Bulldoku Level 505: Walkthrough & Solution
Step-by-step Bulldoku level 505 guide (9×9). One pup per color, row and column, no touching. Difficulty 48.8.
Play Level 505Step-by-step logic
1. 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 1 2. Step: place pup (row 1, column 1)
After crosses, the cyan region has only one legal cell — row 1, column 1. Place a pup there. Mark crosses along the row, column, and neighboring cells (see the board).
Board after step 2 3. Step: place pup (row 9, column 2)
After crosses, the coral region has only one legal cell — row 9, column 2. Place a pup there. Mark crosses along the row, column, and neighboring cells (see the board).
Board after step 3 4. Step: place pup (row 6, column 3)
After crosses, the lavender region has only one legal cell — row 6, column 3. Place a pup there. Mark crosses along the row, column, and neighboring cells (see the board).
Board after step 4 5. Step: place pup (row 4, column 4)
After crosses, the yellow region has only one legal cell — row 4, column 4. Place a pup there. Mark crosses along the row, column, and neighboring cells (see the board).
Board after step 5 6. Step: place pup (row 3, column 6)
After previous pups, row 3 has only one free cell — column 6. Place the mint region's pup here. Mark crosses along the row, column, and neighboring cells (see the board).
Board after step 6 7. Step: place pup (row 5, column 9)
After crosses, the orange region has only one legal cell — row 5, column 9. Place a pup there. Mark crosses along the row, column, and neighboring cells (see the board).
Board after step 7 8. Step: place pup (row 7, column 5)
After crosses, the green region has only one legal cell — row 7, column 5. Place a pup there. Mark crosses along the row, column, and neighboring cells (see the board).
Board after step 8 9. 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 9
Final solution
All pups placed correctly: R1 C1, R2 C8, R3 C6, R4 C4, R5 C9, R6 C3, R7 C5, R8 C7, R9 C2
Similar difficulty levels
FAQ
- How do I solve Bulldoku level 505?
- Follow the 9 steps above: find forced placements first, then mark impossible cells with X.
- Where can I play level 505 online?
- Click "Play Level 505" to open the free browser game with this exact board.