Mirror systemOne-cushion bricole — mirror image and unequal halves

Cushion orderLDifficulty FREE🖨 Drill cards ✓ Exam on this system PRO 📐 Measure on your table PRO

ScalesReference linePath

Reference positionD1: distance of the cue ball from the mirror line 2D2: distance of the ghost ball from the mirror line 2Start: position of the cue ball along the cushion 6Arrival: position of the ghost ball along the cushion 2Aim 4

Spinside 0 · center

1/1

Ball fraction1/1

SpeedNot specified

⧉ Project on table ▭ Show on wall

Start 6, Arrival 2, D1 = D2 = 2 → Aim = 6 + (2 − 6) × 2 ÷ 4 = 4. The aim is exactly midway between the two positions.

The cue ball goes first to a cushion and then to ball 2. You aim at the mirror image of the target beyond the cushion; this way the angle at which the ball comes into the cushion and the angle at which it leaves it are equal. The same aim point can also be found by calculation: the distance between the two balls along the cushion is divided in the ratio of their distances from the cushion.

When? When ball 2 is to be made with a one-cushion bricole: when ball 2 is close to the cushion or blocked, or when there is a danger of a kiss on a direct shot. The cue ball and the target are in front of the same cushion.

✓ 6/6 examples verified by the formula

Calculate

Aim = Start + (Arrival − Start) × D1 ÷ (D1 + D2)

Start: position of the cue ball along the cushion

D1: distance of the cue ball from the mirror line

Arrival: position of the ghost ball along the cushion

D2: distance of the ghost ball from the mirror line

Slow, rolling ball (shallow angle)

Aim4

Basis: the interval is divided in the ratio D1 : D24
Aim4

✓ Example: Reference position: equal distance

Voice coach

PRO

The voice coach is part of the Pro and Club plans.

See plans

Watch outSide spin changes the rebound angle noticeably; the system is for shots without spin.

Watch outThe mirror rule only tells you how to reach ball 2. For the cushions after ball 2 and for ball 3, the ball fraction and the spin must be chosen separately.