American Go E-Journal » Pair Go

Congress Pair Go Sign-Up Opens

Sunday July 31, 2016

Among the most popular events at the US Go Congress now underway in Boston is the annual Pair Go tournament, featuringOLYMPUS DIGITAL CAMERA male and female pairs of players attired in their best outfits. The tournament winners go on to compete in the International Amateur Pair Go Championship in Japan over the first weekend in December. Table winners receive prizes, and there are some souvenirs provided by the Japan Pair Go Association. The tournament is unrated. Sign-up sheets are now available just outside the main playing area at the Congress (16 pairs have already signed up as of presstime). The tournament is Thursday night and TD Todd Heidenreich reminds strong player teams wishing to play for the chance to represent the United States at the tournament in Japan that there will be a play-in round for the top 8 eligible pairs in the Strong Players Room on Wednesday evening at 8pm. Heidenreich, who has been directing the Pair Go tournament for a dozen years, is looking to hand over the reins so anyone interested in finding out more about Pair Go and what’s involved in directing the tournament can contact him at todd@capitalgo.org or just stop by the E-Journal office at the Congress. “It’s a lot of fun!” Heidenreich promises.
- photo: at the 2015 Pair Go tournament; photo by Eric Jankowski

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Michael Redmond 9P on Pro Pair Go Tsumego 5 (Answer)

Saturday July 30, 2016

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Presented here is the answer to the 5th tsumego from Michael Redmond 9P’s coverage of the challenging tsumego problems featured at the 2016 pro pair go tournament.

The author of this tsumego is Ohashi Hirofumi 6P.

Michael adds some clarifications about the multiple correct variations for this problem:
Despite what I said in my comments about tsumego 3, in this 5th tsumego White has a number of choices for variations to get a direct ko. There are differences such as size of territory when White lives, and whether Black gets to play the outside connection in the process, which would be important in an actual game, but not in a tsumego. Such an abundance of correct variations is generally considered a flaw, but in my opinion the high level of difficulty and the beauty of some of the variations makes it a worthy tsumego anyway. I must add that all the choices are for White several moves into the correct answer, and since Black has only one correct sequence, by the strict rules of tsumego it is a valid problem.

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Michael Redmond 9P on Pro Pair Go Tsumego 5

Saturday July 30, 2016

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Presented here is the 5th tsumego from Michael Redmond 9P’s coverage of the challenging tsumego problems featured at the 2016 pro pair go tournament. Michael gives the detailed solution tomorrow.

The author of this tsumego is Ohashi Hirofumi 6P.

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Michael Redmond 9P on Pro Pair Go Tsumego 4 (Answer)

Friday July 29, 2016

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Presented here is the answer to the 4th tsumego from Michael Redmond 9P’s coverage of the challenging tsumego problems featured at the 2016 pro pair go tournament.

Michael mentions that the author of this tsumego, Oba Junya 7P, is well known for his pro level tsumego problems.

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Michael Redmond 9P on Pro Pair Go Tsumego 4

Thursday July 28, 2016

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Presented here is the 4th tsumego from Michael Redmond 9P’s coverage of the challenging tsumego problems featured at the 2016 pro pair go tournament. Michael gives the detailed solution tomorrow.

Michael mentions that the author of this tsumego, Oba Junya 7P, is well known for his pro level tsumego problems.

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Michael Redmond 9P on Pro Pair Go Tsumego 3 (Answer)

Wednesday July 27, 2016

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Presented here is the answer to the 3rd tsumego from Michael Redmond 9P’s coverage of the challenging tsumego problems featured at the 2016 pro pair go tournament.

The author of this tsumego is Kono Rin 9P. Michael explains what you may notice as a curious part of this position:

White’s 2 non-attached stones do not change the problem’s result, but have the effect of pruning one of two correct variations for Black at move 5 of the answer, and another alternative answer later in the correct sequence, thus limiting Black to only one variation throughout the entire correct answer. In tsumego, there must be only one correct first move, but serious tsumego composers will avoid variations later in the answer as well.

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Michael Redmond 9P on Pro Pair Go Tsumego 3

Tuesday July 26, 2016

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Presented here is the 3rd tsumego from Michael Redmond 9P’s coverage of the challenging tsumego problems featured at the 2016 pro pair go tournament. Michael gives the detailed solution tomorrow.

The author of this tsumego is Kono Rin 9P. Michael gives a solution hint for what you may notice as a curious part of this position:

White’s 2 non-attached stones do not change the problem’s result, but have the effect of pruning one of two correct variations for Black at move 5 of the answer, and another alternative answer later in the correct sequence, thus limiting Black to only one variation throughout the entire correct answer. In tsumego, there must be only one correct first move, but serious tsumego composers will avoid variations later in the answer as well.

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Michael Redmond 9P on Pro Pair Go Tsumego 2 (Answer)

Sunday July 24, 2016

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Michael Redmond 9P is graciously providing all E-Journal readers with a set of tsumego problems featured at the 2016 pro pair go tournament. Of course, these problems are quite tough, but nevertheless entertaining to everyone, especially because Michael will later provide each solution.

In this tsumego contest, each pair has up to 10 minutes to answer each problem, but only the first 5 pairs can answer. The race to answer first makes these problems highly challenging. After signalling having an answer, a pair must play each move within 5 seconds. The pair team plays Black’s moves, while the composer plays White’s, which allows the composers to show their favorite variation for White.

Michael gives the background for this tsumego from Oba Junya 7P, who is well known for his pro level tsumego problems:

This tsumego is not as difficult as it looks, as there is only one tesuji that jumps to mind for Black, and White 2 is forced, making the first 3 moves fairly easy to find. In fact, Ke Jie 9p slapped down the first 3 moves almost immediately. However, there is a very effective blind spot after that, which tripped some pros.

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Michael Redmond 9P on Pro Pair Go Tsumego 2

Thursday July 21, 2016

[link]

Michael Redmond 9P is graciously providing all E-Journal readers with a set of tsumego problems featured at the 2016 pro pair go tournament. Of course, these problems are quite tough, but nevertheless entertaining to everyone, especially because Michael will later provide each solution.

In this tsumego contest, each pair has up to 10 minutes to answer each problem, but only the first 5 pairs can answer. The race to answer first makes these problems highly challenging. After signalling having an answer, a pair must play each move within 5 seconds. The pair team plays Black’s moves, while the composer plays White’s, which allows the composers to show their favorite variation for White.

Michael mentions that the author of this tsumego, Oba Junya 7P, is well known for his pro level tsumego problems.

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Michael Redmond 9P on Pro Pair Go Tsumego 1 (Answer)

Wednesday July 20, 2016

[link]

Michael Redmond 9P is graciously providing all E-Journal readers with a set of tsumego problems featured at the 2016 pro pair go tournament. Of course, these problems are quite tough, but nevertheless entertaining to everyone, especially because Michael will later provide each solution.

In this tsumego contest, each pair has up to 10 minutes to answer each problem, but only the first 5 pairs can answer. The race to answer first makes these problems highly challenging. After signalling having an answer, a pair must play each move within 5 seconds. The pair team plays Black’s moves, while the composer plays White’s, which allows the composers to show their favorite variation for White.

Michael gives this interesting background for this tsumego from Ohashi Hirofumi 6P:

This problem is misleading, in that Black’s first and 3rd moves are relatively easy to find, while White 4 is counter-intuitive. Ohashi tells me that he saw surprise and maybe shock in the top Chinese pairs faces when he played move 4, but Ke Jie quicky recovered, flickering his fingers in a burst of concentration, and was in time to give the correct answer.

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