Tournaments/European Individual Chess Championship 2026 | Boards 1-66/Openings

Openings — position clusters

Unlike a move-tree view, this groups games by the position actually reached at move 4 — different move orders that transpose to the same position land in the same cluster.

Cluster at move

3 4 5 6 8 10

Showing 50 of 343 clusters (capped at 50)·724 / 726 games reached move 4

41games

Reached via

×411.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6

Games

Reached via

×151.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6
×21.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6

Reached via

×41.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 c6
×41.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Nc3 c6
×21.Nf3 d5 2.d4 Nf6 3.c4 e6 4.Nc3 c6
+ 4 other orders

Reached via

×41.d4 Nf6 2.c4 e6 3.Nc3 d5 4.cxd5 exd5
×31.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5
×31.c4 e6 2.Nc3 d5 3.d4 Nf6 4.cxd5 exd5
+ 1 other order

Reached via

×41.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Nc3 Be7
×21.d4 Nf6 2.Nf3 d5 3.c4 e6 4.Nc3 Be7
×21.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Be7
+ 1 other order

Reached via

×71.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Bb4
×11.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 d5
×11.d4 Nf6 2.Nf3 d5 3.c4 e6 4.Nc3 Bb4

Reached via

×31.Nf3 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7
×11.Nf3 d5 2.c4 e6 3.g3 Nf6 4.Bg2 Be7
×11.c4 Nf6 2.Nf3 e6 3.g3 d5 4.Bg2 Be7
+ 3 other orders

Reached via

×61.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.O-O Be7
×11.Nf3 Nf6 2.g3 d5 3.Bg2 e6 4.O-O Be7

Reached via

×41.d4 Nf6 2.c4 e6 3.Nf3 d5 4.g3 Bb4+
×21.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Bb4+

Reached via

×21.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 h6
×21.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Nc3 h6
×11.d4 d5 2.c4 e6 3.Nc3 h6 4.Nf3 Nf6
+ 1 other order

Reached via

×21.d4 Nf6 2.c4 e6 3.Nf3 d5 4.g3 Be7
×11.d4 e6 2.c4 d5 3.Nf3 Nf6 4.g3 Be7
×11.Nf3 d5 2.d4 Nf6 3.c4 e6 4.g3 Be7
+ 2 other orders

Reached via

×31.d4 d5 2.c4 e6 3.Nc3 Be7 4.cxd5 exd5
×21.c4 e6 2.Nc3 d5 3.d4 Be7 4.cxd5 exd5

Reached via

×21.e4 d6 2.d4 Nf6 3.Nc3 e5 4.Nf3 Nbd7
×21.d4 d6 2.e4 Nf6 3.Nc3 e5 4.Nf3 Nbd7
×11.e4 e5 2.Nf3 Nf6 3.Nc3 d6 4.d4 Nbd7

Reached via

×41.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Nbd7
×11.d4 Nf6 2.Nf3 d5 3.c4 e6 4.Nc3 Nbd7

Reached via

×41.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6
×11.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nf6

Reached via

×41.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 dxc4
×11.Nf3 Nf6 2.c4 e6 3.Nc3 d5 4.d4 dxc4

Reached via

×41.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 Bc5
×11.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3 Nf6

Reached via

×11.c4 e6 2.g3 d5 3.Bg2 Nf6 4.Nf3 d4
×11.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 d4
×11.c4 e6 2.g3 Nf6 3.Bg2 d5 4.Nf3 d4
+ 1 other order

Reached via

×31.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6
×11.d4 d5 2.c4 dxc4 3.Nf3 e6 4.e3 Nf6

Reached via

×21.c4 e6 2.Nf3 d5 3.g3 d4 4.Bg2 Nc6
×11.c4 e6 2.g3 d5 3.Bg2 Nc6 4.Nf3 d4
×11.c4 e6 2.g3 d5 3.Bg2 d4 4.Nf3 Nc6

Reached via

×11.d4 Nf6 2.Nf3 d5 3.Bf4 c5 4.e3 e6
×11.d4 Nf6 2.Nf3 d5 3.Bf4 e6 4.e3 c5
×11.d4 Nf6 2.Nf3 e6 3.Bf4 d5 4.e3 c5

Reached via

×21.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7
×11.d4 Nf6 2.Nf3 e6 3.c4 b6 4.g3 Bb7

Reached via

×21.e4 c5 2.Nf3 Nc6 3.Nc3 e6 4.d4 cxd4
×11.e4 c5 2.Nc3 e6 3.Nf3 Nc6 4.d4 cxd4

Reached via

×11.d4 d6 2.Nf3 Nf6 3.c4 g6 4.Nc3 Bg7
×11.Nf3 d6 2.d4 Nf6 3.c4 g6 4.Nc3 Bg7
×11.d4 Nf6 2.c4 d6 3.Nf3 g6 4.Nc3 Bg7

Reached via

×11.Nf3 Nf6 2.g3 d5 3.Bg2 c5 4.O-O e6
×11.Nf3 d5 2.g3 Nf6 3.Bg2 c5 4.O-O e6
×11.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.O-O c5

Reached via

×21.e4 c5 2.Nf3 d6 3.d4 Nf6 4.Nc3 cxd4
×11.e4 c5 2.Nf3 d6 3.Nc3 Nf6 4.d4 cxd4

Reached via

×11.d4 Nf6 2.c4 e6 3.g3 d5 4.Nf3 dxc4
×11.d4 Nf6 2.c4 e6 3.Nf3 d5 4.g3 dxc4
×11.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4

Reached via

×21.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Bg5 Be7
×11.c4 e6 2.Nc3 d5 3.d4 Nf6 4.Bg5 Be7