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Comments by BobGreenwade

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@ Bob Greenwade[All Comments] [Add Comment or Rating]
Bob Greenwade wrote on Fri, Jul 28, 2023 05:54 AM UTC in reply to Jean-Louis Cazaux from Thu Jul 27 06:47 PM:

Have you tried to print such a piece? In my opinion the result won't be good.

   It occurred to me only just now that you may have been referring to the Hangman, not the Zip. Indeed, I can see your concern, but I've found that a minimum of 2.5mm can be considered reasonably sturdy in PLA, and the rope is 3mm in diameter if printed full size. (Still, I'd store it carefully, and wouldn't be too rough with it.)


Bob Greenwade wrote on Fri, Jul 28, 2023 02:30 PM UTC:

Re: The Hangman's move: My intention is that the capture is optional. So it seems that mKmcoabafKdaubafK would be the way to go.

Based on my experience with PLA wire, I think this piece will need many supports, to be removed after printing. The piece itself looks very fragile, I would even expect it breaks when you will remove the supports. Or later on, when using it or in its storage box. Just saying.

It might. But I do have another (completely unrelated) print with a part that thin that lasted 3 years before breaking, and that's just one of five.

As for supports, I'd assume that such would be needed. I'd recommend using tree supports, even though it'd require more support material. And, if possible, using specialized support filament.

And the knot leaves much to be desired. This is not how you would make a noose.

I call this the Department of Whatcha Gonna Do. It was the best I could find. (That said, I may update it later after making my own... though I have little confidence in that.)


Vanguard Chess. Game on 16x16 board, with 48 pieces per player. (16x16, Cells: 256) [All Comments] [Add Comment or Rating]
💡📝Bob Greenwade wrote on Fri, Jul 28, 2023 02:39 PM UTC in reply to H. G. Muller from 07:24 AM:

I'll fix the Wizard's ID move per your note.

I could make the regular move leaps; my idea is that the Wizard moves normally, but does the swapping through a magic spell.

I'll try to simplify the discussion on Checking and Checkmate, among other things by putting it all in one place.

I don't suppose the succession parameter can get the Prince to promote upon the King's capture? (And likewise the Princess and Queen.)


@ Bob Greenwade[All Comments] [Add Comment or Rating]
Bob Greenwade wrote on Fri, Jul 28, 2023 02:46 PM UTC:

12. Zip. Also referred to as Lightning, this piece can move one or two spaces orthogonally, and then continue outward with alternating diagonal and orthogonal moves, somewhat like a lame Nightrider.

This was created by request from Lev Grigoriev for his game Horizons.

(The 2.5mm rule discussed with the Hangman applies here; the joint between the lightning bolt and the base is 3mm wide. Still, the size of the bolt may make it a bit more subject to breakage, so I may rework it to make that joint stronger.)


Bob Greenwade wrote on Fri, Jul 28, 2023 05:01 PM UTC in reply to H. G. Muller from 03:16 PM:

This reminds me of the piece (or actually a family of pieces) that used to be called Rhino, before  people started to use that symbol and name for the W-then-B. This differs from your Zip by already bending after the first step. (Which is actually more regular; the path you indicate bends at every step except the first.)

It's a little like those, yes; I had similar thoughts, though really I think it's closer to [W?nNN] -- a variation on the modern Rhino. The difference from that is that the Zip's moves are strictly defined, and it can stop halfway through a Knight's leap.

It's that extra orthogonal move at the start that makes this piece distinctive. I do think that it would be an interesting piece to see running around the board.


Bob Greenwade wrote on Fri, Jul 28, 2023 10:12 PM UTC in reply to Diceroller is Fire from 07:56 PM:

By "invert," do you mean to flip it over top-to-bottom?

I'm not sure about making it fewer zig-zags; there's a lot of complicated stuff that would be involved with not just taking out the third (that's a stock lightning bolt, not homemade), but also making sure the piece has the appropriate height and diameter.


Bob Greenwade wrote on Sat, Jul 29, 2023 02:09 PM UTC in reply to Jean-Louis Cazaux from 05:32 AM:

I don't know about all; it's true that many of the pieces I'm building and putting on Thingiverse are merely proposals (the Gerbil and Anteater are among those, as is the piece that I'll be putting up here in a few minutes). But most of them I do want to build, especially those for Vanguard, Aquachess, and a couple other variants I'm doing (my huge project, plus variants based on Clue and Winnie the Pooh). Before I can do that, though, I'll need to either fix my printer or hire someone like makexyz.

And yeah, removing a portion of the lightning bolt wouldn't actually be terribly complicated; I overstated the matter. It mainly depends on what Lev actually wants.


Bob Greenwade wrote on Sat, Jul 29, 2023 02:37 PM UTC:

12. Thunder. This is the best I could figure out from the Thunderer in Charles Gilman's Man and Beast articles, which is listed as a square-board piece even though one of the pieces that combine for it (the Tradewind) is one of his cubic/hex-prism pieces. I'm mainly guessing at his intent here, but I do find it interesting.

The Thunder, to start with, has all the moves of the Queen and Nightrider. It also can leap two spaces orthogonally or diagonally, and then may turn 45 degrees to move outward like a Bishop or Rook (respectively).

This is an extraordinarily powerful piece; see how it utterly dominates even this 15x15 board? Only the threat of capture can restrain it once it's in the field.

One way to restrain it would be to make it a promotion-only piece, and given that yesterday's Zip is also called Lightning, it seems like a logical candidate for what it could promote from. (In fact, it was putting up the Zip that led me to do this one today.)

I actually built this originally just as a private joke, and hadn't even intended to put it on Thingiverse until I saw what the move looked like; I put it there more for that than anything else. Despite its being overwhelmingly powerful, the move diagram has an interesting symmetry.

It also occurred to me that one could use this as the starting point for a chess variant with the potential for being truly (ahem) marvelous.


Bob Greenwade wrote on Sat, Jul 29, 2023 02:38 PM UTC in reply to Jean-Louis Cazaux from 11:47 AM:

If you need it, I can make it for you

Who was this directed toward?


Vanguard Chess. Game on 16x16 board, with 48 pieces per player. (16x16, Cells: 256) [All Comments] [Add Comment or Rating]
💡📝Bob Greenwade wrote on Sat, Jul 29, 2023 02:44 PM UTC in reply to H. G. Muller from 10:22 AM:

Yeah, I kind of figured it'd be that complicated. I'll hold off on trying to do the succession for now, though I do have an idea.

Perhaps, from the perspective of the ID, the King each side starts with is a non-royal King. Then capturing either the NRK or the Prince puts the royal King in the place of the other.

That might even be a clearer way of explaining that in the text.

I'd want to hold off on any custom scripting until this variant is live, though.


Enhanced Pawn Chess (EPC). Pawn upgrading by extended capturing possibilities. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Bob Greenwade wrote on Sat, Jul 29, 2023 03:08 PM UTC in reply to H. G. Muller from 02:42 PM:

That's a legitimate point re: the word "Progressive." Maybe they could be called Power Pawns?


Vanguard Chess. Game on 16x16 board, with 48 pieces per player. (16x16, Cells: 256) [All Comments] [Add Comment or Rating]
💡📝Bob Greenwade wrote on Sat, Jul 29, 2023 03:42 PM UTC in reply to H. G. Muller from 02:57 PM:

The extinction royalty sounds like what I'm after (or, as we used to say in the 80s, "close enough for government work"), especially if the Prince promotion can still happen.


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Bob Greenwade wrote on Sat, Jul 29, 2023 05:16 PM UTC:

Well, I'm in the process of updating everything so they all have the same tech-looking base as the Kimono Dragon. The only ones I've listed here so far that I'm satisfied with, and would want to use in an actual live game, are the Rabbit, the Ghost, and the Pirate.

I wouldn't mind seeing what those three and the Rope look like in practice -- especially if the Ghost is as fragile as I suspect it might be. (And remember that the Pirate should be grey.)

And if you're really concerned about the Kimono Dragon, try that one out too, if only to see how flimsy the sword is.


Enhanced Pawn Chess (EPC). Pawn upgrading by extended capturing possibilities. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
Bob Greenwade wrote on Sat, Jul 29, 2023 06:26 PM UTC in reply to Gerd Degens from 05:33 PM:

No, that is not what "more moves per turn" means. You just give a choice between more moves, but the player can play only one of those. In Progressive Chess you would be able to move 2, 3, 4, 5, 6, ... different Pawns each turn.

You're way ahead of me there. Instead of two fields, the pawns can now conquer 6 fields. How else would you call the increase "progressive". What is your term?

What H.G. is getting at is that your Pawns can still only conquer 1 of those 6 fields at a time. They're not "Progressive" in the way that he's saying; they're just more powerful. That's why I suggested calling them Power Pawns. Jean-Louis' suggestions of Augmented or Enhanced would work too.


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Bob Greenwade wrote on Sat, Jul 29, 2023 07:07 PM UTC in reply to Jean-Louis Cazaux from 06:28 PM:

Oh, I misunderstood what you meant by "make." As far as that, yeah, I'll have that covered, depending on what Lev says about it.


Bob Greenwade wrote on Sat, Jul 29, 2023 08:35 PM UTC in reply to Jean-Louis Cazaux from 08:24 PM:

"Do" would have created the same confusion in me (and me being on the autism spectrum is just as much a contributor as language). "Build" or "draw" would've been clearer, or at least less likely to bring confusion.


Bob Greenwade wrote on Sun, Jul 30, 2023 03:54 PM UTC:

13. Bodyguard. Rather than an original or recently-invented piece, this time I'm presenting a particularly little-seen -- and, in my opinion, underused and underrated -- historical piece. The Bodyguard (which I've also seen spelled Bodygard) comes from the Mongolian game of Hiashatar, where it's known as the Hia (pronounced HEE-ah).

The Bodyguard can move one or two spaces in any direction, orthogonal or diagonal. It also has a "Hia power": Any slider that enters any adjacent space, or is in an adjacent space when the Bodyguard moves, is immediately stopped, and can only move one space while in that zone. Leaping moves are not affected by this.

The Betza for the basic move is, of course, Q2; encoding an Interactive Diagram with the Hia power would probably require a variation on spell=brake.

My physical design is intended to be reminiscient of traditional Mongolian soldiers' hats, recognizing the piece's origin (though admittedly the resemblance is a stretch).

If I were going to add (yet) another piece to Vanguard Chess, this would probably be the one. Also, it'd be a rather interesting piece to bring to Pick-the-team Chess (variant two), or to include in any game with move-borrowing that includes borrowing special properties.


Bob Greenwade wrote on Mon, Jul 31, 2023 02:07 PM UTC:

14. Thoroughbred. This is a simple combination (2,5)(3,5) leaper (AXCY), so named because it passes the Knight on either side while going nearly twice as fast. (In some games, it could also be called a Racehorse.)

I haven't bothered making a move diagram for this one, mostly because it's so simple.

This is the first in a group of three. The third one (Wednesday) is the piece I actually want to share (and, hopefully, use); today's and tomorrow's, though not exactly useless, are mostly just building the context.


Featured Chess Variants. Chess Variants Featured in our Page Headers.[All Comments] [Add Comment or Rating]
Bob Greenwade wrote on Tue, Aug 1, 2023 12:37 AM UTC in reply to Fergus Duniho from 12:21 AM:

That should give visitors plenty to "Chu" on. #BadPunNoCookie


@ Bob Greenwade[All Comments] [Add Comment or Rating]
Bob Greenwade wrote on Tue, Aug 1, 2023 02:08 PM UTC:

15. Thoroughbred Knight. As the name suggests, this piece simply combines the (2,5)(3,5) move of the Thoroughbred (yesterday's piece) with the (1,2) move of the Knight (NAXCY).

This does make the piece more useful in a game than a plain old Thoroughbred. The Thoroughbred moves can get the piece to the action, and then the Knight's moves can be the main form of battle.

Admittedly, in terms of physical design, I may need to tweak this one a little to make the barding (at least, the eyeholes) a bit clearer, and possibly to give it some sort of distinction that's easily visible from behind.


Bob Greenwade wrote on Tue, Aug 1, 2023 02:31 PM UTC in reply to Diceroller is Fire from 08:47 AM:

You can make the joint 2 times stronger.

Here that is.

Maybe I'm wrong with asking for inverting it; that would be challenging for the skies; so lightning normally goes not into, but from it.

That was my point of hesitation on that part. But I think what I have here should serve your purposes.


Bob Greenwade wrote on Tue, Aug 1, 2023 05:20 PM UTC in reply to H. G. Muller from 03:46 PM:

Well, then, there's this:

The connection is now 5.5mm wide, and that by 10mm long should hold through any but the worst handling.


Featured Chess Variants. Chess Variants Featured in our Page Headers.[All Comments] [Add Comment or Rating]
Bob Greenwade wrote on Tue, Aug 1, 2023 05:22 PM UTC in reply to H. G. Muller from 05:20 PM:

Well... sometimes four ranks, occasionally five... and then there are the 3D variants.

But I support H.G.'s suggestion, in principle.


Bob Greenwade wrote on Tue, Aug 1, 2023 06:08 PM UTC in reply to H. G. Muller from 05:28 PM:

Yeah, that's why I supported in principle. And I think the policy should be exactly as you just described.


@ Bob Greenwade[All Comments] [Add Comment or Rating]
Bob Greenwade wrote on Tue, Aug 1, 2023 06:57 PM UTC in reply to H. G. Muller from 05:23 PM:

This kinda was my first thought for "beefing up," but I wasn't sure it'd be effective.


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