1. Re8+ Kh7 2. Rh8+ Kxh8 3. Qf8+ Kh7 4. Qxg7#

1...Qe2+ 2. Kh3 (otherwise ...c1+Q#) Qf1+ 3. Kh4 g5+ 4. Kh5 Qh3#.

1...Rd1+ 2. Ka2 Ra1+ 3. Kxa1 Qc1+ 4. Ka2 Qxb2#. But if 3. Kb3, ...Nd2+ 4. Kc3 Qc4#

1...Rxf1+ 2. Kxf1 Bd3+ 3. Ke1 Bc3+ 4. Nd2 Ra1#. If instead 3. Kg1, 3...Ra1+ 4. Ne1 Rxe1#.

*and of course Ng7 should have read Nh7.

alternate variation:

Rd8+ Kh7
Ng5+ Kh6
Rh8+ Ng7
Rxh7#

Interesting. 30 years ago, I learned it as:

Hablando del rey de Roma, pronto se asoma.

I wonder if there's some regional variation with the expression.

Formally: French, Spanish, ancient Hebrew, and German. (Years later, I claim no competence in the latter two.)

Informally: Italian, Portuguese, Esperanto, Irish, Welsh

Dabbled: too many to count

Especially since you've learned Spanish to A2, I'd say go for L'Italiano secondo il Metodo Natura. It's 50 chapters long, completely in Italian, and the text and audio are available free in a series of videos on YouTube. (Public domain, at least in the US.)

American here. Most of what I know about English grammar, I learned in French and Spanish classes at school (with the grammar taught in the target languages, not English.)

1...Qd1+ 2. Ka3 c4+ 3. b4 cxb3+ 4. Kb2 Qc2#

Hablo Inglés, Francés y Español. No he practicado mucho desde la secundaria, pero todavía recuerdo bastante. Intenté aprender alemán en la universidad, pero lo olvidé todo muy rápido. Así que ahora lo estoy intentando de nuevo.

¿Cuáles idiomas habla?

#langsky intro
49, he/him
Native: English
Competent but rusty: French, Spanish
Learning: German, Esperanto, Italian
Probably should be learning instead: Portuguese, Norwegian
Bucket list includes all 6 Celtic languages
Other interests: Indy 500, F1, philosophy, sudoku, chess