Meowdoku Level 554 Step-by-Step Logic Walkthrough & Explained
Follow the replay below. Each board shows the result after applying that step.
Meowdoku Level 554 Step 1: Mark X at R1 C1, R2 C1, and R6 C1 + 3 more: a region is locked to this column
The teal region must use column 1. No other region can use that column. Mark the highlighted cells with X.
Meowdoku Level 554 Step 2: Mark X at R8 C2, R8 C3, and R8 C4 + 3 more: a region is locked to this row
The purple region must use row 8. No other region can use that row. Mark the highlighted cells with X.
Meowdoku Level 554 Step 3: Mark X at R9 C2, R9 C3, and R9 C4 + 3 more: a region is locked to this row
The magenta region must use row 9. No other region can use that row. Mark the highlighted cells with X.
Meowdoku Level 554 Step 4: Mark X at R1 C2, R2 C2, and R3 C2 + 1 more: a region is locked to this column
The yellow region must use column 2. No other region can use that column. Mark the highlighted cells with X.
Meowdoku Level 554 Step 5: Mark X at R1 C7, R1 C8, and R2 C7 + 8 more: rows or columns are reserved
The rose and magenta regions must use columns 7 and 8. No other region can use those columns. Mark the highlighted cells with X.
Meowdoku Level 554 Step 6: Place cat at R8 C6: only legal cell
Place a cat here at . The purple region has no other legal cell.
Meowdoku Level 554 Step 7: Place cat at R9 C8: only legal cell
Place a cat here at . The magenta region has no other legal cell.
Meowdoku Level 554 Step 8: Place cat at R6 C7: only legal cell
Place a cat here at . The rose region has no other legal cell.
Meowdoku Level 554 Step 9: Mark X at R3 C5 and R5 C5: rows or columns are reserved
The teal, brown, yellow, and green regions must use rows 3, 4, 5, and 7. No other region can use those rows. Mark the highlighted cells with X.
Meowdoku Level 554 Step 10: Mark X at R2 C3 and R2 C9: a region is locked to this row
The sky blue region must use row 2. No other region can use that row. Mark the highlighted cells with X.
Meowdoku Level 554 Step 11: Mark X at R1 C4, R1 C5, and R3 C4: 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 554 Step 12: Mark X at R4 C2: 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 554 Step 13: Place cat at R5 C2: only legal cell
Place a cat here at . The yellow region has no other legal cell.
Meowdoku Level 554 Step 14: Place cat at R3 C1: only legal cell
Place a cat here at . The teal region has no other legal cell.
Meowdoku Level 554 Step 15: Mark X at R1 C9: assuming a cat there leaves a region empty
Suppose held a cat in the pink region. That assumption would leave Column 3 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 554 Step 16: Place cat at R1 C3: only legal cell
Place a cat here at . The pink region has no other legal cell.
Meowdoku Level 554 Step 17: Place cat at R2 C5: only legal cell
Place a cat here at . The sky blue region has no other legal cell.
Meowdoku Level 554 Step 18: Place cat at R4 C4: only legal cell
Place a cat here at . The brown region has no other legal cell.
Meowdoku Level 554 Step 19: Place cat at R7 C9: only legal cell
Place a cat here at . The green region has no other legal cell.
Meowdoku Level 554 Result
All 9 cats are placed correctly:
- R1 C3
- R2 C5
- R3 C1
- R4 C4
- R5 C2
- R6 C7
- R7 C9
- R8 C6
- R9 C8