White Elo Black Elo ECO Year Res. #       Watanabe, Katsumi 1604 Ikogba, Kelvin B52 2021 ½-½ 66 Sugimoto, Koichi 2008 Watanabe, Katsumi 1604 D56 2021 1-0 45 Watanabe, Katsumi 1604 Sato, Yasuji 1498 C58 2021 ½-½ 59 Nishimori, Toshiyuki 1712 Watanabe, Katsumi 1604 C41 2021 ½-½ 44 Watanabe, Katsumi 1604 Yoshii, Yukihiko 1797 C59 2021 1-0 24 Page 1
Watanabe, Katsumi (1604) - Ikogba, Kelvin - Sapporo Hokkaido-ch (1), Sapporo, 2021 B52 1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Nxd7 5.O-O g6 6.d4 Bg7 7.c3 Ngf6 8.e5 dxe5 9.dxe5 Ng4 10.Re1 Ngxe5 11.Bf4 Nxf3+ 12.Qxf3 O-O 13.Nd2 Nf6 14.Qh3 Nh5 15.Be3 b6 16.Nf3 Qc7 17.Ng5 h6 18.Nf3 Kh7 19.g4 Nf4 20.Bxf4 Qxf4 21.Rxe7 Rfe8 22.Rxe8 Rxe8 23.Qg3 Qc4 24.h4 Re2 25.h5 Re4 26.hxg6+ fxg6 27.Nh2 Be5 28.Qg2 Bxh2+ 29.Kxh2 Qe6 30.Rg1 h5 31.Qh3 Qe5+ 32.Kh1 Qe6 33.f3 Re3 34.Rg3 Re2 35.gxh5 Qxh3+ 36.Rxh3 Rxb2 37.hxg6+ Kxg6 38.Rg3+ Kf5 39.Rg2 Rb5 40.Rg4 Ra5 41.Kg2 Rxa2+ 42.Kg3 a5 43.Rf4+ Ke5 44.Re4+ Kd5 45.c4+ Kd6 46.Kg4 a4 47.Kf5 Rh2 48.Re6+ Kd7 49.Rxb6 a3 50.Ra6 a2 51.f4 Rc2 52.Ra4 Rxc4 53.Rxa2 Kc6 54.Ke5 Rc1 55.f5 Rf1 56.Ke6 c4 57.f6 Re1+ 58.Kf7 Kc5 59.Kg8 Rg1+ 60.Kf8 c3 61.f7 Kd4 62.Ke7 Re1+ 63.Kd6 Rf1 64.Ke7 Re1+ 65.Kd6 Rf1 66.Ke7 ½-½	Search games Games: 10666599 / Last update: 30 Jul 2025 GamePositionEndgames White Black Ignore colours ECO Year Result All 1-0 0-1 ½-½ Event Site Click below to set up a position to search for Set position Click the button below to select an endgame type
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