Bulldoku Level 256: Walkthrough & Solution
Step-by-step Bulldoku level 256 guide (5×5). One pup per color, row and column, no touching. Difficulty 36.1.
Play Level 256Step-by-step logic
1. Step: mark X in column 5
The orange region is confined to column 5. Mark illegal cells with X.
Board after step 1 2. Step: mark X in column 5
The orange region is confined to column 5. Mark illegal cells with X.
Board after step 2 3. Step: mark X in column 5
The orange region is confined to column 5. Mark illegal cells with X.
Board after step 3 4. Step: mark X in column 4
The mint region is confined to column 4. Mark illegal cells with X.
Board after step 4 5. Step: mark X in column 4
The mint region is confined to column 4. Mark illegal cells with X.
Board after step 5 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. 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. Step: place pup (row 1, column 3)
After previous pups, row 1 has only one free cell — column 3. Place the cyan region's pup here. Mark crosses along the row, column, and neighboring cells (see the board).
Board after step 8 9. Step: place pup (row 2, column 1)
After previous pups, row 2 has only one free cell — column 1. Place the pink region's pup here. Mark crosses along the row, column, and neighboring cells (see the board).
Board after step 9 10. Step: place pup (row 3, column 4)
After previous pups, row 3 has only one free cell — column 4. Place the mint region's pup here. Mark crosses along the row, column, and neighboring cells (see the board).
Board after step 10 11. Step: place pup (row 4, column 2)
After previous pups, row 4 has only one free cell — column 2. Place the yellow region's pup here. Mark crosses along the row, column, and neighboring cells (see the board).
Board after step 11 12. Step: place pup (row 5, column 5)
After previous pups, row 5 has only one free cell — column 5. Place the orange region's pup here. Mark crosses along the row, column, and neighboring cells (see the board).
Board after step 12
Final solution
All pups placed correctly: R1 C3, R2 C1, R3 C4, R4 C2, R5 C5
Similar difficulty levels
FAQ
- How do I solve Bulldoku level 256?
- Follow the 12 steps above: find forced placements first, then mark impossible cells with X.
- Where can I play level 256 online?
- Click "Play Level 256" to open the free browser game with this exact board.