Puzzle Problem Explained

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Avatar of kaja1717

Hey guys! I have just one more problem with today's puzzle I've done.

In this position, I played Rxa2, followed by delivering checkmate Ra1#. However, chess.com determined that my answer was incorrect and I was really frustrated with this. To be honest, do anyone knows is this the correct solution for this puzzle or what else should I play in this case? Just LMK with your own ideas and explanations to explain whether I got it right or wrong.

Avatar of Plm019

After rxa2 there is kb1. I think the solution is to get a queen vs rook position with help of your advanced pawn

Avatar of blueberryoatmeal2

I'd play 1.d2+ Kd1 (forced) 2. Rb1+ Ke7 (forced) 3. Rxf1 Kxf1 (not forced, but probably the least terrible option) 4. d1 = Q+