mate in 3

while googling backgrounds of another puzzle in here, i found this one: white to move. mate in 3.

1. O-O

1. ... c5 2. Qh1 with 3. Qa8#
1. ... b3 2. Qe1 with 3. Qa5#

Composed by... Sam Loyd?

Oh, it's T.R. Dawson (1923). But Sam Loyd had a similar one, The American Chess Journal 1877:



White to move, mate in four.

Composed by Thomas Rayner Dawson.
Here is another one by the same author. It's probably pretty easy, because you already know the context. Yet, it has some beauty in it. Mate in 2.

1. Bc6! O-O-O 2. Bb7#
Cute indeed!

Originally posted by heinzkat
1. Bc6! O-O-O 2. Bb7#
Cute indeed!

Originally posted by banx99
wait is that helpmate or else after Bc6, dxc6 and i don't see a mate for white

nvm i see the knight now