Game guide · GODIEA
Water Jug Puzzle: a guide for your next round
Read the position before choosing your 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.
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
Read the position before choosing your next action. A pour stops when the source is empty or the destination is full. It cannot stop at an arbitrary amount. Start a new round when you are ready to try again.
The purpose of your moves
Begin with the basic rule, then follow the result of your action. Measure the target number of litres using two unmarked jugs and only filling, emptying and pouring. The game area remains available above the explanation.
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.
The controls to know
Keep the goal in view while choosing a move. 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.
A useful example
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.
Where a round can go wrong
Check the rule below as you play. You cannot measure a partial fill directly. Only the allowed actions can create a quantity. The game area remains available above the explanation.
Questions about this game
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. A new round resets the current game.
On this page, 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. No download or player account is required.
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. The instructions above use these same rules.
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. You can start a new round from the game controls.
When I start, how many people can play here?
Solo. This is local browser play, not internet matchmaking. Use the labelled controls for your next action.
On this page, 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.
During a round, can I stop a pour halfway?
No. The source must empty or the destination must fill. A new round resets the current game.
For this game, why is an action disabled?
It would not change the current jug contents, such as filling a full jug. The controls work with mouse or touch.
How many puzzles are included?
Six capacity-and-target combinations are selectable on the board. The instructions above use these same rules.