Game guide · DIPINGYS
Water Jug Puzzle: what to know before playing
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. Start a new round when you are ready to try again. 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.
Build familiarity through play
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 goal to keep in mind
Check the rule below as you play. Measure the target number of litres using two unmarked jugs and only filling, emptying and pouring. Keep the goal in mind before your next move.
From the start of a round
- 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.
Input guidance
Use the controls beside the game rather than guessing the rules. 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.
Learn from a sample situation
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. The game area remains available above the explanation.
Check this before moving on
Begin with the basic rule, then follow the result of your action. You cannot measure a partial fill directly. Only the allowed actions can create a quantity. The game area remains available above the explanation.
Read these answers for extra help
On this page, 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 worked example offers another way to follow the rule.
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. The instructions above use these same rules.
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. Use the labelled controls for your next action.
When I start, 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.
For this game, 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. The worked example offers another way to follow the rule.
On this page, how many people can play here?
Solo. This is local browser play, not internet matchmaking. The game is played locally in your browser.
During a round, where must the target volume end up?
In either jug. The other jug may contain any legal amount. The instructions above use these same rules.
When I start, can I stop a pour halfway?
No. The source must empty or the destination must fill. The game is played locally in your browser.
During a round, 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.
During a round, how many puzzles are included?
Six capacity-and-target combinations are selectable on the board. The instructions above use these same rules.
