Meowdoku Level 587 Step-by-Step Logic Walkthrough & Explained
Follow the replay below. Each board shows the result after applying that step.
Meowdoku Level 587 Step 1: Mark X at R1 C1, R1 C2, and R2 C1 + 6 more: rows or columns are reserved
The pink and orange regions must use columns 1 and 2. No other region can use those columns. Mark the highlighted cells with X.
Meowdoku Level 587 Step 2: Place cat at R8 C3: only legal cell
Place a cat here at . The magenta region has no other legal cell.
Meowdoku Level 587 Step 3: Mark X at R1 C4, R2 C4, and R4 C4 + 1 more: a region is locked to this column
The teal region must use column 4. No other region can use that column. Mark the highlighted cells with X.
Meowdoku Level 587 Step 4: Mark X at R2 C6: rows or columns are reserved
The green, pink, rose, teal, orange, and sky blue regions must use rows 2, 3, 4, 5, 6, and 7. No other region can use those rows. Mark the highlighted cells with X.
Meowdoku Level 587 Step 5: Mark X at R4 C2: 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 587 Step 6: Mark X at R4 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 587 Step 7: Mark X at R3 C6 and R7 C5: 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 587 Step 8: Mark X at R2 C8, R3 C8, and R4 C8 + 1 more: cats cannot touch
Every possible cat for row 7 conflicts with these cells. Cats cannot share a row, column, region, or diagonal touch. Mark the highlighted cells with X.
Meowdoku Level 587 Step 9: Mark X at R1 C8: a region is locked to this column
The sky blue region must use column 8. No other region can use that column. Mark the highlighted cells with X.
Meowdoku Level 587 Step 10: Mark X at R1 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 587 Step 11: Mark X at R3 C7, R4 C7, and R5 C7 + 1 more: cats cannot touch
Every possible cat for column 6 conflicts with these cells. Cats cannot share a row, column, region, or diagonal touch. Mark the highlighted cells with X.
Meowdoku Level 587 Step 12: Mark X at R1 C7: assuming a cat there leaves a region empty
Suppose held a cat in the yellow 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 587 Step 13: Place cat at R1 C5: only legal cell
Place a cat here at . The yellow region has no other legal cell.
Meowdoku Level 587 Step 14: Place cat at R4 C6: only legal cell
Place a cat here at . The rose region has no other legal cell.
Meowdoku Level 587 Step 15: Place cat at R2 C7: only legal cell
Place a cat here at . Row 2 has no other legal cell.
Meowdoku Level 587 Step 16: Place cat at R7 C8: only legal cell
Place a cat here at . Row 7 has no other legal cell.
Meowdoku Level 587 Step 17: Place cat at R6 C2: only legal cell
Place a cat here at . Row 6 has no other legal cell.
Meowdoku Level 587 Step 18: Place cat at R3 C1: only legal cell
Place a cat here at . The pink region has no other legal cell.
Meowdoku Level 587 Step 19: Place cat at R5 C4: only legal cell
Place a cat here at . The teal region has no other legal cell.
Meowdoku Level 587 Result
All 8 cats are placed correctly:
- R1 C5
- R2 C7
- R3 C1
- R4 C6
- R5 C4
- R6 C2
- R7 C8
- R8 C3