Meowdoku Level 688 Step-by-Step Logic Walkthrough & Explained
Follow the replay below. Each board shows the result after applying that step.
Meowdoku Level 688 Step 1: Place cat at R6 C9: only legal cell
Place a cat here at . The purple region has no other legal cell.
Meowdoku Level 688 Step 2: Place cat at R9 C8: only legal cell
Place a cat here at . The rose region has no other legal cell.
Meowdoku Level 688 Step 3: Mark X at R1 C4, R1 C5, and R1 C6 + 1 more: a region is locked to this row
The magenta region must use row 1. No other region can use that row. Mark the highlighted cells with X.
Meowdoku Level 688 Step 4: Mark X at R2 C1, R2 C5, and R2 C6 + 1 more: a region is locked to this row
The green region must use row 2. No other region can use that row. Mark the highlighted cells with X.
Meowdoku Level 688 Step 5: Mark X at R4 C4, R4 C5, and R5 C4 + 2 more: rows or columns are reserved
The magenta, green, teal, pink, and brown regions must use columns 1, 2, 3, 4, and 5. No other region can use those columns. Mark the highlighted cells with X.
Meowdoku Level 688 Step 6: Mark X at R3 C6, R4 C6, and R8 C6: a region is locked to this column
The yellow region must use column 6. No other region can use that column. Mark the highlighted cells with X.
Meowdoku Level 688 Step 7: Mark X at R2 C2: 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 688 Step 8: Mark X at R1 C3, R3 C3, and R3 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 688 Step 9: Mark X at R4 C2, R5 C2, and R8 C2: rows or columns are reserved
The magenta and brown regions must use columns 1 and 2. No other region can use those columns. Mark the highlighted cells with X.
Meowdoku Level 688 Step 10: Mark X at R1 C1: assuming a cat there leaves a region empty
Suppose held a cat in the magenta 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 688 Step 11: Place cat at R1 C2: only legal cell
Place a cat here at . The magenta region has no other legal cell.
Meowdoku Level 688 Step 12: Place cat at R2 C4: only legal cell
Place a cat here at . The green region has no other legal cell.
Meowdoku Level 688 Step 13: Place cat at R7 C5: only legal cell
Place a cat here at . Column 5 has no other legal cell.
Meowdoku Level 688 Step 14: Place cat at R5 C6: only legal cell
Place a cat here at . The yellow region has no other legal cell.
Meowdoku Level 688 Step 15: Place cat at R3 C7: only legal cell
Place a cat here at . The light blue region has no other legal cell.
Meowdoku Level 688 Step 16: Place cat at R4 C3: only legal cell
Place a cat here at . The teal region has no other legal cell.
Meowdoku Level 688 Step 17: Place cat at R8 C1: only legal cell
Place a cat here at . The brown region has no other legal cell.
Meowdoku Level 688 Result
All 9 cats are placed correctly:
- R1 C2
- R2 C4
- R3 C7
- R4 C3
- R5 C6
- R6 C9
- R7 C5
- R8 C1
- R9 C8