Bulldoku Level 290: Walkthrough & Solution
Step-by-step Bulldoku level 290 guide (7×7). One pup per color, row and column, no touching. Difficulty 37.7.
Play Level 290Step-by-step logic
1. Step: place pup (row 1, column 7)
After crosses, the cyan region has only one legal cell — row 1, column 7. 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 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 2 3. Step: place pup (row 5, column 6)
After crosses, the orange region has only one legal cell — row 5, column 6. 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 4)
After previous pups, row 6 has only one free cell — column 4. Place the lavender region's pup here. Mark crosses along the row, column, and neighboring cells (see the board).
Board after step 4 5. 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 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: place pup (row 2, column 5)
After previous pups, row 2 has only one free cell — column 5. Place the pink region's pup here. Mark crosses along the row, column, and neighboring cells (see the board).
Board after step 7 8. Step: place pup (row 3, column 1)
After previous pups, row 3 has only one free cell — column 1. Place the mint 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 4, column 3)
After previous pups, column 3 has only one free cell — row 4. Place the yellow 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 C7, R2 C5, R3 C1, R4 C3, R5 C6, R7 C2, R6 C4
Similar difficulty levels
FAQ
- How do I solve Bulldoku level 290?
- Follow the 9 steps above: find forced placements first, then mark impossible cells with X.
- Where can I play level 290 online?
- Click "Play Level 290" to open the free browser game with this exact board.