The Sim Browser Feature in Lucid Poker

How It Works

The Sim Browser is Lucid's game tree explorer. It gives you direct access to pre-solved GTO solutions across preflop and postflop situations so you can study any spot in depth, without needing to run a solver yourself.

Free users can browse all preflop situations and up to 5 postflop spots per day. A Lucid Pro subscription removes the postflop limit and unlocks custom turn and river resolves with Lucid's built-in solver.

Accessing the Sim Browser

1. 1
   Open Lucid and find the Sim Browser icon

   Look for the hand grid icon. On desktop it appears in the left-hand menu. On mobile it is in the bottom navigation bar.
2. 2
   Select a game type

   Tap the game type label in the top-left corner to open the selector. Available options include 6-max cash, high rake, club sims, single size, and more. Tap Confirm to apply.
3. 3
   Select a stack size

   Just below the game type, tap the stack size label to switch between available stack depths for your chosen game type.
4. 4
   Navigate the game tree

   Use the node navigation controls at the top of the screen to build your spot. Select actions for each position to move through the tree toward the node you want to study.

Navigating the Game Tree

The node navigation bar at the top of the screen shows you where you are in the hand. Each position acts in sequence. Select an action for a position to advance to the next decision point.

As you navigate, keep an eye out for colored dots on action buttons:

• Red dot: This action ends the game tree. No further nodes exist (e.g. a preflop fold).
• Blue dot: A postflop node exists but is not available in the current sim pack. This is most common in multi-way spots. Multi-way postflop support is planned for a future update.

Postflop Info Panel

Once you reach a postflop node, additional information appears next to the board:

• Pot size: The total pot going into the flop, in big blinds.
• SPR: Stack-to-pot ratio. How many pot-sized bets remain in effective stacks. A higher SPR means more room to maneuver across remaining streets.
• Geometric bet size: The single bet size as a percentage of pot that, if used on every remaining street, results in an all-in by the river. Useful for players who think in terms of consistent sizing across streets.

Reading the Hand Grid

The 13x13 hand grid shows the solver's recommended strategy for every hand combination in the active player's range. Each cell is color-coded by action, and the height of each color bar represents the frequency of that action.

You can interact with the grid in two ways:

• Hover over any cell to preview that hand's action breakdown.
• Click a cell to lock it in and see the full frequency breakdown for that specific hand in the center of the screen.

Height display options

Three height modes are available under the grid controls:

• Actual: Bar heights reflect true frequencies. The most accurate view for understanding relative frequencies.
• Normalized: The highest-frequency hand is scaled to fill its cell, and all other hands scale proportionally. Easier to read when frequencies are small.
• Full: Every hand displays as if played at 100% frequency. Useful for quickly identifying what each hand does, but removes frequency weighting.

Rounding options

Solver strategies often include fractional frequencies that are difficult to implement at the table. The rounding control simplifies these:

• No rounding: Raw solver output. Maximum accuracy.
• 5%: Rounds all frequencies to the nearest 5%. Cleans up mixed strategies significantly.
• 10%: Rounds to the nearest 10%. Good for studying simplified ranges.
• 25%: Rounds to the nearest 25%. Best for building easy-to-execute strategies.

Strategy view modes

Two view modes are available in the strategy panel:

• Frequency: Shows how often the solver takes each action. This is the default view.
• EV: Shows the expected value of each action in big blinds. Use this to understand how much each decision is worth, not just how often the solver takes it.

Equity and EV Breakdown

At the bottom of the screen, Lucid displays equity and EV totals for each player's range at the current node.

• Equity: Each player's share of the pot based on raw hand strength. Always adds up to 100%.
• EV: Each player's expected value in big blinds. Always adds up to the size of the current pot.

Clicking Equity or EV switches the hand grid to a heat map. Greener cells indicate hands with higher equity or EV. This gives you a fast visual read on which parts of a range are strongest at a given node.

Hand Classes and Range Filters

The right panel offers two tabs for more targeted analysis:

Hand Classes tab

Breaks the active range into categories such as sets, two pair, top pair, draws, and air. Click any hand class to highlight only those hands on the grid. Multiple categories can be selected at once.

Strategy View tab

Lets you filter the range by suit combinations. For example, clicking the diamond-diamond filter shows only hands where both hole cards are diamonds. This is useful for isolating flush draw behavior on wet boards.

Three-Dot Menu Options

Tapping the three-dot menu in the Sim Browser gives you additional tools:

• Open in New Window (desktop only): Opens a second Sim Browser window. Useful for side-by-side spot comparison.
• Create Custom Drill: Builds a drill from the current node for active practice reps.
• Play Selected Preflop Spot: Launches a drill at the current preflop node directly.

Custom Turn and River Resolves

On turn and river nodes, a Resolve option becomes available. This is powered by Lucid's built-in solver and lets you generate an unexploitable strategy for a specific runout using custom bet sizes for each player.

Instead of being limited to pre-solved bet sizes in default sim packs, you can model exactly the bet sizes your opponents use and find the correct counter-strategy.

1. 1
   Navigate to a turn or river node

   Build your spot through the game tree. The Resolve option only appears at turn and river decision points.
2. 2
   Select the runout card

   Choose the specific turn or river card you want to study.
3. 3
   Set bet sizes for each player

   Choose which bet sizes each player can use. Tap the pencil icon to enter custom sizes. You can set multiple sizes per player or restrict each to a single option.
4. 4
   Tap Resolve

   Lucid's solver runs and returns an unexploitable strategy based on your inputs within a few seconds. Results appear in the hand grid and strategy panel.

Next Steps

After exploring a spot in the Sim Browser:

• Use Create Custom Drill from the three-dot menu to practice the node with active reps
• Check the Hand Classes tab to understand which hand types drive the strategy
• Run a custom resolve on the turn or river to model specific opponent sizing tendencies
• Review Progress Tracking to see how your drill performance in these spots trends over time