there. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 3
  4. 4. Step: mark X in column 1

    The mint region is confined to column 1. Mark illegal cells with X.

    Board after step 4
  5. 5. Step: mark X in column 1

    The mint region is confined to column 1. Mark illegal cells with X.

    Board after step 5
  6. 6. Step: mark X in row 6

    The lavender region is confined to row 6. Mark X on cells in that row that belong to other regions.

    Board after step 6
  7. 7. Step: mark X in column 6

    The yellow region is confined to column 6. Mark illegal cells with X.

    Board after step 7
  8. 8. Step: mark X in column 6

    The yellow region is confined to column 6. Mark illegal cells with X.

    Board after step 8
  9. 9. Step: mark X in column 6

    The yellow region is confined to column 6. Mark illegal cells with X.

    Board after step 9
  10. 10. Step: mark X in row 6

    The lavender region is confined to row 6. Mark X on cells in that row that belong to other regions.

    Board after step 10
  11. 11. Step: place pup (row 4, column 6)

    After crosses, the yellow region has only one legal cell — row 4, column 6. Place a pup there. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 11
  12. 12. Step: place pup (row 3, column 1)

    After previous pups, column 1 has only one free cell — row 3. Place the mint region's pup here. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 12
  13. 13. Step: place pup (row 2, column 8)

    After crosses, the pink region has only one legal cell — row 2, column 8. Place a pup there. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 13
  14. 14. Step: place pup (row 1, column 5)

    After previous pups, row 1 has only one free cell — column 5. Place the cyan region's pup here. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 14
  15. 15. Step: place pup (row 6, column 7)

    After previous pups, row 6 has only one free cell — column 7. Place the lavender region's pup here. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 15

Final solution

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

Solved board

Similar difficulty levels

FAQ

How do I solve Bulldoku level 398?
Follow the 15 steps above: find forced placements first, then mark impossible cells with X.
Where can I play level 398 online?
Click "Play Level 398" to open the free browser game with this exact board.