[mbubb]

There is a chess training program called "Dr Wolf" which has a learning mode where you play the computer. At certain points it asks you to switch positions to see the weakness in your previous move - it is striking how effective that is to seeing the weaknesses in one's defense.

I am not particularly skilled in chess but the LiChess puzzles are a daily practice on the subway... I think it is my favorite. I really like the puzzle scenarios where you are down material but the correct series of moves leads ot a win. This insight is a confluence with BJJ where sometimes you can be in a bad position and reverse out of it...