forking hell (challenge)

I like your style @Sarg0n.

Thanks to everyone for the feedback and high scores.

This may sound a bit forked up but I've added a new variant.

https://tailuge.github.io/chess-o-tron/public/quiz.html

Queen forks are easy until you just can't find that last one...

Knight highest: 5854
Queen highest: 5528

Getting better!

@seanysean pawn forks added since you seem to have cracked the others.

Okay, tried the queen fork variant.
@tailuge thanks for your work! And you are right about the difficulty of some queen forks xD
After I restarted three times after like 10 seconds, I made a whole run and got 6151

Now I also tried the pawn mode. This was not that great. A lot of positions arose more than once. Also there were too much pawn on first rank forks, which seem to be not the kind of fork you expect.
Got 5879, even though I got everything right and fast. I dont't know if it is possible right now to get over 6000 in pawn forks.

And finally I got over 6000 in knight mode! Needed a few more tries though.

So now my highscores are:
Knight forks: 6090
Quuen forks: 6151
Pawn forks: 5879

Thanks @Eldrail . These puzzles are filtered by machine from 1000 positions. I will find some more games and increase the pawn fork question set. What would be a good source of proper pawn forks - good players games or bad? I am undecided if I should filter out pawn promotion forks.

I'm not sure where more forks are found, but I guess it should be possible to find forks in most of the games. Probably it's hard to do but if you follow current games you might see interesting positions. Not too sure if this would be more work than your current way of finding games.
The problem with pawn promotion forks is - in my opinion - that you don't fork with the pawn, but with a different promoted piece. This is missing the point of a pawn fork, so it shouldn't be in the puzzles.
Thanks for your work and good luck in finding more games!

https://tailuge.github.io/chess-o-tron/public/quiz.html

Pins and skewers added.

This feels more useful to the chess student.

Any ideas for further machine detectable training features?

TODAYS RECORDS
Knight Forks 5496
Queen Forks 5246
Pawn Forks 5173
Rook Forks 3141
Bishop Forks 3702
Loose Pieces 5728
Checking Squares 5466
Hidden Attackers 1950
Pins & Skewers 1930

Best score: 5728 (Loose pieces)
Worst score: 1930 (Pins & skewers)

Hello @tailuge

Simple feedback, the featuretron is going better and better, great job!
I have noticed a mistake in the Knightfork training : http://imgur.com/a/mQY8p

Have a nice day.

#29 N is pinned. Solution is (white) Nxb7, Nxf7 and (black) Nf3+.