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| From | Message | Posted by alice02
uskidscompute.com
1/03/2004
13:24:53
Play online chess |  Subject: impossible Board positions
Message:
I started off by trying to work out puzzle 366 on Gameknot. Then I posted on the Gameknot section. Then I wondered - if you're experimenting with end games, can you put 2 or more pieces per colour on the board anywhere and any how without the king being in check and try and work it out, or could you accidentally come up with impossible positions. I know it is not the best way to practice endgames, but I'm using the example to ask about the structure of a chess game, not about endgames.
| Posted by tgtp
uskidscompute.com
1/03/2004
14:35:59
Play online chess | one example
Message:
white Qb6, Qc7, Ke1
black h7,g7, Ka8
white to move
what was black´s last move?
Ka7-a8, Kb7-a8 or Kb8-a8
in all three cases: what was white´s last move?
IMPOSSIBLE
But this is not a position you´d like to analyze.
| Posted by philaretus
uskidscompute.com
1/03/2004
14:43:58
Play online chess | The simplest.....
Message:
.....impossible position is a completely empty board. Setting this up on some old-time chessplaying programs used to cause them to crash. :)
———
Magnus Carlsen to the summit — Magnus Carlsen has achieved his aim. With his victory in the London Chess Classic last week, the Norwegian grandmaster grabbed enough rating points to climb on top of the January FIDE rating list. What's next? The title of world chess champion, of course! But that might be out of his hands since FIDE often shuffles rules and regulations at whim. Magnus has to wait at least till 2011. For the time being, FIDE is scheduling the world chess championship match between the titleholder, Vishy Anand of India, and the challenger, Veselin Topalov of Bulgaria, next April in the Bulgarian capital of Sofia. Carlsen was playing hard in London, perhaps pushing his luck in a few games. After defeating ...
| Posted by henwick
uskidscompute.com
1/04/2004
01:04:48
Play online chess | Not quite impossible tgtp :)
Message:
The position you give could theoretically arise from e.g.
Black ka8, qb7, pg7, ph7
White Ke1, Qb1, Qc7
Black plays ...Qb6 and white replies Q(b1)xb6
———
Another Dose of Chess Nostalgia — Tis the season, or perhaps the year, for nostalgia. In September, Garry Kasparov and Anatoly Karpov, the former chess champions and rivals, played a 12-game exhibition match in Valencia, Spain, to commemorate the 25th anniversary of their first championship match. On Friday, another match between chess legends began in Elista, the capital of Kalmykia, a region in southern Russia next to Kazakhstan. The match is between Boris Spassky, 72, the former world chess champion, and Viktor Korchnoi, 78, the two-time (or three-time, depending on whether the candidates final in 1974 is included) challenger for the world title. Like Kasparov and Karpov, Korchnoi and Spassky are old rivals, though ...
| Posted by tgtp
uskidscompute.com
1/04/2004
02:25:26
Play online chess | henwick
Message:
sorry, you missed the point that it is white to move in my example.
———
Veteran Has Staying Power, but 19-Year-Old Will Be No. 1 — Two of the biggest chess events of the year ended last week with champions who are at very different stages of their chess careers. In Khanty-Mansiysk, Russia, Boris Gelfand of Israel captured the World Cup, outlasting a field of 128 players. Though he is No. 7 in the world, and will be No. 6 when the new chess rankings come out on Jan. 1, Gelfand, 41, is not likely to be an elite player for many more years, particularly when chess is increasingly a young man’s game. His staying power — he has been among the world’s best chess players for two decades — is unusual. With the victory in the World Cup, Gelfand has qualified for the candidates’ matches to select a challenger for ...
| Posted by henwick
uskidscompute.com
1/04/2004
04:28:41
Play online chess | tgtp
Message:
Sorry, YOU are right. I was confused by your message ending up "what was white´s last move?"
———
Magnus Carlsen wins without distinction — Magnus Carlsen won the London Classic and confirmed his world No1 status, yet paradoxically the Norwegian seemed, compared with the chess legends Bobby Fischer and Garry Kasparov in their pomp, far from his personal zenith. Carlsen impressed in his opening win against Vlad Kramnik, which ultimately settled first prize, and in the later stages of his next win from Luke McShane. But in the remaining five rounds he stuttered his way to victory. He could have lost to Michael Adams, had two or three other dubious positions and missed a simple win in the puzzle below. Still the 19-year-old's No 1 spot in the January world chess rankings will fulfil the target set by his coach Kasparov. Kramnik ...
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