10164 Players currently online!
Man vs. Machine - good luck!
Turn-based games at any time!
Vote for the best move to win!
Do you have what it takes?
Sharpen your tactical vision!
Get advice and game insights!
Learn from top players & pros!
View millions of master games!
Your virtual chess coach!
Perfect your opening moves!
Test your skills vs. computer!
Find the right private coach!
Can you solve it each day?
Bring it all together!
Beginners, start here!
Make friends & play team games!
News from the world of chess!
Search all Chess.com members!
Find local clubs & events!
Who's the best of your friends?
Read what members are saying!
Hello, sorry to bother you, but I am subscribing to Tactics Trainer - 25 puzzles a day and I got puzzle No. 42958 twice. First on May 29th and again on June 4th. Is this a bug? Don't we suppose to get only puzzles we didn't got yet? If we don't suppo0se to get repeats and if this is not the right place to report this, where should I be reporting this?
Thank you very much for reply.
It may just be random chance.
I often get a puzzle twice in a row if I fail it the first time.
That's what I call "pity" mode on the TT and happens when the TT decides you need to review a puzzle. Far more annoying is "dumb sh#t" mode as Mwotsch described where the TT decides you've missed a problem enough times that it needs special attention. The problem with these modes is that your rating becomes inflated and you may have to reset the TT to erase your history and start over again.
Not really, it will naturally go back down if repeats have made it too high and the problems at your rating are too hard for you.
There are far worse problems with the rating system: the massive emphasis on speed and credit for partial solutions.
Maybe it only happens if you do a massive amount of TT training, but my experience is all I can go on Scottrf. I was in the mid 1700's with a high score of 1850 when I reset because I was getting so many repeats. My current 1500 rating is much more accurate. What would happen is my rating would slide down and then after about 30 puzzles the TT would shift to "pity" mode and start feeding me "review" puzzles. As untalented as I am, even I can usually nail a problem that I've seen an hour or so before! Of course I had a 23,000 problem history then and staff has indicated in another thread that over 20k problems TT may have trouble not repeating puzzles. Like most on this site, I have a love/hate relationship with the TT.
There are only a limited number of patterns, once you've done 23,000 you probably just know a lot of the patterns to an extent. I vary rarely see concepts I don't know now, even if I haven't seen the exact problem, it's just working out the features of the position, which patterns are relevant, move orders, defensive resources etc.
But I do get the problem when you sometimes get too many repeats, just think that if that inflates your rating it will just fall when you start getting them wrong.
So, I guess that 20,000 problems is the goal. Then you've seen enough.
Drueke Player's Choice
by MrEdCollins 2 minutes ago
Hurt/Heal World Chess Champions
by ponz111 3 minutes ago
7/6/2015 - Entrapment
by Lady69 6 minutes ago
When a coward refuses to resign.......
by BattleChessGN18 12 minutes ago
Why do Sicilian players hate 2.c3?
by Fiveofswords 30 minutes ago
DKINGISDEAD - King Maneuver Attack
by DKingIsDead 31 minutes ago
Dutch vs. The London system
by ipcress12 34 minutes ago
Facing a coward who loves to lose on time?
by kleelof 48 minutes ago
Is it a joke?
by scubegirl 55 minutes ago
Learning openings - who should I watch?
by guydeguy 63 minutes ago
Why Join | Chess Topics |
Help & Support |
© 2015 Chess.com
• Chess - English
We are working hard to make Chess.com available in over 70 languages. Check back over the year as we develop the technology to add more, and we will try our best to notify you when your language is ready for translating!