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domenica 15 febbraio 2015

Baadur Džobava un GM fuori dal coro

 

Quando abbiamo esaminato alcune partite del 77th Tata Steel Chess Masters, non abbiamo potuto non notare il particolarissimo stile del GM Baadur Džobava, di cui non avevamo mai sentito parlare. Dopo essere stati positivamente colpiti dalla visione dei vari incontri del giocatore, incuriositi, abbiamo deciso di colmare la lacuna documentandoci sul GM. Ecco il suo profilo in italiano tratto da Wiki:

Baadur Džobava (rus. Баадур Джобава, georg. ბაადურ ჯობავა; Gali, 26 novembre 1983) è uno scacchista georgiano (noto come Baadur Jobava secondo la grafia inglese).
È stato campione georgiano nel 2003 e nel 2007. Ha partecipato a quattro Olimpiadi degli scacchi (2000, 2002, 2004, 2006), vincendo due medaglie d'oro individuali nel 2004, come miglior quarta scacchiera e come miglior prestazione Elo, con 8,5 punti su 10.[1] Nel 2006 ha vinto il prestigioso Open Aeroflot.[2]
È diventato noto per la sua preparazione delle partite dopo aver battuto il Grande Maestro Evgeny Bareev in una linea lunga 34 mosse, interamente preparata, nel 2003.[3] Nel 2004 ha vinto in modo simile alle Olimpiadi contro Aleksandr Griščuk.[4]
Secondo il database di chessgames.com, Jobava ha, tra i Grandi Maestri attualmente in attività, la maggior percentuale di sacrifici vincenti. [5]
Jobava è un fortissimo giocatore lampo. Con il nickname Oligarckh è un assiduo frequentatore del sito di gioco online Playchess (gestito dalla Chessbase), ed è da molto tempo ai primissimi posti del punteggio Elo nel gioco blitz.
Nel febbraio 2006 vince il prestigioso Open Aeroflot di Mosca .
Nel dicembre 2011 vince il Trofeo Edoardo Crespi a Milano .
Nella lista FIDE di settembre 2012 ha raggiunto il suo record personale con un punteggio Elo di 2734 punti, dato che lo ha collocato al 19º posto nella classifica mondiale e al 1º posto nel suo Paese. [6]

Baadur Jobava (2637)    --    Magnus Carlsen (2548)
6th European Individual Championship  (5)   Warsaw POL
2005.06.22 D17

1.d4 d5 2.c4 c6 3.Cc3 Cf6 4.Cf3 dxc4 5.a4 Af5 6.Ce5 Cbd7 7.Cxc4 Dc7 8.g3 e5 9.dxe5 Cxe5 10.Af4 Cfd7 11.Ag2 g5 12.Axe5 Cxe5 13.Dd4 f6 14.O-O-O 




Ae6 15.f4 gxf4 16.gxf4 Cxc4 17.Dxf6 Af7 18.Dxh8 Dxf4+ 19.Rb1 Ag6+ 20.Ra1 Ce3 21.Td2 Cc2+ 22.Txc2 Axc2 23.Tf1 Dd6 24.Ae4 Ab3 25.Cb5 cxb5 26.Axb7 Tb8 27.Ac6+ Rd8 28.Dxf8+ Rc7 29.Dg7+ Rxc6 30.Dc3+ Rb6 31.Dxb3 Ra5 32.Dc3+ Db4 33.Dc7+ Tb6 34.Dxa7+ Ta6 35.Dc7+ Tb6 36.Tf4 Db3 37.Da7+ Ta6 38.Dc5 Tg6 39.axb5 1-0

mercoledì 11 febbraio 2015

Hnefatafl...Literary Sources


Un doveroso ringraziamento al sito CYNINGSTAN, http://www.cyningstan.com/ per averci permesso la pubblicazione del seguente contributo.

Literary Sources

This page contains a list of contemporary literary sources. It does not include works of modern times, even those that shed light upon the game, such as the excellent books by H. J. R. Murray and D. Parlett (see the bibliography for those).

Tawlbwrdd in the 16th Century

Reproduction of tawlbwrdd illustration
Reproduction of tawlbwrdd illustration

While chess and draughts had displaced tafl in most other places, in 1587 Robert ap Ifan wrote a description of a game called tawlbwrdd, which was still played in Wales at that time. He also drew the empty board. The description of the game tells us how many pieces were in the game, and gives a vague idea of where they started. It neglects to say how they move, and the conditions of victory are unclear, but the document does describe capture and supplies enough detail for us to recognise this as a variant of hnefatafl.

Linnaeus Observes Tablut

Diagram of the tablut board by Linnaeus
Diagram of the tablut board by Linnaeus
The last historical instance of tafl was recorded by Linnaeus in 1732, while he was on a tour of Lapland. He left us a set of rules for a game called tablut, which depicted a Swedish king fighting off a horde of Muscovites, and also left drawings of the board and pieces. The rules are are lacking only a few particulars.
It is from these rules that most of our knowledge of tafl comes, and when variants are reconstructed for which little evidence survives, rules are often borrowed from Linnaeus's account to fill in the gaps.

Ancient Laws of Wales

Laws originally formulated by Hywel Dda contained references to hnefatafl under its Welsh name of tawlbwrdd. This document provides a valuation of the forces on the king's tawlbort. Enough information is given that calculations show a king and eight men against sixteen. The extant laws date from about 1250.

Bown a Hamtwn

This Welsh translation of an English romance contains a reference to tawlbwrdd.

Corpus Christi College MS. 122

Facsimile of the diagram from the Corpus Christi manuscript.
A manuscript kept at the library of Corpus Christi College, Cambridge, contains a diagram showing the initial layout of a tenth century game, and the accompanying text is an allegory relating the board set-up to the gospels. Nothing is said of the rules of play apart from a cryptic list of seven things one needs to know in order to master it.

Dimetian Code

R. C. Bell quotes this as giving a list of values for boards of different materials. The value of the king's board coincides in value with the forces described in detail, so it is unclear whether these values are for the boards or the pieces.

Fornaldur Sogur

According to Murray, an Icelandic saga which in one place describes how, during a raid on Northumbria, Hvitserkr and Sugurd were playing hnefatafl when a messenger from king Aella arrived.

Fridthjof's Saga

One passage in this Icelandic saga focuses on a game between Fridthjof and Bjorn. Hilding arrives during the game, asking for Fridthjof's help in a raid against king Hring. Fridthjof does not answer him directly, but exchanges comments with Bjorn about the game. These comments are interpreted by Hilding as replies to his questions.

Greenland Lay of Atli

H. J. R. Murray quotes the words "the hnefi is often beaten when the hunns are taken", but Sten Helmfrid says the original is not "hunns" but "qvistir", and doubts that the passage refers to hnefatafl at all. However, the following exerpt and translation suggest hnefatafl is being used as an analogy:
Atlamál in Grœnlenzko (The Greenland Lay of Atli), stanza 70, complete: Kostom drepr kvenna/ karla ofríki --/ í kné gengr hnefi,/ ef kvistir þverra;/ tré tekr at hníga,/ ef høggr tág undan./ Nú máttu einn, Atli,/ ollo hér ráða. Translation: Women's choice is killed/ by the greater power of men --/ the king-piece surrenders/ if the ranks are thinned;/ a tree begins to fall/ if the root is cut from under it./ Now you alone, Atli,/ are sole master here. (U. Dronke)

Gretti's Saga

One scene describes an argument between Thorbjorn and his stepmother, in which a game piece is run through Thorbjorn's cheek. The phrase "he was playing hnefatafl, it was a large halatafl" suggests that a halatafl was a type of gaming board on which hnefatafl was played.

Herverar Saga

The Herverar saga contains a couple of riddles that refer to hnefatafl, one of which refers to the pieces as maids fighting around their lord, the brown sheltering him and the fair attacking him. The other, more cryptic one, refers to the hnefi as chasing the flocks, and having eight horns but no head.

Kroka-Refs Saga

An elaborate gaming board is described in this saga, on one side containing a chess board and another containing a hnefatafl board. It was sent from Greenland to King Harald Hadrada.

Raven Song

This contains a single sentence probably of relevance to hnefatafl: "They are well cared for, the warriors who move the hunns in Harald's court."

The Lay of Rig

This Eddic poem, about the god Rig's wanderings, mentions the Jarl's children learning to swim and play tafl, in verse 41.

"Tafl Emk Orr at Efla"

In an untitled poem, Earl Rognvald of Orkney enumerates his talents, one of which is that he is "strong at tafl-play"

Volospa

The Volospa tells of the beginning and end of the world. It tells how the gods played tafl when the world was young. Later, after Ragnarok, the Anses find the gods' golden taeflor in the grass.

L'Estoire des Engles

Geoffrey Gaimar's L'Estoire des Engles contains an early substitution of chess for hnefatafl in literature. Written in the twelfth century, it contains the passage "Orgar iuout a vn esches, Vn giu kil aprist des Daneis", or in English, "Ordgar was playing at chess, A game which he learnt from the Danes".
Chess reached Scandinavia later than it reached England, so it is more likely that Ordgar had learnt hnefatafl from the Danes. Chess arrived in England in the eleventh century, so it would have been well known to Gaimar. In this extract he has done something we are used to seeing from many later scholars: substituting the familiar chess in place of the unfamiliar hnefatafl.

Abair riom a Eire ogh

An Irish poem attributed to Maoil Eoin Mac Raith throws much light on the game of brandub, as shown by the translated extract:
"The centre of the plain of Fal is Tara's castle, delightful hill; out in the exact centre of the plain, like a mark on a parti-coloured brannumh board. Advance thither, it will be a profitable step: leap up on that square, which is fitting for the branan, the board is fittingly thine. I would draw thy attention, o white of tooth, to the noble squares proper for the branan (Tara, Cashel, Croghan, Naas, Oileach), let them be occupied by thee. A golden branan with his band art thou with thy four provincials; thou, O king of Bregia, on yonder square and a man on each side of thee."

The Colloquy of the Ancients

In Gaelic, "Acallam na Senorach", a collection of stories about the Irish Heroic Age, brandub is briefly mentioned and implied to be an asymmetric game: "My famed brandub is in the mountain above Leitir Bhroin, five voiceless men of white silver and eight of red gold."

Comments

Notice in the poem 'Abair riom a Eire ogh' that it suggests all the squares, not necessarily one - 'let THEM be occupied by you', possibly alluding to a home-run style of play. the 3 'cities' are the inauguration sites of the Celtic kings, the central area is the area of sacred kingship, the mythic high-king. Why is the four areas of the board so emphasized in the Irish Bran-dubh and the Christian veneered Alea with the four gospels (Tetramorph), and what role/influence did Fiodh-cheall play if any, it seems to have being played on the same board but with even numbers.

John McMahon - 21:29, 09/06/2014

The home-run is an interesting theory. The main problem I can see is from a game-play point of view: the quest of the king would be well-near impossible unless the attackers' abilities were seriously reduced.

Damian Walker - 05:01, 10/06/2014

Maybe this is Buanbach/bac played on the Bran-dubh (Brannuimh)board and is a variation. A suggestion is that it was played similar to Ashtāpada or historical Chaturanga which was played on the Ashtāpada board, similar to the smaller Brandubh board. The game represented the forces of light and darkness in a Christian context, Brandubh itself may be named for the mythical king Brandubh MacEchtach ('black raven') in a battle against Áed MacAinmuirech (Aodh, fire-light), symbolically the forces of light and darkness in pre-Christian times. interestingly Buan-bach means 'sustained/lasting blocks/handicap/hindrance' or 'impeded/prevented-victory'. This is just a guess and suggestion, but the rules are unknown. 

John McMahon - 02:42, 11/06/2014

An over-looked point, Irish Brandubh is played on the line, like xiang qi, and generally not on the square like the other games. A possible Tafl descendant is a German Medieval game known as Gala, played with chess pieces on a Tafl board, the rules are reversed - the king/s must go into the center and start in the four corners. The king cannot capture on the 'meridian' lines until he leaves them, could this have being taken from movements in Tafl? 

John McMahon - 01:05, 19/06/2014

Yes, brandub and the Scottish 7x7 games were generally played on points or lines, though "Abair riom a Eire ogh" mentions squares, if the translation is precise. I used to make boards resembling the Downpatrick pattern, and use squares now only for aesthetic reasons.
I'm not sure of any connection between gala and hnefatafl, though it's a while since I looked at the rules for gala. I do know that some have doubted the authenticity of gala, but the chances of its taking rules from hnefatafl wouldn't be reduced by its being a modern game.

Damian Walker - 05:09, 19/06/2014

That is true about the squares, many feel here that Fiodh-cheall/Fithcheall was played on the same board, a game descended from Ludus latrunculorum, if true then Brandubh may have borrowed its line-play from pre-existing Fiodhcheall. Line play is uncommon outside Ireland/Scotland, Alea also shows the Irish preference for line-play. Hence if Fiodhcheall had 8x8 lines, the same pieces could be put directly onto the squares to make Brandubh, or played on the lines for Fiodhcheall. This could be why the board mentioned is played on the square rather than on the line. 

John McMahon - 11:34, 19/06/2014

venerdì 6 febbraio 2015

Chess in Armenia




Haik M Martirosyan www.youtube.com
  

 
 
Armenia  (Active players)  
 

#NameTitleFedRatingGB-Year
 1 Aronian, Levon g ARM 2777 13 1982
 2 Melkumyan, Hrant g ARM 2673 0 1989
 3 Sargissian, Gabriel g ARM 2668 0 1983
 4 Movsesian, Sergei g ARM 2663 0 1978
 4 Petrosian, Tigran L. g ARM 2663 0 1984
 6 Akopian, Vladimir g ARM 2660 0 1971
 7 Andriasian, Zaven g ARM 2612 18 1989
 8 Pashikian, Arman g ARM 2604 9 1987
 9 Grigoryan, Karen H. g ARM 2596 9 1995
 10 Hovhannisyan, Robert g ARM 2592 9 1991
 11 Ter-Sahakyan, Samvel g ARM 2580 9 1993
 12 Vaganian, Rafael A g ARM 2577 0 1951
 13 Grigoryan, Avetik g ARM 2568 29 1989
 14 Gabuzyan, Hovhannes g ARM 2553 9 1995
 15 Anastasian, Ashot g ARM 2532 0 1964
 16 Aghasaryan, Robert g ARM 2511 0 1994
 17 Danielian, Elina g ARM 2488 0 1978
 17 Minasian, Artashes g ARM 2488 0 1967
 19 Kotanjian, Tigran g ARM 2482 9 1981
 20 Arzumanian, Georgy g ARM 2479 0 1980
 20 Movsziszian, Karen g ARM 2479 0 1963
 22 Hayrapetyan, Hovik g ARM 2465 9 1990
 23 Babujian, Levon g ARM 2459 9 1986
 23 Harutjunyan, Gevorg g ARM 2459 0 1981
 25 Nalbandian, Tigran g ARM 2458 0 1975
 26 Mkrtchian, Lilit m ARM 2450 3 1982
 27 Harutyunian, Tigran K. m ARM 2445 9 1997
 27 Simonian, Hrair g ARM 2445 0 1991
 29 Shahinyan, David f ARM 2436 9 1994
 30 Petrosyan, Manuel m ARM 2427 9 1998
 30 Matikozian, Andranik m ARM 2427 4 1979
 32 Minasian, Ara g ARM 2426 0 1974
 32 Yegiazarian, Arsen g ARM 2426 0 1970
 34 Galdunts, Sergey g ARM 2423 1 1965
 34 Chibukhchian, Artur g ARM 2423 0 1979
 36 Petrosyan, Tigran S. m ARM 2421 17 1994
 37 Mikaelyan, Arman  ARM 2418 9 1996
 38 Stambulian, Arsen m ARM 2407 0 1965
 39 Simonian, Tigran m ARM 2402 9 1991
 40 Baghdasaryan, Vahe m ARM 2397 18 1993
 41 Zakarian, David f ARM 2385 2 1979
 42 Martirosyan, Haik M. f ARM 2384 9 2000
 43 Hayrapetyan, Arman m ARM 2383 0 1979
 44 Gevorgyan, David  ARM 2382 9 1991
 44 Petrosian, Davit G. g ARM 2382 0 1984

The History of Hnefatafl



Un doveroso ringraziamento al sito CYNINGSTAN, http://www.cyningstan.com/ per averci permesso la pubblicazione del seguente contributo.


Hnefatafl's spread across Europe and beyond

Hnefatafl began its life in Scandinavia. It probably developed from a Roman war game called ludus latrunculorum, which in turn developed from petteia, a game of the Greeks. In its Scandinavian form, hnefatafl was taken through trade and invasion to the British Isles, to Iceland, France, Germany, the Ukraine and to Greenland. In addition to many finds in its ancestral home, boards, pieces and literature for many variants have been found in diverse parts of northern Europe. The game flourished until the arrival of chess.

Just as hnefatafl had replaced the earlier Roman game, so chess replaced hnefatafl as the fashionable game for all classes. Also joining this onslaught was the relatively new game of draughts: against this two-pronged invasion, hnefatafl stood little chance. Hnefatafl continued to linger in remote districts after its fall from grace, and it is from this late period that our best information comes. Detailed information comes down to us about a game in Wales in the sixteenth century, and in Lapland in the eighteenth century

After this, however, the light went out for a hundred years, until in the nineteenth century the game was revived with a Crimean War theme. Throughout the twentieth century, more and more has been rediscovered about the game. Archaeologists have uncovered many boards and fragments, historians have thrown light upon old passages once thought to refer to chess, and reconstructionists have used all this information to construct rules for the variants played on many different sizes of board. Factories and modern cottage industries have manufactured sets for the game, and some game designers have even created new games with hnefatafl as an obvious inspiration.

If you want to see more detail of the game's history, including some archaeological finds and historical documents, then the best place to start is with the game's mysterious origins.

martedì 3 febbraio 2015

Chess in Georgia

File:Georgia, Gelati monastery, Church of Virgin the Blessed, mosaic+mural depicting Theotokos, Angels Michael and Gabriel, Arc de Triomphe.jpg 
Georgia, Gelati monastery, Church of Virgin the Blessed, mosaic+mural

Georgia  (Active players)  

#NameTitleFedRatingGB-Year
 1 Jobava, Baadur g GEO 2727 9 1983
 2 Kacheishvili, Giorgi g GEO 2589 0 1977
 3 Mchedlishvili, Mikheil g GEO 2587 20 1979
 4 Jojua, Davit g GEO 2585 9 1989
 5 Pantsulaia, Levan g GEO 2583 0 1986
 6 Gagunashvili, Merab g GEO 2579 0 1985
 7 Dzagnidze, Nana g GEO 2570 0 1987
 8 Nigalidze, Gaioz g GEO 2566 9 1989
 9 Paichadze, Luka g GEO 2561 18 1991
 9 Gelashvili, Tamaz g GEO 2561 0 1978
 11 Aroshidze, Levan g GEO 2537 0 1985
 12 Margvelashvili, Giorgi g GEO 2536 5 1990
 12 Sturua, Zurab g GEO 2536 0 1959
 14 Shanava, Konstantine g GEO 2528 9 1985
 15 Arutinian, David g GEO 2527 0 1984
 16 Khotenashvili, Bela g GEO 2526 16 1988
 17 Maghalashvili, Davit g GEO 2516 0 1987
 18 Sanikidze, Tornike g GEO 2508 0 1989
 19 Azaladze, Shota m GEO 2503 9 1989
 20 Javakhishvili, Lela m GEO 2486 9 1984
 21 Quparadze, Giga m GEO 2485 18 1987
 22 Benidze, Davit g GEO 2473 0 1991
 22 Melia, Salome m GEO 2473 0 1987
 24 Bregadze, Levan m GEO 2459 0 1992
 24 Managadze, Nikoloz m GEO 2459 0 1969
 26 Khurtsidze, Nino m GEO 2455 9 1975
 27 Batsiashvili, Nino m GEO 2450 17 1987
 28 Bakhtadze, Giorgi m GEO 2445 0 1980
 29 Lobzhanidze, Davit m GEO 2434 1 1968
 30 Kekelidze, Mikheil g GEO 2426 0 1974
 30 Zarkua, Davit m GEO 2426 0 1987

lunedì 2 febbraio 2015

Tavoliere di Hnefatafl

















by Marco Gandolfo

World Tafl Federation

Desideriamo segnalare  il sito della World Tafl Federation, http://aagenielsen.dk/  dove è possibile giocare a un gran numero di giochi strategici appartenenti alla famiglia dei giochi Tafl, giochi molto antichi ai quali abbiamo dedicato precedenti post.

Il sito della World Tafl Federation
è molto ben strutturato,assai ricco di notizie e documentazione e offre, inoltre, la possibilità di incontrare appassionati di tutto il mondo e giocare con essi sia in sfide individuali che in tornei.

Approfittiamo per riportare qualche posizione dal sito della  World Tafl Federation,
si tratta di posizioni riguardanti la versione Copenhagen Hnefatafl 11x11 particolarmente in voga. Naturalmente per potere aprezzare adeguatamente gli elementi strategico-tattici presenti è necessario disporre di una adeguata conoscenza del gioco e delle sue implicazioni...

hnefatafl board 
Schachus vs Crust - 30 moves

hnefatafl board
Crust vs Schachus - 12 moves

hnefatafl board
Schachus vs Nath.- 14 moves 

chess endgames:K. A. Leonid KUBBEL

Kubbel, A.    --    [+0331.42e1h6]
1/2.p Shakhmatny Listok   1925     1-0

1.c6-c7





1.c7 Te4+ 2.Rd2
( 2.Rxd1 Txd4+ 3.Re2 Tc4 )
2...Txd4+ 3.Rc3 Ag4 4.hxg4 Td7 5.Cd6
( 5.c8=D Tc7+ 6.Dxc7 )
( 5.Rb4 Txc7 6.Cd6 )
5...Txc7+ 6.Rb4
( 6.Rd4 Td7 7.Re5 Rg7 8.Cf5+ Rf7 9.Ch6+ Rf8 10.Re6 )
6...Rg7 7.Ce8+ 1-0