Here are some positions that you might want to look at:
https://www.chess.com/forum/view/endgames/pawn-endings-emanuel-lasker-and-reichhelm
https://www.chess.com/forum/view/endgames/triangulation-troubles
https://www.chess.com/forum/view/endgames/king-and-pawn-endgame-2018-10-31
https://www.chess.com/forum/view/endgames/trouble-understanding-the-solution-to-this-problem
Here are some positions that you might want to look at:
https://www.chess.com/forum/view/endgames/pawn-endings-emanuel-lasker-and-reichhelm
https://www.chess.com/forum/view/endgames/triangulation-troubles
https://www.chess.com/forum/view/endgames/king-and-pawn-endgame-2018-10-31
https://www.chess.com/forum/view/endgames/trouble-understanding-the-solution-to-this-problem
https://www.chess.com/forum/view/endgames/virtual-opposition-for-the-love-of-god-please-explain?page=2
thank you
https://www.chess.com/forum/view/general/do-you-think-that-triangulation-is-useful
https://www.chess.com/forum/view/for-beginners/endgame-fundamental-question
https://www.chess.com/forum/view/endgames/position-from-chess-mentor-on-king-pawn-endgame
https://www.chess.com/forum/view/endgames/how-do-you-identify-corresponding-squares
https://www.chess.com/forum/view/general/a-classical-endgame-study-by-luigi-centurini
Could anyone please post endgame positions of level unrated to 1800.
thanks!