Pipe Puzzle 4×4 — Set 35
Pipe Puzzle: 4x4 Grid #35
Show solution
[{"label":"A1","fromRotation":90,"toRotation":0,"rotateBy":270,"description":"Rotate tile A1 (Elbow (\u2514)) 270\u00b0 clockwise."},{"label":"A3","fromRotation":270,"toRotation":90,"rotateBy":180,"description":"Rotate tile A3 (Elbow (\u2514)) 180\u00b0 clockwise."},{"label":"B1","fromRotation":180,"toRotation":90,"rotateBy":270,"description":"Rotate tile B1 (Straight (\u2500)) 270\u00b0 clockwise."},{"label":"C1","fromRotation":0,"toRotation":270,"rotateBy":270,"description":"Rotate tile C1 (Elbow (\u2514)) 270\u00b0 clockwise."},{"label":"C3","fromRotation":90,"toRotation":180,"rotateBy":90,"description":"Rotate tile C3 (Elbow (\u2514)) 90\u00b0 clockwise."},{"label":"D3","fromRotation":0,"toRotation":270,"rotateBy":270,"description":"Rotate tile D3 (Elbow (\u2514)) 270\u00b0 clockwise."}]
- Title
- Pipe Puzzle: 4x4 Grid #35
- Grid
- [{"type":"elbow","rotation":90,"label":"A1","isFixed":false},{"type":"straight","rotation":0,"label":"A2","isFixed":true},{"type":"elbow","rotation":270,"label":"A3","isFixed":false},{"type":"empty","rotation":0,"label":"A4","isFixed":true}]
- [{"type":"straight","rotation":180,"label":"B1","isFixed":false},{"type":"empty","rotation":0,"label":"B2","isFixed":true},{"type":"straight","rotation":90,"label":"B3","isFixed":true},{"type":"empty","rotation":0,"label":"B4","isFixed":true}]
- [{"type":"elbow","rotation":0,"label":"C1","isFixed":false},{"type":"straight","rotation":0,"label":"C2","isFixed":true},{"type":"elbow","rotation":90,"label":"C3","isFixed":false},{"type":"empty","rotation":0,"label":"C4","isFixed":true}]
- [{"type":"empty","rotation":0,"label":"D1","isFixed":true},{"type":"empty","rotation":0,"label":"D2","isFixed":true},{"type":"elbow","rotation":0,"label":"D3","isFixed":false},{"type":"end","rotation":0,"label":"D4","isFixed":true}]
- Source
- Row: 0Col: 0
- Sink
- Row: 3Col: 3
- Solution
- {"label":"A1","fromRotation":90,"toRotation":0,"rotateBy":270,"description":"Rotate tile A1 (Elbow (\u2514)) 270\u00b0 clockwise."}
- {"label":"A3","fromRotation":270,"toRotation":90,"rotateBy":180,"description":"Rotate tile A3 (Elbow (\u2514)) 180\u00b0 clockwise."}
- {"label":"B1","fromRotation":180,"toRotation":90,"rotateBy":270,"description":"Rotate tile B1 (Straight (\u2500)) 270\u00b0 clockwise."}
- {"label":"C1","fromRotation":0,"toRotation":270,"rotateBy":270,"description":"Rotate tile C1 (Elbow (\u2514)) 270\u00b0 clockwise."}
- {"label":"C3","fromRotation":90,"toRotation":180,"rotateBy":90,"description":"Rotate tile C3 (Elbow (\u2514)) 90\u00b0 clockwise."}
- {"label":"D3","fromRotation":0,"toRotation":270,"rotateBy":270,"description":"Rotate tile D3 (Elbow (\u2514)) 270\u00b0 clockwise."}
- Question
- Rotate the pipe tiles (marked with labels) so that water flows continuously from the SOURCE tile to the SINK tile. For each tile that needs rotating, write: tile label, direction (CW = clockwise, CCW = counter-clockwise), and degrees.
- TileTypes
- {"type":"straight","description":"Straight (\u2500)"}
- {"type":"elbow","description":"Elbow (\u2514)"}
- {"type":"T","description":"T-shape (\u252c)"}
- {"type":"cross","description":"Cross (+)"}
- {"type":"end","description":"End cap (\u2574)"}
- Hint
- Work outward from both ends (SOURCE and SINK) simultaneously to meet in the middle.