Chess Opening

Other & Irregular Openings

344 analyzed games in the Other & Irregular Openings, each with engine evaluations that pinpoint the critical moments and best moves.

344 games 3 variations Most played:

Results in 344 games

White wins 49% Draws 7% Black wins 44%

Main variations

316 Undefined 27 Lion Defense 4.Nf3 1

Notable games

AtlasVault42 1772
vs
RogelGWAPO123 2491
0–1 2026·07·11
Review
RogelGWAPO123 2491
vs
AtlasVault42 1772
1–0 2026·07·11
Review
AtlasVault42 1854
vs
slurpeee 2566
½–½ 2026·07·10
Review
slurpeee 2566
vs
AtlasVault42 1854
1–0 2026·07·10
Review
AtlasVault42 1772
vs
SunWukong2021 1948
1–0 2026·07·09
Review
SunWukong2021 1948
vs
AtlasVault42 1772
1–0 2026·07·09
Review
AtlasVault42 1844
vs
lukeser 1807
1–0 2026·07·08
Review
Construccion 1706
vs
AtlasVault42 1860
1–0 2026·07·08
Review
AtlasVault42 1856
vs
May_be_genius 1586
1–0 2026·07·08
Review
jcapo 1577
vs
AtlasVault42 1877
1–0 2026·07·08
Review
AtlasVault42 1872
vs
mostafa_TM 1629
1–0 2026·07·08
Review
Michmich7 1557
vs
AtlasVault42 1868
0–1 2026·07·08
Review
AtlasVault42 1880
vs
farhad_ir14 1890
0–1 2026·07·04
Review
AtlasVault42 1868
vs
gibranalaffitao 1875
1–0 2026·07·04
Review
AtlasVault42 1880
vs
Bi5Daddy 1923
0–1 2026·07·04
Review
Lunatik22 1899
vs
AtlasVault42 1893
1–0 2026·07·04
Review
AtlasVault42 1878
vs
joshua_sadurangam 1890
1–0 2026·07·04
Review
Kryptonflash 1900
vs
AtlasVault42 1878
0–1 2026·07·04
Review
mrvrankfisser 1901
vs
AtlasVault42 1877
½–½ 2026·07·02
Review
AtlasVault42 1877
vs
Ed_fin 1900
1–0 2026·07·02
Review
Ed_win22 1030
vs
carlosmartinezt1 1002
0–1 2026·06·30
Review
AtlasVault42 1772
vs
Devlin666 2052
1–0 2026·06·28
Review
Devlin666 2052
vs
AtlasVault42 1772
1–0 2026·06·28
Review
AtlasVault42 1772
vs
Loisse144 1899
1–0 2026·06·28
Review
Loisse144 1899
vs
AtlasVault42 1772
½–½ 2026·06·28
Review

Study the Other & Irregular Openings move by move

Open every game in the review board with engine evaluations, or import your own.

Explore in the app
Caro-Kann Defense Sicilian Defense French Defense Italian Game Ruy López (Spanish) Scotch Game Philidor Defense Petrov's Defense Scandinavian Defense Pirc Defense Modern Defense Alekhine's Defense Nimzowitsch Defense Owen's Defense All openings →