The best counterattack is Schliemann defense aka Jaenisch gambit 3...f5. 
Best counter attack of Black to RUY LOPEZ opening
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FIRST EXAMPLE:
or
The Second was given by @Yigor, thanks dude 
I think the best answer lies in the book-Attacking The Spanish,by Mr. S.Brunello.This author suggests - The Schilemaan gambit,Marshall Attack,and the new Gajeweski Gambit.
You can always try the Open Ruy, where after 5. 0-0 it's ... Nxe4. I know Korchnoi played it and Ding Liren used to play it a lot.
Nckchrls wrote:
You can always try the Open Ruy, where after 5. 0-0 it's ... Nxe4. I know Korchnoi played it and Ding Liren used to play it a lot.
Good luck learning 25 moves of theory for equality in the Karpov gambit.
Sid3141926535 wrote:
Nckchrls wrote:
You can always try the Open Ruy, where after 5. 0-0 it's ... Nxe4. I know Korchnoi played it and Ding Liren used to play it a lot.
Good luck learning 25 moves of theory for equality in the Karpov gambit.
White has the same problem too. Of memorizing a lot of moves.
Often ...Be7 can sidestep any of those Ng5 tricks if Black wants. Of course, many of these lines are going to be tricky. But that's what you get when you want to counter attack a White Ruy.
Sid3141926535 a écrit :
Nckchrls wrote:
You can always try the Open Ruy, where after 5. 0-0 it's ... Nxe4. I know Korchnoi played it and Ding Liren used to play it a lot.
Good luck learning 25 moves of theory for equality in the Karpov gambit.
Black is not forced to enter this variation...
MiloYiannopouIos wrote:
why would anyone play e5 in response to e4 zzz
A lot of Grandmasters do it.
CampScouter wrote:
The Second was given by @Yigor, thanks dude
It was a pleasure to help. 
MiloYiannopouIos wrote:
why would anyone play e5 in response to e4 zzz
Hahaha .... here I reply to any 1st move randomly (using the generator of random integers). 
A bunch of possibilities:
Starting Out: Ruy Lopez by John Shaw (2003)
https://web.archive.org/web/20140627024240/http://www.chesscafe.com/text/hansen53.pdf
A Spanish Repertoire for Black by Mihail Marin (2007)
https://web.archive.org/web/20140626195205/http://www.chesscafe.com/text/hansen102.pdf
The Berlin Defence by Igor Lysyj & Roman Ovetchkin (2012)
https://web.archive.org/web/20140627104938/http://www.chesscafe.com/text/hansen159.pdf
https://www.newinchess.com/media/wysiwyg/product_pdf/7076.pdf
The Ruy Lopez: A Guide for Black by Sverre Johnsen and Leif Johannessen (2007)
https://web.archive.org/web/20140627023224/http://www.chesscafe.com/text/hansen94.pdf
Bologan's Ruy Lopez for Black by Victor Bologan (2015)
http://www.sjakkbutikken.no/produkter/bologans-ruy-lopez-for-black/
https://www.newinchess.com/media/wysiwyg/product_pdf/9016.pdf
Play 1 e4 e5! by Nigel Davies (2006)
https://web.archive.org/web/20140626201436/http://www.chesscafe.com/text/hansen80.pdf
https://web.archive.org/web/20140627083715/http://www.chesscafe.com/text/hansen98.pdf
The Berlin Wall by John Cox (2008)
https://web.archive.org/web/20140627050257/http://www.chesscafe.com/text/hansen115.pdf
Attacking the Spanish by Sabino Brunello (2009)
https://web.archive.org/web/20140627105306/http://www.chesscafe.com/text/hansen124.pdf
http://www.qualitychess.co.uk/ebooks/Attacking_the_Spanish_excerpt.pdf
The Ruy Lopez Revisited by Ivan Sokolov (2009)
http://dev.jeremysilman.com/shop/pc/Ruy-Lopez-Revisited-The-p3765.htm
https://www.newinchess.com/media/wysiwyg/product_pdf/931.pdf
Fighting the Ruy Lopez by Milos Pavlovic (2009)
https://web.archive.org/web/20140627105306/http://www.chesscafe.com/text/hansen124.pdf
Slay the Spanish by Timothy Taylor (2011)
https://web.archive.org/web/20140627040230/http://www.chesscafe.com/text/hansen146.pdf
The Kaufman Repertoire for Black & White by Larry Kaufman (2012)
https://web.archive.org/web/20140626221508/http://www.chesscafe.com/text/hansen162.pdf
https://www.newinchess.com/media/wysiwyg/product_pdf/955.pdf
Grandmaster Repertoire 13 – The Open Spanish by V. Mikhalevski (2013)
http://reviews.dailychess.org/grandmaster-repertoire-13-the-open-spanish-qualitychess-by-v-mikhalevski/
https://www.newinchess.com/media/wysiwyg/product_pdf/7234.pdf
Anti-Spanish. The Cozio Defence by Alexey Dreev (2014)
Playing 1.e4 e5 - A Classical Repertoire by Nikolaos Ntirlis (2016)
https://www.newinchess.com/media/wysiwyg/product_pdf/7572.pdf
http://www.qualitychess.co.uk/ebooks/Playing1e4e5-excerpt.pdf
The Spanish Main Road by Evgeny Solozhenkin (2016)
https://www.newinchess.com/media/wysiwyg/product_pdf/7595.pdf
The Zaitsev System by Alexey Kuzmin
https://www.newinchess.com/media/wysiwyg/product_pdf/9036.pdf
AC1312_terciopelo wrote:
For once, I agree with Mr. Yigor! The Schliemann is the sharpest and the most fun!
Only once ?!? Omg, am I so weird / extravagant ?!?
Thanks again everyone! I found out that Schliemann is good for I tried it with my opponent on my last chess tournament in our school. Sadly, I finished it with a score of 2.5-2. It had 5 rounds.
@Pfren: what other Spanish lines do you recommend as being ambititious without a lot of draws? Is the open one of them??
Personally I like the Burn variation of Bird's Defence (Attack?), Alapin's 3...Bb4 and the Open
Maybe the modern Steinitz? Has a gambit line much like the Schliemann. See video
But then again, white might decide to chop the knight off early after d6.
I'm just wondering what is the best counter-attack to the Ruy Lopez opening, because this opening is so aggressive in the middle game.