Meowdoku Level 504 Step-by-Step Logic Walkthrough & Explained
Follow the replay below. Each board shows the result after applying that step.
Meowdoku Level 504 Step 1: Place cat at R8 C5: only legal cell
Place a cat here at . The magenta region has no other legal cell.
Meowdoku Level 504 Step 2: Mark X at R4 C1, R4 C6, and R4 C7 + 2 more: a region is locked to this row
The green region must use row 4. No other region can use that row. Mark the highlighted cells with X.
Meowdoku Level 504 Step 3: Place cat at R5 C6: only legal cell
Place a cat here at . The sky blue region has no other legal cell.
Meowdoku Level 504 Step 4: Mark X at R2 C2, R2 C3, and R2 C8 + 1 more: rows or columns are reserved
The pink and blue regions must use rows 1 and 2. No other region can use those rows. Mark the highlighted cells with X.
Meowdoku Level 504 Step 5: Mark X at R3 C3, R3 C4, and R3 C7 + 2 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 504 Step 6: Mark X at R6 C9, R7 C8, and R7 C9: rows or columns are reserved
The yellow and purple regions must use rows 6 and 7. No other region can use those rows. Mark the highlighted cells with X.
Meowdoku Level 504 Step 7: Mark X at R6 C2, R6 C4, and R7 C2 + 4 more: rows or columns are reserved
The pink, teal, green, and purple regions must use columns 1, 2, 3, and 4. No other region can use those columns. Mark the highlighted cells with X.
Meowdoku Level 504 Step 8: Mark X at R2 C1 and R4 C2: 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 504 Step 9: Mark X at R1 C1: assuming a cat there leaves a region empty
Suppose held a cat in the pink region. That assumption would leave Row 7 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 504 Step 10: Mark X at R1 C2: assuming a cat there leaves a region empty
Suppose held a cat in the pink region. That assumption would leave Row 7 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 504 Step 11: Place cat at R3 C2: only legal cell
Place a cat here at . Column 2 has no other legal cell.
Meowdoku Level 504 Step 12: Place cat at R4 C4: only legal cell
Place a cat here at . The green region has no other legal cell.
Meowdoku Level 504 Step 13: Place cat at R1 C3: only legal cell
Place a cat here at . The pink region has no other legal cell.
Meowdoku Level 504 Step 14: Place cat at R2 C7: only legal cell
Place a cat here at . The blue region has no other legal cell.
Meowdoku Level 504 Step 15: Place cat at R6 C8: only legal cell
Place a cat here at . The yellow region has no other legal cell.
Meowdoku Level 504 Step 16: Place cat at R7 C1: only legal cell
Place a cat here at . The purple region has no other legal cell.
Meowdoku Level 504 Step 17: Place cat at R9 C9: only legal cell
Place a cat here at . The rose region has no other legal cell.
Meowdoku Level 504 Result
All 9 cats are placed correctly:
- R1 C3
- R2 C7
- R3 C2
- R4 C4
- R5 C6
- R6 C8
- R7 C1
- R8 C5
- R9 C9