
happinessisawarmgun
20 ( +1 | -1 )
"Chess" by Edward Lasker
If anyone has this book could you please look at section 50 and explain it to me. It is based on king/rook endings and under promoting a pawn to a rook instead of a queen . I cannot see the logic .

brunetti
6 ( +1 | -1 )
I have not the book
but know K+R endings; if you may post the position/s I try to help you.
Alex

happinessisawarmgun
13 ( +1 | -1 )
"end-game study" by S.Saavedra . black king on h1,black rook on e5 ,white king on g6 , white pawn on f7. Black plays ...Re6 + .
2 Kg5 , Re5 +
3 Kg4 , Re4 +
4 Kg3 , Re1
5 Kf2 , Re5
6 Pf8 (R) !!?

parrvert
4 ( +1 | -1 )
Are you sure
it's not 5...Re4? Because then 6.f8=Q Rf4+ 7.Qxf4 stalemate.

happinessisawarmgun
1 ( +1 | -1 )
Sorry , yes 5......,Re4

happinessisawarmgun
9 ( +1 | -1 )
Lasker says white threatens Rh8 mate but why can white not do this with the queen ?

zdrak
24 ( +1 | -1 )
Because if the pawn is promoted to a queen black forces a draw by stalemate - see parrvert's post above. By promoting "only" to a rook white still gets the same mating threat, without allowing the stalemate option.

happinessisawarmgun
10 ( +1 | -1 )
Sorry if I sound stupid but why does white not have the same mating threat with Qh8 ?

happinessisawarmgun
4 ( +1 | -1 )
Sorry.....I see it now....king cannot move to h2 !!

gunnarsamuelsson
4 ( +1 | -1 )
search this book instead
Chess basics by George Costanza