Meowdoku Level 686 Step-by-Step Logic Walkthrough & Explained
Follow the replay below. Each board shows the result after applying that step.
Meowdoku Level 686 Step 1: Mark X at R3 C7, R4 C7, and R5 C7 + 2 more: a region is locked to this column
The pink region must use column 7. No other region can use that column. Mark the highlighted cells with X.
Meowdoku Level 686 Step 2: Mark X at R2 C1, R2 C2, and R2 C6 + 1 more: a region is locked to this row
The green region must use row 2. No other region can use that row. Mark the highlighted cells with X.
Meowdoku Level 686 Step 3: Place cat at R1 C7: only legal cell
Place a cat here at . The pink region has no other legal cell.
Meowdoku Level 686 Step 4: Mark X at R3 C1, R3 C2, and R3 C3 + 1 more: a region is locked to this row
The teal region must use row 3. No other region can use that row. Mark the highlighted cells with X.
Meowdoku Level 686 Step 5: Mark X at R2 C5, R4 C5, and R4 C6: cats cannot touch
Every possible cat for the teal region conflicts with these cells. Cats cannot share a row, column, region, or diagonal touch. Mark the highlighted cells with X.
Meowdoku Level 686 Step 6: Mark X at R4 C3 and R5 C1: cats cannot touch
Every possible cat for the rose region conflicts with these cells. Cats cannot share a row, column, region, or diagonal touch. Mark the highlighted cells with X.
Meowdoku Level 686 Step 7: Mark X at R5 C5 and R6 C4: cats cannot touch
Every possible cat for the brown region conflicts with these cells. Cats cannot share a row, column, region, or diagonal touch. Mark the highlighted cells with X.
Meowdoku Level 686 Step 8: Mark X at R7 C2: cats cannot touch
Every possible cat for the sky blue region conflicts with these cells. Cats cannot share a row, column, region, or diagonal touch. Mark the highlighted cells with X.
Meowdoku Level 686 Step 9: Mark X at R6 C3: rows or columns are reserved
The green, teal, magenta, and brown regions must use columns 3, 4, 5, and 6. No other region can use those columns. Mark the highlighted cells with X.
Meowdoku Level 686 Step 10: Mark X at R5 C3: cats cannot touch
Every possible cat for column 2 conflicts with these cells. Cats cannot share a row, column, region, or diagonal touch. Mark the highlighted cells with X.
Meowdoku Level 686 Step 11: Mark X at R2 C4: assuming a cat there leaves a region empty
Suppose held a cat in the green region. That assumption would leave the sky blue region with no legal cell left. So cannot contain a cat. Mark it with X.
Try a temporary cat at , then follow what the puzzle rules force. If it leads to a contradiction, the must be X in the real puzzle.
Meowdoku Level 686 Step 12: Place cat at R2 C3: only legal cell
Place a cat here at . The green region has no other legal cell.
Meowdoku Level 686 Step 13: Mark X at R6 C5: cats cannot touch
Every possible cat for the magenta region conflicts with these cells. Cats cannot share a row, column, region, or diagonal touch. Mark the highlighted cells with X.
Meowdoku Level 686 Step 14: Mark X at R3 C6: assuming a cat there leaves a region empty
Suppose held a cat in the teal region. That assumption would leave the sky blue region with no legal cell left. So cannot contain a cat. Mark it with X.
Try a temporary cat at , then follow what the puzzle rules force. If it leads to a contradiction, the must be X in the real puzzle.
Meowdoku Level 686 Step 15: Place cat at R3 C5: only legal cell
Place a cat here at . The teal region has no other legal cell.
Meowdoku Level 686 Step 16: Place cat at R6 C6: only legal cell
Place a cat here at . The brown region has no other legal cell.
Meowdoku Level 686 Step 17: Place cat at R7 C1: only legal cell
Place a cat here at . The sky blue region has no other legal cell.
Meowdoku Level 686 Step 18: Place cat at R5 C4: only legal cell
Place a cat here at . The magenta region has no other legal cell.
Meowdoku Level 686 Step 19: Place cat at R4 C2: only legal cell
Place a cat here at . The rose region has no other legal cell.
Meowdoku Level 686 Result
All 7 cats are placed correctly:
- R1 C7
- R2 C3
- R3 C5
- R4 C2
- R5 C4
- R6 C6
- R7 C1