Game guide · SZWSXS
An introduction to playing Water Jug Puzzle
Use the controls beside the game rather than guessing the rules. Measure the target number of litres using two unmarked jugs and only filling, emptying and pouring. 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.
Something to practise
Begin with the basic rule, then follow the result of your action. A pour stops when the source is empty or the destination is full. It cannot stop at an arbitrary amount.
Aim for this result
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.
Follow these playing steps
- 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.
Your inputs
Take a moment to check the current turn. Use Fill A, Fill B, Empty A, Empty B, Pour A → B and Pour B → A. The display shows current and maximum litres. Start a new round when you are ready to try again.
An example before you play
Keep the goal in view while choosing a move. 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.
A useful caution
Take a moment to check the current turn. You cannot measure a partial fill directly. Only the allowed actions can create a quantity.
A few questions answered
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. The game is played locally in your browser.
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. Keep the current game state in view while applying this rule.
For this game, 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.
During a round, which mistake should I avoid?
You cannot measure a partial fill directly. Only the allowed actions can create a quantity. You can start a new round from the game controls.
When I start, 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. A new round resets the current game.
On this page, how many people can play here?
Solo. This is local browser play, not internet matchmaking. The instructions above use these same rules.
When I start, where must the target volume end up?
In either jug. The other jug may contain any legal amount. Use the labelled controls for your next action.
When I start, can I stop a pour halfway?
No. The source must empty or the destination must fill. Scores here do not represent cash or prizes.
When I start, why is an action disabled?
It would not change the current jug contents, such as filling a full jug. You can start a new round from the game controls.
How many puzzles are included?
Six capacity-and-target combinations are selectable on the board. Use the labelled controls for your next action.
