[Aaryan]

Probably not a riddle, but it sure needs logic.

My friend, the chess nerd, called me about a chess puzzle he has seen. He gave me the following position over the phone (set it up on a chess board). Note that it is not real (king vs king is impossible), it is just theory.

White king on a1

Black king on a8

Now, white to move and reach either f8, g8, or h8 BY FORCE. Have fun.

Please try to give variations (with best play from black), as 1 move per post is tedious to read.

Edited April 15, 2011 by Aaryan

[Guest]

black's best bet is to try to stay parallel with white's king and an even number of squares away on white's move. white must try to break this by adopting the same strategy.

a2 b8

b2 c8

c2 d8

d2 e8

e2 f8

f2 g8

g2 g7

g3 g6

g4 f7

f5 g7

g5 f7

h6 g8

g6 -- and basically game here.

[Aaryan]

Great! You also know the Queen+king vs. king and pawn on 7th? I lost 2 dollars betting my friend I could solve it... Then it turned out that he had given me a drawn position.

[Guest]

the only one i know of is this one:

white queen d8 black king e1

black pawn e2 white king g3

black to move, white to mate in 5.

Edited April 18, 2011 by phillip1882