Tags: chess, online chess, play chess, chess, play chess online, chess online, backgammon online
Chess Forum
mailcafe.net << online chess - < chess - chess > - chess online >>
| From | Message | Posted by frankambruce
mailcafe.net
8/18/2008
03:27:51
Play online chess |  Subject: puzzle #5698
Message:
I have been looking through the different moves the Bishop could do in this puzzle and the next obviously only move the Knight would do in order to reach the mate. I was surprised that Nc7 as an alternative solution had been rejected as leading to more moves than the given solution. I look and relook at the board but can't understand why Nc7 would not be a mate within the two moves to mate. Could some of you more-experienced-players help me with that ?
| Posted by ganstaman
mailcafe.net
8/18/2008
04:29:33
Play online chess |
Message:
Well 1. Nc7 Bxc7+ and if 2. Kxc7, we have stalemate (which is a draw, and not checkmate). Any other second move by white doesn't mate either, so 1. Nc7 doesn't deliver mate-in-2 (in fact, I don't think it even wins at all).
| Posted by heinzkat
mailcafe.net
8/18/2008
04:33:50
Play online chess |
Message:
I think you want to add an alternative mating move, which isn't possible. I.e.
1. Ka6 Bh8
2. Nb6# or Nc7#
Both moves will be accepted when someone tries to solve the puzzle; but you cannot add an alternative to GK's automatic 2. Nb6#.
———
Children 1, Astronaut 0 — In the end, the astronaut could not outwit the children. Wednesday, Greg Chamitoff, an American astronaut, resigned a long-running correspondence chess game against a group of children from Stevenson Elementary School in Bellevue, Wash. They had started the game in September 2008 while Chamitoff was stationed aboard the International Space Station. The game had been the idea of the National Aeronautics and Space Administration. Officials at the agency had asked the United States Chess Federation about having Chamitoff play a game of chess against some of the federation’s members. Stevenson was chosen as an opponent because the school ...
Posted by frankambruce
mailcafe.net
8/18/2008
04:55:28
Play online chess |
Message:
Thank you ganstaman and heinzkat for your prompt responses.
heinzkat: I see. I came back on the refreshed board and the Bishop got on f3, when the Nc7 has been accepted. But... as I had been looking through your puzzle an hour ago, coming to the solution and hitting the returnbutton beneith the board to study the alternative solutions, I noticed that the Nc7 option hadn't been available. Shouldn't all possible solutions be in the Solutionlist on the right of the board?
PS: I like your puzzles heinzkat. Maybe one day I come through the twothousand and thanks to the given pratice might be prepared to offer you a nice game :)
———
London Chess Classic: Kramnik's lesson in positional play — McShane-Kramnik, London 2009. Black to play. With two rounds to go in the London Chess Classic, the Norwegian chess prodigy Magnus Carlsen looks set to win the tournament. Vladimir Kramnik, his main rival, is in second place. In this game from round three, Kramnik displayed his refined positional understanding. RB I've been following this tournament online, but I missed this particular game, and more's the pity because I can't find a good continuation for Black. Clearly Kramnik has the better game – the two centralised knights look very threatening – but how to convert Black's positional superiority into a winning position? 1...Nxd2 2 Nxd2 doesn't lead anywhere and ...
Posted by tugger
mailcafe.net
8/25/2008
13:41:41
Play online chess |
Message:
i find it unusual that if there are two possible mates at the end of a puzzle, only one is listed in the possible moves. i guess it's because the puzzle maker here spots a mate in one immediately, records the first move it spots, then moves onto a different position. but all mate in one moves are accepted when solving, even if it isn't listed.
———
Gelfand Wins World Chess Cup — Boris Gelfand of Israel is the 2009 World Cup champion. Gelfand won the title by beating Ruslan Ponomariov of Ukraine in a playoff on Monday. The first four games of the playoff were rapid games (25 minutes per player per game) and Gelfand took the lead by winning the second game. But Ponomariov, with his back to the wall, won the last rapid game to tie the match up again. The playoff then went to blitz chess (5 minutes per player per game) and Gelfand once again took the lead by beating Ponomariov in the first game when he managed to trap Ponomariov’s queen in 21 moves. Ponomariov rallied again, winning the second game. But Gelfand won the third and Ponomariov ...
| | |
|