Quite a complicated one
Mate in 11 Brains be braining!

Yes, this is more a long exercise rather than an actual pattern.
Food for thoughts tho, especially the challenging O-O-O which although counter intuitive makes absolute sense once white realise that there is absolutely no counter play for black once castled.
Yes, this is more a long exercise rather than an actual pattern.
Food for thoughts tho, especially the challenging O-O-O which although counter intuitive makes absolute sense once white realise that there is absolutely no counter play for black once castled.
0-0-0 could also have been played one move earlier and lead to a solution of the same length!

Yes, this is more a long exercise rather than an actual pattern.
Food for thoughts tho, especially the challenging O-O-O which although counter intuitive makes absolute sense once white realise that there is absolutely no counter play for black once castled.
0-0-0 could also have been played one move earlier and lead to a solution of the same length!
Nice analysis! This is why it is more an exercise rather than a problem...
Hello here is the puzzle!
Good luck finding this one!