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8×8 · 8 steps · difficulty 39.1

Bulldoku Level 310: Walkthrough & Solution

Step-by-step Bulldoku level 310 guide (8×8). One pup per color, row and column, no touching. Difficulty 39.1.

Play Level 310

Step-by-step logic

  1. 1. 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 1

  2. 2. Step: place pup (row 5, column 7)

    After crosses, the orange region has only one legal cell — row 5, column 7. 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 6, column 4)

    After crosses, the lavender region has only one legal cell — row 6, 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: place pup (row 8, column 1)

    After crosses, the blue region has only one legal cell — row 8, column 1. Place a pup there. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 4

  5. 5. Step: place pup (row 7, column 6)

    After crosses, the green region has only one legal cell — row 7, column 6. Place a pup there. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 5

  6. 6. Step: place pup (row 2, column 5)

    After crosses, the pink region has only one legal cell — row 2, column 5. Place a pup there. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 6

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

    After crosses, the cyan region has only one legal cell — row 1, column 2. Place a pup there. Mark crosses along the row, column, and neighboring cells (see the board).

    Board after step 7

  8. 8. 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 8

Final solution

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

Solved board

Similar difficulty levels

FAQ

How do I solve Bulldoku level 310?
Follow the 8 steps above: find forced placements first, then mark impossible cells with X.
Where can I play level 310 online?
Click "Play Level 310" to open the free browser game with this exact board.

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