2014-new-york

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Table of Contents

2014–08–10a

2014–08–11a

2014–08–12a

2014–08–14a

2014–08–15a

2014–08–16a

2014–08–10a

White: Gabrielle Su 3d
Black: Anders
Komi: 7½ points
Date: 2014–08–10
Place: New York
Event: Go Congress
Round: 1

Comments based on analysis by Feng Yun 9p, as best I remembered them.

Moves 1–12

Move 13

White should play A first.

Move 14

At this point, White can tenuki. Doesn’t even have to respond if Black plays A.

Move 15

Move 16

This way, Black ends with sente.

Move 17

Move 18

Didn’t like the result after A, so played B. C would have been better.

Move 19

A is the wrong shape: after cutting, Black’s shape is much better. The correct shape is B.

Move 20

Moves 21–25

This would have been much better.

Move 26

Move 27

Not so good, better to play e.g. A. Corner is already safe, right side is currently open.

Move 28

White should cut at A instead.

Moves 29–32

Move 33

Leaning against this group that I wanted to attack was the wrong direction. Better to play either A or B, and aim at getting C later.

At some point, this cut might work.

Moves 34–37

Stone at A still has aji.

Moves 38–41

Black should play this exchange before it’s too late.

Moves 42–48

Probably better for White to play 1.

Move 49

Move 50

Moves 51–52

Move 53

Not a good exchange, might want to play A instead later on when I’m a bit stronger in this area.

Moves 54–56

Move 57

A would be better, or probe at B.

Moves 58–61

Move 62

Too aggressive, White should just draw back at A to get eye shape.

Moves 63–65

Move 66

White should push up at A; this move gives Black a chance to win.

Move 67

Did not see this move.

Problem solved.

Moves 68–73

Black needs to try to kill the white group to stay in the game; living is not enough.

Should probably just have connected? Still have A which either gives me a second eye or a cut.

Moves 74–77

Moves 78–86

Move 87

Trying to get back in the game by attacking the other white group, but would need to reinforce my connection around A first.

Moves 88–89

Move 90

Didn’t see this move coming.

Moves 91–94

Move 95

At this point, the game is over, don’t have enough liberties to start a capturing race.

Moves 96–100

Moves 101–122
122: connects

122 moves. Gabrielle Su wins by resignation.

2014–08–11a

White: Anders Kierulf 3d
Black: Cole Pruitt 2d
Komi: 7½ points
Date: 2014–08–11
Place: New York
Event: Go Congress
Round: 2

Comments in the opening based on analysis by Xie He 9p; later comments based on analysis by the players.

Moves 1–13

Move 14

This aims at a moyo-style game, losing out on territory. Playing A instead might be more appropriate.

Moves 15–21

This would also be fine.

Xie He thinks he would play here.

Move 22

Common sequence. Black would be fine: Black’s position at the bottom would inhibit White’s moyo at the top a bit.

This would be a good point, especially since the ladders in both directions work.

This move emphasizes the outside.

Black Is strong

No 3–3

Black has a number of options here.

White could attach here now, and get a wider extension than before thanks to the stone at A.

Move 23

The kosumi is more complicated than playing A. With large knights move, should play kosumi when willing to fight up with B; should play A if you like a more solid position.

Move 24

If you’re playing this, need to continue the attack at A.

Move 25

Move 26

Still some aji in the corner.

Move 27

Move 28

Black should push at A. B or C might be appropriate in similar positions when you can cut, but not here.

Move 29

Not good to allow White to push at A.

This would be a good direction for Black.

Not good due to the cut.

Move 30

Moves 31–36

Move 37

Remaining comments without professional analysis. Black should still push at A first.

Moves 38–50

Moves 51–73

Black says he should just have captured immediately; his move at A left too much aji behind.

Moves 74–76

Maybe better to secure some territory on this side?

Move 77

Probably better.

Moves 78–79

Moves 80–84

Move 85

Not sure how to answer this one. A feels too submissive, Black might get too much in the center, but the move I played didn’t work out that well.

Move 86

Moves 87–95

Maybe better?

Moves 96–99

Unclear.

Move 100

Moves 101–105

Move 106

If White can play some move around here in sente before pulling out the stone at A, that would be huge. But Black would probably just capture.

Move 107

Moves 108–117

Moves 118–123

Move 124

This seems wrong, should play A first. Black gets too many points along the left edge.

Moves 125–129

Move 130

Getting desperate, need more points.

Move 131

A would probably have worked for Black.

Moves 132–141

Move 142

Black should just connect at A.

Move 143

Moves 144–147

Move 148

At leats I got a ko out of it.

Moves 149–150

Moves 151–157

Moves 158–159

Move 160

Black is trying to make the ko bigger because he will win it.

Moves 161–171
164: ko; 167 at 161; 170: ko

Move 172

This is wrong, should connect at A. Losing these stones when Black wins the ko.

This would still be a game.

Moves 173–181

181 moves. Cole Pruitt wins by resignation.

2014–08–12a

White: Anders Kierulf 3d
Black: Melissa Zhang 2d
Komi: 7½ points
Date: 2014–08–12
Place: New York
Event: Go Congress
Round: 3

Comments based on game analysis by Mingming (Stephanie) Yin 1p.

Moves 1–16

This would be better, leaves fewer forcing moves for Black.

Move 17

Move 18

This area is too cramped. White should play either A or approach at B.

Moves 19–25

Move 26

Unusual, but might be okay.

Moves 27–38

Move 39

This is not good. At the very least, attach at A first, but B is best.

Black gets better shape this way.

Moves 40–43

Maybe better here to get out.

Moves 44–50

Move 51

This is an endgame move; White should just try to kill the group immediately. I thought about it for a while, but was too worried about e.g. Black playing at A.

Move 52

Hard for Black to survive.

Moves 53–65

Move 66

White should play A instead.

Black still has to defend here.

Game over.

Moves 67–68

This sequence might work. (Only amateur comments on rest of game.)

Moves 69–71

Move 72

This doesn’t work, misread.

This would be better than what happened in the game.

Moves 73–75

Move 76

Misread.

Moves 77–88

Move 89

At least I got a wall out of this attack, so now I can invade on the left.

Moves 90–100

Moves 101–128

This is probably better.

Moves 129–150

Move 151

One liberty short.

Moves 152–157

Move 158

Stopped recording here, close to byo-yomi. White got some points along the bottom, the black group in the lower left made two eyes, and the white group in the lower right was reduced to one eye. Luckily, the black group in the lower right corner also ended up with just one eye, and died due to lack of liberties.

158 moves. Anders Kierulf wins by resignation.

2014–08–14a

White: Abe Yokito 2d
Black: Anders Kierulf 3d
Komi: 7½ points
Date: 2014–08–14
Place: New York
Event: Go Congress
Round: 4

Comments based on game analysis by Xie He 9p.

Moves 1–5

Move 6

This move was new to me. Puts more emphasis on the corner than the Low Chinese at A.

Moves 7–9

I considered this one, but too early, need to focus on the sides first before the center.

Moves 10–11

The correct move would be to defend here after White sets up to attack the stone at A.

Moves 12–25

Move 26

This ended up working out well for Black, big reduction in sente.

Move 27

Black still has a big follow-up here.

Move 28

Move 29

Playing this move instead of entering the corner immediately basically adds the exchange of black 29 for white A, which is bad for Black.

Just entering the corner immediately would be correct.

Moves 30–31

Moves 32–34

Move 35

This could have turned out badly if White had played A.

Move 36

Black will get cut.

Moves 37–40

Move 41

This is the wrong idea, I’m too worried about White building a lot of territory here. For one thing, White already had points along the edge, so move 40 only increased the area by about 10 points, and there’s much more to be gained by building up my own moyo.

This would be a much easier game for Black to play.

Moves 42–50

Moves 51–62

Move 63

(Subsequent comments just the result of my own 3 dan thinking, no pro analysis.)

Maybe better to secure the bottom edge first by playing something like A.

Moves 64–78

Move 79

Thought I could cut here, but the right side is too weak to do that now.

Move 80

Move 81

This doesn’t work out well, as the black center group will get cut off if I continue to push along the edge.

Moves 82–89

Move 90

At the time, I expected White to play the ko, but probably correct that it would be too risky.

Moves 91–100

Moves 101–103

Black should play this move to strengthen the right side. I didn’t realize the trouble White could start there.

Moves 104–122

Move 123

I misread that I could connect underneath; doesn’t work due to the special properties of the corner.

Moves 124–128

Moves 129–147

Move 148

Misread. I thought that A would work, which is why I played B earlier.

Move 149

Move 150

Moves 151–169

169 moves. Anders Kierulf wins by 9½ points.

2014–08–15a

White: Brady Daniels 3d
Black: Anders Kierulf 3d
Komi: 7½ points
Date: 2014–08–15
Place: New York
Event: Go Congress
Round: 5

Comments based on game analysis by Xie Ho 9p and the players.

Moves 1–8

Move 9

Not so good, ends up in the wrong spot after White invades at 3–3. If want to play here, should kick at A first.

Normal.

Moves 10–13

Move 14

White should get out at A instead.

Better.

Move 15

Move 16

Better to connect at A.

Moves 17–19

Move 20

This is a good reduction before invading the corner. If played later, when Black is strong in the corner, Black might respond at A.

Moves 21–32

Move 33

Not urgent.

Black should push here first. Not that big in terms of points, but makes use of the stone at A to isolate the stone at B.

Move 34

This is good.

Moves 35–37

Move 38

Another good move by White. That area is more important than the lower right corner, which still has many options.

Moves 39–42

Moves 43–50

Moves 51–53

Move 54

Had just learned from a lecture by Feng Yun 9p last night that this corner is completely alive for Black. With the 3–3 invasion in the large knight’s move, Black can live in sente, so gets a move outside.

Xie He 9p went through a lot of variations on how to survive various atacks on the corner.

Move 55

Move 56

This move doesn’t kill Black, so it’s a gift. White should play the hane at A instead to reduce Black.

Moves 57–70

Move 71

Move 72

Brady played this move to gain sente, which the pro agreed with.

Moves 73–75

Move 76

However, this move was not the best use of sente. Better to play A and some other forcing move before playing B.

After this move, White would have some possibilities on the left.

This is what the pro recommends playing.

Moves 77–90

Move 91

(Subsequent comments not based on pro analysis.)

Maybe A would be better?

Move 92

Moves 93–98

Move 99

Should have played at A to get the center group completely out of trouble.

Move 100

Move 101

White didn’t realize that this move was sente against the corner.

Moves 102–114

Move 115

Ouch.

Moves 116–150

Moves 151–200

Moves 201–250
216: ko; 244: connects ko

Move 251

Move 252

Black wins. White was down to his last byo-yomi period for much of the endgame.

252 moves. Anders Kierulf wins.

2014–08–16a

White: Anders Kierulf 3d
Black: Dalan Robertson 4d
Komi: 7½ points
Date: 2014–08–16
Place: New York
Event: Go Congress
Round: 6

No game analysis on this one. Several points where Black may have been a bit too greedy.

Moves 1–50

Moves 51–100

Moves 101–133
111: connects

Move 134

I think I was lucky to be able to connect back out here without losing part of my group.

Moves 135–149

Move 150

Stopped recording here. The center Black group lived easily, but I managed to cut off and kill the large black group in the lower right.

150 moves. Anders Kierulf wins by resignation.