White mates in 9 moves
0-0-0 Mate!
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nice puzzle
If Edward Lasker was given this puzzle, would he be able to solve it against Sir George Thomas?
amazing puzzle
Nice one
cool puzzle.
All commentators missed the point of this problem, including the OP.
This is a seriously funny challenge! Just castling long wouldn't be worth setting up such a chaotic situation for. But in addition to the 0-0-0 line there is a variant where white checkmates with 0-0 as well! The latter one is in fact the superior play as it walks the bK across the board and sacrifices the rook on a1.
That is called a "dual" in chess study community.
A dual is where white has a workable alternative which is a composition flaw. Here it is black who makes the choice which is called a variation. You can't put two variations in one chess.com puzzle but you could point them out in the comments and in the solution column. In many problems it doesn't matter but here it is most desirable because the position looks extremely heavy for just a single castling checkmate - and solvers overlook the second one.
But thanks for posting the problem. It is very enjoyable!
You're right about that.
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