Infinite Picroit/Picrite: http://www.gamefaqs.com/boards/183130-pokemon-picross/73081592

I'll have to try this. Seems foolproof once you get the hang of it, because you can even circumvent the lockout for cheating the clock, if you mess up. They only figured out this whole trick a few days ago.

By the way, if you finish the daily practice within the time limit of two minutes, you'll get an extra 2 picrite.

Tested the infinite daily practice trick on Pokémon Picross. It works.

1. Wait until midnight; inside or outside the game doesn't matter (or set your 3DS to a wrong time in advance if actual midnight isn't doable with your schedule; messing with the clock will probably result in getting locked out for the day though; the game penalizes big adjustments to the clock with a 24 hour long lockout; so basically, if you do it this way, be prepared to wait for a full day before you can cheat the game for real).

2. Once it's midnight, daily practice will become available. Play it to get in-game currency. Supposedly you can exit practice if you expect to fail the time limit and restart it; the layout of the puzzles doesn't change, so a good memory can make up for a deficiency in logical thinking and/or lacking speed when it comes to pushing buttons.

3. After the daily practice, exit the game. Go to the 3DS system settings and turn back the clock to 0:00.

There's a catch here: If at this point you have to go back more than 9 minutes to arrive at 0:00, you have to do it in intervalls. The game penalizes you if you go over the limit of 9 minutes, so if the system clock is already at 0:15 once you get to the settings, you'll have to turn back 9 minutes, boot up the game and touch the title screen to make the game save on the map, exit the game, go to system settings, turn back the remaining minutes, then start the game to finally access daily practice again. Should the lockout screen appear, you can circumvent it by pressing the home button and exiting the game; as long as you don't confirm the lockout message, you aren't locked out for the next 24 hours.

If you manage to beat the daily practice within three tries, you can ignore the above paragraph. Most of the time I can beat the level 10 practice conveniently under 1:40 (time limit is 2:00), so by the time I get to the system settings, the 3DS clock is at 0:02 or 0:03.

4. If you boot up the game after you've changed the 3DS clock, the daily practice should be available again.

If you are flawless on the daily practice, you can perform the entire process about 20 times in an hour which normally accounts for three weeks of doing the daily grind. Tiresome, but it speeds up the game tremendously. Also, remember that unlocking regions increases the bonus you'll get for completing the daily practice. For every fifth region you unlock (order does not matter), the bonus increases by 1 picrite.

Um are you talking about Pokemon Super Mystery Dungeon cause there are no weapons or classes, and the final boss isn't too difficult.