What engine plays with most resistance in endgames?

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chessBBQ

So i wanted to practice endgame positions against  Houdini.

My problem is that the comp doesnt give much resistance in lost technical positions,say the Lucena position.

What engine has the best endgame skills out there that will push me  and make me squeeze a win in this kind of positions?

chessBBQ

Any suggestions?

Zevras

Houdini plus tablebases? 

hakim2005

houdini