Visually mark the favorable ladder that is required.

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Terranigma
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Joined: Thu Jul 23, 2015 6:30 pm

Visually mark the favorable ladder that is required.

Post by Terranigma »

Very often on josekipedia you will come upon a joseki variation with the note "Favorable ladder required" attached, without any mention of where exactly this particular ladder would run to.

Instead of (or in addition to) this half-assed "Favorable ladder required" comment, Josekipedia should allow placing diagonal white and black arrows on the (opposite end of the) board, to make the ladders in question immediately visually obvious. Alternatively --instead of arrows-- you could lay out (the tail of) the ladder itself, but with stones that are 50% transparent (so as to be immediately distinguishable from the actual stones already present in the joseki).
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adum
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Joined: Tue Sep 30, 2008 5:09 pm

Re: Visually mark the favorable ladder that is required.

Post by adum »

interesting idea. how woudl you lay it out?
Terranigma
Posts: 2
Joined: Thu Jul 23, 2015 6:30 pm

Re: Visually mark the favorable ladder that is required.

Post by Terranigma »

Obviously, you'd need to add a ladder UI element (a button or some such) in the Edit view.

When you click on it, two pairs of radio buttons should appear: one pair to switch between a topleft-bottomright oriented ladder and a topright-bottomleft oriented ladder, and one pair to switch between a blackinside-whiteoutside ladder and a whiteinside-blackoutside ladder.

When moving your mouse pointer over the go board, a corresponding semi-transparent ladder "icon" should ideally automatically hang below the cursor. Clicking a board position would then anchor the ladder. Length-wise something like this should be clear enough, no?:

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k0n0
Posts: 2
Joined: Wed Sep 01, 2021 10:55 pm

Re: Visually mark the favorable ladder that is required.

Post by k0n0 »

The problem is there may be more ladders required. Then how to minimize number of visual elements in order not to clutter the goban?

My suggestions:
- there should be another tab in the right-side panel called "Ladders", it should be greyed out if empty
- individual ladders should be described in individual lines of the text area of "Ladders" 1) should be clickable, 2) should show the player color who captures stones in the ladder, 3) should include links to positions where individual ladders start (the first ladder atari)
- if you click an individual ladder in the text area, it should be visualised (an UI element should be shown) on the goban

I am not sure how the UI element should look - a) it could be 4 arrows or b) several steps of stairs. Anyway the goban point where it starts (the first ladder atari) should be stressed visually.

Another complication:
For each node, there may be
1) ladders that come into consideration right now: right now a player decides whether he shall play that variantion
2) ladders inherited from previous nodes
They should be distinguished in the "Ladders" tab.

Sorry for the complications :)

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If you want a simple solution, the "Ladders" tab could include only a link to the move with the first ladder atari. Anyway it is good to have a special tab, in order that joseki contributors know they should care about ladders.
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