Position and effective-stack drills

You have 180 chips behind. Bea has 45 and Cam has 260. Before anyone bets on the new street, your remaining effective stack is 45 against Bea and 180 against Cam. Naming just one depth would hide part of the hand. Start by naming the opponent.

Position needs the same care. You may act after Bea but before Cam, with different information available in each matchup. This lesson uses a fixed six-seat Hold’em deal to practice both comparisons. The desk shows the opening order and remaining stacks; you supply a clear moment in the hand.

Ace: “Bea has 45, so is everyone playing 45 deep?”

Victoria: “Compare us separately. My 180 can match Bea for 45, but it can match Cam for 180.”

Choose one moment in the hand

An effective-stack figure needs a time label. Starting stacks describe the beginning of the hand. Remaining stacks describe what is left at a later moment. Both can be useful, but mixing one player’s starting stack with another player’s turn stack produces a comparison that never existed.

The practice desk uses chips behind: chips still available in front of each player, excluding amounts already bet. Every stack entry must refer to the same moment. For the clearest first exercise, choose the start of a postflop street, before anyone makes a new wager.

Suppose you start with 100 and Bea starts with 70. You each contribute 10 before the flop. The starting effective stack was 70, while the flop begins with 90 and 60 behind. Your remaining depth against Bea is now 60. Neither answer is wrong when its time label is attached.

Now pause halfway through an action. You have 90 behind and Bea has 60 before betting. Bea puts out 20, leaving 40 behind. The smaller displayed stack is now 40, but calling Bea still costs 20. The desk has no current-wager field, so its stack comparison cannot supply that call price.

Keep the 20 wager and Bea’s 40 behind in separate notes. If you call the 20, your remaining stacks become 70 and 40, and the comparison is again easy to read at the next decision boundary. Recording both the action and the stacks prevents a number from changing meaning halfway through your review.

A useful note is “turn begins: 60 behind against Bea.” If the hand history does not show Bea’s stack, mark it unknown in your notes. The desk requires a number, so wait until you can establish one instead of turning a guess into a precise-looking answer.

Compare two stacks at a time

With no outstanding wager at the start of a street, compare your remaining stack with one opponent’s. The smaller number is the remaining amount each can contribute to that matchup. Against Bea’s 45, your 180 produces a depth of 45. The other 135 in your stack cannot be matched by Bea alone.

Against Cam’s 260, your 180 is the smaller stack. Here you set the ceiling, and Cam has 80 beyond what you can match from your remaining chips. Swapping the names does not change the answer: 180 against 260 and 260 against 180 both give a remaining pairwise depth of 180.

Equal stacks need no special rule. At 180 against 180, both players can contribute the same remaining amount. If one player has zero behind, the remaining comparison is zero. That player may still have a live hand and chips already in a pot; zero describes future stack capacity.

An unmatched amount is not extra money the shorter player can win simply by being all-in. In a two-player contest that starts with 180 and 45 behind, Bea cannot match all 180 from her remaining 45. Keep any matched wager, unmatched excess and existing pot separate when recording the hand.

The comparison does not choose a bet size. It contains no cards, opponent ranges, pot size or current price. Knowing that 45 can be matched tells you the size of the remaining contest. Deciding whether to commit it requires the rest of the hand.

Keep every live matchup in a multiway pot

Return to you with 180, Bea with 45 and Cam with 260 at the start of a street. Write two lines: 45 against Bea and 180 against Cam. The shortest stack limits the first matchup. It does not remove the larger amount that you and Cam can still contest.

Do not add those two depths and call the result your available stack. The 45 and 180 comparisons both use your same 180 chips. They describe different opponents, not separate allowances you can spend. Your total contribution is still limited by the chips actually in front of you.

To see how the relationships change, suppose all three players contribute another 30 and remain in the hand. The remaining stacks become 150, 15 and 230. Your new pairwise depths are 15 against Bea and 150 against Cam. The earlier 45 and 180 figures belong to the earlier snapshot.

If Bea later becomes all-in, keep Bea on the live-seat list with zero behind. Your remaining depth against Bea becomes zero, but Bea still has a hand that may win an eligible pot. You and Cam can have chips available for further betting; the desk does not calculate who is eligible for each existing pot.

A fold changes a different fact. Remove a folded player from the live-seat list even if that player still has a large stack. Their earlier contributions may remain in the pot, but their remaining stack no longer belongs in your live matchups. Entering zero would incorrectly describe them as live and all-in.

At the start of a fresh postflop street, there is no new betting round if fewer than two live players have chips behind. A lone player with chips cannot start a fresh contest against opponents who are already all-in. The desk reports this boundary even though those opponents remain in its pairwise list.

This fresh-street boundary does not settle an outstanding preflop call. A player can face a wager already made by someone who is now all-in. Reconstruct that action separately. A count of positive remaining stacks cannot tell you whether a prior wager still needs a response.

Use one unit for stacks and blinds

To describe a remaining stack in big blinds, divide it by the big blind. At a two-chip big blind, a depth of 45 chips is 22.5 big blinds. At a five-chip big blind, it is 9 big blinds. The chips have not changed; the unit used to describe them has.

If the stacks are entered in dollars, enter the blind in dollars too. A stack of 18 and a blind of 0.20 give 90 big blinds. Entering that blind as 20 while leaving the stack at 18 would give 0.9, a hundredfold unit error that ordinary division cannot detect.

The desk accepts stack amounts from zero through 1,000,000 and a big blind above zero through 1,000,000, with up to two decimal places. Enter plain numbers without currency signs or thousands separators. A comma separates one seat’s stack from the next.

Chip amounts remain exact to the entered hundredths. Big-blind descriptions are rounded to three decimal places; a very small positive ratio uses scientific notation instead of appearing as zero. If your original stack count was an estimate, extra display digits do not make it an exact observation.

Antes are not part of this conversion, and the desk does not interpret a straddle. It divides by the number labeled big blind. If you review a game with a different opening structure, record that structure separately rather than quietly changing what the denominator means.

A blind level can also change the description between hands. If a 900-chip stack carries into a new hand at blinds of 50/100, it represents 9 big blinds. At the previous big blind of 50 it represented 18. Use the level that actually applied to the hand you are reviewing.

Ace: “Seat 5 has the bigger stack. Does that put us last?”

Victoria: “Follow the seats. With 3, 5 and 6 still able to act, we act after 3 and before 6.”

Keep the six-seat map fixed

The exercise starts with six occupied seats dealt into an ordinary Hold’em hand. Seat 1 has the dealer button, seat 2 posts the small blind and seat 3 posts the big blind. Seats 4, 5 and 6 continue clockwise. The button stays at seat 1 throughout this snapshot.

Preflop opening order is 4, 5, 6, 1, 2, 3. Postflop opening order is 2, 3, 4, 5, 6, 1. These lists follow ordinary Hold’em action around the button and blinds. The desk filters them by who remains live and who still has chips behind.

Filtering leaves the remaining seats in the same order. With only seats 1, 3 and 5 live and holding chips, the preflop precedence is 5, 1, 3; the postflop precedence is 3, 5, 1. Folded seats disappear from the list. They do not cause the button or blinds to move.

If only seats 1 and 3 remain from this deal, seat 1 is still the original button and seat 3 the original big blind. The postflop order is 3 then 1. Do not reassign the small blind during the hand as though a new two-player game had just begun.

The desk’s preflop list is a filtered seat map, not a replay of how the folds occurred. Some players may already have acted to create your selected live-seat list. Their position in the map cannot tell you whether they owe another action now.

After a bet or raise, the next player and the eventual return of action depend on the actual betting history. The desk has no wager totals, calls or reopening inputs. Use its order to understand the seats, then follow the recorded action to work out the next decision.

Stack size also does not establish the largest legal raise in a pot-limit game. For that separate calculation, use the pot-limit maximum raise lesson. The seat map and stack comparisons supply context; the wager history supplies the betting calculation.

Describe position against each opponent

On a fresh postflop street, a live button player with chips acts after the other players who can act. If the button has folded, someone else is last among the remaining seats. The marker stays in place, but its holder has no decision left in this hand.

Take seats 3, 5 and 6, all live with chips behind. Postflop opening order is 3, 5, 6. As seat 5, you act after seat 3 and before seat 6. You have position on one opponent and are out of position against the other. A single label would lose half that information.

Suppose seat 3 checks. You now know about that check when your first decision arrives; seat 6 has yet to act. If you check too, seat 6 acts with both checks visible. This order provides information about actions already taken, without revealing either opponent’s private cards or future response.

Make seat 3 all-in with zero behind. It remains a live opponent but leaves the opening order, which becomes 5, 6. You act first among the two players with chips. Seat 3’s hand may matter at showdown, but it supplies no new betting decision on this street.

Now let seat 6 fold instead, leaving seats 3 and 5 with chips. The order becomes 3, 5, so you act last. Your physical seat has not moved. Changing who remains in the hand changes your relative position.

Initiative is a separate description. A player who raised preflop can still be first to act on the flop. For example, if seat 3 raised and seat 1 called, the flop opens with seat 3. The previous raise belongs in the action history; it does not move that player behind the button.

If your own stack is zero, the desk reports that you have no opening action. It can still show pairwise remaining depths of zero against other live seats. Treat those as stack facts, not a positional advantage you can use to make another bet.

Run the seat-and-stack exercise

Start with your seat set to 5, all six seats live, and remaining stacks of 120, 80, 45, 200, 180 and 260 in seat order. Set the big blind to 2 and choose postflop. Write down your expected opponents and order before pressing Check the snapshot.

Your 180 gives pairwise depths of 120 against seat 1, 80 against seat 2, 45 against seat 3, 180 against seat 4 and 180 against seat 6. In big blinds those are 60, 40, 22.5, 90 and 90. Each result uses your same stack and a different opponent.

The opening order is 2, 3, 4, 5, 6, 1. Seats 2, 3 and 4 act before you; seats 6 and 1 act after you. Switching to preflop changes the order to 4, 5, 6, 1, 2, 3. Your stack comparisons stay the same because you have changed only the street selection.

Next, keep only seats 3, 5 and 6 live. The postflop order becomes 3, 5, 6, and your pairwise depths are 45 and 180. Change the folded seat 2’s stack from 80 to 900. Neither live matchup should change. That is a quick check that you are using the live-seat list correctly.

Restore seat 2 to 80, then set live seat 3’s stack to zero. Your comparison against seat 3 becomes zero, while seat 6 remains 180. Opening order becomes 5, 6. The all-in player stays in the hand list and disappears only from the action list.

Set seat 6 to zero as well. Seats 3, 5 and 6 are still live, but only seat 5 has chips behind. On a fresh postflop street the result should say that no new betting round can open. If you also set your own stack to zero, every live player is all-in and the action list is empty.

Ace: “Seat 3 has zero left. Should I delete that seat?”

Victoria: “Keep the live hand. Remove it from the action order, and write zero as its remaining stack.”

Reset example restores the original six-seat values. Editing any field clears the old receipt, so submit again after making a change. The tool requires at least two distinct live seats, including your chosen seat, and six stack entries even when some seats have folded.

Keep six stack entries because their positions identify the seats. If only seats 3, 5 and 6 remain, entering just 45,180,260 would lose the original mapping. Leave the full six-value list in place and change the live-seat field to 3,5,6.

Finish with a review note someone else can check: “Start of the turn; seat 5 has 180 behind; seat 3 has 45 and seat 6 has 260; opening order is 3, 5, 6.” Add the big blind of 2 and you can recover both the 22.5-big-blind matchup and the 90-big-blind matchup.

Keep these drills for study and hand review. Further lessons are in Info & Tools. When you return to a full hand history, carry over the time label, live seats and remaining stacks, then add the actual bets and calls before discussing a decision.

↑ Back to top