Game guide · DIAOYULEQU
An introduction to playing Water Jug Puzzle
The board gives you the information needed for the next action. Measure the target number of litres using two unmarked jugs and only filling, emptying and pouring. Try the rule on the board, then read the next instruction. Choose one of six capacity-and-target puzzles. Both jugs begin empty. Try the rule on the board, then read the next instruction.
Six verified solvable capacity puzzles, with undo and move count. These are six levels of one game, not six separate games.
An idea for your next attempt
A pour stops when the source is empty or the destination is full. It cannot stop at an arbitrary amount. The game area remains available above the explanation.
What you need to achieve
Keep the goal in view while choosing a move. Measure the target number of litres using two unmarked jugs and only filling, emptying and pouring. Try the rule on the board, then read the next instruction.
Step by step
- Choose one of six capacity-and-target puzzles. Both jugs begin empty.
- Fill a jug to its capacity, empty it completely, or pour from one jug into the other.
- A pour stops when the source is empty or the destination is full. It cannot stop at an arbitrary amount.
- Reach the target quantity in either jug. Undo lets you try another route.
How to use the controls
Read the position before choosing your next action. Use Fill A, Fill B, Empty A, Empty B, Pour A → B and Pour B → A. The display shows current and maximum litres.
A useful example
A careful first move helps you understand the round. With 3- and 5-litre jugs, fill the 5-litre jug and pour into the 3-litre jug. The 5-litre jug now contains 2 litres. Keep the goal in mind before your next move.
Keep this in mind
The board gives you the information needed for the next action. You cannot measure a partial fill directly. Only the allowed actions can create a quantity. The game area remains available above the explanation.
Common questions
For this game, what is the aim of Water Jug Puzzle?
Measure the target number of litres using two unmarked jugs and only filling, emptying and pouring. Scores here do not represent cash or prizes.
During a round, how do the controls work?
Use Fill A, Fill B, Empty A, Empty B, Pour A → B and Pour B → A. The display shows current and maximum litres. You can start a new round from the game controls.
During a round, can you show an example?
With 3- and 5-litre jugs, fill the 5-litre jug and pour into the 3-litre jug. The 5-litre jug now contains 2 litres. You can start a new round from the game controls.
Which mistake should I avoid?
You cannot measure a partial fill directly. Only the allowed actions can create a quantity. The worked example offers another way to follow the rule.
What rules and limits are used here?
Six verified solvable capacity puzzles, with undo and move count. These are six levels of one game, not six separate games. Use the labelled controls for your next action.
On this page, how many people can play here?
Solo. This is local browser play, not internet matchmaking. The worked example offers another way to follow the rule.
When I start, where must the target volume end up?
In either jug. The other jug may contain any legal amount. The controls work with mouse or touch.
For this game, can I stop a pour halfway?
No. The source must empty or the destination must fill. No download or player account is required.
When I start, why is an action disabled?
It would not change the current jug contents, such as filling a full jug. Keep the current game state in view while applying this rule.
When I start, how many puzzles are included?
Six capacity-and-target combinations are selectable on the board. Keep the current game state in view while applying this rule.
