by Mark Kirtley (in: Probleemblad 2-2000)

Following the first article (PB 1999-3), here is another collection
of proof games with solutions in no more than 7.0 moves. They are all
shortest proof games this time.

No. 1 has a deceptively tranquil look in
that no surviving piece is away from home, and in the next three examples
no pawn is away either. This suggests a history of switchbacks, and
one of the four compositions has a remarkable abundance of them, while
another hasn't any at all.

Peter's No. 5 is perhaps the only proof game
ever composed with three equal-length solutions without twinning. There
were two shorty composing challenges given in the first article. One
of them asked for an AUW, although I had real doubts that it was possible.
But in No. 7 Gianni presents it to us. The
other challenge was for two tempo maneuvers on the same side in one
line of play. No. 8 is an answer from the
combined efforts of Joost, Gianni and Michel, which incredibly has a
third tempo on the other side.

All the examples following No. 8 also have tempo play. Gerd's
No. 9 has now-you-see-them-now-you-don't
cross-captures. The quiet attractiveness of the five-move tempo trek
in Pascal's No. 10 is combined with a second
surprise. No. 11 has a theme and an anti-theme.
Michel's No. 12 gives the seeker of beauty
a lot to smile about. One of its themes has a name, but I think the
other one is new. Many thanks to those composers who contributed their
suggestions and originals!

1 - **Martin W. Hoffmann**

Schweizer Schachzeitung 1989

15+16. Proof game
in 4.0 moves

**(b)**: -bQd8

2 - **Gianni Donati**

Original

12+13. Proof game in 7.0 moves

3 - **Gianni Donati**

Original

15+13. Proof game in 5.5 moves

4 - **Peter Wong**

Phénix 1994

14+14. Proof game in 6.0 moves (2 solutions)

5 - **Peter Wong**

Problem Observer 1995

First prize

16+13. Proof game in 6.5 moves (3 solutions)

6 - **Mark Kirtley**

Original

14+16. Proof game in 7.0 moves (2 solutions)

7 - **Gianni Donati**

Original

15+14. Proof game in 7.0 moves (4 variations)

8 - **Joost de Heer, Gianni Donati
& Michel Caillaud**

Original

14+15. Proof game in 7.0 moves

9 - **Gerd Wilts**

Retros Mailinglist 1997

14+16. Proof game in 7.0 moves

10 - **Pascal Wassong**

Retros Mailinglist 1999

14+15. Proof game in 7.0 moves

11 - **Mark Kirtley & Michel Caillaud**

Original

12+16. Proof game in 7.0 moves (2 solutions)

12 - **Michel Caillaud**

Original

15+12. Proof game in 7.0 moves (2 solutions)