Corner Bet

A corner bet is a roulette inside wager covering four contiguous numbers that meet at one intersection on the betting layout. It is also called a square bet or four-number bet. A standard winning corner pays 8 to 1.

For example, a chip placed at the common point of 14, 15, 17, and 18 covers all four numbers. If any one wins, the casino pays eight units of profit and returns the original stake. Every other pocket loses the wager.

The chip position defines the four numbers

The four covered boxes must physically touch at one common corner. A chip resting on the wrong side of a line can describe a different wager, so placement is not cosmetic.

The neighboring wagers are explained in the split-bet, street-bet, and six-line entries. They use the same number grid but cover different combinations.

A $10 corner payout

Suppose $10 is placed on the corner covering 8, 9, 11, and 12.

• If 11 wins, the profit is $80.
• The original $10 stake is also returned.
• The total pushed back is therefore $90.
• If any other pocket wins, the $10 is lost.

“8 to 1” describes profit, not total return. Confusing those two amounts is a common payout-reading error.

Probability, true odds, and house edge

Let T be the number of pockets on the wheel. A corner always has four winning pockets, so:

The expected value of a one-unit corner wager paying 8 to 1 is:

On a double-zero wheel, T = 38:

The house edge is therefore 5.263% on the amount wagered.

The payout remains 8 to 1 while additional zero pockets increase the number of losing outcomes. This is why the wheel type matters more than choosing among ordinary inside bets that carry the same wheel-specific edge.

More numbers change hit frequency, not the price

A corner wins more often than a straight-up or split wager because it covers more pockets. It also pays less. On the same wheel, the ordinary payout schedule is designed so these standard inside bets have the same house edge.

That does not make their short-term behavior identical:

• A straight-up bet produces rare 35-to-1 wins and many losses.
• A split wins twice as often as a straight-up bet but pays 17 to 1.
• A corner wins on four pockets and pays 8 to 1.
• A six-line covers six pockets and pays 5 to 1.

The player is choosing a distribution of wins and losses, not buying a better expected return. The broader category is described in inside bets.

How many standard corners are on the 1–36 grid?

The main number grid has 12 rows and three columns. A four-number square can be formed between each pair of neighboring rows and each pair of neighboring columns:

Those 22 positions cover the ordinary squares inside the 1–36 grid. Special combinations involving zero use separate names and layout rules. The count also explains why an online interface may highlight many possible four-number groups while the physical chip positions remain precise.

Overlapping corners create more than one wager

Suppose a player stakes $5 on 8-9-11-12 and another $5 on 11-12-14-15. The total action is $10.

• If 11 or 12 wins, both corners win. Each earns $40 profit, for $80 total profit.
• If 8, 9, 14, or 15 wins, one corner earns $40 while the other loses $5, leaving $35 net profit.
• If any other pocket wins, both bets lose for a $10 loss.

Overlap changes the payout pattern but not the price per dollar. It also changes how often the player receives some return. In this example, six distinct numbers can produce a winning settlement, but 11 and 12 produce two wins at once. That larger apparent coverage can make the arrangement feel safer even though the player has doubled the stake from $5 to $10. Hit frequency, total amount returned, and expected loss should therefore be evaluated separately.

On a double-zero wheel, the expected loss on the $10 total action remains:

Players often describe several connected corners as “coverage,” but the casino sees separate wagers. Count every chip when estimating action and potential loss.

The official definition is layout-based

The active Massachusetts roulette rules define a four-number wager as four numbers in contiguous boxes, selected by placing the chip on their common corner, and list a minimum payout of 8 to 1. The definition is based on the printed layout—not on which pockets sit next to one another on the wheel.

This distinction matters when players see a visual square such as 14-15-17-18 and assume it forms a wheel sector. Those four numbers are separated around the wheel. The square is a betting-interface group, not a physical wheel neighborhood.

First four and first five are separate terms

On a single-zero layout, 0-1-2-3 may be offered as the first four or a four-number wager depending on the rules and felt. On a traditional double-zero layout, 0-00-1-2-3 is the first five or basket and normally pays 6 to 1. It is not an ordinary four-number corner.

Do not infer coverage from the chip’s visual closeness to zero. Read the table layout and posted paytable, especially on wheels with additional zero pockets or alternative betting areas.

Dealer reading and disputes

A crowded inside layout can contain many chips at adjacent intersections. Before “no more bets,” the dealer may clarify a poorly placed wager. After the result, the wager is settled by its established position, not by a player’s later description of intent.

A clean player routine is:

1. Identify the exact four numbers.
2. Place the chip squarely on their shared intersection.
3. Confirm the wheel has one, two, or three zero pockets.
4. Read 8 to 1 as profit plus return of the stake.
5. Evaluate total action if several corners are being played at once.

At tables using non-value roulette chips, color normally identifies ownership as well as amount. Two players may occupy nearby intersections with chips that look similar from across the table but are assigned to different people. Keeping stacks separated and confirming the dealer’s color assignment reduces disputes when several inside bets win at once.

Multiple corner bets do not merge into one lower-edge wager. Each chip creates its own action and expected loss. A corner is simply a compact four-number roulette bet with a clear placement rule, a standard payout, and a house edge determined by the wheel’s extra pockets.