What Is Half Kill in Poker?

A half kill is a house rule that bumps the betting limits up by 50% for a single hand after a trigger is met — for example, when a pot reaches a set size or the same player wins two hands in a row. It is the milder version of the full kill, which doubles the limits instead. The player who caused the kill posts a half kill blind, and the stakes revert to normal afterward unless the kill triggers again.

Rooms reach for the half kill when a full double feels too swingy for the game’s player pool. The math is simple, but knowing exactly what changes keeps you from misplaying the killed hand.

What changes in a half-killed hand

When a half kill triggers, two things happen for the next hand:

1. The limits rise by 50%. A 10/20 limit game plays 15/30. A 20/40 game plays 30/60.
2. The triggering player posts a half kill blind equal to one and a half big blinds. In a 10/20 game the big blind is 10, so the half kill blind is 15.

That is the entire difference from a full kill: a full kill would make the same game 20/40 with a 20 kill blind, while the half kill makes it 15/30 with a 15 kill blind. The triggers are identical; only the size of the bump changes.

The half kill blind is live

Just like a straddle or a full kill blind, the half kill blind is a live blind. Two consequences follow:

• The posted chips count toward the killer’s wager for the round.
• The killer still gets to act in turn preflop, including the option to raise if the action limps around.

A kill button is usually placed in front of the player who owes the half kill blind so the dealer and table know who is posting and that the hand is killed.

A worked example

You are in a 10/20 limit hold’em game with a “half kill on a $200 pot” rule. Normal betting is 10 on the first two rounds and 20 on the last two; the small blind is 5 and the big blind is 10.

A big multiway hand builds a $210 pot — over the $200 threshold. The winner of that pot is now the killer, and the next hand is half-killed.

For that next hand:

• Limits rise to 15/30: betting is 15 preflop and on the flop, 30 on the turn and river.
• The killer posts a half kill blind of 15 (one and a half big blinds) in addition to being dealt in normally.
• Because the blind is live, if the action limps to the killer preflop, they can check or raise their option.

If the next pot again clears $200, the half kill continues. Otherwise the game reverts to 10/20 and the kill button comes off.

Half kill vs. full kill: a quick comparison

Feature	Half kill	Full kill
Limit increase	+50%	+100% (double)
10/20 becomes	15/30	20/40
Kill blind	1.5x big blind	2x big blind
Swinginess	Moderate	High
Blind is live?	Yes	Yes

Both use the same triggers (pot size or two wins in a row). The half kill simply produces smaller pots and gentler variance, which is why it is popular in mid-stakes limit games where a full double would drive casual players away.

Strategy notes

• Adjust ranges modestly. A 50% bump is smaller than a full double, so the tightening you need is real but mild. Marginal hands out of position get a little worse; do not overcorrect into playing scared.
• Use your live blind. You already have 15 in and you get to act. With a playable hand and a limped pot, raising your option is often the highest-EV line.
• Track the effective stakes. A 10/20 half-kill game is genuinely a 10/20-to-15/30 game. Bankroll for the killed limits, not the base limits.
• Know when it ends. The half kill lasts one hand unless re-triggered. Do not keep playing as if the stakes are still elevated once the button comes off.

Quick checklist

1. Confirm the posted trigger (pot size or two-in-a-row) and that it is a half — not full — kill.
2. Killed limits = base limits plus 50% (10/20 becomes 15/30).
3. Half kill blind = 1.5 big blinds, and it is live, so you keep your action.
4. Tighten ranges modestly for the higher effective stakes.
5. Expect stakes to revert after one hand unless the kill triggers again.

Grasp the half kill and you will handle the mid-hand stakes bump smoothly — and take full advantage of that live blind when it is your turn to post it.

Frequently asked

What is a half kill in poker?

A half kill is a house rule that raises the betting limits by 50% for one hand after a trigger, such as a pot reaching a set size or a player winning two hands in a row. It is the gentler cousin of the full kill, which doubles the limits. The triggering player posts a half kill blind of one and a half big blinds.

What is the difference between a half kill and a full kill?

A full kill doubles the betting limits and the kill blind, while a half kill raises them by only 50%. In a 10/20 game, a full kill plays 20/40 with a $20 kill blind, but a half kill plays 15/30 with a $15 kill blind. The triggers are identical; only the size of the increase differs.

Is the half kill blind a live blind?

Yes. Like a straddle or a full kill blind, the half kill blind is live. The chips count toward the poster's wager and they still get to act in turn preflop, including the option to raise if the action limps to them.