# Die Schwalbe

No. 172, August 1998

10097 - Alexander Zolotarew
Die Schwalbe Heft 172, 08/1998

12+9. What is the minimal number of Queen moves?

10098 - Alexander Kisljak
Die Schwalbe Heft 172, 08/1998
Ded. Günter Lauinger 50th birthday

11+13. First move of the wPh2?

10099 - Alexander Zolotarew
Die Schwalbe Heft 172, 08/1998

12+12. Last 29 single moves?

10100 - Werner Keym
Die Schwalbe Heft 172, 08/1998
Ded. Günter Lauinger 50th birthday

14+9. How many figures must be promotees so that White may mate in 2 in all cases?

10101 - Olli Heimo
Die Schwalbe Heft 172, 08/1998

10+14. Proof game in 20 moves

10102 - Peter van den Heuvel
Die Schwalbe Heft 172, 08/1998

14+14. Proof game in 29.5 moves

10103 - Peter Schäfer
Die Schwalbe Heft 172, 08/1998

12+4. May White castle right now?
(b) wRh3 -> wNh3
(c) Rh3 -> h1

10104 - Alexander Hölle
Die Schwalbe Heft 172, 08/1998

12+12. Is White O-O legal if bPb6 came from b7?

10106 - Frank Genenncher
Die Schwalbe Heft 172, 08/1998

6+5. Try to find n (n=1,2,3,...) move-pairs (i.e. one white + one black move) in which White makes sure that Black can't win, i.e. the position remains a draw.
Try to find the number A(n) of different possible white-black moves as a function of the movenumber n.
A(n) leads to a well-known number-series...