Comments/Ratings for a Single Item
You keep stressing how many variants are covered by your patent. More relevant would be: how many of those are actually played? How many of these variants have regional or national championships for them? On how many internet servers can people play these variants? How many people World-wide have equipment to play any of thee variants? It seems to me that all this is a lot more important than wether you cover a billion or a trillion variants...
I am further inspired to write in defence of the Falcon piece, at least, by comments on some variants of mine that do not use it. Yes, the Falcon is weaker than the Bison, but too much of a strong piece is not always a good thing. Comments on variants using compounds of two oblique leapers have made me reluctant to use them further unless a theme calls for them. They can just about get by on a board of squares, or more sparingly on a hex-prism board, but on a cubic board they can be overpowering. A Gnu, Gazelle, or Bison in the centre of an 8x8x8 board can reach 48 cells, and a Buffalo 72. The same could of course be said of the Churchwarden, Samurai, Overon, and Canoe but at least that lot are confined to the second preimeter. ` Being blockable a Falcon does not dominate even the cubic board to the same extent, and suggests a logical set of fellow pieces. Where, by mixing Wazir and Ferz steps, it complements the Knight corresponding 3rd-perimeter steppers can be devised mixing Wazir and Viceroy steps to complement the Sexton - call it the Vulture - and mixing Ferz and Viceroy steps to complement the Ninja - call it the Kite. Even their own compounds are not unthinkable with sufficient blocking pieces - say Merlin for Falcon+Vulture, Kestrel for Falcon+Kite, Osprey for Vulture+Kite, and Eagle for the triple compound. In fact I might try out a cubic variant with the compound pieces, if George Duke does not object.
> 3-Ds are just 2 or more layers of 2-Ds, unnecessary contrivance, when you could just lay the whole smear end to end in nice flat canvas. Strictly speaking, of course, 2-dimensional games can also be represented as 1-dimensional games. A 1-dimensional layout is simpler mathematically (and game-playing software often stores a game's positions in a 1-dimensional array), but the human visual system generally does better with 2 dimensions than with either 3 or 1. Exactly what this says about the relationship between mathematical tidiness and playability, I'm not sure.
There are elements of interest found in higher-dimensional chess that are not found in 2D variants. But many think the 2D surface is the best to play upon. Even if the game is 3 or 4 dimensions, playing on a 2D surface is generally easier. For an interesting take on this topic, let me recommend Mapped Chess, by S. Burkhart, found here: http://www.chessvariants.org/index/msdisplay.php?itemid=MSmappedchess
I like falcon. It's interesting stronger version of Korean elephant. By the way, have anybody thought about using moo in Korean chess instead normal horse (mao) and falcon with only zebra's moves (without all camel moves) instead normal elephant? But, i think that section 'Other variants' should be removed from this page, and each variant, described here (shogi generals instead pawns, for example), should have separate page, they are not logical continuation of falcon, they may be used for FIDE chess to (as Betza says, 'for progressive earthquake trapdoor alice shogi'), this page takes many space without it, but these variants are interesting to.
Humphrey Bogart was Chess player with games recorded now at ChessGames, http://www.chessgames.com/perl/chessplayer?pid=65398. The Maltese Falcon of 1941 movie has just sold November 2013: http://www.nydailynews.com/entertainment/tv-movies/maltese-falcon-figurine-fetches-4-million-article-1.1529179, http://www.pbs.org/newshour/rundown/2013/11/maltese-falcon-bird-statuette-up-for-auction.html. Bill Wall's Chess and Movies http://www.geocities.com/siliconvalley/lab/7378/movies.htm has Bogart playing Chess in all of 'Casablanca'(1942), 'Knock on Any Door'(1949), and 'Left Hand of God'(1955) films. For Chess Variant, see 217 The Blood of Heroes. http://www.chessdryad.com/articles/wall/art_01.htm -- his Bogart and Chess has shot of Peter Lorre and Humphrey Bogart at Chess in 'Casablanca'.
The falcon is an interesting piece! Arriving at the same square in different ways is a clever concept. I would be curious to know how a top computer would rank them compared to a knight.
Well, computer programs usually do not rank pieces, the programmers usually do that for them. The quality of play also turns out to have surprisingly little effect on piece values.
Fairy-Max self-play showed the Falcon value to be slightly above that of a Rook, perhaps equal. (Pieces close in value tend to pull their values towards each other, complicating the measurement.)
Values -- there H. G. Muller had the values Rook and Falcon worked out 9 years ago. Not much progress has been made, but ultimately I bet texts will show Falcon 5.5 or even 5.75 to Rook 5.0, because of forks Falcon makes with longer term planning the only few programs yet are not told about. But Muller right away was closer than the 5.0 R and 7.0 F I used in the nineties. Now I consider myself player and have lost about 2 to 14 wins at Game Courier.
Well, Falcons make forks, but Rooks make those to a lesser extent too (e.g. when they enter the 7th rank and attack Pawns on both wings). And in addition they can make skewers. All of which also benefits from long-range planning (to open files, make batteries...). To a human the bent motion of Falcons (and even Knights) might seem less obvious than the straight path of Rooks, but to a computer they are just sequences of moves,and it calculates them with precision no matter how far it has to think ahead. So I don't expect specific knowledge on the pieces to make much difference. Also note that even when the Falcon is only marginally more valuable than a Rook, there would be awfully little to fork that would make a juicy bite when protected.
Hello,
H.G.,
Could you explain the betza notation for falcon for us the more lazy ones.
I was thinking of something more like lame Z or C (L in older version) rather than what you posted which is something I don't understand, and why your choice for the used version , as I'm sure more people could think at more solution to writting the falcon move.
The problem is that 'lame' is an ill-defined concept for 'oblique' moves (i.e. not strictly orthogonal or diagonal). E.g. look at the Xiangqi Horse (Mao). It is a lame Knight. But that in itself doesn't tell you that it can be blocked on the W; squares, rather than the F squares, like the 'Moa'. Or whether it is multi-path, and can only blocked by occupying both squares. So one has to specify the path, square by square.
This can be done by describing the move as a sequence of steps. The Mao takes one orthogonal step, followed by an outward diagonal one. This can be described by afsW: 'a' (= 'again') for indicating there are two steps, and 'fs' behind it to indicate how it bends. So the Mao is described as a two-step Wazir that bends 45 degrees after the first step. The default modality for the first step is 'm', (because another step follows), so it does not have to be written. The Moa would be afsF, and the Moo would be afsK, so it can start in any of the 8 directions.
The notation for the Falcon used here is an extension of that to 3 steps (so there are two 'a', each followe by two descriptions of how the trajectory bends). There are 3 path types: bend early, bend late and bend twice. E.g. bend early can be written as afsafK: the second step forward-sideway compared to the first, and the third 'forward' compared to the second. Unfortunately the twice-bent path has to be written as one left+right and one right+left path, as there is no way to indicate in the third step "now bend in the opposite direction". This is how I finally arrive at afsafKafafsKaflafrKafraflK.
The additional 'm' written in the diagram are really redundant, and act as a reminder only. For non-final leg 'm' is the default, like for a final (or only) leg 'mc' is the default modality. That makes the XBetza system tuned to representing lame leapers. Pieces that capture or hop on their way do need extra modifiers to indicate that.
So, if I want to use the falcon in a commercial game, can I do it or should I pay money for it.
So, if I want to use the falcon in a commercial game, can I do it or should I pay money for it.
It's ok, the patent has expired: https://patents.google.com/patent/US5690334A/en?oq=5690334
Thanks Greg!
The Falcon is a generalization of the Korean Elephant.
A 3d version of the Falcon that would make sense, would also incorporate root-3 diagonal “Unicorn” moves. A combination of Duke’s Falcon with Gilman’s Vulture, Kite, and a piece Gilman surprisingly didn’t name (I think it would be a “Multipath Stepping Fortnight”, if my Gilmanese is correct). Gilman calls the leaping version of this piece a “Trison”.
Which of the two possible stepping Fortnights do you mean?
- The one taking one each of wazir, ferz, and viceroy steps? Given that Gilman starts from the various bent/crooked pieces which only have two kinds of step, this is probably a bit out of scope (corkscrew pieces with one kind of step aside).
- The one taking three Ferz steps, two in one direction and one at 60° (dual to the hex Shearwater)? That'd match the two‐of‐one‐and‐one‐of‐the‐other pattern of the Falcon, and arguably as a Shearwater extrapolation could be nameworthy (I'd've suggested Fulmar, a family of birds related to shearwaters beginning with the F of fortnight as shearwater begins with the S of sennight, but it's already taken (albeit with unclear etymology) for Zephyr+Lama; perhaps Petrel, the group including the fulmars and still beginning with a labial consonant, would suit it?), but presumably he either didn't consider two diagonal directions different enough without the AltOrth‐ness, or it just didn't occur to him. And there are also Nonstandard Diagonals at small enough angles (35°) for more Falcon‐like pieces there too
For a stepping‐Trison component I'd probably choose the former, but individually both are interesting enough imo. There's still a few bird‐of‐prey names unused I think so if one were keen to name them in Gilmanesque fashion all that'd remain would be finding a game to use them in…
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