World of Card Games

This morning's update fixed a couple of minor bugs.

In addition, I tinkered with the strategy of the Spades bots. There are small changes in their bidding and also in the way that they play.

Please keep in mind that sometimes it's hard to know what to bid, and the bots are not perfect! If you spot a particularly egregious bidding or playing error, where it's obvious that a bot did something bone-headed in the course of a hand of cards, and you want to do something to help correct it, you can! Please try to remember to download the hand history as soon as that hand is finished. Once you download it, you can send it to me, and tell me what you think was wrong. With this information, I can rework the code to improve the bots.

For those who do not know about the hand history, that is just a small text file with a URL (link) in it. The link is to a "replayer" at World of Card Games. When you copy and paste the URL into a web browser, you will get a "replay" of that hand, showing who bid what, and how each card was played. All the cards will be shown face-up straight from the start. This link is an example of a "hand history".  You can click it to see how it works. But don't click it if you are currently playing a game at World of Card Games; it will not work, in that case.

You can only download the hand history if you are a registered user and signed in. Also, it's only available for 30 seconds after the hand finishes. So grab it quickly if you want to save it! To download it, click the little floppy disk icon that appears near your avatar. You can see that in the screenshot, below:

click the floppy disk icon to download hand history

The site was updated this morning to fix a few bugs.

In Gin Rummy, there was a bug which caused your deadwood to be optimized incorrectly when your opponent declared "Gin". This had been reported to me a few times, but I was never able to reproduce the issue. Thanks to Alagon for reporting it and also sending in the hand history! With the hand history, I was able to reproduce the issue, and then I could fix it pretty quickly. (If you want to download a "replayer" for the previous hand, click the little floppy disk image that appears near your avatar after the hand finishes.)

Marie-Michele has reported a few bugs with the Euchre bots, including hand histories. Those hand histories make it possible for me to fix the problems. Most recently, the bot was seen to delay in playing the right bower to take a trick. This has been fixed. The Euchre bots are now a little bit smarter, and will be better teammates (or opponents!). Thank you, Marie-Michele!

Hey everyone,

USAFvet plays Double Deck Pinochle at World of Card Games. Recently, he shared with me the story of how he came to play that card game. I enjoyed reading it, and I thought others might too! So I asked his permission to publish it on the site. Here it is - USAFvet's Double Deck Pinochle story.

Marya

About a week ago, someone reported to me that they tried to download a hand history in Internet Explorer, but a problem occurred - the file was not correctly downloaded.

It turns out that there was a problem with this download in both Internet Explorer and Edge (two common Windows browsers).

As of this morning, the problems have been fixed. So you should now be able to download hand histories for Euchre, Hearts, Spades, and Pinochle.

Click here to download previous hand history

floppy disk icon

Some people like to download hand histories so they can review what happened in the previous hand. They are also useful when reporting bad card-playing strategy by the bots. If you want to report such a problem with the bots, it's helpful to me if you email me a copy of the hand history when you saw the problem - that way, I can most easily figure out what went wrong. Without it, it's like searching for a needle in a haystack.

Hand histories are now available in Hearts, so you can take a look at all the cards played after the hand is over. This feature was already available in Euchre, Spades, and Pinochle. If you wish to report a bug in Hearts, please try to grab the hand history, and send it to me along with the bug report. To do this, click the little floppy disk that appears next to your nameplate after a hand. This will download a small text file that contains a link that can be used to show a replay of the hand, with all cards shown. Use this after your game to see how each card was played.

click to download your hand history

This morning's update also contained a bug fix. A few players were having trouble with a "TypeError" message when trying to get to a table. That problem has been fixed.

Also, the Spades bots got a bit of tuning to fix a bug in the way that they cover a nil bid. Thanks to "no bots plz" for reporting this issue (together with the hand history - that helped so much)!

Note: in my previous blog post, I mentioned that I would soon be adding a "decay" to the Elo ratings. I got a few comments from people who just want the Elo rating hidden. I could do this instead. Does anyone care which way this is done? The intent is to encourage people to play, rather than "sitting" on their ratings.

In Euchre and Spades, you can download a hand history. The file can be used to replay the hand of cards that you most recently played.
Now, a similar feature comes to Double Deck Pinochle at World of Card Games. It's a little different though. The people over at Power Pinochle have developed several tools for learning Pinochle. One of them is called the hand animator. Since they've already got this tool in place, I created the Pinochle hand histories so that they can be used together with their free, online tool.

To get your hand history, wait till the hand has finished. You will see a "Power Pinochle" icon appear next to your nameplate (note: this feature is only available to Registered users). Click the icon to download the text file that contains the hand history:

Click Power Pinochle icon to get your hand history

Once you have the history file, just copy the content into the hand animator textbox and hit the Submit button, and then you can follow the gameplay step-by-step.

The hand animator is loaded with a sample history to start, so you can try it out immediately without having to download a hand history. If you have any trouble at all with this, just write to me and I will help.

By the way, since hand histories were introduced, I've had lots of good tips from Euchre players who have sent me hand histories that showed problems with the bot strategies. I really appreciate that! I've implemented a number of changes to make the bots better, based on these bug reports. If you see the bots do something silly in Pinochle, grab the hand history and send it to me, and let me know what went wrong. I hope I can improve the bots for Pinochle this way, too.

This morning, the server was down for a brief time in order to apply some updates.

Registered players can now chat after their game has finished at World of Card Games! After the game finishes, you will now see three buttons: "Home", "Chat", and "Play ..." (see screenshot below).

Click Chat button to chat with the Registered players after your game

Clicking the "Home" button takes you back to the main home page, where you can decide what new game you want to play. Clicking the "Play ..." button takes you directly to a new game of the same type that you just finished (for example, Hearts or Spades).

Clicking the "Chat" button takes you to a "chat" table where only the registered players from the game you just finished are invited. This gives you time to discuss the game in as much detail as you like, should you care to do so. The "Chat" button goes away after 30 seconds, so be sure to use it as soon as possible if you are interested in a chat with your group of players. Caveat: No one is obliged to go to the chat table, so you may find that no one joins you there.

If any who played with you goes to the chat table after your game is finished, this chat table will show up in the list of tables. Here's a screenshot of how to recognize it:

"chat" table shows up in the list of tables

Another new feature is the ability to save your "hand history" in Spades. The hand history is already familiar to those who play Euchre. Registered players can download the history of their previous hand, and replay it in the browser to review all the cards played, one step at a time. In Euchre, this feature can be a nice tool to discuss strategy. It is also very useful to report bugs in the bots to me. I'm hoping Spades players will find it useful as well. Sometimes, people report problems with the bots, but it's too time-consuming for me to figure out just what happened. With this new feature, if the bots make a boneheaded mistake, you can grab the hand history and send it to me with a description of what went wrong. I will be more likely to fix a problem when I know exactly what happened, and can reproduce the issue.

To download the hand history, click the old-fashioned "floppy disk" icon that appears next to your avatar after a hand has finished. You can see what it looks like in the screenshot here.

Click the floppy disk icon to download the hand history in Spades

Hm, I can't believe I just called a floppy disk "old-fashioned"! :)

Another important change: at ranked tables, the Elo ratings now reward the first-place player only. Elo ratings in Hearts was discussed in the previous blog post. I did not receive a lot of feedback, one way or the other, about this... but most players appear to like the idea, so I've made the change. I will continue to keep track of any feedback on the issue. Please post to Facebook or Twitter or here on the blog if you have comments. (FYI: anonymous posts are not treated very seriously; anyone can post anonymously multiple times, so I don't consider them to be so useful.)

Registered players can now "replay" a hand of Euchre at World of Card Games!

At the end of each hand, you will see the image of a floppy disk appear next to your avatar. It looks like this:

replay Euchre hand history

When you click on that icon, a file will be downloaded to your computer. The file contains a link to the replayer at World of Card Games. When you paste that link into your browser address bar, you will be taken to the Euchre replayer at World of Card Games. With the click of a button, you are taken through every step of the hand, with all the cards shown.

Here's a sample link so you can try it: a case where I got lucky and our opponents were "euchred".

I've made this change along with a few bug fixes today. I hope the Euchre players will enjoy this new feature!