Kavouras: the European-only native layout

The Kavouras preset audited here is European-only. Its eight-unit layout combines one unit on the first four, two on the 31–36 six-line, and one on each of five splits. The exact wager list matters more than the name.

Place all eight units

The first-four bet returns nine units, the six-line returns twelve, and a winning split returns eighteen. Subtracting the entire eight-unit stake gives three different positive net amounts.

Every possible result

Four pockets, 0–3, earn one unit. Six pockets, 31–36, earn four units. The ten split pockets earn ten units. The remaining 17 pockets lose eight units. All 20 covered pockets profit, but they do not profit equally.

European expected net is (4×1+6×4+10×10−17×8)/37=−8/37 units. That is the ordinary 1/37 loss fraction on an eight-unit wager.

The first-four placement is a single-zero bet in the audited engine. Substituting an American first-five bet changes both coverage and payout. Simply adding 00 as a miss would not faithfully reproduce this preset, so the native catalog omits it for the American wheel.

Version the layout, not its reputation

A name can travel between guides with altered six-lines, splits or weights. This article describes the pinned development source's legal bets. It does not certify another Kavouras allocation or claim the strategy has a statistical advantage.

If you change one split, repeat the full pocket matrix and check that the wager remains legal. See inside bets for placement, coverage strategies for whole-layout accounting and wheel differences for the zero conventions.