Is the Blackmar-Diemar Gambit playable?

[Uri Blass]

how many chess engines (book turned off) you know play d4 d5 c4 ??

of course chess engines do to a certain degree sac for compensation.
but in a gambit, the idea is different. the compensation e.g. in the BDG is much deeper then the chess engines could smell.

its not about compensation for a material win. its about a compensation to mate the opponent.

the BDG is a good example. Kings gambit and queens gambit or englund gambit and budapest gambit
or any other gambit also show that the chess engines fail to emulate chess understanding.

and this behaviour has IMO not changed over long term of computer chess development.

the programs compute deeper and they kill humans. but they do not play better in gambits. its because they have no clue that the target is mating . instead they play for material wins.


lets hope the latest developments in computerchess help to solve this emulation lack.

d4 d5 c4 I believe that a lot of engines.
There are gambits that are not sound that engines do not play and I believe for example that the king gambit is bad against correct play.

[Dann Corbit]

Here is a list of gambit positions where the side to move is behind in material due to the gambit being accepted and the first move of the position is not a capture and engines know that the gambit is sound and the side to move is behind by more than a pawn in wood weight. In particular, the Lolli and Muzio gambits toss wood with reckless abandon. The number in brackets is a crude approximation of the wood imbalance:

Code: Select all

white to move, black ahead in material:
[-111]:( 2bqkbnr/r4ppp/p1npp3/1p6/4P3/1BN2N2/PP2QPPP/R1B2RK1 w k - ce 111; bm Be3; Opening ECO:B21; Opening: Sicilian; Variation Smith-Morra gambit, Chicago defence; 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 e6 7. O-O a6 8. Qe2 b5 9. Bb3 Ra7 *; )
[-111]:( r1b1k1nr/1pqp1ppp/p1nbp3/8/2B1P3/2N2N2/PP2QPPP/R1B2RK1 w kq - ce 7; bm Rd1; Opening Sicilian Defense: Smith-Morra Gambit. Accepted Larsen Defense 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 a6 7.O-O Qc7 8.Qe2 Bd6; CaxtonID: 2272; ECO: B21; )
[-111]:( r1b1k1nr/pp3ppp/n1p1p3/8/1BP1q3/8/PP2BPPP/R2QK1NR w KQkq - ce 36; bm Ba5; Opening ECO:D31z; Semi-Slav: Marshall Gambit, 8.Be2 Na6; 1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4 dxe4 5.Nxe4 Bb4+ 6.Bd2 Qxd4 7.Bxb4 Qxe4+ 8.Be2 Na6 *; )
[-111]:( r1b1k1nr/pppq1ppp/2np4/b7/2BP4/1QP2N2/P4PPP/RNB1K2R w KQkq - ce 88; bm O-O; Opening C52:Evans gambit, Levenfish variation; )
[-111]:( r1b1kbnr/pppp1ppp/2n5/8/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq - ce 0; bm Nf3; Opening King's Gambit: Accepted. Bishop's Gambit Boden Variation 1.e4 e5 2.f4 exf4 3.Bc4 Qh4+ 4.Kf1 Nc6; CaxtonID: 1005; ECO: C33; )
[-111]:( r1bqk1nr/ppp2ppp/1bnp4/8/2BPP3/5N2/P4PPP/RNBQ1RK1 w kq - ce 0; bm Nc3; Opening Italian Game: Evans Gambit. Main Line 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Bc5 6.d4 exd4 7.O-O d6 8.cxd4 Bb6; CaxtonID: 892; ECO: C51; )
[-111]:( r1bqk1nr/ppp2ppp/2n1p3/8/3Pp3/P1N5/1PP2PPP/R1BQKB1R w KQkq - ce 0; bm d5; Opening ECO:C15; Opening: French; Variation Winawer, Alekhine gambit, Kan variation; 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Ne2 dxe4 5. a3 Bxc3+ 6. Nxc3 Nc6 *; )
[-111]:( r1bqk1nr/pppp1ppp/2n5/2b1p3/2B1P3/2P2N2/P2P1PPP/RNBQK2R w KQkq - ce 0; bm d4; Opening C51 Italian Game: Evans Gambit, McDonnell Defense; )
[-111]:( r1bqk1nr/pppp1ppp/2n5/2b5/2B1P3/2Pp1N2/PP3PPP/RNBQK2R w KQkq - ce 37; bm b4; Opening ECO:C44z; Scotch Gambit: 5.c3 d3; 1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Bc5 5.c3 d3 *; )
[-111]:( r1bqk1nr/pppp1ppp/2n5/2b5/2BpP3/5N2/PPP2PPP/RNBQK2R w KQkq - ce 6; bm c3; Opening Scotch Game: Haxo Gambit. 1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Bc5; CaxtonID: 1935; ECO: C45; )
[-111]:( r1bqk1nr/pppp1ppp/2n5/8/1bBpP3/5N2/PPP2PPP/RNBQK2R w KQkq - ce 0; bm c3; Opening Scotch Game: Scotch Gambit. London Defense 1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Bb4+; CaxtonID: 1952; ECO: C44; )
[-111]:( r1bqk1nr/pppp1ppp/2nb4/4p3/2B1P3/2P2N2/P2P1PPP/RNBQK2R w KQkq - ce 2; bm d4; Opening Italian Game: Evans Gambit. Stone-Ware Variation 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Bd6; CaxtonID: 900; ECO: C51; )
[-111]:( r1bqk1nr/ppppbppp/2n5/8/4Pp2/2N2N2/PPPP2PP/R1BQKB1R w KQkq - ce 10; bm Bc4; Opening Vienna Game: Vienna Gambit. Cunningham Defense 1.e4 e5 2.Nc3 Nc6 3.f4 exf4 4.Nf3 Be7; CaxtonID: 2655; ECO: C25; )
[-111]:( r1bqk2r/pp2bppp/2np1n2/4p3/2B1P3/2N2N2/PP2QPPP/R1BR2K1 w kq - ce 0; bm Bb5; Opening ECO:B21; Variation Sicilian: Smith-Morra gambit, Chicago defence (...Nf6); Comment *pwo 2/01; 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 e6 7. O-O Nf6 8. Qe2 Be7 9. Rd1 e5 *; )
[-111]:( r1bqk2r/ppp1bppp/2n2n2/3p2B1/2B4Q/2N2N2/PPP2PPP/R3K2R w KQkq - ce 20; bm O-O-O; Opening ECO:C24; Bishop's Opening: Urusov Gambit, Estrin Variation; 1.e4 e5 2.Bc4 Nf6 3.d4 exd4 4.Nf3 Nxe4 5.Qxd4 Nf6 6.Bg5 Be7 7.Nc3 Nc6 8.Qh4 d5 *; )
[-111]:( r1bqk2r/ppp1bppp/2np1n2/6B1/2B4Q/2N2N2/PPP2PPP/R3K2R w KQkq - ce 7; bm O-O-O; Opening ECO:C24; Bishop's Opening: Urusov Gambit, Keres Variation; 1.e4 e5 2.Bc4 Nf6 3.d4 exd4 4.Nf3 Nxe4 5.Qxd4 Nf6 6.Bg5 Be7 7.Nc3 Nc6 8.Qh4 d6 *; )
[-111]:( r1bqk2r/ppp2ppp/2n2n2/2bpP3/2Bp4/2P2N2/PP3PPP/RNBQK2R w KQkq - ce 5; bm Bb5; Opening C53 Italian Game: Classical Variation, Greco Gambit; )
[-111]:( r1bqk2r/ppp2ppp/2n2n2/2bpP3/2Bp4/2P2N2/PP3PPP/RNBQK2R w KQkq d6 ce 0; bm Bb5; Opening Italian Game: Classical Variation. Greco Gambit 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.e5 d5; CaxtonID: 870; ECO: C53; )
[-111]:( r1bqk2r/pppp1ppp/2n2n2/2b5/2BpP3/5N2/PPP2PPP/RNBQ1RK1 w kq - ce 23; bm e5; Opening Italian Game: Scotch Gambit. Max Lange Attack 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Bc5; CaxtonID: 921; ECO: C55; )
[-111]:( r1bqk2r/pppp1ppp/2n2n2/8/1bB1P3/2N2N2/PP3PPP/R1BQK2R w KQkq - ce 0; bm e5; Opening Scotch Game: Göring Gambit. Bardeleben Variation 1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.c3 dxc3 5.Nxc3 Bb4 6.Bc4 Nf6; CaxtonID: 1932; ECO: C44; )
[-111]:( r1bqk2r/pppp1ppp/2n5/2b1P3/2Bp2n1/5N2/PPP2PPP/RNBQ1RK1 w kq - ce 26; bm Bf4; Opening Italian Game: Scotch Gambit. Max Lange Attack Spielmann Defense 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Bc5 6.e5 Ng4; CaxtonID: 924; ECO: C56; )
[-111]:( r1bqk2r/ppppbppp/2n2n2/6B1/2BQ4/2N2N2/PPP2PPP/R3K2R w KQkq - ce 10; bm Qh4; Opening ECO:C24; Bishop's Opening: Urusov Gambit, 7...Nc6 Defence; 1.e4 e5 2.Bc4 Nf6 3.d4 exd4 4.Nf3 Nxe4 5.Qxd4 Nf6 6.Bg5 Be7 7.Nc3 Nc6 *; )
[-111]:( r1bqkb1r/pp2pppp/2np4/8/3Pn3/5N2/PP2BPPP/RNBQK2R w KQkq - ce 27; bm d5; Opening B50 Sicilian Defense: Delayed Alapin, Basman-Palatnik Gambit; )
[-111]:( r1bqkb1r/ppp1pppp/2n2n2/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - ce 45; bm e3; Opening Queen's Gambit Refused: Chigorin Defense. Modern Gambit 1.d4 d5 2.c4 Nc6 3.Nc3 Nf6 4.Nf3 dxc4; CaxtonID: 1793; ECO: D06; )
[-111]:( r1bqkb1r/pppp1ppp/2n5/1B2p3/4n3/5N2/PPPP1PPP/RNBQ1RK1 w kq - ce 12; bm Re1; Opening Spanish Game: Berlin Defense. Rio Gambit Accepted 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4; CaxtonID: 2368; ECO: C67; )
[-111]:( r1bqkb1r/pppp1ppp/2n5/4P3/2Bp2n1/5N2/PPP2PPP/RNBQK2R w KQkq - ce 4; bm O-O; Opening Scotch Game: Scotch Gambit. Kingside Variation 1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Nf6 5.e5 Ng4; CaxtonID: 1951; ECO: C45; )
[-111]:( r1bqkb1r/ppppp1pp/2n2n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq - ce 7; bm d5; Opening ECO:A83j; Dutch: Staunton Gambit, 4.Bg5 Nc6; 1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.Bg5 Nc6 *; )
[-111]:( r1bqkb1r/ppppp1pp/5n2/3Pn1B1/4p3/2N5/PPP2PPP/R2QKBNR w KQkq - ce 26; bm Qe2; Opening Dutch: Staunton gambit; ECO A83; )
[-111]:( r1bqkbnr/pp1ppp1p/2n3p1/8/4P3/2N2N2/PP3PPP/R1BQKB1R w KQkq - ce 9; bm Bc4; Opening Sicilian Defense: Smith-Morra Gambit. Accepted Fianchetto Defense 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 g6; CaxtonID: 2270; ECO: B21; )
[-111]:( r1bqkbnr/ppp1pppp/2n5/8/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - ce 33; bm Nf3; Opening Queen's Gambit Accepted: Central Variation. Modern Defense 1.d4 d5 2.c4 dxc4 3.e4 Nc6; CaxtonID: 1635; ECO: D20; )
[-111]:( r1bqkbnr/ppp1pppp/8/3Pn3/4p3/2N5/PPP2PPP/R1BQKBNR w KQkq - ce 39; bm Qd4; Opening Nimzowitsch Defense: Scandinavian Variation. Bogoljubow Variation Nimzowitsch Gambit 1.e4 Nc6 2.d4 d5 3.Nc3 dxe4 4.d5 Ne5; CaxtonID: 1461; ECO: B00; )
[-111]:( r1bqkbnr/pppnpppp/8/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - ce 57; bm e4; Opening Queen's Gambit Accepted: Godes Variation. 1.d4 d5 2.c4 dxc4 3.Nf3 Nd7; CaxtonID: 1653; ECO: D21; )
[-111]:( r1bqkbnr/pppp1p1p/2n5/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - ce 0; bm d4; Opening King's Gambit: Accepted. Kieseritsky Gambit Neumann Defense 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 Nc6; CaxtonID: 1048; ECO: C39; )
[-111]:( r1bqkbnr/pppp1ppp/2n5/4p3/2B1P3/2P2N2/P2P1PPP/RNBQK2R w KQkq - ce 28; bm O-O; Opening ECO:C51; Opening: Evans gambit; Variation Mayet defence; 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bf8 *; )
[-111]:( r1bqkbnr/pppp1ppp/2n5/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - ce 19; bm d4; Opening King's Gambit: Accepted. MacLeod Defense 1.e4 e5 2.f4 exf4 3.Nf3 Nc6; CaxtonID: 1060; ECO: C34; )
[-111]:( r2qk1nr/ppp2ppp/1bnp4/8/2BPP1b1/2N2N2/P4PPP/R1BQ1RK1 w kq - ce 19; bm Bb5; Opening ECO:C51; Opening: Evans gambit; 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Bg4 *; )
[-111]:( r2qk1nr/ppp2ppp/2np4/2b5/2BpP1b1/2P2N2/PP3PPP/RNBQ1RK1 w kq - ce 0; bm Qb3; Opening Scotch Game: Scotch Gambit. Cochrane-Anderssen Variation 1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Bc5 5.O-O d6 6.c3 Bg4; CaxtonID: 1949; ECO: C44; )
[-111]:( r2qk1nr/pppb1ppp/2np4/b3p3/2BPP3/2P2N2/P4PPP/RNBQ1RK1 w kq - ce 16; bm Qb3; Opening ECO:C52; Opening: Evans gambit; Variation Sanders-Alapin variation; 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. O-O d6 7. d4 Bd7 *; )
[-111]:( rn1qkb1r/pb3p2/2p1pn1p/1p4p1/2pPP3/2N2NB1/PP2BPPP/R2QK2R w KQkq - ce 0; bm h4; Opening ECO:D43n; Semi-Slav: Moscow, 6.Bh4 Gambit, Main Line, 9...Bb7; 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bh4 dxc4 7.e4 g5 8.Bg3 b5 9.Be2 Bb7 *; )
[-111]:( rn1qkb1r/ppp1pppp/4bn2/8/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq - ce 50; bm Nc3; Opening Queen's Gambit Accepted: Winawer Defense. 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 Be6; CaxtonID: 1673; ECO: D25; )
[-111]:( rnb1k1nr/pp2ppbp/2pp2p1/6B1/3PP3/2N2N2/PqPQ1PPP/R3KB1R w KQkq - ce 28; bm Rb1; Opening Modern Defense: Two Knights Variation. Suttles Variation Tal Gambit 1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Nf3 c6 5.Bg5 Qb6 6.Qd2 Qxb2; CaxtonID: 1323; ECO: B06; )
[-111]:( rnb1k1nr/pp3ppp/2p1p3/8/1BP1q3/8/PP3PPP/R2QKBNR w KQkq - ce 14; bm Be2; Opening Semi-Slav: Marshall gambit; ECO D31; )
[-111]:( rnb1k1nr/pp3ppp/4p3/2B5/2P5/8/PP2BPqP/R2QK1NR w KQkq - ce 31; bm Bf3; Opening Semi-Slav Defense: Marshall Gambit. Tolush Variation 1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4 dxe4 5.Nxe4 Bb4+ 6.Bd2 Qxd4 7.Bxb4 Qxe4+ 8.Be2 c5 9.Bxc5 Qxg2; CaxtonID: 1977; ECO: D31; )
[-111]:( rnb1k1nr/pppp1ppp/8/2b5/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq - ce 33; bm d4; Opening King's Gambit: Accepted. Bishop's Gambit Greco Variation 1.e4 e5 2.f4 exf4 3.Bc4 Qh4+ 4.Kf1 Bc5; CaxtonID: 1013; ECO: C33; )
[-111]:( rnb1k2r/pppn1ppp/4p3/3pP1q1/3P4/2N5/PPP2PP1/R2QKBNR w KQkq - ce 24; bm Qd3; Opening French Defense: Alekhine-Chatard Attack. Albin-Chatard Gambit 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.h4 Bxg5 7.hxg5 Qxg5; CaxtonID: 599; ECO: C13; )
[-111]:( rnb1k2r/ppppnpbp/8/6p1/2BPPp1q/2N5/PPP3PP/R1BQ1KNR w kq - ce 0; bm g3; Opening ECO:C33; Opening: KGA; Variation bishop's gambit, classical defence; 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 g5 5. Nc3 Bg7 6. d4 Ne7 *; )
[-111]:( rnb1kb1r/ppp2p1p/3p3n/4N3/2BPPppq/8/PPP3PP/RNBQ1K1R w kq - ce 0; bm Nd3; Opening ECO:C37; Opening: KGA; Variation Salvio gambit, Anderssen counter-attack; 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 Nh6 7. d4 d6 *; )
[-111]:( rnb1kbnr/p1pp1ppp/8/1p6/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq - ce 0; bm Nf3; Opening King's Gambit: Accepted. Bishop's Gambit Bryan Countergambit 1.e4 e5 2.f4 exf4 3.Bc4 Qh4+ 4.Kf1 b5; CaxtonID: 1008; ECO: C33; )
[-111]:( rnb1kbnr/pppp1p1p/8/6p1/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq - ce 0; bm Nc3; Opening King's Gambit: Accepted. Bishop's Gambit Lopez Variation 1.e4 e5 2.f4 exf4 3.Bc4 Qh4+ 4.Kf1 g5; CaxtonID: 1016; ECO: C33; )
[-111]:( rnb1kbnr/pppp2pp/8/4N3/2BPp3/8/PPP2PqP/RNBQK2R w KQkq - ce 4; bm Qh5+; Opening Latvian Gambit: Mayet Attack. Poisoned Pawn Variation 1.e4 e5 2.Nf3 f5 3.Bc4 fxe4 4.Nxe5 Qg5 5.d4 Qxg2; CaxtonID: 1262; ECO: C40; )
[-111]:( rnb1kbnr/ppppqp1p/8/8/2B1Ppp1/5N2/PPPP2PP/RNBQ1RK1 w kq - ce 64; bm Nc3; Opening ECO:C37; Opening: KGA; Variation Muzio gambit, Kling and Horwitz counter-attack; 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O Qe7 *; )
[-111]:( rnbqk1nr/ppp2ppp/4p3/8/1b1Pp3/2N5/PPP1NPPP/R1BQKB1R w KQkq - ce 0; bm a3; Opening ECO:C15q; French: Winawer, Alekhine Gambit Accepted; 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Ne2 dxe4 *; )
[-111]:( rnbqk1nr/pppp1pbp/8/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - ce 0; bm d4; Opening King's Gambit: Accepted. Kieseritsky Gambit Paulsen Defense 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 Bg7; CaxtonID: 1049; ECO: C39; )
[-111]:( rnbqk2r/pp1pbppp/2p2n2/6B1/2BQ4/2N2N2/PPP2PPP/R3K2R w KQkq - ce 0; bm O-O-O; Opening ECO:C24; Bishop's Opening: Urusov Gambit, 7...c6 Defence; 1.e4 e5 2.Bc4 Nf6 3.d4 exd4 4.Nf3 Nxe4 5.Qxd4 Nf6 6.Bg5 Be7 7.Nc3 c6 *; )
[-111]:( rnbqkb1r/1p3ppp/p2ppn2/8/2B1P3/2N2N2/PP3PPP/R1BQ1RK1 w kq - ce 7; bm e5; Opening Sicilian Defense: Smith-Morra Gambit. Accepted Chicago Defense 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 d6 5.Bc4 e6 6.Nf3 Nf6 7.O-O a6; CaxtonID: 2268; ECO: B21; )
[-111]:( rnbqkb1r/p1p1pppp/1p3n2/8/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - ce 49; bm Ne5; Opening Blackmar-Diemer Gambit: Ritter Defense. 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 b6; CaxtonID: 206; ECO: D00; )
[-111]:( rnbqkb1r/p1ppp1pp/1p3n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq - ce 95; bm f3; Opening ECO:A83; Opening: Dutch; Variation Staunton gambit, Nimzovich variation; 1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 b6 *; )
[-111]:( rnbqkb1r/p2ppppp/5n2/2pP4/2p5/5N2/PP2PPPP/RNBQKB1R w KQkq - ce 87; bm Nc3; Opening ECO:A57d; Benko Gambit: 4.Nf3 bxc4; 1.d4 Nf6 2.c4 c5 3.d5 b5 4.Nf3 bxc4 *; )
[-111]:( rnbqkb1r/p3pppp/5n2/1ppP4/2p1P3/2N5/PP3PPP/R1BQKBNR w KQkq - ce 70; bm Bf4; Opening Queen's Gambit Accepted: Linares Variation. 1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 Nf6 5.Nc3 b5; CaxtonID: 1658; ECO: D20; )
[-111]:( rnbqkb1r/pp1pp1pp/2p2n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq - ce 27; bm f3; Opening Dutch Defense: Staunton Gambit. Chigorin Variation 1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.Bg5 c6; CaxtonID: 402; ECO: A83; )
[-111]:( rnbqkb1r/pp3pp1/2p1pn1p/8/2pP3B/2N2N2/PP2PPPP/R2QKB1R w KQkq - ce 0; bm e4; Opening ECO:D43k; Semi-Slav: Moscow, 6.Bh4 Gambit Accepted; 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 6.Bh4 dxc4 *; )
[-111]:( rnbqkb1r/ppp1ppp1/5n2/7p/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - ce 6; bm Bg5; Opening Blackmar-Diemer Gambit: Rook Pawn Defense. 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 h5; CaxtonID: 207; ECO: D00; )
[-111]:( rnbqkb1r/ppp1pppp/5n2/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - ce 31; bm e3; Opening Queen's Gambit Accepted: Deferred. 1.d4 d5 2.Nf3 Nf6 3.c4 dxc4; CaxtonID: 1649; ECO: D25; )
[-111]:( rnbqkb1r/ppp1pppp/5n2/8/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - ce 9; bm e5; Opening Queen's Gambit Accepted: Central Variation. Alekhine System 1.d4 d5 2.c4 dxc4 3.e4 Nf6; CaxtonID: 1631; ECO: D20; )
[-111]:( rnbqkb1r/pppp1ppp/5n2/8/4Pp2/2N5/PPPP2PP/R1BQKBNR w KQkq - ce 33; bm e5; Opening ECO:C29a; Vienna Gambit: 3...exf4; 1.e4 e5 2.Nc3 Nf6 3.f4 exf4 *; )
[-111]:( rnbqkb1r/ppppnppp/8/8/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - ce 17; bm Nc3; Opening ECO:C33; Opening: KGA; Variation bishop's gambit, Steinitz defence; 1. e4 e5 2. f4 exf4 3. Bc4 Ne7 *; )
[-111]:( rnbqkb1r/ppppnppp/8/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq - ce 13; bm d4; Opening King's Gambit: Accepted. Bonsch-Osmolovsky Variation 1.e4 e5 2.f4 exf4 3.Nf3 Ne7; CaxtonID: 1021; ECO: C34; )
[-111]:( rnbqkb1r/ppppp1pp/5n2/8/3Pp3/2N5/PPP2PPP/R1BQKBNR w KQkq - ce 0; bm Bg5; Opening ECO:A82; Dutch: Staunton Gambit, 3.Nc3 Nf6; 1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 *; )
[-111]:( rnbqkb1r/ppppp2p/5np1/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq - ce 0; bm Bc4; Opening ECO:A83d; Dutch: Staunton Gambit, 4.Bg5 g6; 1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.Bg5 g6 *; )
[-111]:( rnbqkbnr/1pp1pppp/p7/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - ce 5; bm e3; Opening Queen's Gambit Accepted: Alekhine Defense. 1.d4 d5 2.c4 dxc4 3.Nf3 a6; CaxtonID: 1627; ECO: D22; )
[-111]:( rnbqkbnr/2p1pppp/p7/1p6/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq - ce 18; bm a4; Opening Queen's Gambit Accepted: Alekhine Defense. Haberditz Variation 1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 b5; CaxtonID: 1629; ECO: D22; )
[-111]:( rnbqkbnr/p1p1pppp/8/1p6/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - ce 72; bm a4; Opening Queen's Gambit Accepted: Slav Gambit. 1.d4 d5 2.c4 dxc4 3.Nf3 b5; CaxtonID: 1671; ECO: D21; )
[-111]:( rnbqkbnr/p1p1pppp/8/1p6/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - ce 46; bm a4; Opening Queen's Gambit Accepted: Central Variation. Greco Variation 1.d4 d5 2.c4 dxc4 3.e4 b5; CaxtonID: 1632; ECO: D20; )
[-111]:( rnbqkbnr/p3pppp/8/1ppP4/2p1P3/8/PP3PPP/RNBQKBNR w KQkq - ce 146; bm a4; Opening Queen's Gambit Accepted: Central Variation. Rubinstein Defense Yefimov Gambit 1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 b5; CaxtonID: 1637; ECO: D20; )
[-111]:( rnbqkbnr/pp2pppp/8/2p5/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - ce 40; bm e4; Opening Queen's Gambit Accepted: Gunsberg Defense. 1.d4 d5 2.c4 dxc4 3.Nf3 c5; CaxtonID: 1654; ECO: D21; )
[-111]:( rnbqkbnr/pp2pppp/8/2p5/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - ce 39; bm Nf3; Opening Queen's Gambit Accepted: Central Variation. Rubinstein Defense 1.d4 d5 2.c4 dxc4 3.e4 c5; CaxtonID: 1636; ECO: D20; )
[-111]:( rnbqkbnr/pp3ppp/8/2p5/3Pp3/2N5/PP3PPP/R1BQKBNR w KQkq - ce 0; bm Bb5+; Opening ECO:D32l; QGD Tarrasch: Marshall Gambit; 1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.e4 dxe4 *; )
[-111]:( rnbqkbnr/ppp1pppp/8/8/2p5/5N2/PP1PPPPP/RNBQKB1R w KQkq - ce 26; bm e3; Opening Reti Opening: Reti Gambit. 1.Nf3 d5 2.c4 dxc4; CaxtonID: 1850; ECO: A09; )
[-111]:( rnbqkbnr/ppp1pppp/8/8/2pP4/8/PP2PPPP/RNBQKBNR w KQkq - ce 36; bm Nf3; Opening Queen's Gambit Accepted: General. 1.d4 d5 2.c4 dxc4; CaxtonID: 1651; ECO: D20; )
[-111]:( rnbqkbnr/ppp2p1p/8/3pN3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - ce 0; bm d4; Opening King's Gambit: Accepted. Kieseritsky Gambit Brentano Defense 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 d5; CaxtonID: 1044; ECO: C39; )
[-111]:( rnbqkbnr/ppp2ppp/4p3/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - ce 13; bm e3; Opening Queen's Gambit Accepted: Rosenthal Variation. 1.d4 d5 2.c4 dxc4 3.Nf3 e6; CaxtonID: 1668; ECO: D21; )
[-111]:( rnbqkbnr/ppp2ppp/8/4p3/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - ce 21; bm Nf3; Opening Queen's Gambit Accepted: Central Variation. McDonnell Defense 1.d4 d5 2.c4 dxc4 3.e4 e5; CaxtonID: 1634; ECO: D20; )
[-111]:( rnbqkbnr/pppp1p1p/8/6p1/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - ce 12; bm h4; Opening King's Gambit: Accepted. Bishop's Gambit Anderssen Defense 1.e4 e5 2.f4 exf4 3.Bc4 g5; CaxtonID: 1003; ECO: C33; )
[-111]:( rnbqkbnr/pppp1p2/8/4N2p/4PppP/8/PPPP2P1/RNBQKB1R w KQkq - ce 0; bm Bc4; Opening King's Gambit: Accepted. Kieseritsky Gambit Long Whip 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 h5; CaxtonID: 1047; ECO: C39; )
[-111]:( rnbqkbnr/pppp2pp/8/5p2/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq - ce 0; bm Qe2; Opening King's Gambit: Accepted. Bishop's Gambit Gianutio Gambit 1.e4 e5 2.f4 exf4 3.Bc4 f5; CaxtonID: 1012; ECO: C33; )
[-111]:( rnbqkbnr/ppppp1pp/8/8/3P2p1/8/PPP1PP1P/RNBQKBNR w KQkq - ce 0; bm Bg2; Opening ECO:A80b; Dutch: Krejcik Gambit Accepted; 1.d4 f5 2.g4 fxg4 *; )
[-111]:( rnbqkbnr/ppppp1pp/8/8/3Pp3/8/PPP2PPP/RNBQKBNR w KQkq - ce 0; bm Nc3; Opening Dutch Defense: Staunton Gambit. Accepted 1.d4 f5 2.e4 fxe4; CaxtonID: 399; ECO: A82; )
[-222]:( r1bqk1nr/pppp1ppp/2n5/b7/2B1P3/2Pp1N2/P4PPP/RNBQ1RK1 w kq - ce 26; bm Qb3; Opening C52 Italian Game: Evans Gambit, Dufresne Defense; )
[-222]:( r1bqk2r/pppp1ppp/2n2n2/b7/2BpP3/2P2N2/P4PPP/RNBQ1RK1 w kq - ce 0; bm Ba3; Opening C52 Italian Game: Evans Gambit, Anderssen Defense; )
[-222]:( r1bqk2r/ppppnppp/2n5/b7/2BpP3/2P2N2/P4PPP/RNBQ1RK1 w kq - ce 0; bm Ng5; Opening Italian Game: Evans Gambit. Mieses Defense 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 exd4 7.O-O Nge7; CaxtonID: 893; ECO: C52; )
[-222]:( r1bqkb1r/pppp1ppp/2n5/3N4/3pn3/5N2/PPP2PPP/R1BQKB1R w KQkq - ce 0; bm Bd3; Opening ECO:C47m; Four Knights: Belgrade Gambit, 5...Nxe4; 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 exd4 5.Nd5 Nxe4 *; )
[-222]:( r1bqkb1r/pppp1ppp/2n5/8/2Bpn3/5N2/PPP2PPP/RNBQ1RK1 w kq - ce 0; bm Re1; Opening Italian Game: Scotch Gambit. Double Gambit Accepted 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.O-O Nxe4; CaxtonID: 920; ECO: C56; )
[-222]:( rnb1k1nr/ppp2ppp/4p3/8/1b1qp1Q1/2N5/PPPB1PPP/R3KBNR w KQkq - ce 0; bm Nf3; Opening French Defense: Winawer Variation. Fingerslip Variation Kunin Double Gambit 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Bd2 dxe4 5.Qg4 Qxd4; CaxtonID: 714; ECO: C15; )
[-304]:( 1rb1kbnr/pp1p1ppp/3P1qn1/1N6/5P2/8/PPP3PP/R1BQKB1R w KQk - ce 133; bm Be3; Opening Four Knights Game: Halloween Gambit. Plasma Variation 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Nxe5 Nxe5 5.d4 Nc6 6.d5 Ne5 7.f4 Ng6 8.e5 Ng8 9.d6 cxd6 10.exd6 Qf6; CaxtonID: 553; ECO: C46; )
[-333]:( r1b1k1nr/pppp1ppp/2n2q2/b7/2B1P3/1Qp2N2/P4PPP/RNB2RK1 w kq - ce 9; bm Bg5; Opening Evans gambit; ECO C52; )
[-333]:( r1bqk1nr/pppp1ppp/2n5/b7/2B1P3/2p2N2/P4PPP/RNBQ1RK1 w kq - ce 17; bm Qb3; Opening Italian Game: Evans Gambit. Compromised Defense 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 exd4 7.O-O dxc3; CaxtonID: 884; ECO: C52; )
[-1245]:( rnb2bnr/pppp1k1p/5q2/8/4P3/2N1pQ2/PPP3PP/R4RK1 w - - ce 923; bm Qh5+; Opening King's Gambit: Accepted. Double Muzio Gambit Young Gambit 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.O-O gxf3 6.Qxf3 Qf6 7.Bxf7+ Kxf7 8.d4 Qxd4+ 9.Be3 Qf6 10.Nc3; CaxtonID: 1030; ECO: C37; )

[mclane]

e.g.

[pgn] [Event "40/120"] [Site "SCW"] [Date "2018.07.06"] [Round "1"] [White "CSTal v93 beforewin EMU g7"] [Black "Nimzo 2.2.1 Pentium 133 mhz"] [ECO "D00"] [Result "1/2-1/2"] 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. Ne5 O-O 8. O-O Nc6 9. Nxc6 bxc6 10. Ne2 Bf5 11. c3 c5 12. dxc5 Ne4 13. Nd4 e6 14. Be3 Qh4 15. Rf4 Qd8 16. Nc6 Qe8 17. Bb5 a6 18. Ba4 Bh6 19. Rxe4 Bxe4 20. Bxh6 Bxc6 21. Qd4 e5 22. Qh4 f5 23. Bxf8 Bxa4 24. Bh6 e4 25. Qf6 Qf7 26. Qd4 Qd7 27. Qc4+ Kh8 28. Bf4 Kg7 29. Be5+ Kf8 30. Rf1 Rb8 31. Qxa6 Rxb2 32. Qf6+ Qf7 33. Qd8+ Be8 34. Bxc7 Kg8 35. Be5 1/2-1/2 [/pgn]

Look in the position after move 8. white has a very cool position for the sacced pawn.

[reflectionofpower]

Playing any gambit against any human will work well IF you know it better than he does and it works even better if he is unfamiliar with it but against a (C) you'll get your "hiney handed to you on a platter." because they are just more tactical and defensive than people are.

On the Blackmar-Diemar Gambit I have played 288 games verse people and it's about even steven on wins/losses. I stopped playing it because it does not give a huge advantage if the other person is cautious which he should be and just fortifies himself.

[todd]

1. d4 Nf6 2. Nc3 d5 3. e4 Nxe4 is nice if you can get it, but beware - white can play 1. d4 Nf6 2. f3 d5 3. e4 dxe4 4. Nc3 and you've been tricked into the dxe4 variation.

Black doesn't have to play along. Instead of 3...dxe4 he can meet 3.e4 with 3...e5 when 4.dxe5 runs into 4...Nxe4.

Yes. A caveat here: you have to be OK with a draw as black if you want to play this because after 1. d4 Nf6 2. f3 d5 3. e4 e5 4. dxe5 Nxe4 5. fxe4 black must give a repetition with Qh4 and Qf4/Qg5/Qh6. This can be inappropriate if you tend to play players lower rated than you (but great if you tend to face higher rated opponents). Or you can have two different approaches depending on who you face.

3...c5 is also a reasonable way to play if you want a complex game with chances for both sides but don't want to accept the pawn sacrifice. White can play e5, f4, and c3 and black is likely to play e6, resulting in a typical French structure.

For those who are neither OK a draw nor like the French, perhaps you should just learn one of the dxe4 lines, since you can't force the Nxe4 line.

[BeyondCritics]

...

On the Blackmar-Diemar Gambit I have played 288 games verse people and it's about even steven on wins/losses. I stopped playing it because it does not give a huge advantage if the other person is cautious which he should be and just fortifies himself.

What would you play with black against it?
Are there any typical pitfalls for black?

[reflectionofpower]

...

On the Blackmar-Diemar Gambit I have played 288 games verse people and it's about even steven on wins/losses. I stopped playing it because it does not give a huge advantage if the other person is cautious which he should be and just fortifies himself.

What would you play with black against it?
Are there any typical pitfalls for black?

In understanding a gambit the main theme is not to get caught up in hanging on to the extra pawn/piece and as the other side is way ahead on development you get crushed with the extra pawn in mouth. Just develop your pieces as quickly as possible and don't try to hang onto the pawn and castle your K to safety quickly.

[jefk]

also analyzed this gambit some time ago, with various engines (Gull sometimes gives intesting moves/lines)/ anyway i still believe in 5...c6! as strongest response..

So i wouldn't play it against a computer (if Stockfish with Black gives -0.6 for White in this position, you are already in trouble). Second probably 5...e6!, 5...g6 is an idea but drawish imho.

[BeyondCritics]

also analyzed this gambit some time ago, with various engines (Gull sometimes gives intesting moves/lines)/ anyway i still believe in 5...c6! as strongest response..

So i wouldn't play it against a computer (if Stockfish with Black gives -0.6 for White in this position, you are already in trouble). Second probably 5...e6!, 5...g6 is an idea but drawish imho.

For me it looks currently like the opposite, after 5..g6 black (that means: stockfish) can claim an advantage, but after 5..c6 white gets away with at least some kind of compensation. I will post my personal notes here, clicked together on two afternoons. Feel free to point out doubts. These notes are not meant to be used for correspondence chess. I can confirm, that an analysis up to play 40 is often required but i don't have the cluster to do that on any position. There is always the danger to run into some attack which is trivial for stockfish, but not so trivial for humans, e.g. the incorrect "Studier Attack" 6.Bc4 Bg7 7.0-0 0-0 8.Qe1

[pgn][Event "Blackmar-Diemer"] [Site "?"] [Date "2018.07.10"] [Round "?"] [White "?"] [Black "?"] [Result "*"] [EventDate "2018.07.10"] 1.d4 Nf6 2.f3 ( 2.Nc3 d5 3.e4 Nxe4 4.Nxe4 dxe4 5.Bf4 ( 5.Be3 e6 ( 5...Bf5 6.g4 Bg6 7.Ne2 ( 7.Ne2 ) ( 7.c3 h5 8.g5 ) 7...Nc6 8.c3 e6 ( 8...Qd7 ) ( 8...e5 9.h4 h5 10.Qa4 ( 10.Qb3 Qd7 11.Qxb7 Rb8 12.Qa6 Rxb2 13.d5 Nb8 14.Qxa7 c6 15.Qxd7+ Kxd7 16.dxc6+ Kxc6 17.a4 hxg4 18.h5 Bh7 ( 18...Rxh5 19.Rxh5 Bxh5 20.a5 ) 19.h6 gxh6 20.a5 Na6 21.Ng3 Nc7 22.Bxh6 Bc5 23.Be3 Bxe3 24.fxe3 Nd5 25.a6 Nxe3 26.Rxh7 Rxh7 27.a7 Rh8 28. a8=Q+ Rxa8 29.Rxa8 f5 30.Ra6+ Kd7 31.Be2 f4 32.Nxe4 g3 33.Nd2 e4 ) 10...Qd7 ) 9.h4 h6 10.Nf4 Bh7 11.Qb3 Qd7 12.Qxb7 ( 12.O-O-O Na5 13.Qc2 O-O-O 14.b4 Nc6 15.Qa4 a6 16.Bxa6 Nxb4 17.Bb5 c6 18.Qa8+ Kc7 19.Qa5+ b6 20.Qa7+ Kc8 21.Qa8+ Kc7 ) 12...Rb8 13.Qa6 e5 ( 13...Rxb2 14.Bb5 ) 14.Nh5 exd4 15.O-O-O d3 16.g5 Qd5 17.gxh6 ) 6.Qd2 ) ( 5.f3 e5 6.dxe5 ( 6.Be3 exd4 7.Qxd4 Qxd4 8.Bxd4 Nc6 ) 6...Qxd1+ 7.Kxd1 Bf5 ) ( 5.Bc4 Nc6 6.Be3 ( 6.d5 Na5 7.Qe2 ( 7.Be2 e6 ) 7...Nxc4 8.Qxc4 e6 ) ( 6.c3 e5 7.Qb3 Qf6 8.Ne2 exd4 9.O-O Bd6 10.Ng3 Qe7 ) ) 5...Bf5 ( ) ( 5...e6 6.Qd2 Bd6 ( 6...Nd7 7.f3 ) 7.O-O-O ( 7.f3 Bxf4 8.Qxf4 Qxd4 ) 7...Nd7 8.f3 Nf6 9.Kb1 Bd7 10.Bg5 exf3 11.Nxf3 Ne4 12.Qe3 Nxg5 13. Nxg5 Qf6 14.Ne4 Qf4 15.Nxd6+ Qxd6 16.Be2 O-O-O 17.Bf3 Kb8 ) 6.g4 ( 6.c3 Nd7 7.Qb3 e5 8.Bxe5 Nxe5 9.dxe5 e3 10.Nf3 exf2+ 11.Kxf2 Bc5+ 12.Kg3 Qe7 13.Rd1 ( 13.Qxb7 O-O ) 13...h5 14.h4 c6 ) ( 6.Ne2 e6 ) 6...Bg6 7.h4 h5 8.g5 e6 9.Bg2 ( 9.Ne2 Bd6 10.Bg2 ) 9...Bd6 10.Ne2 O-O 11.Qd2 Nc6 12.O-O-O Qd7 ( 12...a5 13.a3 ( 13.Ng3 Bxf4 14.Qxf4 Qd5 ) 13...Ne7 14.Ng3 b5 15.Bxe4 Qd7 ( 15...Bxe4 16.Nxe4 ) 16.Bxa8 Rxa8 ) 13.a3 Rad8 14.Kb1 Ne7 15.Bxd6 cxd6 16.Nf4 d5 17.f3 exf3 18.Bxf3 Rc8 19.Nxg6 fxg6 20.Be2 Rf2 21.Qe3 Rcf8 22.Rhe1 R8f4 23.Bd3 Nf5 24.Qxe6+ Qxe6 25.Rxe6 Rxh4 26.Re8+ Kh7 27.Ra8 Nxd4 28.Rxa7 Rg4 29.Rxb7 Rxg5 30. Bxg6+ Kxg6 31.Rxd4 Rg1+ 32.Ka2 ) 2...d5 ( 2...c5 3.d5 e6 ( 3...d6 4.c4 e6 ( 4...b5 5.cxb5 a6 6.e4 g6 7.Na3 $5 Bg7 8.Ne2 O-O 9.Nc3 $14 ) 5.e4 exd5 6.cxd5 g6 $14 ) ( 3...g6 4.Nh3 $5 ) 4.e4 ( 4.c4 b5 $1 ) 4...exd5 5.exd5 d6 $13 ) 3.e4 dxe4 ( 3...c5 $5 4.e5 Ng8 5.f4 cxd4 ) ( 3...e5 4.dxe5 Nxe4 5.fxe4 Qh4+ 6.Kd2 Qg5+ 7.Ke2 Qh5+ 8.Ke1 $10 ) 4.Nc3 exf3 ( 4...c6 5.Bc4 ( 5.Nxe4 Nbd7 $1 $15 ) ( 5.fxe4 e5 6.dxe5 Qxd1+ 7.Nxd1 Nxe4 $13 ) 5...Bf5 ( 5...exf3 6.Nxf3 Bf5 7.Nh4 Bg6 8.Nxg6 hxg6 $15 ) 6.g4 Bg6 7.g5 Nd5 8.Nxe4 ( 8.fxe4 Nxc3 9.bxc3 Bxe4 10.Nf3 Bd5 11.Bd3 g6 12.c4 Be6 13.Rb1 Qc8 14.O-O Bg7 15.Bf4 Nd7 $17 ) 8...Nd7 9.Ne2 $15 ) 5.Nxf3 g6 6.Be3 ( 6.Bc4 Bg7 7.O-O ( 7.Ne5 O-O 8.O-O Nc6 $1 9.Nxc6 bxc6 $17 ) 7...O-O 8.Qe1 ( 8.Be3 Nc6 ( 8...c6 9.Qe2 Bg4 10.h3 Bxf3 11.Qxf3 Nbd7 12.Rad1 $15 ) ( 8...Bg4 $6 9.h3 Bxf3 10.Qxf3 c6 11.Rad1 Nbd7 $13 ) ( 8...a6 9.Ne5 ( 9.a4 ) 9...Nc6 ( 9...b5 $2 10.Qf3 Ra7 11.Bb3 $14 ) 10.Nxc6 bxc6 11.h3 ) ( 8...Bf5 9.h3 Nc6 ) 9.h3 ( 9.d5 $2 Ng4 $1 $17 ) 9...a6 $5 10.a4 ( 10.Qd2 b5 11.Bd3 Bb7 12.a4 Nb4 $1 13.axb5 Nxd3 14.Qxd3 axb5 15.Rxa8 Qxa8 16.Nxb5 Be4 17.Qe2 Nh5 18.Qf2 Qb7 19.c4 c6 20.Nc3 Bxf3 21.Qxf3 Qxb2 $17 ) ( 10.a3 b5 11.Be2 ( 11.Ba2 e6 12.Qd2 Bb7 13.Rae1 Ne7 $17 ) 11...Bb7 12.Qe1 e6 13.Rd1 Ne7 14.Bg5 h6 15.Bf4 Ned5 $17 ) 10...Qd6 ( 10...b6 $6 11.Qe1 e6 12.Rd1 Qe7 $13 ( 12...Ne7 13.Bg5 Nf5 ( 13...Bb7 14.Ne5 Nfd5 15.Bxd5 exd5 16.Qh4 $18 ) ( 13...h6 14.d5 $1 $14 ) 14.d5 $13 ) ) ( 10...Bf5 11.d5 ) 11.Qd2 Bf5 12.Bb3 ( 12.Qf2 Qb4 13.Bb3 Na5 14.d5 ( 14.Qh4 Nxb3 15.cxb3 Qxb3 16.Rf2 h5 $1 $19 ) 14...Nxb3 15.cxb3 Ne4 16.Nxe4 Qxe4 $17 ) ( 12.Rad1 Qb4 13.b3 Rad8 $17 ) 12...Na5 13.Ba2 c5 14.Rad1 ( 14.Rae1 Rad8 15.d5 ( 15.dxc5 Qxd2 16.Bxd2 Nc6 17.Bb3 h5 $17 ) 15...Qb6 16.g4 Bc8 17.Ng5 Nc6 18.Nge4 Nxe4 19.Nxe4 Qxb2 20.c3 Qxd2 21.Bxd2 Ne5 $17 ) ( 14.d5 $2 b5 $1 15.axb5 axb5 16.Nxb5 Qb6 17.c4 ( 17.Nc3 Qxb2 $19 ) 17...Ne4 $19 ) 14...Rad8 15.Qf2 c4 16.d5 Qb4 17.Bb6 Rd6 18.Bd4 Qxb2 19.g4 Bc8 20. Rb1 Qa3 21.Bxc4 ( 21.Ra1 Bxg4 $19 ) 21...Rd7 22.Bb3 $17 ) 8...Nc6 9.Qh4 Bg4 10.Ne2 ( 10.Ng5 Qxd4+ 11.Kh1 Qxc4 12.Rxf6 h6 13.Rf4 hxg5 14.Rxc4 gxh4 15. Rxg4 Rad8 $19 ) ( 10.Be3 e6 ( 10...Na5 11.Bd3 c5 12.dxc5 $13 ) 11.Bg5 $2 Bxf3 12.Rxf3 Qxd4+ 13.Qxd4 Nxd4 14.Rxf6 h6 15.Bh4 g5 16. Rf2 gxh4 $19 ) ( 10.Kh1 Bxf3 11.Rxf3 Qxd4 12.Rf4 Qb6 $19 ) 10...Na5 ( 10...e6 $6 11.Bg5 $14 ) 11.Bd3 c5 12.Bh6 c4 ( 12...Rc8 $5 13.c4 cxd4 14.Ng5 Bxe2 15.Bxe2 ( 15.Bxg7 Kxg7 16.Rxf6 Bxd3 $1 $19 ) 15...d3 16.Bxg7 Kxg7 17.Rxf6 dxe2 18.Rxf7+ Rxf7 19.Ne6+ Kg8 20. Nxd8 Rxd8 $19 21.Qg4 Rd2 22.Re1 Nc6 23.h4 Nd4 24.h5 Kf8 $19 ) ( 12...Bxh6 13.Qxh6 Bxf3 14.Rxf3 c4 15.Bf5 Kh8 16.Bh3 $17 ) 13.Bxg7 ( 13.Ng5 cxd3 14.Bxg7 Kxg7 15.Rxf6 h5 16.Rxf7+ Rxf7 17.Nxf7 Kxf7 18.Qf2+ Kg7 19.cxd3 Bxe2 ) 13...Kxg7 14.Be4 Qb6 $17 ) ( 6.Bg5 Bg7 7.Qd2 ( 7.Bc4 O-O 8.Qe2 Nc6 $1 ( 8...a6 9.O-O-O b5 10.Bb3 Nc6 11.Rhe1 Na5 12.Qxe7 Bb7 $15 ) 9.O-O-O Bg4 10.Kb1 Bxf3 11.Qxf3 Nxd4 12.Qxb7 Qd6 13.Qa6 Qxa6 14. Bxa6 Ne6 15.Bxf6 exf6 16.Nd5 Rab8 $17 ) 7...O-O 8.O-O-O c6 ( 8...c5 ) ) 6...Bg7 7.Qd2 O-O 8.O-O-O c6 $5 ( 8...Nc6 9.d5 Nb4 $5 10.a3 a5 11.Bc4 ( 11.axb4 axb4 12.Nb1 Ra2 $13 ) 11...Bf5 12.axb4 axb4 13.Nb1 Qd6 14.Bf4 Qc5 15.Qd4 Qa5 16.Be5 Bh6+ 17. Bf4 Bg7 $10 ) 9.Kb1 ( 9.Bh6 Bg4 10.Be2 Nbd7 11.Bxg7 Kxg7 12.h3 Bxf3 13.Bxf3 Qa5 14.Kb1 e5 $1 15.d5 Nb6 $1 ( 15...cxd5 16.Bxd5 Rad8 17.Qe2 Nb6 18.Bb3 $15 ) 16.dxc6 bxc6 17.g4 ( 17.Rhe1 Nc4 18.Qd3 Qb4 19.b3 Rab8 20.Be2 Nb6 21.g4 Nfd5 22.Nxd5 cxd5 $19 ) 17...Nfd5 ( 17...Nc4 $2 18.Qd3 Qb4 19.b3 Rab8 20.g5 Nd7 ) 18.Bxd5 Rad8 19.Qe2 Nxd5 20.Qxe5+ f6 21.Qg3 Nxc3+ 22.Qxc3 Qxc3 23.bxc3 Rxd1+ 24.Rxd1 f5 $19 ) ( 9.Ne5 Be6 10.Bh6 Nbd7 $17 ) ( 9.Be2 Bf5 ( 9...Bg4 10.h3 Bxf3 11.Bxf3 Nbd7 12.Kb1 $15 ) ( 9...b5 10.Ne5 Nfd7 $5 11.Ng4 $15 ) 10.Bh6 Nbd7 11.h3 Qa5 12.g4 Be6 13.Bxg7 Kxg7 $17 ) 9...Bg4 ( 9...b5 $5 ) ( 9...Bf5 10.h3 b5 ) ( 9...Be6 10.Ng5 Bd5 11.Bd3 Nbd7 $15 ) 10.Be2 Nbd7 11.h3 Be6 ( 11...Bxf3 12.Bxf3 Nb6 ( 12...Qa5 $6 13.g4 $13 ) 13.Qe2 e6 14.h4 h6 $15 ) 12.Ng5 Bd5 13.Nxd5 cxd5 $17 * [/pgn]

[jdart]

Lots of games where White gets a kingside attack. But good defense seems to put Black on top.

Some analysis from the Arasan book:

[pgn] [Event "correspondence"] [Site "?"] [Date "2003.12.20"] [Round "?"] [White "Leisebein, Peter"] [Black "Borst, Johan"] [Result "1-0"] [ECO "D00"] [Annotator "Dart, J."] [PlyCount "30"] [EventDate "2003.??.??"] [EventType "corr"] 1. d4 Nf6 2. f3 $2 d5 3. e4 dxe4 4. Nc3 exf3 5. Nxf3 (5. Qxf3 g6 $1 (5... Qxd4 6. Be3 Qg4 (6... Qe5 7. O-O-O c6 $17) 7. Qf2 Qf5 8. Qd2 e5 9. O-O-O Bd6 10. h3 O-O 11. g4 Qe6 $17 {0-1 (73) Houdini 5.01 64-bit-Komodo 10.2 64-bit})) 5... g6 (5... e6 6. Bg5 Be7 7. Qd2 O-O 8. O-O-O c5 $1) (5... c6 6. Bc4 Bf5 7. O-O (7. Ne5 e6 8. O-O (8. g4 $2 Nfd7 $3) 8... Bg6 9. Bg5 Be7 10. Nxg6 hxg6 {0-1 (33) Helman,B (2110)-Trumpf,W (2437) ICCF 2007}) (7. Bg5 Nbd7 $1 8. Qe2 e6) 7... e6 8. Bd3 Bxd3 9. Qxd3 Nbd7 10. Bf4 Be7 $15 {1/2-1/2 (21) Aulaskari,P (2369) -Andersen,J (2105) ICCF email 2005}) (5... Bg4 6. h3 Bh5 7. g4 Bg6 8. Ne5 e6 9. Bg2 c6 10. h4 Bb4 11. O-O Nbd7 12. Qe2 (12. Nxg6 $2 hxg6 13. g5 Nh5) 12... Nxe5 13. dxe5 Bc5+ 14. Kh2 Nd5 15. h5 Qh4+ 16. Bh3 f5 17. Nxd5 exd5 18. Rf4 fxg4 19. Qxg4 {1/2-1/2 (19) Leisebein,P-Schiller,W DESC email 2004}) 6. Bc4 Bg7 7. O-O ( 7. Bg5 $5 O-O $15) 7... O-O 8. Qe1 Nc6 9. Qh4 Bg4 (9... Bf5 10. h3 $1 $17) 10. Ne2 Bf5 (10... Bxf3 $2 11. Rxf3 Na5 12. Bd3 $15 {1/2-1/2 (37) Hommeles, T-Bosman,M (2285) Netherlands 1992}) 11. a3 Bxc2 $2 (11... Ne4 $5 $17) 12. Bh6 Bxh6 (12... Bf5 13. Ng5 e6 14. Rad1 $11) 13. Qxh6 Ng4 14. Qh4 $2 (14. Qf4 $11) 14... h5 15. Rac1 Bf5 $2 (15... Be4 $17) 1-0 [/pgn]