FEN:
8/ppp5/8/PPP5/8/7k/8/7K w - - 0 1
Position II
FEN:
6k1/8/5P1P/8/ppp5/8/1K6/8 w - - 0 1
Position III
FEN:
8/5p2/5k1P/7P/ppp5/8/8/1K6 w - - 0 1
Position IV
FEN:
8/8/5p2/4k2P/8/4K3/8/8 w - - 0 1
FEN:
6K1/3k2P1/8/8/8/8/4R3/7r w - - 0 1
Position II
FEN:
6K1/3k3P/8/8/4R3/8/6r1/8 w - - 0 1
Position III
FEN:
R7/5k2/P7/8/8/8/r7/6K1 w - - 0 1
Position IV
FEN:
8/r4pk1/6p1/7p/P6P/6P1/R4P2/6K1 w - - 0 1
Position I
FEN:
8/4Q3/8/7K/8/8/2kp4/8 w - - 0 1
Position II
FEN:
8/8/8/3K4/8/8/p2Q4/k7 w - - 0 1
Position III
(Ka1 and Qxc2 is a stalmate)
FEN:
8/8/6K1/8/8/1Q6/2p5/1k6 w - - 0 1
Position VI
FEN:
8/8/6K1/8/8/1Q6/2p5/1k6 w - - 0 1
Advice to activate the King in endgames. Bring it to the middle of the board when Queens and Rooks are out. Either to win the game or to save it.