Monday, 12 February 2018

National Chess Library

Since September last year I have been travelling weekly by bus to Battle to help with the arrangement of the National Chess Library books on the shelves. The Library is now in the Offices of the English Chess Federation at the Watch Oak. Here is a plan I made of the current arrangement of the subjects on the shelves.

The Library is made up of a number of separate collections, the largest of which are the ECF's own collection and that from Harry Golombek. The books are labelled to show which donor collection they are from, and are now mostly arranged on the shelves by subject rather than collection. Because of the way the Library has accumulated there are many duplicates. Duplicate periodicals are being stored in the loft and duplicate books are on the bottom shelves. The Library is open for visitors, but the offices are closed at week ends.

Sunday, 28 January 2018

Knight's Tour Book Contents

I must try to post something each month at least. New Year's Resolution.
So here is the list of contents of my Knight's Tour Notes book as it now stands.
It is now back to a single book of around 800 pages.

z Theory of Moves 5 Nets, Boards, Moves, Pieces, Freedom, Mobility,
z Theory of Journeys 12 Shortest Path, Angles, 3-, 4-, 6-, 8-Moves, Touring Tests.
z Theory of Magic 24 Magic Arrays, Magic Rectangles, Magic Squares, Step Sidestep.
z Wazir Tours 36 Labyrinths, 6×6, Non-Intersecting, Around the Rocks, Snakes, Figured.
z Knight Move Geometry 53Nets, Triangles, Quadrangles, Polygons, Intersections.
z Symmetry 58 Symmetry, Coding, Generic, Central Angles, Straits and Slants.
z Shaped Boards 68 Octonary 72 Biaxial 80 Birotary 98 Rotary 120 Axial 132 Unary.
z Rectangular Boards 156 Borders, Schwenk Theorem, Symmetries, Oblongs
z Oblong Boards 159 3-rank 180 4-rank, Mediaeval 4×8 202 5-rank  6-, 7-, 8-, up to 24×37.
z Odd Square Boards 217 3×3, The 5×5 Board, 7×7,9×9, 11×11, 13×13, 15×15.
z The 6×6 Board 225 quaternary, binary, angle method, slants, open 3-slant, semimagic
z 6×6 Asymmetric 232 Closed Tours: 4-slant, 6-slant, 8-slant, 10-slant, 12-slant.
z Earliest Knight's Tours 272  Adli. Suli, Mediaeval mss, Aladdin, Nikolai, Nilakantha
z Rediscovery (1725-1825) 275 Euler, Vandermonde, Collini, Warnsdorf, Generation Rules.
z Squares and Diamonds 291 FPH, von Schinnern, Ciccolini, Franz, Wenzelides, Jaenisch
z Roget's Nets 300 Straits & Slants, 3-slant, Reentrant, S&D, Given slants, Max slants
z Pseudotours 309  Simple Linking 311 Octonary 317 Crosspatch 319 Collinian
z Double Halfboard Tours 323 Symmetric Rhombic Halfboard.
z More Squares and Diamonds, 330 Symmetric Rhombic Non-halfboard
z Compartmental 342 Tours from Crosspatches, 346 Enumeration of 8×8 Tours
z Graphic Tours: 348 Directions, Intersections, Circulation 351 Angles Max and Min
z Shapes 359 Triangles, Quadrangles 362 Stars 364 Pictorial 365 Monograms.
z 8×8 Asymmetric Tours 368 Legendre, Rothe, Bilduer, Maximum Asymmetry.
z Near Symmetry 370 Bergholtian, Octonary, Quaternary, Axial, Rotary, Diagonal
z 8×8 Symmetric Tours 382 History 391 Symmetrisation, Given Centre 396 All Centres
z Mixed Quaternary Symmetry 406 h:j:k types: h=1, k=3, h>1 k>3, h=3, j=4, k = 5
z Quaternary Pseudotours, 434 8-fold, 4-fold, 2-fold, 1-fold, Table.
z Tours from QP 489 Aladdin, Vandermond, Non-Crossing, Jaenischian, 493 Other QP.
z Lettered Tours 497 Cryptotours, Alphabetical Tours, Chess Art Here??
z Figured Tours 507 Historical development.
z Magic 8×8 Knight Tours 524 Beverley, Wenzelides, Mysore, Jaenisch, Le Siecle,
z Ligondes 1911, Lehmann 1933, Murray 1936, Marlow 1987, Roberts 2002, Completion 2003.
z Catalogue of the 8×8 Magic Knight Tours 552 Historical, Geometrical, Arithmetical.
z Theory of Magic Knight Tours 578 Existence, Braids, Quartes, Testing Procedure.
z Large Even Square Boards 588 10×10 597 12×12 612 14x14 614 16×16 622 Even Larger
z Leapers 629 Camel. Shaped, Zebra, Zebra-rider,.Giraffe, Antelope, {1,5}, {2,5}, {1,6}, {1,7}.
z King Tours 641 Knots, 2×n  3×n  4×n  5,6×n  7×n, 8×8  Alternating, Figured
z Magic King Tours 655 Magic  Biaxial Diamagic  Axial Diamagic  Larger
z Double-movers 661 2-move R, 2-Move Q, 664 Emperor, Templar, Empress
z 673 Nightrider, Lancelot, Prince, Hospitaller, Night-Commuter
z 675 Caliph?, Gnu, Bison, Fiveleaper, Root-50, Root-65, Root-85.
z Triple-movers 683 3-move R, Hyperwazir 3-Move Q, Pterodactyl,
z Triple Knights WDN, WTN, Centaur, WAN, DFN, TFN,
z Quadruple-movers 692 4-move Magic R Tours, 4-MoveQ, WDTN,
z Multi-movers 704 5-6-MRT, 5+MQT, Raven, Amazon, Wizard.
z Alternative Worlds 722 Non-Crossing Paths 730 Rider Crossovers 731 Hoppers
z New Boards 733 Bent Boards 736 Space Chess, Higher Dimensions, 745 Honeycombs,
z End Notes 751 Bibliography 787 Solutions 790 Glossary 796 Index

The z is a wingding knot symbol that hasn't come out.


Wednesday, 4 October 2017

Catching Up

I can't seem to keep up regular posts here.

On 12 July I went into Eastbourne Hospital expecting to have an operation, but after discussion with the surgeon it was decided to postpone it for further tests that are now due on 18th October.

On 15 July I went to a l0cal chirch, St John's Brittany Road, for a concert by Hastings Sinfonia. I tweeted that they should be called sinfffonia since they were far too loud for me. On 16 Juky I went to Eastbourne for a concert at the bandstand. That was more enjoyable. So much so that I went to several other band concerts there on other Sundays. Always preceded by fish and chips. My brothers also came for a meal on the 23rd but didn't stay for the music.

In August 18th to 20th I went to play in the Minor section of the Thanet Chess Congress. However I could only manage three draws against weaker opposition, which decided me not to renew my membership of the Hastings Chess Club in September, having taken a rest from it last year.

During the week beginning 11 September I went to Battle to help with putting the National Chess Library on shelves that had been installed in the English Chess Federation offices there. Good progress was made, though there are still some further bookcases to be set up.

Because I had been thinking of moving back to the midlands, I took it into my head to order a mobile phone. However while chasing after the DRD delivery driver, who was trying to deliver the parcel to the wrong address, I missed the bottom step and slipped, spraining ankle. Later I also returned the phone since I couldn't work out how to use it. So not a happy time. 

More updates to come.

Friday, 7 July 2017

Sources of Magic Knight Tours

List of Sources of Magic Knight Tours in Historical Sequence

Some may of course have been published in an earlier source not yet found

Can any one help to trace the original publication sources of the following 14 tours?

The codes on the left are the names given to the tours in my 1986 catalogue in Chessics #26

Many tours appeared in other French newspapers that I have not located online.


SOURCES UNKNOWN

05a Bouvier (Adsum) 1876?

00i Unknown Composer 1880/1881?

00c Francony (Celina) 1881?
05f Francony (Celina) 1881?
27k Francony (Celina) 1881?
05c Francony (Celina) 1882?
05e Francony (Celina) 1882?
23a Francony (Celina) 1882?

27p Reuss (X a Belfort) 1883?
27q Reuss (X a Belfort) 1883?
27r Reuss (X a Belfort) 1883?
27s Reuss (X a Belfort) 1883?

00f Ligondes (Palamede) 1883?
23b Ligondes (Palamede) 1884?


SOURCES KNOWN

27a Beverley Philosophical Magazine 1848

12a Wenzelides Schachzeitung Feb-Mar 1849 p.94-97
12b Wenzelides Schachzeitung 1850 Fig. 99
27b Wenzelides Schachzeitung 1850 Fig 107

00b Mysore Silk (now in Crumiller Collection) 1852

00m Wenzelides Schachzeitung May 1858 Fig.A
12e Wenzelides Schachzeitung May 1858 Fig.B
12m Wenzelides Schachzeitung May 1858 Fig.C

12o Jaenisch Chess Monthly 1859
12n Jaenisch Chess Monthly 1859

00a Jaenisch Treatise 1862 Fig.49
27c Jaenisch Treatise 1862 Fig 55
27d Jaenisch Treatise 1862 Fig 56
00e Jaenisch Treatise 1862 Fig.62

27i Exner Rösselsprung als Zauberquadrat 1876 (not seen)
34a Exner Rösselsprung als Zauberquadrat 1876 (not seen)
34e Exner Rösselsprung als Zauberquadrat 1876 (not seen)

05b Caldwell English Mechanic 1879

12c Béligne Le Siècle ¶1042 5/12 Mar 1880

00j Reuss (X à Belfort) Le Siècle ¶1252 5/12 Nov 1880
27e Reuss (X à Belfort) Le Siècle ¶1258 12/19 Nov 1880
27f Reuss (X à Belfort) Le Siècle ¶1270 26 Nov/3 Dec 1880 (< Wihnyk 1885)
00d Reuss (X à Belfort) Le Siècle ¶1276 3/10 Dec 1880

05d Bouvier (Adsum) Le Telegraphe ¶1232 or ¶1239) cited in Le Siecle 1882
[Conjecture: second problem may be Francony's discovery of the Mysore tour]

12f Jolivald (de Hijo) Le Siecle ¶1726 12/19 May 1882
12d Jolivald (de Hijo) Le Siecle ¶1732 19/26 May 1882
12g Jolivald (de Hijo) Le Siecle ¶1738 26 May/2 Jun 1882
12h Jolivald (de Hijo) Le Siecle ¶1744 2/9 Jun 1882

27j Beligne Le Siecle ¶1966 16/23 Feb 1883 (Murray 1881)

27l Francony (Celina) Gil Blas ¶1156(1) 23 Feb / 2 Mar 1883 (Murray 1881)
27m Francony (Celina) Gil Blas ¶1156(2) 23 Feb / 2 Mar 1883 (Murray 1882)
Note: 27m is also in Le Siecle ¶1872 at same dates 23 Feb / 2 Mar 1883
where it is attributed to Adsum (Bouvier).

05g Ligondes (Palamede) Le Siecle ¶1996 23/30 Mar 1883

34b Ligondes (Palamede) Le Siecle ¶2086(1) 6/13 Jul 1883
34c Ligondes (Palamede) Le Siecle ¶2086(2) 6/13 Jul 1883
[2086(3) =34a, anticipated by Exner 1876]
[ 2092(1) = 27i, anticipated by Exner 1876]
34d Ligondes (Palamede) Le Siecle ¶2092(2) 13/20 Jul 1883
[2092(3) = 34e, anticipated by Exner 1876]
[These two problems consisted of three tours in one diagram.]

14b Ligondes (Palamede) Le Siecle ¶2098(1) 20/27 Jul 1883
14a Ligondes (Palamede) Le Siecle ¶2098(2) 20/27 Jul 1883
23l Ligondes (Palamede) Le Siecle ¶2098(3) 20/27 Jul 1883
23k Ligondes (Palamede) Le Siecle ¶2098(4) 20/27 Jul 1883
23j Ligondes (Palamede) Le Siecle ¶2098(5) 20/27 Jul 1883
23i Ligondes (Palamede) Le Siecle ¶2098(6) 20/27 Jul 1883
23g Ligondes (Palamede) Le Siecle ¶2098(7) 20/27 Jul 1883
23h Ligondes (Palamede) Le Siecle ¶2098(8) 20/27 Jul 1883
23e Ligondes (Palamede) Le Siecle ¶2098(9) 20/27 Jul 1883
[This problem shows 9 tours in one diagram, 3x3 letters in each cell]

23d Ligondes (Palamede) Le Siecle ¶2110(1) 3/10 Aug 1883
25a Ligondes (Palamede) Le Siecle ¶2110(2) 3/10 Aug 1883
[¶2110(3) = 05d which is anticipated by Bouvier 1882]

23m Ligondes (Palamede) Le Siecle ¶2116(1) 10/17 Aug 1883
23n Ligondes (Palamede) Le Siecle ¶2116(2) 10/17 Aug 1883
23f Ligondes (Palamede) Le Siecle ¶2116(3) 10/17 Aug 1883

03f Ligondes (Palamede) Le Siecle ¶2122(1) 17/24 Aug 1883
01b Ligondes (Palamede) Le Siecle ¶2122(2) 17/24 Aug 1883
00g Ligondes (Palamede) Le Siecle ¶2122(3) 17/24 Aug 1883

14c Ligondes (Palamede) Le Siecle ¶2128(1) 24/31 Aug 1883
01c Ligondes (Palamede) Le Siecle ¶2128(2) 24/31 Aug 1883
23c Ligondes (Palamede) Le Siecle ¶2128(3) 24/31 Aug 1883

34f Ligondes (Palamede) Le Siecle ¶2242(1) 4/11 Jan 1884
14d Feisthanel Le Siecle ¶2242(2) 4/11 Jan 1884

34g Ligondes (Palamede) Le Siecle ¶2248 11/18 Jan 1884 (Murray 1883)

03e Ligondes (Palamede) Le Siecle ¶2254 18/25 Jan 1884

03a Ligondes (Palamede) Le Siecle ¶2260 25 Jan/1 Feb 1884

03d Ligondes (Palamede) Le Siecle ¶2266(1) 1/8 Feb 1884
01a Ligondes (Palamede) Le Siecle ¶2266(2) 1/8 Feb 1884
03c Ligondes (Palamede) Le Siecle ¶2266(3) 1/8 Feb 1884

12i Bouvier (Adsum) Le Siecle ¶2326(1) 11/18 Apr 1884
12j Bouvier (Adsum) Le Siecle ¶2326(2) 11/18 Apr 1884
00l Bouvier (Adsum) Le Siecle ¶2326(3) 11/18 Apr 1884

12k Francony (Celina) Gil Blas ¶1582(1) 10/17 May 1884 (Murray 1882)
00k Francony (Celina) Gil Blas ¶1582(2) 10/17 May 1884
12l Francony (Celina) Gil Blas ¶1582(3) 10/17 May 1884 (Murray 1882)

01e Grossetaite Figaro 1896 (H84) (not seen) = number 84 discovered

00h Ligondes (Palamede) La Mode Du Petit Journal 1906 (not seen)
23o Ligondes (Palamede) La Mode Du Petit Journal 1910 (not seen)
23p Ligondes (Palamede) La Mode Du Petit Journal 1911 (not seen)

16a Lehmann Le Sphinx Aug 1933 (not seen)

27g Murray PFCS ¶2108 #16 Feb 1936 p.166
27h Murray PFCS ¶2239 #17 Apr 1936 p.177
27n Murray Fairy Chess Review vol.3 ¶2350 #1 Aug 1936 p.3
27o Murray Fairy Chess Review vol.3 ¶2351 #1 Aug 1936 p.3
[Other tours in this series proved to be anticipated]

01f Murray Fairy Chess Review vol.4 ¶4132 #3 Dec 1939 p.43
12p Murray Fairy Chess Review vol.4 ¶4133 #3 Dec 1939 p.43
01d Murray Fairy Chess Review vol.4 ¶4134 #3 Dec 1939 p.43
03g Murray Fairy Chess Review vol.4 ¶4132 #6 Jun 1940 p.93
[The Dec 1939 issue was the TRDFCR dated 28 Nov for Dawson's birthday]

23q Marlow The Games and Puzzles Journal #1 Sep-Oct 1987 p.11
01g Marlow The Games and Puzzles Journal #1 Sep-Oct 1987 p.11
25b Marlow The Problemist Vol.12 #19 Jan 1988 p.379
01h Marlow The Problemist Vol.12 #19 Jan 1988 p.379
03b Marlow The Problemist Vol.12 #19 Jan 1988 p.379

01i Roberts The Games and Puzzles Journal #25 (online) Jan-Feb 2003
14e Roberts The Games and Puzzles Journal #25 (online) Jan-Feb 2003

00n Mackay, Meyrignac & Stertenbrink [website] 18/19 Jun 2003
14f Mackay, Meyrignac & Stertenbrink [website] 21 Jun 2003
27t Mackay, Meyrignac & Stertenbrink [website] 24 Jun 2003
00o Mackay, Meyrignac & Stertenbrink [website] 1 Jul 2003
07a Mackay, Meyrignac & Stertenbrink [website] 1 Aug 2003
[The results were reported here: http://magictour.free.fr/]
[The second numbering of 00n was spotted by me on 19 Jun]

Total = 108

Minor corrections 11 July 2017.

Thursday, 22 June 2017

Research in French Newspapers

I have been looking through the issues of Le Siecle in which H. J. R.Murray reported that A Feisthamel published the magic knight tours as they were discovered. However I find that most of the tours published there are of the two or four knight variety that I prefer to call Emperor tours, since they use rook moves to link the ends of the knight sections. The tours appear mostly in the Friday section of Feisthamel's puzzle column. However they are not presented as tour diagrams, instead they are all cryptotours whose solutions, besides delineating the tours, also serve as a word puzzle in themselves such as an anagram, though these puzzles all seem pretty feeble to me. The issues can be accessed via Gallica here:

http://gallica.bnf.fr/ark:/12148/cb32868136g/date

In the issue for 3 Feb 1883 Feisthamel also lists a number of other French newspapers or magazines in which toors were published. These include the titles National, Globe, Soir, Telegraphe, Gil Blas, Gaulois, Clairon, Etoile francaise, Paris Journal and two others where single examples appeared. So far I have only located one of these online:Le Gaulois, where the puzzles appear on Mondays and are in two separate series (Jeux D'Esprits and Passe-Temps Hebdomadaire) which alternate fortnightly.

http://gallica.bnf.fr/ark:/12148/cb32779904b/date.langFR

This includes King tours by R. Dubief and by a Monsieur Galtier, the latter being magic tours.
Much scope for further historical research here!

Wednesday, 10 May 2017

Final Dawsonian 6x6 Tours

This set of four Dawsonian tours on the 6x6 board complete my search for solutions.


As with the previous batch of four they differ only in the path taken by the 25-36 linkage.

Since my search has been made "by hand" not by computer programming,
it is quite possible I may have missed one or more solutions,

I also recorded a number of "near-misses" where one of the knight moves
is replaced by some other, such as a wazir, rook or zebra move,
bit these don't seem to be of any particular interest.


Monday, 24 April 2017

More 6x6 Dawsonian Tours

Here is another knight tour on the 6 by 6 board with the square numbers in a closed knight circuit.

These four use the same circuit but in a different position on the board, and numbered from a different point.
They differ only in the route taken from 25 to 36.