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Topic: Minor new Pente variant proposal
Replies: 14   Views: 968   Pages: 1   Last Post: Jun 10, 2026, 2:23 PM by: 2yax2022

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watsu

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Registered: Dec 16, 2001
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Minor new Pente variant proposal
Posted: Jun 3, 2026, 1:51 PM

In this variant, all standard rules apply (or typical variant rules can apply as well) with the additional rule that a player of a given color is able to play a piece on top of one of their existing pieces, should they choose. This allows a player to replace a missing piece before it gets captured and goes missing, should the player wish to do so.

Retired from rated TB Pente, but still playing live and TB variants

rainwolf

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Re: Minor new Pente variant proposal
Posted: Jun 3, 2026, 4:50 PM

Like tetris? The piece on top falls down a layer if the bottom piece gets captured?

watsu

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Re: Minor new Pente variant proposal
Posted: Jun 3, 2026, 5:01 PM

Yes, like tetris in that sense.

Retired from rated TB Pente, but still playing live and TB variants
rainwolf

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Re: Minor new Pente variant proposal
Posted: Jun 3, 2026, 5:40 PM

I would want to revisit this in the future when I have more energy to spare, but would still want to do renju before any other variant

karlw

Posts: 993
Registered: Mar 7, 2006
From: Philadelphia, PA
Age: 38
Re: Minor new Pente variant proposal
Posted: Jun 3, 2026, 5:47 PM

The way I first interpreted this is stones go on top in the sense of placing a second stone on K9, so that if a capture occurs through K9, the second K9 stone remains. I think this is what we're all getting at.

I like this idea more than the idea that if K9 is captured and there is a stone on K10, the K10 stone slides down (and other connected stones directly above). What if I really wanted the K10 stone to stay on K10?

You could put a "x2" indicator on a stone to indicate multiple stones at an intersection.

Rule idea: You can also win if you get 5 stones on the same intersection. Can white play on top of an intersection if black has the bottom layer, or are you only allowed to build on your own color base?

It's no use going back to yesterday, because I was a different person then.
watsu

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Re: Minor new Pente variant proposal
Posted: Jun 3, 2026, 6:21 PM

Right, the second K9 stone remains, not a K10 slide down- that was my intent. Maybe a winning threat can be blocked by the opponent, so if a player decides to go for a three dimensional win, after 4 stones it can be blocked. I think a fully three dimensional game would be interesting, but pretty far removed from my intent, and would need more exploration. My original idea was simply that sometimes there's simply no good way to protect a pair, and if both stones in the pair are keystones, then a capture of them forces a win. In that case, if a player can play on top before the capture, then they can replace both keystones; one before the capture and the other one after the capture.

Retired from rated TB Pente, but still playing live and TB variants
watsu

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Re: Minor new Pente variant proposal
Posted: Jun 3, 2026, 6:33 PM

@rainwolf - totally understood and agreed about the priority of renju over this. This is sort of a rare, late game variant possibility idea that I wanted to express while thinking about it, rather than something I see as a high priority or it'd be great to have it. It might change the dynamic of the game somewhat, but most likely not nearly as much as the Boat rule.

Retired from rated TB Pente, but still playing live and TB variants
watsu

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Re: Minor new Pente variant proposal
Posted: Jun 3, 2026, 6:42 PM

I may see if I can get an analysis board set up with this variant idea - adding it to my poof keryo and the capturing a winning line OT rule app. https://poe.com/PoofKeryoPente

Retired from rated TB Pente, but still playing live and TB variants
watsu

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Re: Minor new Pente variant proposal
Posted: Jun 3, 2026, 7:15 PM

Rule statement: in this proposal, a maximum of a single stone of the same color can be played on top of an existing stone of that color. This prevents a winning stack of five in a row and vertical (interdimensional) pair captures, but doesn't prevent pairs of stones which are on the top level from being captured or threatened, provided the opponent stacks in order to threaten the pair. Other more three dimensional variants can be explored and proposed, but this statement limits concerns for this particular variant.

Retired from rated TB Pente, but still playing live and TB variants
watsu

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Re: Minor new Pente variant proposal
Posted: Jun 4, 2026, 4:28 PM

This is an initial attempt at implementing the idea (Stack Pro Pente). I'll need to have it modified so that stacked stones can threaten to capture from other stacks at whatever layer the capture should take place on, but this initial implementation does drop a stone down once a stone is captured out from under it. https://poe.com/PoofKeryoPentePlus

Retired from rated TB Pente, but still playing live and TB variants
watsu

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Re: Minor new Pente variant proposal
Posted: Jun 6, 2026, 9:12 AM

Now, a reasonably unbuggy version of this is included along with a couple of other variants (poof keryo and capture a winning line) at https://poe.com/PoofKeryoPenteStack

Retired from rated TB Pente, but still playing live and TB variants
2yax2022

Posts: 6
Registered: Sep 27, 2024
Re: Minor new Pente variant proposal
Posted: Jun 9, 2026, 12:13 PM

Questions:
- what should happen when you have O2 X2 X2 and put an O to the end? In the current implementation on poe nothing. Only the top line can be removed.
- in case of poof both pairs are removed? (Though in real life game it is hard to imagine why would one do such doublestack in poof.)

watsu

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Re: Minor new Pente variant proposal
Posted: Jun 9, 2026, 1:53 PM

I thought I'd fixed the issue with O2 X2 X2 O, so that it becomes O2 X X O, but will check again to see if maybe I didn't update the code. If one had O2 X2 X2 and place O in poof it would have the same result as in regular. Only if you had something more like O2 X2 X2 _ O2 X2 and placed an O stone at _ would poof rules affect both O and X stones.

Retired from rated TB Pente, but still playing live and TB variants
watsu

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Registered: Dec 16, 2001
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Re: Minor new Pente variant proposal
Posted: Jun 9, 2026, 1:59 PM

Did you try the variant on the app at https://poe.com/PoofKeryoPenteStack - it seems to handle the case you mentioned correctly. If not, let me know the scenario you tested and I'll dig deeper.

Retired from rated TB Pente, but still playing live and TB variants
2yax2022

Posts: 6
Registered: Sep 27, 2024
Re: Minor new Pente variant proposal
Posted: Jun 10, 2026, 2:23 PM

It works there!

Replies: 14   Views: 968   Pages: 1  
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