Die Schwalbe

2 problem(s) found in 2883 milliseconds (displaying 2 problem(s)). [COMMENTDATE>=20220810 AND G='Retro' AND NOT K='Platzwechsel' AND A='Malcom, James'] [download as LaTeX]

1 - P1384294
James Malcom
MatPlus.net Forum 27/12/2020
nach Bosko Miloseski
P1384294
(11+12)
#51
1. ... Td7 2. Lb1! Kd6 3. De5+ Kc6 4. De6+ Td6 5. De8+ Td7 6. Ka2 Kd6 7. De5+ Kc6 8. De6+ Td6 9. De8+ Td7 10. Ka1 Kd6 11. De5+ Kc6 12. De6+ Td6 13. De8+ Td7 14. La2 Kd6 15. De5+ Kc6 16. De6+ Td6 17. De8+ Td7 18. Kb1 Kd6 19. De5+ Kc6 20. De6+ Td6 21. De8+ Td7 22. Kc1 Kd6 23. De5+ Kc6 24. De6+ Td6 25. De8+ Td7 26. Kd1 Kd6 27. De5+ Kc6 28. De6+ Td6 29. De8+ Td7 30. Ke1 Kd6 31. De5+ Kc6 32. De6+ Td6 33. De8+ Td7 34. Kf2 Kd6 35. De5+ Kc6 36. De6+ Td6 37. De8+ Td7 38. Kg3 Kd6 39. De5+ Kc6 40. De6+ Td6 41. De8+ Td7 42. Kh4 Kd6 43. De5+ Kc6 44. De6+ Td6 45. De8+ Td7 46. Kg5 Kd6 47. De5+ Kc6 48. De6+ Td6 49. De8+ Td7 50. Kxf5! Kd6 51. De6#

50. Kf6? Kd6! Drawn by the 50 move rule!
play all play one stop play next play all
White's pre-diagram move couldn't have been a capture, so the 50-move counter has already been set to 1. Thus, White must play 50. Kxf5 in order to reset the counter, or else Black will draw.

See P1372258

http://matplus.net/start.php?px=1609121267&app=forum&act=posts&fid=gen&tid=2590
Henrik Juel: 3 and 5 captures by white and black pawns are obvious, leaving [Ph2,Ph7], so the remaining white capture was hxg (with promotions on g8 and h1) or officerxPh (with promotion on h8) (2022-11-05)
comment
Keywords: 50 move rule
Genre: Retro, n#
FEN: n3Q3/1pp5/brkr4/Bp1p1p2/1P1PpP2/KPp1P3/B1P1P3/8
Input: James Malcom, 2020-12-28
Last update: A.Buchanan, 2022-11-05 more...
2 - P1410861
James Malcom
Siegfried Hornecker
Joaquim Crusats
Andrew Buchanan

12 MatPlus.net Forum 25/06/2023
P1410861
(16+4)
What is curious about this position?

Fewest Black pieces requiring all 16 White pieces in a legal checkmate position

https://matplus.net/start.php?px=1689032781&app=forum&act=posts&fid=gen&tid=3043
A.Buchanan: Mu-Tsun Tsai suggests that for construction problems such as this, the stipulation might be "What is curious about this position?" (2023-07-13)
James Malcom: That feels apt. (2023-07-14)
more ...
comment
Keywords: Superseded by (P1410903)
Genre: Retro, Fairies
FEN: B1Qr2RK/3P2N1/1P4RB/1rP5/4kP2/PPP5/q2P4/2N5
Input: James Malcom, 2023-07-11
Last update: A.Buchanan, 2023-07-27 more...
Show statistic for complete result. Show search result faster by using ids.

https://pdb.dieschwalbe.de/search.jsp?expression=COMMENTDATE%3E%3D20220810+AND+G%3D%27Retro%27+AND+NOT+K%3D%27Platzwechsel%27+AND+A%3D%27Malcom%2C+James%27

The problems of this query have been registered by the following contributors:

James Malcom (2)