Fairy chess composition

# No.1730 (JM)

Original Fairy problems
JF-2023:
01.01.2023 - 31.12.2023

No. 1730 James Malcom
USA
original - 22.01.2023

White Kc1 Qd7 Sa1b3 Bb8 Pa4b4c2f2h3 Black Kb6 Qc8 Ra5 Bb1 Pb7c3c7f3f6f7h4h7
ep 104                       10+12
White forces an en passant capture to take place; C-

Solution: (click to show/hide)

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Georgy Evseev
January 23, 2023 15:48

3.Bxc7 Ka7 4.Bb6+ Ka6 5.Bd4 and Qc4+ soon…
Did I miss something?

Joost de Heer
January 24, 2023 10:14

Or even worse: 1. ba5 Ka6 2. Qd3 b5 3. ab6ep
In the intention, the triangulation is dualistic.

Joost de Heer
January 25, 2023 14:57

Is the following a possible fix?
EDIT: Oops, seems to lose one repetition, so it’s an ep93.

Last edited 1 year ago by Joost de Heer
Georgy Evseev
January 25, 2023 20:08

Bb8 can still be transferred to b6 and this frees Qc8 and white Knights. I do not see a clear sequence yet, but everything seems very suspicious.

Joost de Heer
January 26, 2023 09:12

After the black pawn moves on the king side are exhausted, how do you remove the bishop again from b6 after c5? Not saying that it’s not cooked, but I don’t see a clear way.

Georgy Evseev
January 31, 2023 09:59

The following method seems to work.
1.ba Ka6 2.c8Q f3 3.Bc7
So, 3…Ka7 4.Bb6+ Ka6 5.Qf5!
Black f-pawns are stopped. Now, white only need tempos to force h7-h6-h5.
When afterwards black play c5 white play Qxc5 f5 – Qc8 f4 – Bd4 f5 – Qc4+ having just enough black tempos in reserve.
So, the solution should at least be shortened by one more white king run by shifting pf6 to f5.

Last edited 1 year ago by Georgy Evseev
Joost de Heer
January 30, 2023 16:43

By the way, ‘C-‘ usually means ‘cooked’, ‘C?’ means ‘not computertested’.

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