chess online
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 Introducing a new feature: chess tactics, exercises/problemsWe'll be releasing it publicly in the next couple of days. Comments? Suggestions? Bug reports? |
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Works now... Generally they are not hard. However, get a move wrong and it tells at once you have failed Most of them are mates that i've seen, but not all. Some just win material. It's still tactics and middlegame stuff for the most part. Wouldn't mind seeing some endgame things and maybe some drawing combinations. On the whole I like the feature. |
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baronderkilt 12-Aug-10, 14:53 |
Interesting ... Thx GK |
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baronderkilt 12-Aug-10, 15:04 |
Hi Ion . . . So I was thinking it would be nice if someone could make a selection of whether to work on ones that test the depth of anylysis & creative move finding etc ... or whether to do strictly Instant Recog's for improving speed. Or to select a mixture, as it is. Or go Easy to Harder, etc. Like Puzzle options have. }8-) BTW, I also looked at a couple of the Instant ones over 30 seconds in disbelief ...like there must be more to it, "what's the catch" you know. lol |
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rookie879 12-Aug-10, 20:50 |
Its good. |
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Sounds awesome! |
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by the way... |
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Nice but i wonder, how the chess tac rating works. - has the exercise a rating just like my opponents ? and is the value therefore variable - or is it a mix of speed and accuracy that counts towards a positive/negative rating score.. I took my time My rating: 1400 Total attempts: 10 Solved problems: 10 (100%) Total training time: 0:17:51 |
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and |
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All the chess tactics exercises are based on the games played right here on GameKnot. We've had several powerful computers running 24 hours a day for a couple of months now, analyzing games and finding positions with only a single clear path leading to a material advantage of at least a bishop/knight (or more), or checkmate. Less than 0.1% of all games have been analyzed, and more exercises are being added each day. Because most of the problems have not been rated yet -- it takes 20-30 attempts by different players of varying ratings to get an accurate rating for a problem -- the problems are chosen almost randomly right now. Which is the reason why you might be getting a mix of very easy problems and very hard problems. It'll get better once more players are using these exercises and problems get their true ratings. We are not planning to show the player's tactics stats on their profiles right now, but we'll consider it. It'll probably be optional in the end -- i.e. hidden by defaults, and each player can choose to show it on their profile page if wanted. |
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rookie879 13-Aug-10, 20:45 |
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I admit it took... I also find that they aren't in any consistent 'order of difficulty'. Some are very simple two-movers (my 'record' is 7 seconds); others are maybe 5 moves. A very few I felt could have added a move at the back end, having been taken by surprise when the 'puzzle solved' sign flashed up. But that's a quibble. The failure I've had I wanted to go back to but and try again without a solution, but now I see some merit in letting it go and maybe it will come around another time... I think I'll go off an have another crack... |
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Just one question example, having a limit of 10 problems a day be imposed once all the bugs are cleared and the new feature is running as smooth as a piece of code can run. |
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Well, I've had some more fun ,,, That time seems to be 'elspsed' time - spent playing with the feature - not the total of times spent on the solutions. My rating is now a little over 1450, having reached this milestone at least 3 times already. It did reach 1477 at one point. Failures will hurt you badly, the worse as your rating increases. The reason is that you are assumed to be playing a 1200 rated player, so your rating changes according to results. Solve the puzzle you win: fail and you lose. I've attempted 160, and carked out on 29. At that there has been a slight improvement over time (80% success over the first 40; 82% over the next 50; 83% over the last 70). My longest 'winning streak' was (I think) 17 puzzles. My record time has been 5 seconds, achieved more than once (I mis-spoke earlier when I said it was 8). Not counting failures, I've solved 48 in 10 seconds or less, and a further 48 between 11 and 20 seconds. A good many of the puzzles are that simple. Mind you, several of my failures have been at similar times - rushing things! The longest I've recorded was something over 4 minutes, which is a complete mystery to me. I'm certain I saw that puzzle no more than 30 seconds, if so much. A glitch? I have found that sometimes the pickup by mouse 'grabs' and let's go rather reluctantly. I've failed one or two puzzles through that cause - the moved piece fetching up where I didn't intend it to go. But I suspect that might simply be carelessness on my part. I do tend to rush these things... Some of the tougher puzzles are interesting. More than once it has been the second move I've had difficulty finding. At that, the correct move has often been what I probably would have played in an actual game, but I've been looking for something a little more 'oomphy'. Second-guessing the puzzle in other words. You gotta watch for that kind of thing. Man, it's fun, though. Yeee-Hah! Cheers, Ion |
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I've finally cracked 1500! Man those failures hurt. I've now tackled 221 with a 183-38 split. Those last 61 puzzles included 52 successes and 9 failures - an 85% success rate. I suspect my 'rating' will not improve further if I can't do better than 5 out of 6... I really ought to be getting close to 100%. I now know what the 'average time' is. It's the average taken over everyone's attempts to solve a given puzzle. Well, that's enough fun for now... Cheers, Ion |
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kingdawar 14-Aug-10, 17:55 |
Deleted by kingdawar on 14-Aug-10, 17:57.
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I don't know if necessary or not, but maybe the problems' ratings could be adjusted based on how much time is spent to find the correct solution on average (taking out the extremes), not solely based on solved/not solved. |
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=> gameknot.com |
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what a |
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@ heinzkat Never thought I could be in the top 20 of any list! It'll probably drop down once more people start using this thing though lol |
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Nice feature |
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nice |
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It's fun |
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hektorx 15-Aug-10, 07:16 |
Good job |
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Legal's Mate... It looks as though the feature 'samples with replacement' - or else doesn't 'remember' if you have solved (or faced) a puzzle before. Not that this is a complaint: far from it. Running up against problems a second and third time gives a chance of revisiting failed ones, and honing recollection skills. Cheers, Ion |
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It's very hard to reach 1600 at this moment |
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Well stated, Heinzkat Maybe the point, though, is to make you think hard about what the best move is. I just think it is overdone. I say scrap those problems where one side is already won. Also, is it going to be possible someday for individual players to submit problems from heir own games? I think the database of problems would grow rapidly if that is permitted. |
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Princevlad (position shown from black's perspective) 1. Bd6?! Qxf2 (not the only winning move but OK a Rook is a Rook) 2. a3 ...: This new explanation does not suffice: "The goal in each exercise is not necessarily to win in the end, although it is often the case. You might already be winning to begin with, or you might still be losing at the end. The goal is to improve upon what you currently have, by either capturing more of your opponent's pieces, or by getting into a position for a checkmate soon thereafter." - that's not how chess works. Oh yes and I suggested that all the problems ending in mate should actually be added to the old section gameknot.com - because I do think they are sometimes nice. But they tend to have alternative winning options, but they would fit in nicely in the mate in x section where the max. amount of moves is stipulated beforehand. |
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ok i took my time but slow also seems to work.. My rating: 1577 Total attempts: 100 Solved problems: 93 (93%) Total training time: 2:34:11 if i compare that to our top puzzle dude heinzkat rating 1600 attempts 526 solved 88.8% total time 2:17:09 and our analytic master ionadowman rating 1511 attempts 257 solved 82.9% total time 1:47:09 then i think i am doing quit well.. but just like ion i got a few mouse slips picking up the piece with the mouse but slip the button on the wrong square.. instant failure 12 to 19 points down.. most difficult i find switching from a mating puzzle to a get a advantage puzzle.. it needs a different view so i have to look twice or more. and i am always expecting tricks so wen i found the solution i check it a few times before inserting it.. |
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