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Player Profile

Player:

(Eg: Carlsen,Magnus)

Datu, Idelfonso



FIDE:	FIDE Card
Title:	IM
Years:	1987-2004
Number of games:	142
Number of wins:	52
Number of draws:	54
Number of losses:	36
White score:	40/68 (58.82% - Average Elo: 2403.12)
Black score:	39/74 (52.7% - Average Elo: 2390.38)

Rating progression

Games
White wins
White draws
White losses
Black wins
Black draws
Black losses

Top wins

Datu, Idelfonso (2443) - Yu, Shaoteng (2490), Asia Cities-ch 14th, Tagaytay City (E05) - 2004

Datu, Idelfonso (2381) - Juswanto, Denny (2487), Manila zt 3.2a, Manila (A25) - 2001

Datu, Idelfonso (2381) - Simutowe, Amon (2462), Goodricke op 12th, Kolkata (D78) - 2001

Wu, Wenjin (2601) - Datu, Idelfonso (2345), Olympiad-34, Istanbul (D36) - 2000

Shneider, Aleksandr (2570) - Datu, Idelfonso, World Cities, Jakarta (E97) - 1997

Saltaev, Mihail (2490) - Datu, Idelfonso, World Cities, Jakarta (C78) - 1997

Datu, Idelfonso - ? (64)

Garma, Chito (½/2)

Juswanto, Denny (1/2)

Torre, Eugenio (1/2)

Villamayor, Buenaventura (1/2)

Abriam, Luis (1/1)

Alidani, Leonardo (1/1)

Antonio, Rogelio Jr (0/1)

Badilles, Ponciano (0/1)

Bakri, Anas Nazreen (½/1)

Ballmann, Martin (½/1)

Beale, Richard (½/1)

Blatny, Pavel (0/1)

Cubas, Jose Fernando (1/1)

De Guzman, Ricardo (1/1)

Dhar Barua, Saheli (1/1)

Dolmatov, Sergey (0/1)

Donguines, Fernie (½/1)

Egorov, Evgeni (½/1)

Erkhembayar, Duurenbayar (1/1)

Frois, Antonio (½/1)

Gunawan, Johan (1/1)

Hernaez, Truman (½/1)

Huang, Justin (0/1)

Ibrayev, Nurlan (1/1)

Llavanes, Ronald (½/1)

Magem Badals, Jordi (½/1)

Malinao, Venerando (1/1)

Marco Polo, Rosete (½/1)

Markowski, Tomasz (½/1)

Martasyahbana, Ilham (½/1)

Martin, Benjamin (1/1)

Nguyen, Anh Dung (½/1)

Nguyen, Thanh Son (½/1)

Ni, Hua (0/1)

Olay, Edgar Reggie (1/1)

Oparaugo, Thomas (1/1)

Ortiz, Eduardo (0/1)

Ostenstad, Berge (0/1)

Pelletier, Yannick (½/1)

Petri, Peter (½/1)

Prihastomo, Iwan (1/1)

Rios Parra, Mauricio Flores (1/1)

Sasot, Allan (1/1)

Sayson, Alan (1/1)

Sengupta, Deep (1/1)

Sevillano, Enrico (½/1)

Simutowe, Amon (1/1)

Soppe, Guillermo (½/1)

Uteshev, Arsen (½/1)

Valerga, Diego (½/1)

Wahls, Matthias (0/1)

Watson, John L (1/1)

Wolff, Patrick G (0/1)

Wu, Shaobin (½/1)

Yu, Shaoteng (1/1)

Zjukin, Sergei (½/1)

? - Datu, Idelfonso (69)

Villamayor, Buenaventura (1½/3)

Antonio, Rogelio Jr (0/1)

Apurva, Abhyankar (1/1)

Asefi, Zaheeruddeen (1/1)

Bancod, Ronald (½/1)

Benjamin, Joel (½/1)

Biron, Roberto (1/1)

Bitoon, Richard (½/1)

Butt, Sabih Alam (0/1)

Colm, D (1/1)

Crispin, Thomas A (1/1)

Dableo, Ronald (0/1)

De Firmian, Nick E (0/1)

De la Cruz, Hernan (1/1)

De Souza, Mauro Guimaraes (½/1)

Deshmukh, Anup (½/1)

Ezeokoli, M (1/1)

Faraj, Yahya Saleh (1/1)

Gallagher, Joseph G (0/1)

Ghaem Maghami, Ehsan (0/1)

Gonzales, Jayson (½/1)

Guid, Matej (1/1)

Hossain, Enamul (½/1)

Hummel, Patrick (0/1)

Jiravorasuk, Banjuab (1/1)

Khamatgaleev, Alexej (1/1)

Kharlov, Andrei (0/1)

Kostenko, Petr (0/1)

Mallahi, Amir (1/1)

Mallari, W (0/1)

Marwan, Abdulwahab (0/1)

Mas, Hafizulhelmi (½/1)

Meijers, Viesturs (1/1)

Mikhalevski, Victor (0/1)

Motylev, Alexander (0/1)

Nay, Oo Kyaw Tun (½/1)

Nolte, Rolando (1/1)

Paciencia, Enrique Rivas (1/1)

Pacis, Adrian (½/1)

Paragua, Mark (0/1)

Puri, Vinny (0/1)

Ramirez Lopez, Carlos (1/1)

Reilly, Tim (0/1)

Reinderman, Dimitri (½/1)

Rodriguez, Ruben (0/1)

Sadikin The, Irwanto (1/1)

Sales, Jesse Noel (1/1)

Saltaev, Mihail (1/1)

Schiller, Eric Andrew (1/1)

Senador, Emmanuel (½/1)

Shneider, Aleksandr (1/1)

Sison, Edwin Sison (1/1)

Sitanggang, Salor (½/1)

Sorin, Ariel (0/1)

Torre, Eugenio (0/1)

Tu, Hoang Thai (½/1)

Tu, Hoang Thong (½/1)

Wang, Pin (0/1)

Wang, Zili (½/1)

Wee, Zhen Chian (½/1)

Wong, Zi Jing (1/1)

Wotulo, Max Arie (1/1)

Xu, Yaping (½/1)

Yu, Melvin (1/1)

Zhang, Pengxiang (0/1)

Openings played as White (38)

A07 King's Indian Attack (1.Nf3 d5 2.g3)
Average Elo: 2437
Result: 2½/7 = 35.71%

A05 Reti Opening (1.Nf3 Nf6)
Average Elo: 2463.75
Result: 4/6 = 66.67%

D02 Queen's Pawn Game (1.d4 d5 2.Nf3)
Average Elo: 2355.25
Result: 2½/4 = 62.5%

A04 Reti Opening (1.Nf3)
Average Elo: 2396
Result: 3/3 = 100%

E05 Catalan, Open, Classical line (1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 Be7)
Average Elo: 2408
Result: 2½/3 = 83.33%

D11 Queen's Gambit Declined Slav (1.d4 d5 2.c4 c6 3.Nf3)
Average Elo: 2462.67
Result: 2/3 = 66.67%

A08 King's Indian Attack (1.Nf3 d5 2.g3 c5 3.Bg2)
Average Elo: 0
Result: 2/2 = 100%

C00 French Defense (1.e4 e6)
Average Elo: 2462.5
Result: 0/2 = 0%

D00 Queen's Pawn Game (1.d4 d5)
Average Elo: 2083.5
Result: ½/2 = 25%

A39 English, Symmetrical, Main line with d4 (1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d4)
Average Elo: 2301
Result: 2/2 = 100%

E60 King's Indian Defense (1.d4 Nf6 2.c4 g6)
Average Elo: 2364.5
Result: ½/2 = 25%

E04 Catalan, Open, 5.Nf3 (1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3)
Average Elo: 2372.5
Result: 1½/2 = 75%

E62 King's Indian, Fianchetto (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3)
Average Elo: 2537.5
Result: 1/2 = 50%

D77 Neo-Grunfeld, 6.O-O (1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O)
Average Elo: 2568
Result: ½/2 = 25%

E69 King's Indian, Fianchetto, Classical Main line (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7 7.O-O e5 8.e4 c6 9.h3)
Average Elo: 0
Result: 1/2 = 50%

D78 Neo-Grunfeld, 6.O-O c6 (1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c6)
Average Elo: 2371
Result: 1½/2 = 75%

A34 English, Symmetrical (1.c4 c5 2.Nc3)
Average Elo: 0
Result: 0/1 = 0%

E18 Queen's Indian, Old Main line, 7.Nc3 (1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3)
Average Elo: 2290
Result: ½/1 = 50%

Uncommon Opening (1.g4, a3, h3, etc.)
Average Elo: 0
Result: ½/1 = 50%

D79 Neo-Grunfeld, 6.O-O, Main line (1.d4 Nf6 2.c4 g6 3.g3 d5 4.Bg2 Bg7 5.Nf3 O-O 6.O-O c6 7.cxd5 cxd5)
Average Elo: 2565
Result: 0/1 = 0%

B13 Caro-Kann, Exchange (1.e4 c6 2.d4 d5 3.exd5 cxd5)
Average Elo: 2445
Result: ½/1 = 50%

E68 King's Indian, Fianchetto, Classical Variation, 8.e4 (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 Nbd7 7.O-O e5 8.e4)
Average Elo: 2285
Result: 1/1 = 100%

A25 English (1.c4 e5 2.Nc3 Nc6)
Average Elo: 2487
Result: 1/1 = 100%

A88 Dutch, Leningrad, Main Variation with c6 (1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.O-O d6 7.Nc3 c6)
Average Elo: 2190
Result: 1/1 = 100%

E09 Catalan, Closed (1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2 c6 8.Nbd2)
Average Elo: 2556
Result: ½/1 = 50%

A45 Queen's Pawn Game (1.d4 Nf6)
Average Elo: 0
Result: ½/1 = 50%

D30 Queen's Gambit Declined (1.d4 d5 2.c4 e6)
Average Elo: 0
Result: ½/1 = 50%

E15 Queen's Indian (1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3)
Average Elo: 0
Result: 1/1 = 100%

A30 English, Symmetrical (1.c4 c5)
Average Elo: 0
Result: 1/1 = 100%

E17 Queen's Indian (1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7)
Average Elo: 2474
Result: ½/1 = 50%

A87 Dutch, Leningrad, Main Variation (1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3)
Average Elo: 0
Result: 1/1 = 100%

E65 King's Indian, Fianchetto, Yugoslav, 7.O-O (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c5 7.O-O)
Average Elo: 2141
Result: 1/1 = 100%

D34 Queen's Gambit Declined, Tarrasch (1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 Be7)
Average Elo: 2315
Result: ½/1 = 50%

A13 English (1.c4 e6)
Average Elo: 2471
Result: ½/1 = 50%

C69 Ruy Lopez, Exchange, Gligoric Variation, 6.d4 (1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dc 5.O-O f6 6.d4)
Average Elo: 2546
Result: ½/1 = 50%

A90 Dutch (1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2)
Average Elo: 0
Result: ½/1 = 50%

B26 Sicilian, Closed, 6.Be3 (1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Be3)
Average Elo: 2435
Result: 0/1 = 0%

A16 English (1.c4 Nf6 2.Nc3)
Average Elo: 2402
Result: ½/1 = 50%

Openings played as Black (49)

C78 Ruy Lopez (1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O)
Average Elo: 2369
Result: 2½/5 = 50%

C42 Petrov Defense (1.e4 e5 2.Nf3 Nf6)
Average Elo: 2510.33
Result: ½/4 = 12.5%

C68 Ruy Lopez, Exchange (1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6)
Average Elo: 2472.33
Result: 3½/4 = 87.5%

B01 Scandinavian (1.e4 d5)
Average Elo: 1935.5
Result: 2½/4 = 62.5%

B03 Alekhine's Defense (1.e4 Nf6 2.e5 Nd5 3.d4)
Average Elo: 2346
Result: 1/3 = 33.33%

D36 Queen's Gambit Declined, Exchange, Positional line, 6.Qc2 (1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 c6 6.Qc2)
Average Elo: 2580.5
Result: 2½/3 = 83.33%

D52 Queen's Gambit Declined (1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 c6 6.Nf3)
Average Elo: 2380.67
Result: 2/3 = 66.67%

C24 Bishop's Opening (1.e4 e5 2.Bc4 Nf6)
Average Elo: 2504
Result: 1/2 = 50%

B05 Alekhine's Defense, Modern (1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4)
Average Elo: 2339.5
Result: 1½/2 = 75%

E61 King's Indian (1.d4 Nf6 2.c4 g6 3.Nc3)
Average Elo: 2245
Result: 2/2 = 100%

E97 King's Indian (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6)
Average Elo: 2442.5
Result: 2/2 = 100%

C22 Center Game (1.e4 e5 2.d4 exd4 3.Qxd4 Nc6)
Average Elo: 2311
Result: 1½/2 = 75%

D46 Queen's Gambit Declined Semi-Slav (1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3)
Average Elo: 2314
Result: 1½/2 = 75%

D18 Queen's Gambit Declined Slav, Dutch (1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3)
Average Elo: 0
Result: ½/1 = 50%

D35 Queen's Gambit Declined (1.d4 d5 2.c4 e6 3.Nc3 Nf6)
Average Elo: 0
Result: 1/1 = 100%

D30 Queen's Gambit Declined (1.d4 d5 2.c4 e6)
Average Elo: 2285
Result: 0/1 = 0%

D13 Queen's Gambit Declined Slav, Exchange Variation (1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5)
Average Elo: 2235
Result: 0/1 = 0%

D65 Queen's Gambit Declined, Orthodox, Rubinstein Attack, Main line (1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 c6 8.Qc2 a6 9.cxd5)
Average Elo: 2345
Result: 0/1 = 0%

E73 King's Indian (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2)
Average Elo: 2420
Result: 0/1 = 0%

A11 English, Caro-Kann Defensive System (1.c4 c6)
Average Elo: 2280
Result: ½/1 = 50%

E66 King's Indian, Fianchetto, Yugoslav Panno (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c5 7.O-O Nc6 8.d5)
Average Elo: 0
Result: 1/1 = 100%

E62 King's Indian, Fianchetto (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3)
Average Elo: 0
Result: 1/1 = 100%

A49 King's Indian, Fianchetto without c4 (1.d4 Nf6 2.Nf3 g6 3.g3)
Average Elo: 2570
Result: 0/1 = 0%

A48 King's Indian (1.d4 Nf6 2.Nf3 g6)
Average Elo: 2280
Result: ½/1 = 50%

C66 Ruy Lopez (1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6)
Average Elo: 2405
Result: ½/1 = 50%

A08 King's Indian Attack (1.Nf3 d5 2.g3 c5 3.Bg2)
Average Elo: 2340
Result: ½/1 = 50%

A36 English (1.c4 c5 2.Nc3 Nc6 3.g3)
Average Elo: 0
Result: ½/1 = 50%

E84 King's Indian, Samisch, Panno Main line (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6 7.Nge2 a6 8.Qd2 Rb8)
Average Elo: 0
Result: 1/1 = 100%

C45 Scotch Game (1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4)
Average Elo: 2450
Result: 0/1 = 0%

E01 Catalan, Closed (1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2)
Average Elo: 2150
Result: 1/1 = 100%

C80 Ruy Lopez, Open (1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4)
Average Elo: 2595
Result: ½/1 = 50%

E99 King's Indian, Orthodox, Taimanov (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.f3 f5)
Average Elo: 2240
Result: 0/1 = 0%

E81 King's Indian, Samisch (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O)
Average Elo: 2525
Result: 0/1 = 0%

C55 Two Knights Defense (1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6)
Average Elo: 2314
Result: ½/1 = 50%

A18 English, Mikenas-Carls (1.c4 Nf6 2.Nc3 e6 3.e4)
Average Elo: 2639
Result: 0/1 = 0%

C49 Four Knights (1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4)
Average Elo: 2412
Result: 1/1 = 100%

D27 Queen's Gambit Accepted, Classical (1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6)
Average Elo: 2500
Result: 0/1 = 0%

A13 English (1.c4 e6)
Average Elo: 2396
Result: ½/1 = 50%

A14 English (1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 5.O-O)
Average Elo: 2328
Result: 1/1 = 100%

C77 Ruy Lopez (1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6)
Average Elo: 2410
Result: ½/1 = 50%

C47 Four Knights (1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6)
Average Elo: 2454
Result: 0/1 = 0%

D02 Queen's Pawn Game (1.d4 d5 2.Nf3)
Average Elo: 2422
Result: ½/1 = 50%

D48 Queen's Gambit Declined Semi-Slav, Meran (1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6)
Average Elo: 2589
Result: 0/1 = 0%

A37 English, Symmetrical (1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3)
Average Elo: 2456
Result: ½/1 = 50%

C56 Two Knights (1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Nxe4)
Average Elo: 2487
Result: 0/1 = 0%

E04 Catalan, Open, 5.Nf3 (1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3)
Average Elo: 2510
Result: ½/1 = 50%

C28 Vienna Game (1.e4 e5 2.Nc3 Nf6 3.Bc4 Nc6)
Average Elo: 2267
Result: 1/1 = 100%

C84 Ruy Lopez, Closed (1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7)
Average Elo: 2515
Result: ½/1 = 50%

A30 English, Symmetrical (1.c4 c5)
Average Elo: 2426
Result: 0/1 = 0%