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2. March 2014, 18:11:32
aaru 
Subject: Fischer's clock
2 games with FC: 21days/18hours/31days23hours
- Last move of my opponent - 2 march 2014 1:56am. My timed out - 2 march 2014 8:30am.
- Last move of my opponent - 2 march 2014 1:56am. My timed out - 2 march 2014 7:40am.
Why?
I should have minimum 18 hours for move

2. March 2014, 20:21:15
Pedro Martínez 
Subject: Re: Fischer's clock
aaru: Why? b/k

2. March 2014, 22:04:08
Aganju 
Subject: Re: Fischer's clock
Pedro Martínez: for me, the difference shown is 18 hours plus some minutes. Be aware that the time zones of the two players are potentially different.

2. March 2014, 22:18:32
happyjuggler0 
Subject: Re: Fischer's clock
Aganju: That is not how it works. The system records the times in both of your games in your records as if the game occurs between two players in the same time zone.

Next time that an opponent of yours plays a move in a game of yours, check out the clock in the upper right of your screen and then click on that game and you will see that it was played only a few seconds earlier, regardless of which time zone your opponent was playing in.

2. March 2014, 22:31:35
Pedro Martínez 
Subject: Re: Fischer's clock
Aganju: Be aware that BK stands for BugKing.

2. March 2014, 22:36:00
speachless 
Subject: Re: Fischer's clock
aaru: i think fencer should restart both games and take back the rating as it was before the time out. did you write him?

23. March 2014, 15:31:39
aaru 
Subject: Re: Fischer's clock
aaru: Cloning Backgammon (aaru vs. AlterMann)

Next one - FC wit 5days/8hours/30days
Last move of my opponent - 23. march 2014, 1:27:47pm. My timed out - 23. march 2014, 1:50:02pm
HOW IS IT POSSIBLE??????????????????????????????????????????????????????????????????

24. March 2014, 23:43:00
aaru 
Subject: Re: Fischer's clock
Modified by aaru (24. March 2014, 23:43:17)
Next one: FC with 18hours bonus. After move of my opponent I have only 6 hours - Crowded Backgammon (aaru vs. AlterMann)

25. March 2014, 00:47:57
SL-Mark 
Subject: Re: Fischer's clock
aaru: lol, AlterMann is part of the Derp Trolling group and is changing the NTP used by the BK servers in your games with him :)

25. March 2014, 02:21:28
Aganju 
Subject: Re: Fischer's clock
aaru: I see there: "Time left: aaru: 23 hours 33 mins". Maybe your time zone is set wrong so you see the clock from another time zone??

25. March 2014, 07:55:32
aaru 
Subject: Re: Fischer's clock
Aganju: 23hours 33minuts was after my next move -> http://www.pl.image-share.com/ijpg-276-82.html

25. March 2014, 07:57:55
aaru 
Subject: Re: Fischer's clock

18. April 2014, 08:21:35
aaru 
Subject: Re: Fischer's clock
Next one: FC with 18hours bonus. After move of my opponent I had only 6 hours 16 minuts !!!!!!!!!!!!!!!!!!!!
http://brainking.com/pl/PhotoAlbum?alid=2160&phid=16425

18. April 2014, 13:59:51
Hrqls 
Subject: Re: Fischer's clock
aaru: have you sent these games to Fencer as well in a private message ?

18. April 2014, 14:23:52
aaru 
Subject: Re: Fischer's clock
Hrqls: Yes, 1st time.
(without answer)

21. April 2014, 12:35:38
Hrqls 
Subject: Re: Fischer's clock
aaru: make a list of the games you posted in here and send it to him again :)

22. April 2014, 10:02:42
aaru 
Subject: Re: Fischer's clock
Hrqls: Thanks.
First 2 games sended once again. I try to find rest of games...

22. April 2014, 10:08:31
Hrqls 
Subject: Re: Fischer's clock
aaru: when you have the full list,please send them to me as well :)

22. April 2014, 10:32:19
aaru 
Subject: Re: Fischer's clock
Hrqls: Full list - it will be hard to do. Too many games. I have 2 games with number -> 6545906, 6531972
2 next with screenshot on my album (but I have to find numbers of this games).
It was more games with this problem.
Fe. Sometimes I finished play ca 1am. Next game with move before 1-2pm on next day. 7am I looked on BK and ~5 games with 5-10 minuts... (few times).

23. April 2014, 09:48:27
Hrqls 
Subject: Re: Fischer's clock
aaru: please send a list (any list) to me in a pm :)

24. April 2014, 22:12:44
aaru 
Subject: Re: Fischer's clock
Hrqls:

4/ Crowded Backgammon (AlterMann vs. aaru)
Last move of my opponent: 24 April 2014, 20:16:53. Dead time -> 25 April 2014, 00:56:00 is the last term before timeout for this move. So 4:39 for move (FC with 18 hours bonus)

5/ Backgammon Race (AlterMann vs. aaru)
Last move of my opponent: 24 April 2014, 21:14:55. Dead time -> 25 April 2014, 08:02:00 is the last term before timeout for this move. So 10:47 for move (FC with 18 hours bonus)

24. April 2014, 22:16:24
aaru 
Subject: Re: Fischer's clock

19. May 2014, 10:33:48
aaru 
Subject: Re: Fischer's clock
Next one
Last move of my opponent: 17 May 2014, 20:49:39. Dead time -> 17 May 2014, 23:50:03. So 3hours after move of my opponent (FC with 18 hours bonus)
http://brainking.com/pl/PhotoAlbum?alid=2160&phid=16449
Crowded Backgammon (AlterMann vs. aaru)

26. May 2014, 13:20:49
aaru 
Subject: Re: Fischer's clock
game 6667785
Last move of my opponent: 26 May 2014, 12:50:55. Dead time -> 26 May 2014, 23:09:00. So 10:18:05 hours after move of my opponent (FC with 18 hours bonus)
http://brainking.com/pl/PhotoAlbum?alid=2160&phid=16459
Tryktrak (AlterMann vs. aaru)

26. May 2014, 15:08:19
BGBedlam 
Subject: Re: Fischer's clock
aaru: There seems to be a common thread running through all these examples you keep giving us aaru!

26. May 2014, 22:37:17
Roberto Silva 
Subject: Re: Fischer's clock
BGBedlam: Indeed

3. June 2014, 08:11:25
aaru 
Subject: Re: Fischer's clock
game 6663440
Last move of my opponent: 1 June 2014, 17:59:00. Time out -> 2 June 2014, 02:50:00. 8:51:00 hours after move of my opponent (FC with 18 hours bonus !!!!!!!!!)
http://brainking.com/pl/PhotoAlbum?alid=2160&phid=16462
Nackgammon (AlterMann vs. aaru)

3. June 2014, 08:20:19
ThunderGr 
Subject: Re: Fischer's clock
aaru: When had the game started? I can see there is a 30 days limit.

3. June 2014, 08:22:34
aaru 
Subject: Re: Fischer's clock
game 6663653
Last move of my opponent: 2 June 2014, 17:25:25. Time out -> 2 June 2014, 19:40:00. 2:14:13 hours after move of my opponent !!! (FC with 18 hours bonus)

Fevga (AlterMann vs. aaru)

Ps.
Strange - I cannot put next picture to my Bug gallery.

3. June 2014, 08:27:40
ThunderGr 
Subject: Re: Fischer's clock
aaru: The game had started 24/03/2014 with a 30 days limit, aaru. I think this is your problem. You should pay more attention to the time *limit* of a Fischer clock.
It is not just the 18 hours bonus, you know. It does not look like a bug to me.

3. June 2014, 09:21:27
moistfinger 
Subject: Re: Fischer's clock
ThunderGr: Time limits are way too generous here, it's a bit of a joke. Some players wait until the very last moment before time-out to make a move, it's really quite sad. As far as I'm concerned slow players kill game websites, they suck all the enjoyment out of the games, makes everyone lose interest after a while. There are more and more of these guys here on Brainking (I'm not naming names but I'm itching to!). I have my own theory as to why.

3. June 2014, 09:24:23
ThunderGr 
Subject: Re: Fischer's clock
Modified by ThunderGr (3. June 2014, 09:24:41)
moistfinger: Maybe so, but, if I am not mistaken, the 3rd number in the fischer clock indicates the *absolute limit* of the game. That is, despite of what the other 2 numbers say, the game cannot exceed the *total* of the 3rd number. So, a game with a 30 days limit will end at the 30th day, no matter who's turn is to move at that time.

3. June 2014, 09:59:05
aaru 
Subject: Re: Fischer's clock
Modified by aaru (3. June 2014, 10:01:51)
ThunderGr: You're wrong. In that case, the game should have ended on April 24
Pls read sth more about FC ->

http://www.chesscentral.com/chess_clock_how_use_a/157.htm



"Let's look at an example of a player's time usage (and his corresponding clock display) across the first few moves of a 40/20 Fischer increment game.

The White player at the start of such a game has "40:00" showing on his digital clock, which means that he starts with forty minutes in which to make all his moves. Black hits his button to start White's clock (and to start the game). White already knows what he wants to play, makes the move 1.e4, and hits his clock to complete his move. Three seconds have elapsed between the time Black hit his clock to begin White's move and White hitting his clock to end the move.

In a traditional "sudden death" game, White's clock would read "39:57" (showing that three seconds had been used) and that would be it. But since this is a "Fischer" time control game with a twenty second increment, the digital clock has been pre-programmed to add twenty seconds back to a player's time whenever his button is pushed. Thus twenty seconds gets added to White's clock when he presses the button to finish his move, and the timer's display now reads "40:17" (his initial 40 minutes - the 3 seconds he took to move + the 20 "bonus" seconds of the added increment):

40:00 - 0:03 = 39:57
39:57 + 0:20 = 40:17


Black plays 1...e5 and hits his clock to end his move and start White's timer. The White player snaps off 2.Nf3, again taking three seconds to make his move and hit the button on his timer:

40:17 - 0:03 = 40:14
40:14 + 0:20 = 40:34


...and so White has actually gained 34 seconds since the game's start because he's playing pretty quickly.

Black bangs out 2...Nc6 and hits his clock. The White player already knows he wants to play a Ruy Lopez and plays 3.Bb5, again taking three seconds to make his move and hit his clock:

40:34 - 0:03 = 40:31
40:31 + 0:20 = 40:51


White's picked up nearly a full minute - he now has nearly 41 minutes to make all the rest of his moves.

But Black has other ideas; either by design or by accident, he doesn't play the standard Ruy reply of 3...a6 and instead plays 3...Nf6. This throws White for a bit of a loop as he hasn't prepared for this move. He eventually figures out a reply but takes a full two minutes and thirty-four seconds to think, make the move, and hit the button on his clock:

40:51 - 2:34 = 38:17
38:17 + 0:20 = 38:37


...and White now has 38 minutes and 37 seconds left on his clock to make all of his moves before he'd "lose on time".

I've played quite a few online games using the "40/20" Fischer increment and discovered that, on average, each player usually uses about an hour to play; this is a good increment to use when you have about two hours to play a game. For a faster game you could easily start with a shorter "sudden death" time or a shorter increment (or both, such as "20/10": twenty initial minutes with ten seconds added each move). A few algebraic equations have been published which let you approximate the time a game will take when using a particular Fischer time control; although it's impossible to predict infallibly the length of time which a (theoretically) open-ended game will take, these equations can at least give players a "ballpark" idea of the expected duration of a game.

Fischer increments were officially recognized by the United States Chess Federation for tournament use starting in the mid 1990's. This caused a fair amount of contoversy at the time since players had to replace their analog clocks with (then more expensive) digital models. That initial furor has died down over time, but you'll see many players still using their analog clocks for casual "sudden death" games at chess clubs or between rounds at chess tournaments. (In fact, an analog clock is still my choice for "speed" games with my friends and family, since anyone can understand how to set and use one without any special instructions.)"  


In BrainKing we have 3 parts of Fischer's clock - A/B/C:
A - time for move (on the beginning of game)
B - time added after each move
C - maximum time for one move

Example #1 -> 30days/1day/30days

Games started at 8am. Your move at 9am
30 days - 1 hour + 1 day -> 30 days (because in C we have 30 days)

Example #2 -> 21days / 18hours / 31days 23 hours

Player X - dead time at 5pm, moved at 4:40pm (20 minuts before dead line)
20 minuts + 18 hours -> 18 hours 20 minuts



3. June 2014, 10:12:10
Dice Cheater 
Subject: Re: Fischer's clock
aaru: Thanks for taking the time to explain this, I never could quite get my head around the Fischer clock and the time-out rules.

3. June 2014, 10:12:25
ThunderGr 
Subject: Re: Fischer's clock
aaru: I see. Thank you for clarifying this.

3. June 2014, 10:24:27
ThunderGr 
Subject: Re: Fischer's clock
aaru: Where you playing on time limit? How much time did you have after your last move? Had you noticed?

3. June 2014, 11:44:24
aaru 
Subject: Re: Fischer's clock
ThunderGr: I have no idea. Even it was 1 minut -> still should be 18 hours & 1 minut

3. June 2014, 11:51:15
ThunderGr 
Subject: Re: Fischer's clock
aaru: You are right, of course, but if you had noticed, it could help pin down the bug. If it was showing correctly the incorrect time limit then it is a calculation bug but if not then it would be a more difficult bug to find.

22. April 2014, 13:10:09
aaru 
Subject: Re: Fischer's clock
Hrqls: Next one 10 minuts ago -> Cloning Backgammon (AlterMann vs. aaru)
Last move of my opponent: 22 April 2014, 12:47:48
Dead time -> 22 April 2014, 15:22:00 is the last term before timeout for this move
So 2:30 per move (FC with 18 hours bonus)

22. April 2014, 13:16:08
aaru 
Subject: Re: Fischer's clock

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