Home/Non-verbal reasoning/Water image
Non-verbal reasoning · reflection

Water Image Puzzles

The figure is standing at the edge of still water. Which of the four options is exactly the reflection you would see? Sixty patterns across letters, words, numbers, codes, arrows, shapes and clock faces — with the reasoning after every attempt, including why each wrong option is wrong.

Also known as water images and reflection in water.

60named patterns
8stimulus families
5named wrong-answer traps
generated puzzles

What A Figure Looks Like Reflected In Water

A water image puzzle asks what a figure looks like reflected downwards, as though in still water beneath it. Top and bottom swap, but left-to-right order is preserved — so a word keeps its letters in sequence rather than reversing them. That single difference from a mirror image is what most wrong answers get wrong.

Flip Top To Bottom, And Keep The Order

There is one rule, and almost every lost mark comes from breaking it: the order never changes. The mirror is lying beneath the figure, not standing beside it.

  1. Keep the order. Whatever is on the left stays on the left. If an option has reversed the sequence, it is a mirror image and it is wrong.
  2. Turn each part upside down. Every character, arrow and detail flips top to bottom where it stands.
  3. Check what was above is now below. A row of dots beneath a shape ends up above it. An ascender becomes a descender.
  4. Ask whether it could be a rotation. Turning the figure 180° also puts the top at the bottom — but it reverses the order too. That is the difference.
  5. Ignore anything symmetric. B, C, D, E, H, I, K, O, X and the digits 0, 1, 3 and 8 come through unchanged and tell you nothing.

The one-line test. Read the option left to right. If it spells the original sequence, it can be the water image. If it spells the sequence backwards, it is a mirror image or a rotation — and it is wrong, however convincing the flipped letters look.

Water Image Versus Mirror Image

These two are the most confused pair in non-verbal reasoning, and the difference is exactly one thing: which way the mirror lies.

Both are offered as options in nearly every puzzle on this page, which is deliberate. If you can see which of the two you nearly picked, you have found the exact thing to practise — and mirror image is the other half of it.

Same idea, different axis — and the difference decides which characters can be used at all.
Mirror imageWater image
AxisVertical — reflects left to rightHorizontal — reflects top to bottom
Order of a rowReversesStays put
Capitals that surviveA H I M O T U V W X YB C D E H I K O X
Digits that survive0 1 80 1 3 8
Lower case pairsb to d, p to qb to p, d to q
All-symmetric stringA valid trapImpossible — it reflects to itself

The Letters And Digits That Survive Water

Different characters survive a water image than survive a mirror image, because the axis is different. These are symmetric about a horizontal line and so come through unchanged:

Reading A Clock Face Upside Down In Water

A clock reflected in water has its mirror line running through the 3 and the 9, so every position maps to 6 minus itself: 12 swaps with 6, 1 with 5, 2 with 4, while 3 and 9 stay exactly where they are. Both hands move together, and unlike a mirror image the result is usually not a readable time at all — which is the point. Judge it by the hand positions, not by trying to read it.

The Eight Things You Will See In The Water

Sixty patterns across eight kinds of thing to reflect: capital letters, small letters, digits and numbers, words, alphanumeric codes, arrows and symbols, geometric figures and clock faces. Difficulty comes from length and from how many horizontally symmetric characters are hiding in the group.

Water Image Puzzles Frequently Asked Questions

Does the order of the letters reverse?

No. That is the single most important thing about this puzzle type. The mirror is below the figure, so the leftmost character stays leftmost — only each character individually turns upside down. An option with the order reversed is a mirror image.

What is the difference between a water image and a rotation?

Turning the figure 180° also puts the top at the bottom, but it reverses the left-to-right order as well. A water image does not.

Which letters look the same in water?

B, C, D, E, H, I, K, O and X among the capitals, and 0, 1, 3 and 8 among the digits. Several patterns here hide one of them in a group on purpose.

How many puzzles are there?

There is no fixed number. Each puzzle is rebuilt from the short seed in the page address, so the supply is effectively unlimited. Copying the puzzle link saves that exact puzzle permanently.

What is a water image?

The reflection you would see in still water lying directly beneath the figure. It is a flip in a horizontal line, so the top and bottom swap while left and right stay exactly where they are — which is what makes it different from a mirror image.

What is the difference between a mirror image and a water image?

The axis. A mirror image is reflected left to right in a vertical mirror, so the order of a row of letters reverses. A water image is reflected top to bottom, as in still water, so the order stays exactly as it was and only each character flips upside down. That is why the two have completely different sets of letters that survive unchanged.

How do you find the water image of a figure?

Draw the waterline underneath it and flip everything vertically about that line, keeping every part in the same left-to-right position. Anything above the line goes below it by the same distance. The quickest check is a single asymmetric feature — find one, work out where it lands under the line, and you can usually eliminate three options without redrawing the whole figure.