About the Curling
Curling is sometimes called chess on ice. A heavy stone is slid down a long sheet towards a target of rings called the house, and the whole game is judging weight: how hard to push so that the stone stops exactly where you want it.
How it works
Your stone waits at the bottom. Move your finger or the pointer and a line shows the direction it will travel, within a narrow range either side of straight.
Press and hold, and the power bar fills and empties. Release to send the stone away. It slows at a steady rate and stops.
A stone resting on the outer blue ring scores one point. The white ring scores two, the red three, and the small centre circle five. A stone that stops short, or slides right through the house and out of the top, scores nothing.
You have four stones. They stay on the ice, and they can hit one another. A later stone can knock an earlier one further in, or out.
The power bar has a red mark on it. That is roughly the weight needed to reach the house, and a helpful place to start.
Scoring more
Use the first stone to learn the weight. Release at the red mark and watch where it stops. Then adjust.
A little less is safer than a little more. A stone that stops just short of the centre still scores. One that is too heavy slides through.
Think about your later stones. Once you have a stone in the red, a straight shot may hit it. Aim slightly to one side to sit alongside.
Or use it. A gentle tap on your own stone, from behind, can push it onto the centre.
The side walls are solid. A stone that touches one loses speed.
For touch and judgement, few sports HTML5 games ask as much with so few controls.