Meowdoku Level 831 Step-by-Step Logic Walkthrough & Explained
Follow the replay below. Each board shows the result after applying that step.
Meowdoku Level 831 Step 1: Mark X at R1 C5, R2 C5, and R3 C5 + 2 more: a region is locked to this column
The magenta region must use column 5. No other region can use that column. Mark the highlighted cells with X.
Meowdoku Level 831 Step 2: Mark X at R1 C6, R6 C6, and R7 C6: a region is locked to this column
The orange region must use column 6. No other region can use that column. Mark the highlighted cells with X.
Meowdoku Level 831 Step 3: Mark X at R1 C2, R2 C2, and R3 C2 + 1 more: a region is locked to this column
The purple region must use column 2. No other region can use that column. Mark the highlighted cells with X.
Meowdoku Level 831 Step 4: Mark X at R1 C3, R7 C3, and R7 C4 + 1 more: rows or columns are reserved
The green, brown, and teal regions must use columns 3, 4, and 7. No other region can use those columns. Mark the highlighted cells with X.
Meowdoku Level 831 Step 5: Place cat at R7 C1: only legal cell
Place a cat here at . Row 7 has no other legal cell.
Meowdoku Level 831 Step 6: Mark X at R4 C3, R4 C4, and R4 C6 + 5 more: rows or columns are reserved
The magenta and purple regions must use rows 4 and 5. No other region can use those rows. Mark the highlighted cells with X.
Meowdoku Level 831 Step 7: Mark X at R2 C4, R2 C7, and R3 C7: rows or columns are reserved
The orange and brown regions must use rows 2 and 3. No other region can use those rows. Mark the highlighted cells with X.
Meowdoku Level 831 Step 8: Mark X at R1 C7: assuming a cat there leaves a region empty
Suppose held a cat in the green region. That assumption would leave the teal 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 831 Step 9: Place cat at R1 C4: only legal cell
Place a cat here at . The green region has no other legal cell.
Meowdoku Level 831 Step 10: Place cat at R3 C3: only legal cell
Place a cat here at . The brown region has no other legal cell.
Meowdoku Level 831 Step 11: Place cat at R2 C6: only legal cell
Place a cat here at . The orange region has no other legal cell.
Meowdoku Level 831 Step 12: Place cat at R5 C2: only legal cell
Place a cat here at . The purple region has no other legal cell.
Meowdoku Level 831 Step 13: Place cat at R4 C5: only legal cell
Place a cat here at . The magenta region has no other legal cell.
Meowdoku Level 831 Step 14: Place cat at R6 C7: only legal cell
Place a cat here at . The teal region has no other legal cell.
Meowdoku Level 831 Result
All 7 cats are placed correctly:
- R1 C4
- R2 C6
- R3 C3
- R4 C5
- R5 C2
- R6 C7
- R7 C1