Meowdoku Level 645 Step-by-Step Logic Walkthrough & Explained
Follow the replay below. Each board shows the result after applying that step.
Meowdoku Level 645 Step 1: Place cat at R10 C10: only legal cell
Place a cat here at . The pink region has no other legal cell.
Meowdoku Level 645 Step 2: Place cat at R1 C1: only legal cell
Place a cat here at . The blue region has no other legal cell.
Meowdoku Level 645 Step 3: Mark X at R2 C7, R3 C7, and R4 C7 + 3 more: a region is locked to this column
The sky blue region must use column 7. No other region can use that column. Mark the highlighted cells with X.
Meowdoku Level 645 Step 4: Mark X at R6 C6, R6 C8, and R7 C6 + 1 more: 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 645 Step 5: Mark X at R5 C6, R7 C5, and R8 C5 + 1 more: 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 645 Step 6: Mark X at R2 C8, R2 C9, and R8 C9 + 1 more: rows or columns are reserved
The yellow and teal regions must use columns 8 and 9. No other region can use those columns. Mark the highlighted cells with X.
Meowdoku Level 645 Step 7: Mark X at R4 C8: 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 645 Step 8: Mark X at R5 C9: rows or columns are reserved
The green, purple, sky blue, rose, and yellow regions must use rows 5, 6, 7, 8, and 9. No other region can use those rows. Mark the highlighted cells with X.
Meowdoku Level 645 Step 9: Mark X at R3 C4 and R4 C6: cats cannot touch
Every possible cat for row 2 conflicts with these cells. Cats cannot share a row, column, region, or diagonal touch. Mark the highlighted cells with X.
Meowdoku Level 645 Step 10: Mark X at R5 C2: assuming a cat there leaves a region empty
Suppose held a cat in the green 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 645 Step 11: Mark X at R5 C3: assuming a cat there leaves a region empty
Suppose held a cat in the green region. That assumption would leave Row 9 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 645 Step 12: Mark X at R5 C4: assuming a cat there leaves a region empty
Suppose held a cat in the green region. That assumption would leave Row 9 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 645 Step 13: Mark X at R5 C5: assuming a cat there leaves a region empty
Suppose held a cat in the green region. That assumption would leave Row 9 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 645 Step 14: Place cat at R5 C8: only legal cell
Place a cat here at . Row 5 has no other legal cell.
Meowdoku Level 645 Step 15: Place cat at R7 C7: only legal cell
Place a cat here at . The sky blue region has no other legal cell.
Meowdoku Level 645 Step 16: Place cat at R6 C5: only legal cell
Place a cat here at . The rose region has no other legal cell.
Meowdoku Level 645 Step 17: Place cat at R3 C9: only legal cell
Place a cat here at . The teal region has no other legal cell.
Meowdoku Level 645 Step 18: Place cat at R2 C6: only legal cell
Place a cat here at . The brown region has no other legal cell.
Meowdoku Level 645 Step 19: Place cat at R8 C4: only legal cell
Place a cat here at . The purple region has no other legal cell.
Meowdoku Level 645 Step 20: Place cat at R9 C2: only legal cell
Place a cat here at . The green region has no other legal cell.
Meowdoku Level 645 Step 21: Place cat at R4 C3: only legal cell
Place a cat here at . The magenta region has no other legal cell.
Meowdoku Level 645 Result
All 10 cats are placed correctly:
- R1 C1
- R2 C6
- R3 C9
- R4 C3
- R5 C8
- R6 C5
- R7 C7
- R8 C4
- R9 C2
- R10 C10