February 17
We're back at the curling venue for women's competition. Coming into the venue, we see this plaque:
Today we have four matches: United States vs Denmark, Italy vs Japan, Switzerland vs Korea and Canada vs Sweden. Coming into the matches, Sweden is 6-0, the USA, Switzerland and Korea are 4-2, Canada and Denmark are 3-3 and Italy and Japan are 1-5.
When we first attended curling during the Lillehammer Olympics in 1994, we thought that any shot close to the center of the bull's eye was a great shot. But a coach from the Norwegian team explained to us that curling is a little like chess. You have to think several shots ahead in order to tell whether a shot is good or not. With that in mind, I thought today that I would try to explain some curling strategy by following the second end between Canada and Sweden which is right in front of us. Before the start of the day's competition, each team throws one stone clockwise and one stone counter-clockwise and combines the two distances from their stones to the center of the bull's eye (called the button). Canada's total distance is 42.3cm while Sweden's total is 59.8cm so Canada gets the hammer (last throw) first. In the first end, neither team scores so Canada gets to keep the hammer in the second end. This means that Sweden goes first:
Canada also throws a guard. Now the right side of the house (the bull's eye) is guarded as well. It may be that the Canadians believe that Sweden's team is stronger at throwing stones with a counter-clockwise motion than a clockwise motion, so feel it is more important to protect the right side of the house. Note that there is just enough space to squeeze a stone between the two stones, but this would be a high-risk shot:
Sweden tries to throw a stone around the red guard, but the stone curls a little too much and they end up with the back stone kind of in the middle between the guards. Throwing a stone under a guard is a way to keep the stone from immediately being knocked out because you have to go around the guard to get to the stone in the house. In this case, they didn't quite "bury" it under the guard:
No, they decided to go ahead and get rid of the Canadian stone in the house. This time, they hit the Canadian stone head on so that the Swedish stone stayed right where it hit the Canadian stone instead of rolling in one direction or another:
Canada elects to tap the Swedish stone closest to the button toward the center to make it an easier shot to get rid of later and roll their stone into the lower part of the house. Again, this was not what they were trying to do. They were trying to bump the Swedish stone back and put their stone where the Swedish stone ended up. Another 0% success shot. Good teams will try to compensate for bad shots by having a secondary goal even if they fail on their primary goal. In this case, lower stones like this one come into play for a big score if they can get rid of all of the Swedish stones in the house:
Sweden tries to freeze to their own stone in the center. The idea of a freeze is that the closer you can get to a stone, if your stone is hit, all of the momentum is transferred to the other stone which causes it to fly off while your stone stays where it is. This means that it will be very hard for Canada to get rid of the higher of those two Swedish stones in the center of the house:
Canadian skip Rachel Homan makes a great draw around their guard at the top of the previous picture and puts their stone quite close to the button and partially under the two Swedish stones in the house. I missed the next picture, but Swedish skip Anna Hasselborg attempts to move the two Canadian stones off the button. Unfortunately, she hits the Canadian guard toward the top of the picture and her stone flies through the house between the button and the two stones in the house toward the bottom of the picture. This means that Canada lies two and have one stone left. They try to throw another draw to the button around the guard toward the top of the screen. This is a really tough shot, but if they see that the shot is offline, they can sweep or not sweep in such a way that it doesn't make their position any worse. As it turns off, they bang their shot off of the Canadian guard at the top of the picture and end up with 2 points. I hope that this gives you an idea of what is going on during a curling match.
























































