♟ ChessInsights
Tournaments/4NCL Division 1 2025-2026/Openings

Openings — position clusters

Unlike a move-tree view, this groups games by the position actually reached at move 10 — different move orders that transpose to the same position land in the same cluster.

Cluster at move
3456810
Showing 50 of 377 clusters (capped at 50)·383 / 384 games reached move 10
Position at move 10
5games

Reached via

  • ×51.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Nb8 10.d4 Nbd7

Games

Position at move 10
2games

Reached via

  • ×21.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 c6 6.e3 h6 7.Bh4 Be7 8.Bd3 O-O 9.Bg3 Ne8 10.Qc2 Nd6

Games

Position at move 10
2games

Reached via

  • ×21.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Nd5 Be7 10.Bxf6 Bxf6

Games

Position at move 10
1game

Reached via

  • ×11.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 Nc6 6.Be3 Bg4 7.Be2 e6 8.h3 Bh5 9.O-O cxd4 10.cxd4 Be7

Games

Position at move 10
1game

Reached via

  • ×11.c4 b6 2.Nc3 e6 3.e4 Bb7 4.g3 f5 5.Bg2 Nf6 6.d3 fxe4 7.Nge2 Nc6 8.dxe4 Bc5 9.O-O O-O 10.h3 Ne5

Games

Position at move 10
1game

Reached via

  • ×11.c4 Nf6 2.Nc3 c5 3.Nf3 e6 4.g3 d5 5.cxd5 exd5 6.d4 Nc6 7.Bg2 Be7 8.O-O O-O 9.dxc5 Bxc5 10.a3 Re8

Games

Position at move 10
1game

Reached via

  • ×11.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 5.Ne2 Ba6 6.a3 Bxc3+ 7.Nxc3 d5 8.b3 O-O 9.Be2 c5 10.cxd5 Bxe2

Games

Position at move 10
1game

Reached via

  • ×11.e4 e6 2.d4 d5 3.Nd2 Be7 4.Ngf3 Nf6 5.e5 Nfd7 6.Bd3 c5 7.c3 Nc6 8.O-O a5 9.Re1 cxd4 10.cxd4 Qb6

Games

Position at move 10
1game

Reached via

  • ×11.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.Qa4 Bb7 6.Bg2 c5 7.dxc5 bxc5 8.O-O Be7 9.Nc3 O-O 10.Rd1 Qb6

Games

Position at move 10
1game

Reached via

  • ×11.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 b6 5.e4 Bb7 6.e5 Ne4 7.a3 Bxc3+ 8.bxc3 d6 9.Bd3 f5 10.exf6 Nxf6

Games

Position at move 10
1game

Reached via

  • ×11.e4 e6 2.d3 d5 3.Nd2 Nf6 4.Ngf3 Nc6 5.g3 dxe4 6.dxe4 Bc5 7.Bg2 O-O 8.O-O e5 9.h3 a5 10.a4 Re8

Games

Position at move 10
1game

Reached via

  • ×11.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e6 7.O-O Be7 8.f4 O-O 9.Be3 Nc6 10.a4 Qc7

Games

Position at move 10
1game

Reached via

  • ×11.d4 Nf6 2.c4 e6 3.Nc3 d5 4.cxd5 exd5 5.Bg5 Be7 6.e3 h6 7.Bh4 O-O 8.Bd3 c6 9.Nge2 Ne8 10.Bxe7 Qxe7

Games

Position at move 10
1game

Reached via

  • ×11.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 5.Ne2 Ne4 6.Qc2 Bb7 7.a3 Bxc3+ 8.Nxc3 Nxc3 9.Qxc3 Qf6 10.f3 Qh4+

Games

Position at move 10
1game

Reached via

  • ×11.d4 Nf6 2.Nf3 e6 3.c4 b6 4.g3 Ba6 5.b3 Bb4+ 6.Bd2 Be7 7.Nc3 d5 8.cxd5 exd5 9.Bg2 O-O 10.O-O Nbd7

Games

Position at move 10
1game

Reached via

  • ×11.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 dxc4 5.e4 b5 6.e5 Nd5 7.Nxb5 Nb6 8.Be2 Nc6 9.O-O Bb7 10.Be3 Qd7

Games

Position at move 10
1game

Reached via

  • ×11.e4 e6 2.d4 d5 3.Bd3 dxe4 4.Bxe4 Nf6 5.Bf3 c5 6.Ne2 Nc6 7.Be3 cxd4 8.Nxd4 Ne5 9.Nc3 Be7 10.Qe2 a6

Games

Position at move 10
1game

Reached via

  • ×11.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.O-O Be7 5.c4 c5 6.cxd5 Nxd5 7.Nc3 Nc6 8.d4 Nxc3 9.bxc3 O-O 10.e4 Qc7

Games

Position at move 10
1game

Reached via

  • ×11.e4 c5 2.b3 Nf6 3.e5 Nd5 4.Bb2 Nc6 5.Nf3 d6 6.Bb5 Bg4 7.h3 Bh5 8.Nc3 Nc7 9.Bxc6+ bxc6 10.O-O d5

Games

Position at move 10
1game

Reached via

  • ×11.e4 c5 2.Nf3 Nc6 3.g3 Nf6 4.d3 g6 5.Bg2 Bg7 6.O-O O-O 7.c3 d6 8.Re1 e5 9.a4 h6 10.Na3 Be6

Games

Position at move 10
1game

Reached via

  • ×11.e4 e6 2.d4 d5 3.Nd2 Be7 4.c3 c5 5.exd5 Qxd5 6.dxc5 Qxc5 7.Ne4 Qc7 8.Qg4 g6 9.Bf4 Qc6 10.Qf3 Nd7

Games

Position at move 10
1game

Reached via

  • ×11.d4 Nf6 2.c4 e6 3.g3 Bb4+ 4.Bd2 Be7 5.Bg2 d5 6.Nf3 O-O 7.O-O c6 8.Qb3 a5 9.a4 Na6 10.Nc3 Nb4

Games

Position at move 10
1game

Reached via

  • ×11.d4 Nf6 2.c4 e6 3.Nc3 d5 4.cxd5 exd5 5.Bg5 Be7 6.e3 h6 7.Bh4 O-O 8.Bd3 Re8 9.Nge2 c6 10.O-O Nh5

Games

Position at move 10
1game

Reached via

  • ×11.e4 e6 2.d4 d5 3.e5 c5 4.c3 Qb6 5.Nf3 Bd7 6.Be2 Bb5 7.Bxb5+ Qxb5 8.Na3 Qd7 9.dxc5 Bxc5 10.Nc2 Ne7

Games

Position at move 10
1game

Reached via

  • ×11.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Ne2 c6 6.a3 Ba5 7.b4 Bc7 8.Ng3 a5 9.Bb2 d5 10.Be2 Qe7

Games

Position at move 10
1game

Reached via

  • ×11.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 Nc6 7.Ngf3 f6 8.exf6 Nxf6 9.Qe2 cxd4 10.Nxd4 Nxd4

Games

Position at move 10
1game

Reached via

  • ×11.d4 f5 2.Nc3 Nf6 3.Bg5 d5 4.Bxf6 exf6 5.e3 Be6 6.g3 Nc6 7.Bg2 Qd7 8.Nge2 Bf7 9.a3 O-O-O 10.Nf4 Ne7

Games

Position at move 10
1game

Reached via

  • ×11.d4 Nf6 2.Bg5 c5 3.Bxf6 gxf6 4.d5 Qb6 5.Nd2 f5 6.Rb1 Bg7 7.e3 d6 8.Bd3 O-O 9.Nh3 e5 10.O-O Qd8

Games

Position at move 10
1game

Reached via

  • ×11.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Nc3 Bb4 5.Qb3 a5 6.Bg5 c5 7.e3 a4 8.Qc2 a3 9.Bxf6 axb2 10.Qxb2 Qxf6

Games

Position at move 10
1game

Reached via

  • ×11.d4 d5 2.Nf3 Nf6 3.Bg5 Nbd7 4.e3 g6 5.c4 c6 6.Nc3 Bg7 7.cxd5 cxd5 8.Bd3 O-O 9.O-O b6 10.a4 Bb7

Games

Position at move 10
1game

Reached via

  • ×11.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2 b6 5.a3 Bxd2+ 6.Qxd2 Bb7 7.e3 O-O 8.Be2 a5 9.b3 d6 10.Bb2 Nbd7

Games

Position at move 10
1game

Reached via

  • ×11.d4 Nf6 2.Nf3 e6 3.Bg5 d5 4.Nbd2 Nbd7 5.e3 c5 6.c3 Bd6 7.Bd3 Qc7 8.O-O O-O 9.Qe2 e5 10.dxe5 Bxe5

Games

Position at move 10
1game

Reached via

  • ×11.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.e5 d5 6.Bb5 Ne4 7.Nxd4 Bc5 8.Be3 Bd7 9.Bxc6 bxc6 10.Nd2 Qe7

Games

Position at move 10
1game

Reached via

  • ×11.e4 c5 2.Nf3 Nc6 3.Nc3 e5 4.Bc4 Be7 5.a4 d6 6.d3 Nf6 7.h3 h6 8.Nd2 Be6 9.Nf1 d5 10.exd5 Nxd5

Games

Position at move 10
1game

Reached via

  • ×11.e4 c6 2.d4 d5 3.e5 Bf5 4.Nf3 e6 5.Be2 Ne7 6.c3 h6 7.O-O Nd7 8.a4 a6 9.a5 Qc7 10.b4 O-O-O

Games

Position at move 10
1game

Reached via

  • ×11.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e6 7.Be3 Qc7 8.Qd2 b5 9.a3 Bb7 10.f3 Be7

Games

Position at move 10
1game

Reached via

  • ×11.e4 e5 2.Nf3 Nc6 3.Bc4 Be7 4.d4 exd4 5.Nxd4 d6 6.Nc3 Nf6 7.O-O O-O 8.Bf4 Nd7 9.Nd5 Nb6 10.Nxb6 axb6

Games

Position at move 10
1game

Reached via

  • ×11.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nbd2 c5 5.cxd5 exd5 6.g3 Nc6 7.Bg2 cxd4 8.Nb3 Bb4+ 9.Bd2 d3 10.e3 O-O

Games

Position at move 10
1game

Reached via

  • ×11.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5 5.Nc3 Nc6 6.Bf4 Bf5 7.e3 e6 8.Bb5 Nd7 9.Rc1 Be7 10.O-O g5

Games

Position at move 10
1game

Reached via

  • ×11.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.Nxc6 bxc6 9.O-O-O Be7 10.Bc4 Rb8

Games

Position at move 10
1game

Reached via

  • ×11.Nc3 d5 2.e4 e6 3.d3 c5 4.g3 Nc6 5.Bg2 Nf6 6.Nge2 Be7 7.O-O O-O 8.h3 dxe4 9.dxe4 Qb6 10.Bd2 Rd8

Games

Position at move 10
1game

Reached via

  • ×11.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 4.O-O Ng6 5.c3 a6 6.Ba4 d5 7.exd5 Qxd5 8.Bb3 Qd3 9.Bc2 Qd6 10.d4 exd4

Games

Position at move 10
1game

Reached via

  • ×11.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Be7 5.Bg2 O-O 6.O-O dxc4 7.Qc2 c6 8.Qxc4 b5 9.Qb3 Bb7 10.Rd1 Nbd7

Games

Position at move 10
1game

Reached via

  • ×11.e4 c5 2.Nc3 g6 3.f4 Bg7 4.Nf3 Nc6 5.a4 e6 6.e5 d5 7.d4 Nh6 8.Bd3 cxd4 9.Nb5 f6 10.Nd6+ Kf8

Games

Position at move 10
1game

Reached via

  • ×11.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 e5 6.d4 cxd4 7.cxd4 exd4 8.Bf4 a6 9.Bc4 d6 10.Qb3 Qd7

Games

Position at move 10
1game

Reached via

  • ×11.e4 e6 2.d4 d5 3.Nd2 Be7 4.Ngf3 Nf6 5.e5 Nfd7 6.Bd3 c5 7.c3 Nc6 8.O-O a5 9.a4 cxd4 10.cxd4 Nb4

Games

Position at move 10
1game

Reached via

  • ×11.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.d4 O-O 6.h3 e5 7.d5 a5 8.g4 Na6 9.Be3 Nc5 10.Nd2 b6

Games

Position at move 10
1game

Reached via

  • ×11.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7 9.O-O-O Nbd7 10.g4 h6

Games

Position at move 10
1game

Reached via

  • ×11.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.e4 Bc5 5.Nxe5 Nxe5 6.d4 Bb4 7.dxe5 Nxe4 8.Qf3 Qh4 9.a3 Bxc3+ 10.bxc3 Nc5

Games

Position at move 10
1game

Reached via

  • ×11.Nf3 Nf6 2.g3 d5 3.Bg2 c5 4.O-O Nc6 5.d4 Bf5 6.dxc5 e5 7.c4 d4 8.e3 d3 9.Nc3 Bxc5 10.a3 a5

Games