Board texture

Board texture is the shorthand for how connected and draw-heavy a flop, turn, or river is. A dry board is disconnected and blocks most draws, such as K-7-2 rainbow, where no two cards work together and no flush is possible. A wet board is heavily coordinated, such as 9-8-6 with two cards of one suit, where straights and a flush draw are all live at once.

Texture matters because it decides whose range benefits. A raiser's range, built from big pairs and broadway hands, tends to hit a dry, disconnected flop harder than a caller's range built from suited connectors and small pairs. A wet board flips that balance, since the caller's range often holds more combinations that turn into two pair, a straight, or a flush draw.

Worked example. On K-7-2 rainbow there is no flush draw and only backdoor straight draws, so a raiser can bet a wide range for a small size with little to fear. On 9-8-6 with a flush draw live, an opponent holding two suited cards already has 9 outs to the flush alone, before counting straight outs, so the same wide, small bet gives up far more equity.

Reading texture only makes sense alongside range advantage: the same flop can favour different players depending on who raised before it.