A range-versus-board explorer that runs entirely in your browser. Paint a range on the 13×13 grid (with weights), set a board, and it shows how the range connects — made hands, draws, and the range's overall composition.

What do the weights mean?

A weight is how often a hand is in the range. 100% means every combo is always there; 50% means the hand is played half the time, so its combos count half. This is how real ranges work — few hands are always-or-never.

Does it remove blocked combos?

Yes. Any combination using a card on the board or in the dead-cards box is excluded automatically.

Combo counting and classification are exact. Postflop equity is exact enumeration of every remaining runout; preflop equity is a labeled 40,000-deal simulation — the tool always says which one you're looking at.

The Study Tool

Top 25% ?

minus top −0%

painting Range A

Brush

The line — build the preflop action

Pick who opens, then each seat behind reacts — every step stacks below, 3-bet / 4-bet / 5-bet, as deep as the hand goes. The acting seat’s range paints on the grid: gold = call, red = raise, empty = fold. Ranges: Greenline 100bb 6-max (reference, approximate).

—

Board — flop, turn, or river

Dead cards — optional: your own hand, exposed cards

Shape — preflop

Equity — who’s ahead, and by how much

Exact enumeration — every live combo is dealt against the board and classified; combos blocked by the board or dead cards are removed. Weights carry through: a hand at 50% counts half.

Frequently asked

What is this tool?: A range-versus-board explorer that runs entirely in your browser. Paint a range on the 13×13 grid (with weights), set a board, and it shows how the range connects — made hands, draws, and the range's overall composition.
What do the weights mean?: A weight is how often a hand is in the range. 100% means every combo is always there; 50% means the hand is played half the time, so its combos count half. This is how real ranges work — few hands are always-or-never.
Does it remove blocked combos?: Yes. Any combination using a card on the board or in the dead-cards box is excluded automatically.
Is it exact?: Combo counting and classification are exact. Postflop equity is exact enumeration of every remaining runout; preflop equity is a labeled 40,000-deal simulation — the tool always says which one you're looking at.