[Retros] Puzzle - Pronkin-knight
per.olin at luukku.com
Fri Sep 9 11:15:51 EDT 2016
Very nice, Nicolas, superb play by the black pieces! Sometimes I test proof game ideas from other starting positions than the initial game array. In this case it is obvious that Chess960 has nothing to give; this time I guess, fairly convinced, that no Chess960IP will allow for Pronkin-knight and 29 homebased pieces. But I would not mind if my guess once more is proven wrong!
Nicolas Dupont kirjoitti 08.09.2016 kello 18:55:
> > Construct a Knight Pronkin (during a PG an original Knight is
> > captured and replaced on its homesquare by a promoted one) with 28
> > homebased pieces in the diagram position.
> Per proposed the following 27 attempt:
> 1. Cg1-f3 Pa7-a5 2. Cf3-d4 Pa5-a4 3. Cd4-b3 Pa4xb3 4. Pa2-a4
> Ta8-a6 5. Pa4-a5 Ta6-b6 6. Pa5-a6 Pc7-c6 7. Pa6-a7 Tb6-a6 8.
> Pa7-a8=C Dd8-a5 9. Ca8-b6 Re8-d8 10. Cb6-c4 Rd8-c7 11. Cc4-e5
> Rc7-d6 12. Ce5-f3 Da5-d8 13. Cf3-g1.
> Not easy but nevertheless possible to reach 28, as follows:
> 1. Cg1-f3 Cb8-c6 2. Cf3-e5 Cc6-d4 3. Ce5-c6 Cd4-f5
> 4. Pd2-d4 Pd7xc6 5. Pd4-d5 Re8-d7 6. Pd5-d6 Rd7-e6
> 7. Pd6-d7 Dd8-e8 8. Pd7-d8=C Re6-f6 9. Cd8-e6 De8-d8
> 10. Ce6-f4 Rf6-g5 11. Cf4-h3 Rg5-h4 12. Ch3-g1
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