Geoff Foster (Australia)


Original Fairy problems
JF – 2017(I): January – June

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No.1198 Geoff Foster

original – 21.03.2017

Solution: (click to show/hide)

white Ke3 Ba8 Rc3 Qd2 black Kb1 Pc4c5e6g6

s#22                                             (4+5)
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Kjell Widlert
Kjell Widlert
March 21, 2017 15:20

I remember seeing a s# ending with ABC before, in feenschach – but that may have been a series s# and it may have had some additional condition such as PWC, so this might very well be the first pure s# in ABC. Which is in itself not really important.

ABC seems to give very interesting possibilities to selfmates, as a mating move can be forced without having Black in a very restricted position. You can imagine many free black pieces, perhaps guarding K flights, unable to interfere because of ABC. It is not so in this problem, but note that Black cannot play 22.- Kc1??, Ke1??, or exd4+ because of ABC.

The main idea must be the beautiful B staircase down and then up again, just in order to stalemate the bK so that e5 is forced. The ending after that manoeuvre is perhaps a bit long, but quite efficient, producing an ideal mate. Very good problem!

Vaclav Kotesovec
March 21, 2017 22:30

Nice idea, but please remove “C+”. Test with Popeye was only partial, not full.

S. K. Balasubramanian
S. K. Balasubramanian
March 28, 2017 15:50

As Kjell said, forcing e5 on 6th move is very interesting.

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