中位河牌同花面五注（MP River 5-Bet Monotone）
Refers to the fifth raise by a middle-position player when the community cards on the river are all of the same suit. This is an extremely rare high-risk maneuver.
The term is not a standard poker term, but a description of a specific rare scenario.
- MP: Middle Position, typically the 2nd or 3rd position at a 6-max table (UTG+1 or LJ).
- River: The fifth community card, the final one that determines the ultimate hand strength.
- 5-Bet: The fifth raise, usually occurring preflop (e.g., 2-bet, 3-bet, 4-bet, 5-bet); postflop, consecutive raises can go higher but in practice rarely exceed 4-bet.
- Monotone: Refers to all community cards being of the same suit, making a flush draw possible.
Combined meaning: Postflop, when the river has a monotone board, the player re-raises (i.e., makes a 5th raise) against the opponent's 4-bet. Since the river offers no further draws and a 5-bet typically represents extremely strong holdings (e.g., nut flush or full house), this action almost never occurs in actual play and is mostly used for theoretical derivation or teaching examples.
Strategically, making a 5-bet on a monotone river indicates the player believes their hand is far superior to the opponent's range and that the opponent may hold a second-best hand (e.g., a smaller flush or straight). However, the risk is high because repeated raises expose hand strength and may cause the opponent to fold. In actual games, such extreme plays should be avoided unless there is a clear read.