Takodori's Entrance to Shogi World

5th(final) game of 20th Joryu Oui-sen best of five match

Today is the day for the 5th game of 20th Joryu Oui-sen best of five match between Joryu Oui Ishibashi Sachio and Challenger Joryu Meijin & Osho Shimizu Ichiyo. The score is tied 2-2 before the game.  The game started at 9:00am at Hotel Clement Tokushima in Tokushima prefecture.　Ishibashi  is Sente player for this game. You can watch and replay the game through the links below;

Official page in Japanese
Virtual Board

And frequently updating photos(almost a live) are available to look at.

The playing room(right=Ishibashi)
The board and piece stands from the ceiling

The allotted thinking time per player is 4 hours and each player will have make a move less than 60 seconds per move after consuming it.

My analysis if Sente took the Silver on 7i by Gx7i(3rd game of 22nd Ryuo-sen)

This is the duplication of my analysis if Sente took the Silver on 7i by Gx7i at the 96th move of 3rd game of 22nd Ryuo-sen yesterday responding to a question raised in 81-square universe.

It's natural to have such a qustion you raised. Here are the variation. In short, if Sente(Black) took the Silver on 7i, there woud have been no mate for Gote(White) and Sente would have had no defense. Here are some variations.

(1)S*7i Gx7i P*8g Kx8g Rx7i+

G*2b Rx2b Bx2b+ Kx2b S*3c K-1c Lx1e, P*1d, Then Black has no more effective check.

G*2b Rx2b Bx2b+ Kx2b R*4b P*3b S*3c K-1c Lx1e P*1d, Then Black has no more effective check

Addition

P*2c G*7f Sx7f +Rx7f K-9g +Rx8f K-9h +R-8h(mate)

P*2c G*7f K-9g N*8e Px8e Nx8e K-9h +Rx6h Sx6h G*8g(mate)

Correction

G*8h Rx8f Sx8f G*7f K-9g Gx8f Kx8f +Rx8h P*8g G*7f(mate)

G*8h Rx8f Sx8f G*7f K-9h +Rx8h Kx8h P*8g K-9h G*8h K-9g N-8e(mate)

G*8h Rx8f Kx8f +Rx8h Sx8h G*7f K-9g N-8e K-9h N*8f(mate)

S*7h G*8h Sx8h Rx8f Kx8f +Rx8h S-8g S*8e Kx7e G-7d(mate)

S*7h G*8h K-9g N*8e Px8e Nx8e K-8f Nx7g+ P*8e +N-7f K-9g S*8f(mate)

G*7h +Rx8i G-8h Rx8f Kx8f +Rx8h Sx8h G*7f K-9g N-8e K-9h N*8f K-8i G*7h Gx7h Nx7h+ Kx7h N*8f K-6h G*6g K-5i B-5h+(mate)

G*7h +Rx8i G-8h Rx8f Sx8f G*7f K-9g N*8e Sx8e Nx8e(mate)

Addition

G6h-7h Rx8f Kx8f N*7d K-8g P*8f Sx8f G*7f K-9h +Rx7h P*8h G*8g(mate)

G6h-7h Rx8f Sx8f G*7f K-9g N*8e Sx8e Nx8e K-9h +Rx7h P*8h G*8g(mate)

G6h-7h Rx8f K-9g G*8g Gx8g Rx8g+ Kx8g B-6i+ K-8f G*8e K-9g Gx9f K-9h +B-8g(mate)

(2)S*7i Gx7i P*8g K-9h Rx7i+

G*2b Rx2b Bx2b+ Kx2b S*3c K-1c Lx1e, P*1d, Then Black has no more effective check.

G*2b Rx2b Bx2b+ Kx2b R*4b P*3b S*3c K-1c Lx1e P*1d, Then Black has no more effective check.

G*7h +Rx6h Sx6h G*8h K-9g N*8e Px8e Nx8e K-8f G*7f(mate)

G*7h +Rx6h Sx6h G*8h Gx8h Kx8h Rx8f P*8g Rx8g+ Kx8g B-6i+ S*7h G*7f K-9h G*8g Sx8g +Bx8g(mate)

Correction

G*7h G*8h Sx8h Px8h+ Gx8h +Rx8h Kx8h Rx8f P*8g Rx8g+ Kx8g P*8f Kx8f G*7f K-9g N-8e K-8h P*8g K-7i S*8h K-7h N*8f(mate)

As you see above, Watanabe's S*7i was a very brilliant Silver sacrifice.

Boardlive today & tomorrow - 3rd game of 22nd Ryuo-sen best of seven match

Today and tomorrow are the days for the 3rd game of 22nd Ryuo-sen best of seven match between Ryuo Watanabe Akira and 9-dan Moriuchi Toshiyuki. The game started at 9:00 am at Shoseien of Higashi Honganji in Kyoto City.  Moriuchi is  Sente player.  Before the game, Watanabe leads the score in 2-0. You can replay and watch the game through the links below;

Official Page in Japanese
Official Blog in Japanese (full of photos and diagrams)
Kifu for Flash in Japanese
Kifu for Java in Japanese
Kifu for Flash in English(To be updated mainly for Day 2)

The allotted thinking time per player is 8 hours and less than 60 seconds per move after consuming it.

And gpsshogi_en and  bonanza_shogi which are computer shogi program are following this game to output their evaluation values and readings per every move.

Please refer to the game played between Matsuo Ayumu and Toyokawa Takahiro of September 25 2009. It's the same position at the 82nd move at the end of Day 1. Matsuo won that game. So where should Watanabe change the move draws poeple's attention.

Boardlive now - 4th game of 20th Joryu Oui-sen best of five match

Today is the day for the 4th game of 20th Joryu Oui-sen best of five match between Joryu Oui Ishibashi Sachio and Challenger Joryu Meijin & Osho Shimizu Ichiyo. The score is in 2-1 led by Shimizu before the game.  The game started at 9:00am at Itate Hyouzu Shrine in Hyogo Prefecture.　Ishibashi  is Sente player for this game. You can watch and replay the game through the links below;

Official page in Japanese
Virtual Board

And frequently updating photos(almost a live) are available to look at.

Joryu Oui Ishibashi, Defender
Joryu Meijin & Osho Shimizu, Challenger

The allotted thinking time per player is 4 hours and less than 60 seconds per move after consuming it.

Boardlive today & tomorrow - 2nd game of 22nd Ryuo-sen best of seven match

Today and tomorrow are the days for the 2nd game of 22nd Ryuo-sen best of seven match between Ryuo Watanabe Akira and 9-dan Moriuchi Toshiyuki. The game will start at 9:00 am at Hotel New Otani Takaoka in Toyama prefecture. Before the game, the score is 1-0 led by Watanabe. Watanabe will be Sente player. You can replay and watch the game through the links below;

Official Page in Japanese
Official Blog in Japanese (full of photos and diagrams)
Kifu for Flash in Japanese
Kifu for Java in Japanese
Kifu for Flash in English(To be updated mainly for Day 2)

The allotted thinking time per player is 8 hours and each player will have to make every move within 60 seconds after consumoing it.

And gpsshogi_en and bonanza_shogi, which are computer shogi programs,  will be following this game to output their evaluation values and readings per every move after they start following it.

Boardlive now - 3rd game of 20th Joryu Oui-sen best of five match

Today is the day for the 3rd game of 20th Joryu Oui-sen best of five match between Joryu Oui Ishibashi Sachio and Challenger Joryu Meijin & Osho Shimizu Ichiyo. The score is tied in 1-1 before the game. It draws people's attention if Ishibashi recovers from the loss of the second game due to her illegal move of Bishop which was the first time in the history of shogi title matches. The game started at 9:00am at Coal Mining Millionaire Ito Denemon's house in Fukuoka Prefecture which is famous for coal mining ealy in the 20th century. Shimizu is Sente player for this game. You can watch and replay the game through the links below;

Official page in Japanese
Virtual Board

And frequently updating photos(almost a live) are available to look at.

Joryu Oui Ishibashi, Defender
Joryu Meijin & Osho Shimizu, Challenger
Board from the ceiling

The allotted thinking time per player is 4 hours and less than 60 seconds per move after consuming it.

Boardlive today & tomorrow - 1st game of 22nd Ryuo-sen best of seven match

Today and tomorrow are the days for the 1st game of 22nd Ryuo-sen best of seven match between Ryuo Watanabe Akira and 9-dan Moriuchi Toshiyuki. The game started at 9:00 am at the hall of Hieizan Enryakuji. As a result of Furigoma, Moriuchi became Sente player. You can replay and watch the game through the links below;

Official Page in Japanese
Official Blog in Japanese (full of photos and diagrams)
Kifu for Flash in Japanese
Kifu for Java in Japanese
Kifu for Flash in English(To be updated mainly for Day 2)

The allotted thinking time per player is 8 hours and less than 60 seconds per move after consuming it.

And gpsshogi_en and bonanza_shogi which are computer shogi programs are following this game to output their evaluation values and readings per every move.

Boardlive now - 2nd game of 20th Joryu Oui-sen best of five match

Today is the day for the 2nd game of 20th Joryu Oui-sen best of five match between Joryu Oui Ishibashi Sachio and Challenger Joryu Meijin & Osho Shimizu Ichiyo. Ishibashi led the score in 1-0 before the game. The game started at 9:00am at Renaissance Sapporo Hotel in Hakkaido. Ishibashi is Sente player for this game. You can watch and replay the game through the links below;

Official page in Japanese
Virtual Board

And frequently updating photos are available to look at.

Joryu Oui Ishibashi, Defender
Joryu Meijin & Osho Shimizu, Challenger
Both players
Board from the ceiling

The allotted thinking time per player is 4 hours and less than 60 seconds per move after consuming it.

Boardlive today

Today is the day for the 1st game of 20th Joryu Oui-sen best of five match between Joryu Oui Ishibashi Sachio and Joryu Meijin Shimizu Ichiyo. The venue of the game is at Morikawa's House as the registered national tangible cultural property in Ichinomiya City, Aichi prefecture. As a result of Furigoma(five pawn toss), Shimizu became Sente. You can replay and watch the game through the following page.

Shimizu vs Ishibashi

The official page of the game can be found here(in Japanese).
And frequently updating photo of the playing room is here. (Left = Ishibashi).

The allotted thinking time per player is 4 hours and less than 60 seconds per move after consuming it.

Boardlive today - 40th King of Rookies-sen U-26 between Hirose and Nakamura

Today is the day for the first game of 40th King of Rookies-sen best of three match between Hirose Akihito(5 dan, 22 years old) and Nakamura Taichi(4 dan, 21 years old). The game will start at 10:00am. It's the first time that a King of Rookies-sen game is to be available to watch in the form of a boardlive. Here are the links.

Kifu for Flash
Kifu for Java

The official blog is in Japanese here. Both are professional players who are students of Waseda University. Nakamura is an AISEP member as well.

The King of Rookies-sen U-26(Shinjinoh-sen Under 26) is the tournament which is limited to the professional players who is under 5 dan and 26 years old, Shoreikai 3 dan players with good performance, and Joryu(Ladies) profesional players under 26 years old.