A Paul Morphy's puzzle

Hello everybody, please help me solve this puzzle

By Paul Morphy, 1856.

White to play and mate in two moves.

Morphy was 10 years old when he invented this puzzle, his only known composition. The position is simple but cunning. The text reads "White to play and mate in two moves." and indeed White can, but only if you discover Morphy's surprise move--a move that will delight aficionados and beginners alike.

Copy/paste?

Hadn't seen this before but just worked it out. A beauty indeed.

AHA!!!! (took me about 3 minutes :D) 1. Ra6 bxd6 2. b7++

correct?

1. Ra6   b7xRa6

2. b7++

Thanks. Fun.

easy one but tricky !

Thank you powernow and bomtrown, but is it obligatory that black play b7xRa6?

I am just a beginner and want to improve.

 His only other choice is to move the bishop, in which case Rxa7#

Whether black takes the rook or moves the bishop, it will be mate on the second move by pawn or rook. 

all tey have said is correct, however, supposing you were playing as black, in that position you would probably say "well", it sure will look alot nicer if he doesn't have that rook" :D

but no matter where the bishop goes, it'll be mate.

I got it now, thank you very nuch powernow

Took me less than a minute and I'm a beginner. Sacrifice the rook, move the pawn, done.

nice

Eloquent

Excellent! I made Paul Morphy my new mentor, and not because of this puzzle.

[Nevermind...]

Possible.  More likely as black: "I'm not going to let him brilliantly sacrifice that rook and force a mate."  1. Ra6 ... 1-0

Paul Morphy is my idol. So, i know what Morphy think for this solve. 1) Ra6 bxa6 2) b7# OR 1) Ra6 Bc7 2) Ra7#