change log for P1221517 (close)

datetimeuserobjecttablefieldtypeoldnew
2022-09-140:29:42Dieter Berlin Line closing (s, vierfach) refkey   add  
2022-09-140:26:01Dieter Berlin P1221517 problems solution  update 1. Td4! droht 2. Dd3# 1. ... Tf5 2. Sg4# 1. ... Lf5 2. Dh6# 1. ... Sf5 2. Lg5# 1. ... f5 2. Dh3# 
2022-09-140:23:42Dieter Berlin P1221517 problems cpluscomm  update A.Baumann: Gustav 4.1d 
2022-09-140:23:42Dieter Berlin P1221517 problems cplus  update