Every game HydraSolver solves
Hold'em, Short Deck, and 4, 5 and 6-card Omaha (PLO, PLO5 and PLO6), hi-lo included. Two to nine players, cash games and tournaments with ICM and bounties.
Your solves.
Stay private.
Study the ranges, drill them in the trainer.
Nothing leaves your machine — every file is read locally, in the browser.
Need solves?
Drop
.hdv files or a folder Chrome and Edge keep a pointer to large packs. Other browsers copy files under 64 MB into this device; bigger ones need a re-import next visit.
Create your own HDVs with HydraSolver.com
Need customised solves for personal use? Send us the details, we'll send you the solves.
Need solves for commercial use in study tools or AI training? Contact us for pricing information. E-mail: support@hydrasolver.com
What you can study
Hold'em, Short Deck and Omaha GTO ranges, and a trainer
Open an .hdv file — a free one, one from the HDV Shop, or your own export from HydraSolver — and see what every hand does at every decision. Then train against it.
Charts
13 by 13 for Hold'em, 9 by 9 for Short Deck, and hand class by suit shape for Omaha. Save any chart as a PNG, or print a chart book of a preflop solve.
Postflop
Walk the tree street by street. Compare every flop in a pack by pairing, suits, connectedness and high card, and step through turn and river runouts.
Trainer
Answer hand by hand and see each answer graded by the EV it loses, from Best to Blunder. Missed spots come back until you get them right, and the leak finder ranks what you lost.
Ready-made solves
Start with two free HDVs. The HDV Shop sells Hold'em, Short Deck, PLO, PLO5 and PLO6 solves: preflop trees from heads-up to 9-max and 10bb to 500bb, bomb pot flops, straddles, K Poker and Nit Game.
Solve your own
HydraSolver is the desktop solver that makes these files. Export any street as .hdv and open it here.
Questions
Common questions
What is HydraViewer?
HydraViewer is a free website for studying solved poker
strategies. Drop in a .hdv file and you can study the
strategy and train against it. HydraSolver is the software that computes the solutions.
Is HydraViewer free?
Yes. HydraViewer is free. You only pay if you buy packs from the HDV Shop.
Do my files leave my machine?
No. Files you open stay on your computer.
Does it work offline?
Yes. After you have opened the site once, you can study files already on this device without a connection. Downloading packs from the shop still needs a connection.
HydraSolver vs HydraViewer — which do I want?
HydraViewer lets you study solved strategies in the browser.
HydraSolver is the desktop software that builds and solves trees.
You can export a .hdv from HydraSolver and open it
here.
Where do I get solves?
You can export a .hdv from HydraSolver, download a free pack, or buy a pack
from the HDV Shop. For custom solves, email support@hydrasolver.com.
What abstraction settings and rake were used for sims in the HDV Shop?
You can see rake for each sim in the shop — click Details. Our preferred abstraction settings change depending on game-type. Multi-way sims are usually run with Standard resolution while Heads Up sims are usually run with High resolution.
What games does it support?
It supports Hold'em, Short Deck, Omaha in four, five and six cards including hi-lo, two to nine players, and tournament solves with ICM and bounties.
Do I have to install anything?
No. Open hydraviewer.com and drop a file in.
Can I pay with Bitcoin?
Yes. You can pay by card or Bitcoin at checkout.
Can I install HydraViewer as an app?
Yes. In Chrome or Edge, use Install in Settings or the browser's install button. On iPhone and iPad, tap Share, then Add to Home Screen. It opens in its own window and works offline.
Contact
Get in touch
A pack question, or something else? Send a note and we will reply to your email.