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Comments by GeorgeDuke

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April_Fool_at_ChessBase[Subject Thread] [Add Response]
George Duke wrote on Fri, Mar 31, 2017 12:34 PM UTC:

April spoof at Chessbase in a few hours, anyone thinking of outdoing them please feel free  putting it here.  See past examples in this thread from a match on an oil rig to Martian chess.  Make up an archaeological find of Neanderthal game artifacts or something. Chessbase April Fool to follow here for sure once they swink everybody again.


ProbThemesThree[Subject Thread] [Add Response]
George Duke wrote on Thu, Mar 30, 2017 04:51 PM UTC:

Bo, the reigning champion, cried again that White's Pawns were not dispersed. Still squelched towards getting a decisive outcome, the Club in March set out all Berolina Pawns. Also part of full complement for both forces, there is Flamingo (1,6)leaper b7, Flamingo. Also Cannon d7 and Dabbabah Rider e7, DR_versus_DBT.

Dragon b6 the five-stepper, Elbow Bishop c6, Elbow Rook g5, Crooked Rook h5, Alfil h2, Gnu e4: N+Camel. All Pawns are Berolina.

If Rook moves, Elbow Bishop has path. If P-b4, Dragon. If P-d4 or P-d3, Cannon. If Gnu-e4 to any one of its fourteen(!) available squares, Elbow Bishop again checks King -- making Gnu move illegal too. If Dragon tries moving, Crooked Rook gets pathway. If Pawn-g1, Elbow Rook thwarts. King is unable to move because of the three Flamingo, Dabbabah-Rider and Elbow Rook.

Hurry up Bo? Locked and gridlocked again, the tournament was postponed until April.


George Duke wrote on Wed, Mar 29, 2017 08:22 PM UTC:

The Club met again the next month to settle the championship in one do-or-die game. White is to open the following array.

Flamingo d8 is (1,6)leaper this time. Dragon g6 enforced five-stepper. Scorpion a5 enforced four-stepper. Elbow Bishop e5 mandatory 90d. Elbow Rook e1 mandatory 90d. Grasshopper h5. Wazir e2.

If Knight moves, Grasshopper checks(illegal). If DxD, Elbow Rook has a pathway. Any King move is precluded by Flamingo or else Elbow Bishop. Moving Wazir or Elbow Bishop gives Dragon pathway(s) always combining both orthogonal and diagonal. To move one Scorpion lets in Dragon again, and the other Scorpion admits one Black Scorpion. Trying the White Grasshopper would hopelessly discover both Black Scorpions.

"Hustle up, Bo, make your move."


George Duke wrote on Tue, Mar 28, 2017 07:18 PM UTC:

Dragon on b6 is the 5-square mandatory plural-path slider, Dragon. Crooked Bishop aka Boyscout is described by Betza, and the Elbow Rook always must make one 90-degree turn, and Ultima Immobilizers are common to both sides. Ibis at f8, described by Gilman in "M&B Ungulates" chapter as Namel, is the same earlier (1,7) leaper Ibis. Both sides have full complement in reasonable CV, but White cannot move. Beyond zugzwang, there can be no play whatsoever. If Wazir-d3 moves or Pawn-d4, Dragon has pathway to check. If Wazir-g2, Crooked Bishop could mate. If Knight moves, the same Crooked Bishop prohibits it. If Ferz e1-d2, Elbow Rook. If Dragon, Rook attacks King. If King would move, Ibis and the Elbow Rook prevent it. Total gridlock pre-existing on behalf of White in 64.

"Would you ...play already?" yells impatient Black.


George Duke wrote on Mon, Mar 27, 2017 09:50 PM UTC:

A Chess Puzzle was to devise a game on 8x8 with no legal moves for White. All 8 Pawns(any kind) and 8 pieces(any mix of types) must start in own half of board, King only required to be within back-rank. Use already-invented pieces and Rules. Describe an initial set-up. This has Ibis(1,7) on f8, Crooked Bishop f7, Dragon b6, Elbow Rook c6, Immobilizer b5, Wazir d3, Ferz e1 and so on. To follow is the justification that it is solution.


On Designing Good Chess Variants. Design goals and design principles for creating Chess variants.[All Comments] [Add Comment or Rating]
George Duke wrote on Mon, Mar 27, 2017 06:13 PM UTC:

Contrary to Kevin, Rococo is the most played not the least played lately in recent finished Games (rhymes with Trump and crowd size). The article is too lengthy for having two inventors. My top CV of all 3000 in sixty words, enough to start playing immediately, the whole simplified rules:

All pieces have to move the same  like Queen but land on border square only if/in capturing. Pieces capture along Q lines like in  Abbott's Ultima and in Parton's classic CVs. See Advancer, Withdrawer, Chameleon, Swapper, Immobilizer capturing in video. King is f.i.d.e. and the only one moving and capturing the same. Cannon Pawn is specialized one- or two-stepper, also having unique capture.


Partnership Mitregi. Unthemed 4-player variant with most pieces always moving toward or across the River. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
George Duke wrote on Tue, Mar 21, 2017 07:45 PM UTC:Poor ★

Yes Charles, I think it would be fine to drop this (he asks advice on this in red). "sidewaysmost, 'Halfcamel', 'skewed Dabbabah', 'Colourbound analogue' and 'river-straddling zigzag' are turgid and off-putting without any of Ralph's deadend tongue in cheek. However other CVs that get deleted also lose the scathing review.


Lene Hau Chess. Pieces take several turns for doing one move, going only one square per turn. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
George Duke wrote on Thu, Mar 16, 2017 08:40 PM UTC:

Lene Hau and light slowed to a fraction of 3.00x10^8 m/s, http://www.physicscentral.com/explore/people/hau.cfm, and so this CV by Betza.  Rook piece takes 7 moves from b1 to b8 for instance. Also Liar's_Chess and

Hyperspace_Chess.


Jester Chess. Large variant, with four new pieces including Jester that imitates opponents last type of move. (10x11, Cells: 110) [All Comments] [Add Comment or Rating]
George Duke wrote on Wed, Mar 15, 2017 08:36 PM UTC:

Jester mimics method of movement of last opponent's piece moved. Short-range Archer moves without capturing or captures without moving. It is two moves per turn until one's first capture, a rule which could benefit some other large chesses.


Keyles. Large variant with special king capture rule. Variant of Quex. (10x10, Cells: 100) [All Comments] [Add Comment or Rating]
George Duke wrote on Wed, Mar 15, 2017 08:28 PM UTC:

Quex has to be read too to understand the moves in Keyles.  Keyles unique win conditon is to get King across the board.  Whenever King is captured along the way, he returns replacing another chosen piece.


Three Player Chess. Commercial Chess variant for three players.[All Comments] [Add Comment or Rating]
George Duke wrote on Wed, Mar 15, 2017 08:19 PM UTC:

Zubrin got his board patented to show who invented it.  Most applications get rejected after year-long background check of "prior art."   In informal NextChess project, Three Player has been ranked in the top ten:  " (1) Bifurcators > (2) Great Shatranj > (3) Time Travel > (4) Mastodon > (5) Three Player > (6) Unicorn Great > (7) Sissa > (8) Big Board > (9) Eurasian (10) Schoolbook ."


Flipworld. Pieces are on both sides of a disc. (2x(6x7), Cells: 84) [All Comments] [Add Comment or Rating]
George Duke wrote on Wed, Mar 15, 2017 07:24 PM UTC:

Another interesting circular CV for this week's Pi Day.  RNBKQP get two additions, weak Tocop and strong Starman, which could be explained better. The inner circuits will have most of the action. Really the Nexus, or tunnel, or lift, is not common to the different teams Topside and Flipside, because player specifies which it is on if a piece stops there. Tesselations mixed square- and triangle-boards, like Round Table Chess, stretched topologically to over-all roundness, can play with more clarity than hexagonal ones. Yet Flipworld may not have erased all ambiguity about transit through its six Nexus cells(triangles).


Round Table Chess. Chess variant on a board with round and square part. (Cells: 92) [All Comments] [Add Comment or Rating]
George Duke wrote on Tue, Mar 14, 2017 04:37 PM UTC:

3-14-17 is Pi Day. This board-variety brings some spaciousness to usually-constricted play on ''round'' boards.


Gess. A Chess variant played on a Go board where pieces are collections of go stones. (18x18, Cells: 324) [All Comments] [Add Comment or Rating]
George Duke wrote on Mon, Mar 13, 2017 06:39 PM UTC:Excellent ★★★★★

Player must keep a Ring of 3x3 made from the stones, and to win is to destroy opponent last Ring.  Stones move in 3x3s. This appeared first in Spektrum der Wissenschaft.


Gridlock Chapter 5. Missing description[All Comments] [Add Comment or Rating]
George Duke wrote on Mon, Mar 13, 2017 06:17 PM UTC:

Gridlock Chapter 5 has the Great Diagonal Wall.  "The other game promised you up to nine Queens. Did it ever deliver?"


Influence Chess. Pieces on the top or bottom layer influence which chess pieces may move on the middle layer. (3x(4x7), Cells: 84) [All Comments] [Add Comment or Rating]
George Duke wrote on Sun, Mar 12, 2017 07:59 PM UTC:Excellent ★★★★★

 A square that a main Middle board piece sits on has corresponding square in Above and Below boards. These locations (departure square) 'influence' whether a move can be considered or not. To make the move, it also must be legal within the Middle board. Sometimes the Above or Below two piece-types move their one- or two-square way, and other times they duplicate a Middle board movement. Rules may very well be interpretable (including moving opponent's piece) in all cases.


Gridlock Chapter 4. Missing description[All Comments] [Add Comment or Rating]
George Duke wrote on Sun, Mar 12, 2017 07:52 PM UTC:

 'Half of my team eats drinks, and sleeps Gridlock Chess (they are trying to catch up). The other half of the team is the best'.


Giant-King Chess. Kings take up four squares each, all of which must be attacked to check. (10x10, Cells: 100) [All Comments] [Add Comment or Rating]
George Duke wrote on Fri, Mar 10, 2017 10:06 PM UTC:Excellent ★★★★★

Pawns do not promote. The Pawns reaching promotion zone cause other pieces to promote and the Pawn leaves the board. The four-square occupation of King requires all four attacked for mate.


Eight-Stone Chess. On an 8 by 9 board with eight neutral stones. (8x9, Cells: 72) [All Comments] [Add Comment or Rating]
George Duke wrote on Thu, Mar 9, 2017 09:36 PM UTC:

From 1999 year check out how piece may swap with Stone in place of regular move.


Free Chess. Dissociate movement-abilities from physical pieces. The opening setup is an empty board. (13x13, Cells: 156) [All Comments] [Add Comment or Rating]
George Duke wrote on Thu, Mar 9, 2017 09:28 PM UTC:

Free Chess is the only game made by Scarmani.  There is attribute reserve of 32.  A turn player places an attribute or moves a piece.  Several may stand on the same square because they may be attributes or combinators. A combinator-attribute may be captured without its even being a piece. One clever rule: an attribute's, placed on opponent's piece, subtracting that one's same attribute. Opawns are 'o'mni-directional.


SuperKing. Kings can move like queens, but not through check. (8x8, Cells: 64) [All Comments] [Add Comment or Rating]
George Duke wrote on Thu, Mar 9, 2017 09:01 PM UTC:

The SuperKing moves like a Queen but cannot move through check.  Gilman clarifies in the one other comment that that means Kings can face each other along radial lines, unlike Xiangqi.


Attrition Chess. Played on an 11x10 board, each player starts with 33 pieces. (11x10, Cells: 110) [All Comments] [Add Comment or Rating]
George Duke wrote on Thu, Mar 9, 2017 08:39 PM UTC:

In the one other comment here, Charles Gilman liked this year 2000 CV, because of the Bishops. Notice the four Bishops are arranged symmetrically and on opposite color bindings even though there are odd number of files, eleven. Beyond that novelty, the goal of bare King requires each player to give up a piece each turn in addition to regular move. This was a 32-turn contest, and Attrition games run a maximum of 32 moves. Squire has its own move as medieval "Man" and also enhances the side's Knight move two different ways when the two are adjacent (see the effect in Attrition rules). That keeps Knight apace the others on large board without adding some arbitrary Camel option.


Catastrophic 8x8 Chess. Mathematician Missoum gives a new type of chessboard.[All Comments] [Add Comment or Rating]
George Duke wrote on Mon, Mar 6, 2017 09:06 PM UTC:

The criticism was there are no discernable complete Rules, but Jianying Ji once explained Missoum's intent:

"Rich I think is more correct, this is an attempt to use catastrophe theory to chess. I'm not sure it succeed in anyway. Essentially the author is arguing that if a move is bad if it crosses a fold in the 'evaluation surface', that is the surface created by giving every square a value depending on its importance. The surface is then warped to show moves that would cause irreversible changes in evaluation. Missoum applies this to one move in one game which allows for the nice graphics he drew. However as a general theory I do not see how one would begin to create one. Personally some kind of quantum set theory or more classically combinatoric game theory is far more apt. "


8x8 Hyperbolic Chess. Mathematician Missoum has a board based on hyperbola.[All Comments] [Add Comment or Rating]
George Duke wrote on Mon, Mar 6, 2017 08:55 PM UTC:

Hyperbolic Chess 8x8 was invented 20 years ago 1997.


Sequence of Fibonacci and Lucas Chess Design Games. Variants based on Fibonacci numbers.[All Comments] [Add Comment or Rating]
George Duke wrote on Mon, Mar 6, 2017 08:40 PM UTC:

The only other comment all twenty years(!) on this was actually recent last fall. A. Missoum made these "Fibonacci-Lucas CVs" if they can be deciphered.


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