# Image occlusion: Hide all but one

**URL:** <https://forums.ankiweb.net/t/image-occlusion-hide-all-but-one/67312>\
**Category:** Help\
**Created:** [November 3, 2025, 12:18am UTC](https://forums.ankiweb.net/t/image-occlusion-hide-all-but-one/67312 "2025-11-03T00:18:48Z")\
**Posts on this page:** 11\
**Page:** 1

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**Author:** ![nsk](https://avatars.discourse-cdn.com/v4/letter/n/a4c791/32.png) [@nsk](https://forums.ankiweb.net/u/nsk)\
**Post date:** [November 3, 2025, 12:18am UTC](https://forums.ankiweb.net/t/image-occlusion-hide-all-but-one/67312/1 "2025-11-03T00:18:48Z")

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I’m using native image occlusion and I would like an option to hide all but one. For example if I have a table

| lowercase | uppercase |
| --- | --- |
| a | A |
| b | B |
| c | C |

I want to show only `a` so I can guess `A`, without getting hints from the other rows.

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**Author:** ![Danika\_Dakika](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.ankiweb.net/danika_dakika/32/17815_2.png) [@Danika\_Dakika](https://forums.ankiweb.net/u/Danika_Dakika)\
**Post date:** [November 3, 2025, 1:08am UTC](https://forums.ankiweb.net/t/image-occlusion-hide-all-but-one/67312/2 "2025-11-03T01:08:36Z")

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That’s “Hide All, Guess One” mode – [Adding/Editing - Anki Manual](https://docs.ankiweb.net/editing.html#adding-io-cards) .

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**Author:** ![nsk](https://avatars.discourse-cdn.com/v4/letter/n/a4c791/32.png) [@nsk](https://forums.ankiweb.net/u/nsk)\
**Post date:** [November 3, 2025, 2:55am UTC](https://forums.ankiweb.net/t/image-occlusion-hide-all-but-one/67312/3 "2025-11-03T02:55:47Z")

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Not quite. Hide all guess one occludes all 6. But I’m using `a` as the prompt for `A`, and if I hide the `a` then I won’t know what the prompt is. I want to occlude all but one.

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**Author:** ![Danika\_Dakika](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.ankiweb.net/danika_dakika/32/17815_2.png) [@Danika\_Dakika](https://forums.ankiweb.net/u/Danika_Dakika)\
**Post date:** [November 3, 2025, 7:20am UTC](https://forums.ankiweb.net/t/image-occlusion-hide-all-but-one/67312/4 "2025-11-03T07:20:35Z")

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If you don’t want to hide “a” – don’t put an occlusion on it.

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**Author:** ![nsk](https://avatars.discourse-cdn.com/v4/letter/n/a4c791/32.png) [@nsk](https://forums.ankiweb.net/u/nsk)\
**Post date:** [November 3, 2025, 7:43am UTC](https://forums.ankiweb.net/t/image-occlusion-hide-all-but-one/67312/5 "2025-11-03T07:43:52Z")

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This note should produce 6 cards. In each case, one letter is shown and the other letter in the same row is guessed. The guessed letter and the other four letters should all be occluded.

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**Author:** ![ZornHadNoChoice](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.ankiweb.net/zornhadnochoice/32/28874_2.png) [@ZornHadNoChoice](https://forums.ankiweb.net/u/ZornHadNoChoice)\
**Post date:** [November 4, 2025, 8:35am UTC](https://forums.ankiweb.net/t/image-occlusion-hide-all-but-one/67312/6 "2025-11-04T08:35:58Z")

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jariji has opened a PR for this [Add "hide all but one" occlusion mode. by jariji · Pull Request #4419 · ankitects/anki · GitHub](https://github.com/ankitects/anki/pull/4419#issue-3584312413).

(I feel like someone will eventually ask for a “non-reversed” mode which can be achieved by adding the ability to prevent certain masks from generating cards.)

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<div class="post-metadata">

**Author:** ![Danika\_Dakika](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.ankiweb.net/danika_dakika/32/17815_2.png) [@Danika\_Dakika](https://forums.ankiweb.net/u/Danika_Dakika)\
**Post date:** [November 11, 2025, 1:35am UTC](https://forums.ankiweb.net/t/image-occlusion-hide-all-but-one/67312/7 "2025-11-11T01:35:15Z")

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The question this raises for me – why include all 3 rows if you will hide the other 2? The point of having uncovered areas in your IO is that they are useful.

But a simple solution is just to draw a “polygon” occlusion or use multiple grouped occlusions to hide the rest of the card.

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**Author:** ![nsk](https://avatars.discourse-cdn.com/v4/letter/n/a4c791/32.png) [@nsk](https://forums.ankiweb.net/u/nsk)\
**Post date:** [November 11, 2025, 1:53am UTC](https://forums.ankiweb.net/t/image-occlusion-hide-all-but-one/67312/8 "2025-11-11T01:53:21Z")

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> multiple grouped occlusions

Do I understand your proposal? For each prompt item I would have to draw occlusions for each other item and group those, producing n\*(n-1) boxes, eg here 6\*5=30.

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<div class="post-metadata">

**Author:** ![Danika\_Dakika](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.ankiweb.net/danika_dakika/32/17815_2.png) [@Danika\_Dakika](https://forums.ankiweb.net/u/Danika_Dakika)\
**Post date:** [November 11, 2025, 4:16am UTC](https://forums.ankiweb.net/t/image-occlusion-hide-all-but-one/67312/9 "2025-11-11T04:16:21Z")

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You certainly don’t need to draw an occlusion over each one individually. The polygon shape or even a rectangle over multiple would work.

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**Author:** ![ZornHadNoChoice](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.ankiweb.net/zornhadnochoice/32/28874_2.png) [@ZornHadNoChoice](https://forums.ankiweb.net/u/ZornHadNoChoice)\
**Post date:** [November 11, 2025, 8:40am UTC](https://forums.ankiweb.net/t/image-occlusion-hide-all-but-one/67312/10 "2025-11-11T08:40:40Z")

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Clever idea, but the masks would overlap in the editor and it would get unwieldy quickly with a larger number of items.

I think this suggestion can be used for memorizing sequential info too. For example, one can hide every item of a list and show one as a prompt to recall the next one.

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**Author:** ![system](https://us1.discourse-cdn.com/flex002/uploads/anki2/original/1X/8f1279ababc5879d54e4838989f606cfe55af8c7.jpeg) [@system](https://forums.ankiweb.net/u/system)\
**Post date:** [December 11, 2025, 8:41am UTC](https://forums.ankiweb.net/t/image-occlusion-hide-all-but-one/67312/11 "2025-12-11T08:41:15Z")

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Closed on December 11, 2025, 8:41am UTC

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