9x9=81 March 2002

51st Ohsho Match: Round 5

• March 4-5, 2002
• Ohsho (Ryuo, Oui, Ouza, Kiou) HABU Yoshiharu 1-0 9th dan SATO Yasumitsu
• Twisting Rook

1. P-2f P-8d 2. P-2e P-8e 3. G-7h G-3b 4. P-1f S-7b 5. S-3h P-8f 6. Px8f Rx8f 7. P*8g R-8b 8. P-1e S-8c 9. P-2d Px2d 10. Rx2d P*2c 11. R-2f S-7d 12. P-7f P-3d 13. R-3f G-3c 14. P-9f K-4a 15. K-4h K-3b 16. B-9g S-4b 17. P-7e S-8c 18. R-8f P-5d 19. S-6h B-3a 20. S-7g S-8d 21. R-6f G-5b 22. S-7f S-5c 23. S-6e P-6d 24. S-7f P-9d 25. B-8h P-7d 26. Px7d G-6c 27. P-8f Gx7d 28. R-2f P-4d 29. K-3i P-2d 30. N-7g N-7c 31. B-7i P*7e 32. S-8g K-4c 33. P-5f R-2b 34. P-3f G-2c 35. N-3g N-3c 36. G-4h P-6e 37. P-4f S-6d 38. G-4g B-5c 39. B-5g K-5b 40. R-2i K-6c 41. K-4h R-4b 42. P*2e Px2e 43. Nx2e Nx2e 44. Rx2e P*2d 45. R-2i N*3c 46. P-8e Nx8e 47. N*8f Nx7g+ 48. Gx7g G-7c 49. P*7d G-8c 50. R-6i P-4e 51. P-6f N*5e 52. Px5e Sx5e 53. N*6g B-2f 54. K-5h Sx6f 55. Gx6f Px6f 56. Bx6f Px4f 57. Nx7e K-5b 58. N-6c+ Kx6c 59. Bx3c+ P*6h 60. Rx6h P*6g 61. Rx6g K-7b 62. +Bx4b N*5e 63. R-6c+ Kx6c 64. N*7e 1-0

• 4. P-1f: This kind of moves are sometimes seen in professionals' games (e.g. 46th Ohsho match round 1). Book says P-1f or S-3h are better than P-9f, but the reason is too complicated to write down here (see 46th Ohsho match round 4, for example).
• 13. R-3f ... 18. R-8f: Twisting Rook. Cf. 51st Ohsho match round 2.

27th Kiou Match: Round 4

• March 8, 2002
• Kiou (Ryuo, Oui, Ouza, Ohsho) HABU Yoshiharu 1-0 9th dan SATO Yasumitsu
• Bishop Exchange Reclining Silver: Masuda System

1. P-7f P-8d 2. P-2f G-3b 3. G-7h P-8e 4. B-7g P-3d 5. S-8h Bx7g+ 6. Sx7g S-4b 7. S-3h S-7b 8. P-9f P-9d 9. P-4f P-6d 10. S-4g S-6c 11. K-6h P-1d 12. P-1f K-4a 13. G-5h S-5d 14. P-3f G-5b 15. N-3g P-4d 16. S-5f K-3a 17. K-7i P-7d 18. P-2e S-3c 19. P-6f N-7c 20. P-4e Px4e 21. P-3e S-4d 22. P-1e Px1e 23. P-7e Px7e 24. P-2d Px2d 25. Rx2d P*2c 26. R-2i G-6c 27. P*1b Lx1b 28. B*1a Sx3e 29. Sx4e B*2b 30. P*3c Gx3c 31. Bx2b+ Kx2b 32. Sx5d Px5d 33. N-4e G-3b 34. B*4a B*7d 35. R-2h R-4b 36. S*1a K-3a 37. Bx6c+ Bx6c 38. N-5c+ R-4i+ 39. K-8h P-7f 40. Sx7f B*5e 41. G-4h +R-5i 42. Rx2c+ Bx1a 43. G*4b Gx4b 44. +Nx4b Kx4b 45. G*5c K-5a 46. +Rx2a P*4a 47. N*4c K-6a 48. Gx6c 1-0

• 15. ... P-4d: Bishop Exchange Masuda System.
• 28. ... Sx3e: It is said B*2b is better.
• 29. ... B*2b: The combination of Sx3e and B*2b is new. Cf. 18th Kiou match round 1 (below).

18th Kiou Match: Round 1

(Feb. 6, 1993; Kisei Tanigawa1-0 Kiou Habu)

1. P-7f P-8d 2. P-2f G-3b 3. G-7h P-8e 4. B-7g P-3d 5. S-8h Bx7g+ 6. Sx7g S-4b 7. S-3h S-7b 8. P-4f P-6d 9. S-4g S-6c 10. P-6f P-4d 11. G-5h G-5b 12. K-6h K-4a 13. K-7i K-3a 14. P-9f P-1d 15. P-1f P-9d 16. P-3f S-5d 17. S-5f P-7d 18. N-3g N-7c 19. P-2e S-3c 20. P-4e Px4e 21. P-3e S-4d 22. P-1e Px1e 23. P-7e Px7e 24. P-2d Px2d 25. Rx2d P*2c 26. R-2i G-6c 27. P*1b Lx1b 28. B*1a Sx3e 29. Sx4e B*3h 30. R-2h B-4i+ 31. P*3c Nx3c 32. Sx3d +B-3i 33. R-1h K-4b 34. P*1c Lx1c 35. Sx3c+ Gx3c 36. N-2e G-2d 37. B-3c+ K-5b 38. Nx1c+ +B-2i 39. N*6g +Bx1h 40. Lx1h R*1i 41. L*5i P-8f 42. Sx8f P*8h 43. Kx8h Rx1h+ 44. P*2e L*8d 45. Px2d Lx8f 46. Px8f P*8g 47. Gx8g S*7f 48. Nx7e Sx8g+ 49. Kx8g P*8e 50. L*8c Px8f 51. Kx8f G-7d 52. B*4a 1-0

51st Ohsho Match: Round 6

• March 11-12, 2002
• 9th dan SATO Yasumitsu 1-0 Ohsho (Ryuo, Oui, Ouza, Kiou) HABU Yoshiharu
• White's Fourth-File Rook vs. Black's Static Rook Bear-in-the-Hole

1. P-7f P-3d 2. P-2f P-4d 3. P-2e B-3c 4. S-4h P-9d 5. P-9f S-3b 6. P-5f R-4b 7. K-6h S-7b 8. K-7h S-4c 9. G4i-5h K-6b 10. B-7g P-7d 11. P-6f P-4e 12. S-5g N-7c 13. B-8f G4a-5b 14. G-6g P-8d 15. K-8h S-8c 16. L-9h G-7b 17. K-9i K-7a 18. S-8h K-8b 19. P-3f S-5d 20. P-1f P-1d 21. G-7i R-4a 22. N-3g G5b-6b 23. R-4h B-4d 24. R-2h B-3c 25. G6g-6h P-6d 26. Bx6d P-8e 27. P-2d Px2d 28. P-4f Px4f 29. Bx4f P-8f 30. P*4e P*6e 31. Px8f Px6f 32. G7i-7h P-3e 33. Bx3e N-6e 34. S-4f P*3d 35. B-2f N-1c 36. P*6d P*8g 37. Gx8g P-2e 38. B-1g B-2d 39. P-3e P-1e 40. Nx2e Px1f 41. Nx1c+ Px1g+ 42. Rx2d B*4g 43. R-2b+ Bx5f+ 44. P-6c+ G6bx6c 45. B*3g K-8a 46. P*5g +B-4g 47. P*6d G6c-6b 48. +R-3b R-7a 49. P-9e Px9e 50. P*9d Lx1c 51. N*8e Sx9d 52. S-5e +Bx3g 53. Sx5d Px5d 54. S*7c S*6a 55. Sx6b+ Sx6b 56. G*7c S*6a 57. P-6c+ Sx6c 58. Gx6c Sx8e 59. P*6b Gx6c 60. Px6a+ R-7b 61. +Rx7b Kx7b 62. R*7a K-8b 63. S*8d 1-0

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