Meowdoku Level 819 Step-by-Step Logic Walkthrough & Explained
Follow the replay below. Each board shows the result after applying that step.
Meowdoku Level 819 Step 1: Mark X at R1 C1, R1 C2, and R1 C3 + 2 more: a region is locked to this row
The brown region must use row 1. No other region can use that row. Mark the highlighted cells with X.
Meowdoku Level 819 Step 2: Mark X at R2 C3, R3 C3, and R7 C3 + 1 more: a region is locked to this column
The green region must use column 3. No other region can use that column. Mark the highlighted cells with X.
Meowdoku Level 819 Step 3: Mark X at R2 C2, R5 C2, and R6 C2 + 1 more: rows or columns are reserved
The brown, yellow, pink, magenta, teal, and rose regions must use columns 2, 4, 5, 6, 7, and 8. No other region can use those columns. Mark the highlighted cells with X.
Meowdoku Level 819 Step 4: Mark X at R2 C7: 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 819 Step 5: Mark X at R1 C8, R4 C8, and R5 C8 + 3 more: a region is locked to this column
The pink region must use column 8. No other region can use that column. Mark the highlighted cells with X.
Meowdoku Level 819 Step 6: Mark X at R2 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 819 Step 7: Mark X at R3 C5: cats cannot touch
Every possible cat for the yellow region conflicts with these cells. Cats cannot share a row, column, region, or diagonal touch. Mark the highlighted cells with X.
Meowdoku Level 819 Step 8: Mark X at R3 C7: cats cannot touch
Every possible cat for the pink region conflicts with these cells. Cats cannot share a row, column, region, or diagonal touch. Mark the highlighted cells with X.
Meowdoku Level 819 Step 9: Mark X at R5 C4: cats cannot touch
Every possible cat for the green region conflicts with these cells. Cats cannot share a row, column, region, or diagonal touch. Mark the highlighted cells with X.
Meowdoku Level 819 Step 10: Mark X at R7 C5: 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 819 Step 11: Mark X at R1 C6: assuming a cat there leaves a region empty
Suppose held a cat in the brown 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 819 Step 12: Place cat at R1 C7: only legal cell
Place a cat here at . The brown region has no other legal cell.
Meowdoku Level 819 Step 13: Place cat at R3 C8: only legal cell
Place a cat here at . The pink region has no other legal cell.
Meowdoku Level 819 Step 14: Mark X at R4 C6 and R6 C5: 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 819 Step 15: Mark X at R2 C1: a region is locked to this row
The yellow region must use row 2. No other region can use that row. Mark the highlighted cells with X.
Meowdoku Level 819 Step 16: Mark X at R2 C4: assuming a cat there leaves a region empty
Suppose held a cat in the yellow 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 819 Step 17: Place cat at R2 C5: only legal cell
Place a cat here at . The yellow region has no other legal cell.
Meowdoku Level 819 Step 18: Mark X at R6 C6 and R8 C6: a region is locked to this column
The teal region must use column 6. No other region can use that column. Mark the highlighted cells with X.
Meowdoku Level 819 Step 19: Mark X at R5 C3: 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 819 Step 20: Mark X at R4 C1 and R6 C1: rows or columns are reserved
The magenta and green regions must use rows 4 and 6. No other region can use those rows. Mark the highlighted cells with X.
Meowdoku Level 819 Step 21: Mark X at R7 C4: cats cannot touch
Every possible cat for row 6 conflicts with these cells. Cats cannot share a row, column, region, or diagonal touch. Mark the highlighted cells with X.
Meowdoku Level 819 Step 22: Mark X at R8 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 819 Step 23: Place cat at R8 C4: only legal cell
Place a cat here at . Row 8 has no other legal cell.
Meowdoku Level 819 Step 24: Place cat at R4 C2: only legal cell
Place a cat here at . The magenta region has no other legal cell.
Meowdoku Level 819 Step 25: Place cat at R6 C3: only legal cell
Place a cat here at . The green region has no other legal cell.
Meowdoku Level 819 Step 26: Place cat at R7 C1: only legal cell
Place a cat here at . The sky blue region has no other legal cell.
Meowdoku Level 819 Step 27: Place cat at R5 C6: only legal cell
Place a cat here at . The teal region has no other legal cell.
Meowdoku Level 819 Result
All 8 cats are placed correctly:
- R1 C7
- R2 C5
- R3 C8
- R4 C2
- R5 C6
- R6 C3
- R7 C1
- R8 C4