chess online

why doesn't the pawn take the queen? doesn't make sense to me.

This is a very nice puzzle, however the solution does become obvious when one realises the key is freeing up the rook for the discovered checkmate; the fact no black piece can block the white bishop, even in two moves, is telling. Bax, wthe queen on h3, the rook is safe taking the pawn on g4. If the pawn takes the queen, the rook can move out of reach of the king to h4.

Please someone help me. I have had no formal training whatsoever in chess, and I really do not understand the moves anyone refer to when you say rook to h4, queen on h3, or to me (seemingly) even more difficult when someone refers to something more complex: an alphanumeric followed by the examples. I don't know how to read/interpret it. Sometimes the abbreviations just don't make sense at all. I understand that the board is divided in squares, each one corresponding with the x- and y- axis: A1 to H8. The rest seems like a very foreign language to me- English not being my first language, but the third. Where do I go to learn more?

Thank you. I made a copy of that for future reference. You are very kind.