Put your pieces in their best possible squares.
Chess wisdom in one liners...
"Only he who never plays never loses." - Anatoly Karpov
"Every chess master was once a beginner." - Irving Chernev
"In life, as in chess, forethought wins." - Charles Buxton
"It's always better to sacrifice your opponent's men." - Savielly Tartakower
"Even a poor plan is better than no plan at all." - Mikhail Chigorin
"When you see a good move, look for a better one." - Emanuel Lasker
"One bad move nullifies forty good ones." - Bernhard Horwitz
"Hard work is a talent." - Garry Kasparov
"Every pawn is a potential queen." - James Mason
"Pawns are the soul of chess." - Francois-Andre Philidor
"A good player is always lucky." - Jose Raul Capablanca
"Only the player with the initiative has the right to attack." - Wilhelm Steinitz
"If your opponent offers you a draw, try to work out why he thinks he's worse off." - Nigel Short
And a bonus:
"There are two types of sacrifices: correct ones and mine." - Mikhail Tal
I agree with everything listed above, except for the Steinitz one.

Put your challenge at +200 to -25 if to learn quickly, but suffer much stress from experts beating you up.
Put your challenge at +25 to -200 for an easy life, but learn slowly and get bored beating up beginners.
Keep your challenge at +200 to -200 and get stressed and bored in equal measure. ![]()
- "If it looks like a sacrifice might worry his King then have a go!"
- "Move all your pieces as close to his King as you can."
- "If 1 & 2 fail start moving pawns forward toward the King, trying not to hang them."
I'm not sure if any of these plans are really wise, but they are the only ones that come to mind when I'm stuck! But given...
"Even a poor plan is better than no plan at all." - Mikhail Chigorin
then they are wise!
"After the game, do quick analysis and the computer will show you several better plans you can use next time."
... I'm certain that's wise, if a bit humiliating.
When you see a bad move, look for a worse one.