Game guide · RCFUTURE11
The essentials of playing Water Jug Puzzle
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. Choose one of six capacity-and-target puzzles. Both jugs begin empty. Keep the goal in mind before your next move.
Six verified solvable capacity puzzles, with undo and move count. These are six levels of one game, not six separate games.
Bring this focus to a round
The example and rules describe the same game you can play above. A pour stops when the source is empty or the destination is full. It cannot stop at an arbitrary amount. Keep the goal in mind before your next move.
The challenge in front of you
Measure the target number of litres using two unmarked jugs and only filling, emptying and pouring.
How a round unfolds
- 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.
Making selections and moves
The board gives you the information needed for the 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. The game area remains available above the explanation.
A useful example
Take a moment to check the current turn. 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. Try the rule on the board, then read the next instruction.
A mistake to avoid
You cannot measure a partial fill directly. Only the allowed actions can create a quantity. Keep the goal in mind before your next move.
Questions about this game
When I start, what is the aim of Water Jug Puzzle?
Measure the target number of litres using two unmarked jugs and only filling, emptying and pouring. A new round resets the current game.
When I start, 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. A new round resets the current game.
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. Keep the current game state in view while applying this rule.
When I start, which mistake should I avoid?
You cannot measure a partial fill directly. Only the allowed actions can create a quantity. No download or player account is required.
On this page, 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.
When I start, how many people can play here?
Solo. This is local browser play, not internet matchmaking. No download or player account is required.
During a round, where must the target volume end up?
In either jug. The other jug may contain any legal amount. The game is played locally in your browser.
During a round, can I stop a pour halfway?
No. The source must empty or the destination must fill. Scores here do not represent cash or prizes.
Why is an action disabled?
It would not change the current jug contents, such as filling a full jug. Use the labelled controls for your next action.
On this page, how many puzzles are included?
Six capacity-and-target combinations are selectable on the board. A new round resets the current game.