Meowdoku Level 840 Step-by-Step Logic Walkthrough & Explained
Follow the replay below. Each board shows the result after applying that step.
Meowdoku Level 840 Step 1: Mark X at R1 C2, R2 C2, and R3 C2 + 4 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 840 Step 2: Mark X at R1 C3, R2 C3, and R3 C3 + 5 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 840 Step 3: Mark X at R1 C4, R2 C4, and R3 C4 + 3 more: a region is locked to this column
The light blue region must use column 4. No other region can use that column. Mark the highlighted cells with X.
Meowdoku Level 840 Step 4: Mark X at R1 C1, R2 C1, and R2 C6 + 1 more: rows or columns are reserved
The green and pink regions must use rows 1 and 2. No other region can use those rows. Mark the highlighted cells with X.
Meowdoku Level 840 Step 5: Mark X at R3 C1, R4 C1, and R4 C4 + 1 more: rows or columns are reserved
The teal and rose regions must use rows 3 and 4. No other region can use those rows. Mark the highlighted cells with X.
Meowdoku Level 840 Step 6: Mark X at R1 C7, R4 C7, and R5 C6 + 8 more: rows or columns are reserved
The pink, teal, and orange regions must use columns 5, 6, and 7. No other region can use those columns. Mark the highlighted cells with X.
Meowdoku Level 840 Step 7: Mark X at R6 C8, R7 C8, and R7 C10 + 9 more: rows or columns are reserved
The green, rose, and magenta regions must use columns 8, 9, and 10. No other region can use those columns. Mark the highlighted cells with X.
Meowdoku Level 840 Step 8: Mark X at R6 C5: cats cannot touch
Every possible cat for the light blue region conflicts with these cells. Cats cannot share a row, column, region, or diagonal touch. Mark the highlighted cells with X.
Meowdoku Level 840 Step 9: Mark X at R7 C1: cats cannot touch
Every possible cat for the purple region conflicts with these cells. Cats cannot share a row, column, region, or diagonal touch. Mark the highlighted cells with X.
Meowdoku Level 840 Step 10: Mark X at R1 C9: assuming a cat there leaves a region empty
Suppose held a cat in the green region. That assumption would leave the purple 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 840 Step 11: Mark X at R1 C10: assuming a cat there leaves a region empty
Suppose held a cat in the green region. That assumption would leave the purple 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 840 Step 12: Mark X at R2 C8: assuming a cat there leaves a region empty
Suppose held a cat in the green region. That assumption would leave the purple 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 840 Step 13: Mark X at R2 C9: assuming a cat there leaves a region empty
Suppose held a cat in the green region. That assumption would leave the purple 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 840 Step 14: Mark X at R2 C10: assuming a cat there leaves a region empty
Suppose held a cat in the green region. That assumption would leave the purple 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 840 Step 15: Place cat at R1 C8: only legal cell
Place a cat here at . The green region has no other legal cell.
Meowdoku Level 840 Step 16: Place cat at R2 C5: only legal cell
Place a cat here at . The pink region has no other legal cell.
Meowdoku Level 840 Step 17: Mark X at R7 C2 and R9 C1: cats cannot touch
Every possible cat for row 8 conflicts with these cells. Cats cannot share a row, column, region, or diagonal touch. Mark the highlighted cells with X.
Meowdoku Level 840 Step 18: Mark X at R4 C6: assuming a cat there leaves a region empty
Suppose held a cat in the teal region. That assumption would leave the yellow 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 840 Step 19: Place cat at R3 C7: only legal cell
Place a cat here at . The teal region has no other legal cell.
Meowdoku Level 840 Step 20: Place cat at R4 C9: only legal cell
Place a cat here at . The rose region has no other legal cell.
Meowdoku Level 840 Step 21: Place cat at R6 C10: only legal cell
Place a cat here at . The magenta region has no other legal cell.
Meowdoku Level 840 Step 22: Place cat at R8 C2: only legal cell
Place a cat here at . The purple region has no other legal cell.
Meowdoku Level 840 Step 23: Place cat at R10 C3: only legal cell
Place a cat here at . The yellow region has no other legal cell.
Meowdoku Level 840 Step 24: Place cat at R5 C1: only legal cell
Place a cat here at . The brown region has no other legal cell.
Meowdoku Level 840 Step 25: Place cat at R7 C4: only legal cell
Place a cat here at . The light blue region has no other legal cell.
Meowdoku Level 840 Step 26: Place cat at R9 C6: only legal cell
Place a cat here at . The orange region has no other legal cell.
Meowdoku Level 840 Result
All 10 cats are placed correctly:
- R1 C8
- R2 C5
- R3 C7
- R4 C9
- R5 C1
- R6 C10
- R7 C4
- R8 C2
- R9 C6
- R10 C3