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Player Profile

Player:

(Eg: Carlsen,Magnus)

Bosma, Achim



FIDE:	FIDE Card
Years:	1977-2004
Number of games:	61
Number of wins:	30
Number of draws:	10
Number of losses:	21
White score:	22/33 (66.67% - Average Elo: 1799.56)
Black score:	13/28 (46.43% - Average Elo: 1880)

Rating progression

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

Top wins

Bosma, Achim (1869) - Friese, Peter (2049), Koblenz-ch, Koblenz (D05) - 2000

Bosma, Achim (1880) - Hardt, Bernd (1932), Koblenz-ch, Koblenz (E92) - 1997

Bosma, Achim (1880) - Moors, Marco (1775), Koblenz-ch, Koblenz (D04) - 1999

Drahtschmidt, Peter (2049) - Bosma, Achim (1880), Koblenz-ch, Koblenz () - 1997

Fink, Horst (1968) - Bosma, Achim (1869), Koblenz-ch, Koblenz (A03) - 2000

Saam, Armin (1809) - Bosma, Achim (1880), Koblenz-ch, Koblenz (E48) - 1997

Bosma, Achim - ? (29)

Baumann, Bettina (1/1)

Herrmann, Guido (1/1)

Jazayeri, Pouyan (½/1)

Kertesz, Alfred (0/1)

Kober, Jan (1/1)

Kunze, Christian (1/1)

Maslov, Vjacheslav (1/1)

Matriciani, Ruediger (½/1)

Mechenich (1/1)

Nebe, Lutz (1/1)

Niermann, Rainer (0/1)

Petersen, Kay (1/1)

Rosenberger, Frank (½/1)

Roth, Joerg (1/1)

Sefeloge, Michael (1/1)

Senger, Alexander (1/1)

Sorensen, Henrik (½/1)

Thieme Garmann, Alexander (0/1)

Waclawski, Klaus (1/1)

Wakker, Peter (1/1)

? - Bosma, Achim (26)

Graw, Rolf (1/2)

Schnur, Edmund (½/2)

Daumen, Michael (0/1)

Decrouppe, Johann (1/1)

Drahtschmidt, Peter (1/1)

Fink, Christian (0/1)

Fink, Horst (1/1)

Forster, Manfred (1/1)

Jazayeri, Pouyan (½/1)

Joel, Egbert (½/1)

Kueppers, Thorsten (1/1)

Landsrath, Mario (1/1)

Melnikov, Alexander (0/1)

Schaefer, Friedhelm (½/1)

Scheffler, Siegfried (1/1)

Schenderowitsch, Michael (½/1)

Schulz, Klaus Juergen (0/1)

Stuerken, Eibe (½/1)

Van der Sterren, Paul (0/1)

Waclawski, Klaus (0/1)

Openings played as White (25)

D04 Queen's Pawn Game (1.d4 d5 2.Nf3 Nf6 3.e3)
Average Elo: 1757.5
Result: 3/4 = 75%

D05 Queen's Pawn Game (1.d4 d5 2.Nf3 Nf6 3.e3 e6)
Average Elo: 1796.5
Result: 2/2 = 100%

A56 Benoni Defense (1.d4 Nf6 2.c4 c5)
Average Elo: 2183
Result: 0/2 = 0%

D35 Queen's Gambit Declined (1.d4 d5 2.c4 e6 3.Nc3 Nf6)
Average Elo: 1912
Result: 1½/2 = 75%

Uncommon Opening (1.g4, a3, h3, etc.)
Average Elo: 1943.5
Result: 1/2 = 50%

A57 Benko Gambit (1.d4 Nf6 2.c4 c5 3.d5 b5)
Average Elo: 0
Result: 1/2 = 50%

D02 Queen's Pawn Game (1.d4 d5 2.Nf3)
Average Elo: 1618
Result: 1/1 = 100%

A48 King's Indian (1.d4 Nf6 2.Nf3 g6)
Average Elo: 1950
Result: 0/1 = 0%

C10 French (1.e4 e6 2.d4 d5 3.Nc3)
Average Elo: 0
Result: 0/1 = 0%

D10 Queen's Gambit Declined Slav (1.d4 d5 2.c4 c6)
Average Elo: 1675
Result: 1/1 = 100%

E92 King's Indian (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5)
Average Elo: 1932
Result: 1/1 = 100%

A46 Queen's Pawn Game (1.d4 Nf6 2.Nf3)
Average Elo: 1574
Result: 1/1 = 100%

A25 English (1.c4 e5 2.Nc3 Nc6)
Average Elo: 1869
Result: ½/1 = 50%

A47 Queen's Indian (1.d4 Nf6 2.Nf3 b6)
Average Elo: 1547
Result: 1/1 = 100%

D80 Grunfeld (1.d4 Nf6 2.c4 g6 3.Nc3 d5)
Average Elo: 1617
Result: 1/1 = 100%

C68 Ruy Lopez, Exchange (1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6)
Average Elo: 0
Result: ½/1 = 50%

C42 Petrov Defense (1.e4 e5 2.Nf3 Nf6)
Average Elo: 0
Result: 1/1 = 100%

D38 Queen's Gambit Declined, Ragozin Variation (1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Bb4)
Average Elo: 1622
Result: 1/1 = 100%

C01 French, Exchange (1.e4 e6 2.d4 d5 3.exd5 exd5 4.Nc3 Nf6 5.Bg5)
Average Elo: 0
Result: 0/1 = 0%

D43 Queen's Gambit Declined Semi-Slav (1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6)
Average Elo: 1554
Result: 1/1 = 100%

A81 Dutch (1.d4 f5 2.g3)
Average Elo: 1701
Result: 1/1 = 100%

D25 Queen's Gambit Accepted (1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3)
Average Elo: 1590
Result: 1/1 = 100%

A21 English (1.c4 e5 2.Nc3)
Average Elo: 0
Result: ½/1 = 50%

E11 Bogo-Indian Defense (1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+)
Average Elo: 2040
Result: 0/1 = 0%

A15 English (1.c4 Nf6)
Average Elo: 0
Result: 1/1 = 100%

Openings played as Black (18)

B14 Caro-Kann, Panov-Botvinnik Attack (1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6)
Average Elo: 1800.5
Result: 2/5 = 40%

B16 Caro-Kann, Bronstein-Larsen Variation (1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ gxf6)
Average Elo: 2182
Result: 0/3 = 0%

B10 Caro-Kann (1.e4 c6)
Average Elo: 1741
Result: 1/2 = 50%

Uncommon Opening (1.g4, a3, h3, etc.)
Average Elo: 1951.5
Result: 1½/2 = 75%

B13 Caro-Kann, Exchange (1.e4 c6 2.d4 d5 3.exd5 cxd5)
Average Elo: 1565
Result: 1/2 = 50%

B12 Caro-Kann Defense (1.e4 c6 2.d4)
Average Elo: 1715
Result: 1½/2 = 75%

E52 Nimzo-Indian, 4.e3, Main line with ...b6 (1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 b6)
Average Elo: 2455
Result: 0/1 = 0%

C18 French, Winawer (1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3)
Average Elo: 2375
Result: 0/1 = 0%

D16 Queen's Gambit Declined Slav (1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4)
Average Elo: 1979
Result: ½/1 = 50%

E48 Nimzo-Indian, 4.e3 O-O 5.Bd3 d5 (1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5)
Average Elo: 1809
Result: 1/1 = 100%

B11 Caro-Kann, Two Knights, 3...Bg4 (1.e4 c6 2.Nc3 d5 3.Nf3 Bg4)
Average Elo: 0
Result: ½/1 = 50%

E01 Catalan, Closed (1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2)
Average Elo: 2372
Result: 0/1 = 0%

E34 Nimzo-Indian, Classical, Noa Variation (1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5)
Average Elo: 1383
Result: 1/1 = 100%

C07 French, Tarrasch (1.e4 e6 2.d4 d5 3.Nd2 c5)
Average Elo: 1639
Result: ½/1 = 50%

A03 Bird's Opening (1.f4 d5)
Average Elo: 1968
Result: 1/1 = 100%

A22 English (1.c4 e5 2.Nc3 Nf6)
Average Elo: 1973
Result: ½/1 = 50%

A28 English (1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6)
Average Elo: 1901
Result: 0/1 = 0%

E61 King's Indian (1.d4 Nf6 2.c4 g6 3.Nc3)
Average Elo: 1635
Result: 1/1 = 100%