Pawns
I suggest that you cover the moves and try to figure out the moves yourself. Then look at the solutions and make the moves in your head, read out comments and click each move name. Then click here for our online PGN viewer. In addition you can load the PGN into a chess program and play the positions against the computer.--48--
Two Step Pawn Square
2steppsq
[FEN "6k1/8/8/8/8/8/P7/7K w - - 0 1"]
[PlyCount "9"]
{#} 1. a4 Kf7 2. a5 Ke6 3. a6 Kd6 4. a7 Kc7 5. a8=Q 1-0
White's first move is the "Two Step.". Black's "King Chases the Pawn," but cannot capture it due to the "Rule of the Square." And the outcome is a win for White.
--49--
Stepping In
stepin
[FEN "k7/8/2K5/7p/8/8/8/8 w - - 0 1"]
[PlyCount "9"]
{#} 1. Kd5 h4 2. Ke4 h3 3. Kf3 h2 4. Kg2 h1=Q+ 5. Kxh1 1/2-1/2
White "Steps In" to it, the Pawn Square that is, with his first move.