Meowdoku Level 828 Step-by-Step Logic Walkthrough & Explained
Follow the replay below. Each board shows the result after applying that step.
Meowdoku Level 828 Step 1: Place cat at R2 C1: only legal cell
Place a cat here at . The blue region has no other legal cell.
Meowdoku Level 828 Step 2: Mark X at R1 C9: a region is locked to this row
The pink region must use row 1. No other region can use that row. Mark the highlighted cells with X.
Meowdoku Level 828 Step 3: Mark X at R1 C3, R3 C3, and R4 C3 + 3 more: a region is locked to this column
The yellow region must use column 3. No other region can use that column. Mark the highlighted cells with X.
Meowdoku Level 828 Step 4: Mark X at R5 C2, R6 C2, and R7 C2 + 1 more: a region is locked to this column
The orange region must use column 2. No other region can use that column. Mark the highlighted cells with X.
Meowdoku Level 828 Step 5: Mark X at R4 C2, R4 C6, and R4 C7 + 2 more: a region is locked to this row
The sky blue region must use row 4. No other region can use that row. Mark the highlighted cells with X.
Meowdoku Level 828 Step 6: Place cat at R8 C2: only legal cell
Place a cat here at . The orange region has no other legal cell.
Meowdoku Level 828 Step 7: Place cat at R6 C3: only legal cell
Place a cat here at . The yellow region has no other legal cell.
Meowdoku Level 828 Step 8: Mark X at R1 C4, R1 C5, and R1 C6 + 3 more: rows or columns are reserved
The sky blue, brown, magenta, and green regions must use columns 4, 5, 6, and 7. No other region can use those columns. Mark the highlighted cells with X.
Meowdoku Level 828 Step 9: Place cat at R1 C8: only legal cell
Place a cat here at . The pink region has no other legal cell.
Meowdoku Level 828 Step 10: Mark X at R3 C4, R3 C5, and R5 C5: 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 828 Step 11: Mark X at R5 C6: 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 828 Step 12: Mark X at R9 C5: rows or columns are reserved
The sky blue and magenta regions must use columns 4 and 5. No other region can use those columns. Mark the highlighted cells with X.
Meowdoku Level 828 Step 13: Mark X at R7 C6, R7 C9, and R9 C9: rows or columns are reserved
The magenta and green regions must use rows 7 and 9. No other region can use those rows. Mark the highlighted cells with X.
Meowdoku Level 828 Step 14: Mark X at R5 C9: assuming a cat there leaves a region empty
Suppose held a cat in the teal region. That assumption would leave the brown 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 828 Step 15: Place cat at R3 C9: only legal cell
Place a cat here at . The teal region has no other legal cell.
Meowdoku Level 828 Step 16: Place cat at R5 C7: only legal cell
Place a cat here at . The brown region has no other legal cell.
Meowdoku Level 828 Step 17: Place cat at R9 C6: only legal cell
Place a cat here at . The green region has no other legal cell.
Meowdoku Level 828 Step 18: Place cat at R7 C5: only legal cell
Place a cat here at . The magenta region has no other legal cell.
Meowdoku Level 828 Step 19: Place cat at R4 C4: only legal cell
Place a cat here at . The sky blue region has no other legal cell.
Meowdoku Level 828 Result
All 9 cats are placed correctly:
- R1 C8
- R2 C1
- R3 C9
- R4 C4
- R5 C7
- R6 C3
- R7 C5
- R8 C2
- R9 C6