Kugare3,844,160 Locked 18 Jan 2014 27 Mar 2014
+++ General Info +++
Like the description say, you have to reach Level 20 in Adventure Mode. If you lose all your hearts, you have to start over. You can reach Level 20 in 1 - 2 hours, but if you need longer... take it slow and do your best to evade traps. Losing the patience is deadly and lead you to mistakes. You can close the game and continue anytime you want.
As a Minesweeper Premium Member it's much easier, but you can complete it without this membership. It's your decision.
+++Minesweeper Premium+++
You can start every Level with 5 Hearts (instead of 3) OR 1 extra Dynamite.
If you lose all your hearts, you can use something like a "continue" to get "revived" with 1 heart, but you can do this only one time per game! (not per level)
edit: okay, here is another way to obtain extra hearts:
Credit goes to KINGvJAMES
"Sometimes the game will ask you to watch a short clip for more hearts before hand(non-premium) so if it doesn't ask you that from the start just die and restart."
Now some (hopefully) useful tips for you:
+++ Items +++
It's a pretty good idea to collect and keep pickaxes, dynamite and maps for the later levels. Don't waste you stuff to collect gold. If you know how to play Minesweeper, you should be able to figure out the position of the mines/traps most of the time, but you can't evade a risky situation all the time.
First lose your hearts until you only have one, because you have new hearts in the next level. With only one heart, you should use your items to solve critical situations. Just make sure it's REALLY necessary and keep in mind dying with a bunch of items doesn't help you either.
The first 10 levels are not THAT hard and you should be able to solve them without items. I had 9 pickaxes, 9 dynamite and 6 maps at the end of level 9!
+++ Explore +++
First make sure you clear the path to the exit, but if you have more than 1 heart, don't enter the exit immediately. Go back and make sure you collect every Item. Some of them are a bit hidden and entering the exit with 2 or 1 hearts doesn't make a difference. So you can sacrifice your hearts, until you only have one left.
+++ Shields +++
Don't collect Shields immediately. First lose your hearts and clear the path to the exit. Now collect the Shield and enter the exit. The Shield carry over and you can take one more hit in the next level. If you mess up the current level and only have 1 heart, make sure to collect the Shield earlier of course.
+++ Shortcuts & Dead Ends +++
You can use your dynamite to create shortcuts. If you are one key/arrow to short and don't wanna go back and risk to lose a heart by searching, you should think about just using it. Sometimes you also see more than only one path. If you choose the wrong way with a trap at the end, maybe you want to use your dynamite to move on.
+++ Level 20 +++
Use ALL your Items and pay attention. Maps are really handy, because there are many traps in this stage! Gold can also be surrended by traps... don't let fool you. This level is a bit harder than every other level before (at least it was my experience), but with enough Items you should be able to reach the exit and unlock your achievement.
Well... that's all for the moment. Good luck everyone!