From: Pieter Stouten EMBL BITNET> Date: 13 nov 1990 Subject: Ryu O Title Match. Complete third game. Below is the complete third game of the Ryu O title match, played on 8 and 9 November between Tanigawa Koji (challenger) and Habu Yoshiharu (Ryu O). The comment is by Katsuhiko Murooka, 5-dan professional. The first part of game 3 was already posted before. Pieter Stouten embl bitnet> embl-heidelberg de> ----------------------------------------------------------------------- Ryu O Title Match 1990, Game 3: Tanigawa Koji - Habu Yoshiharu. 1.P7f P8d 2.P2f P8e 3.B7g P3d 4.S8h G3b 5.G7h Bx7g+ 6.Sx7g S4b 7.S3h S7b 8.P4f P6d 9.S4g S6c 10.G5h G5b 11.K6h K4a 12.S5f S5d 13.P6f P4d 14.P3f P7d 15.K7i K3a 16.N3g P1d 17.P1f G5b-4c 18.K8h P9d 19.P9f S3c 20.R4h K2b 21.P4e Alternatives: --21.B'2h!? S4b 22.P6e Sx6e 23.Sx6e Px6e 24.P4e S'2g 25.Px4d G4c-3c 26.N2e Sx2h= 27.Nx3c+ Nx3c 28.S'4c P'4e 29.Sx3b+ Kx3b 30.P3e S3g+ 31.R4i N'8f (slight advantage white), Maruta - Nakahara 0-1, 1986. --21.L1h!? G4c-4b 22.B'1i!? B'2g 23.G4g P1e 24.N2e Px1f 25.P4e P1g+ 26.Bx6d R9b 27.Nx3c+ Kx3c 28.Px4d Bx1h+ 29.P'1b Lx1b 30.Rx1h+ +Px1h 31.B'1a (slight advantage black, but what if 21... K3a!), Tanigawa - Nakahara 1-0, 1986. 21... Px4e 22.B'4a S4d 22... B'9b? 23.Sx4e Sx4e 24.Nx4e S4d 25.B6c+ and black stands better, after 22... R7b black would have the better position, too. 22... P1e!? 23.Px7e P6e 24.Px6e P4f 25.B1d+ R6b is unclear. Maybe white stands a bit better, Tanigawa - T. Tanaka 1-0, exhibition game 1986. 22... P7e!? 23.B7d+ Px7f 24.Sx7f P6e 25.P1e Px1e 26.+B6d P'7c 27.P'1c and black stands slightly better, Morishita - Oshima 1-0, 1990. 23.Bx7d+ P3e 24.+Bx6d B'7c 25.+Bx7c Nx7c 26.B'6d R8c (26... R7b ?!) 27.Sx4e If 27.Nx4e then 27... P'4f 28.Bx4f P4e 29.Px9e S5dx4e 30.Sx4e. White stands slightly better, Maruyama - Senzaki 0-1, 1990. 27... S5dx4e 28.Nx4e P8f 29.Px8f adjourned My opinion of the adjourned position is that black stands a bit better, but probably Habu has prepared something new for this game, because if he picked out this system for white, the adjourned position could hardly be avoided. 29... P'4g 30.Rx4g B'3h 31.R4h B7d+ 32.S'5e! S'5d! 33.Sx4d +Bx6d 34.Nx5c+ Gx4d 35.Rx4d +Bx5c 36.R4a+ S'6i 37.G5h-6h Sx7h+ 38.Gx7h N'8e 39.G'8g?! With 39.G'8g black loses his advantage. 39.S'8g would have been better. According to Kato Hifumi on the television program "Go & Shogi Weekly" after 32.G'8g white stands a bit better. 39...G'3a 40.+Rx9a Nx7g+ 41.G8gx7g S'6i 42.S'8g N6e! 43.Px6e Sx7h+ 44.Kx7h If 44.Sx7h then 44...G'6h which is good for white, or if 44.Gx7h?? then 44... B'5e and white will win. 44... +B4d (Sx6e!? is possible, too) 45.L'4i Allowing 45... R4c would be decisive. 45... +B5e 46.+Rx9d R6c 47.S'5f Rx6e 48.P'6g! P'6f 49.Px6f Rx6f 50.Sx5e G'6h 51.K8h B'7i 52.K9h P'9g 53.Nx9g Sx5e 54.S'8i R6g+?? 54... G6g 55.Gx6f Sx6f 56.B'4d S'3c 57.Bx6f Gx6f. This position is unclear, but I would prefer to play the white side after 54... G6g. 55.Gx6g Gx6g 56.R'6a S'7h 57.Rx3a+ Kx3a 57... Gx3a 58.N'3d and now 58... K1c 59.N'2e K2d 60.N4b+ G'4d 61.+Rx4d Sx4d 62.G'3d leads to mate, or 58... K1b 59.G'2b K1c 60.N'2e K2d 61.B'5a G'3c 62.Gx2c Kx2c 63.Nx3c+ Nx3c 64.Bx3c+ Kx3c 65.+R8c and mate follows soon, too. 58.B'5c K2b 59.N'3d Resigns. 59... K1c 60.N'2e K1b 61.G'2b Gx2b 62.Nx2b+ Kx2b 63.+R9b and black wins. Tanigawa now leads with 3-0. Katsuhiko Murooka, Tokyo, Japan.