Plug type K

Two round pins with a half-round earth pin below. Danish, also on the Faroe Islands and Greenland. The Europlug fits; since 2011 Danish sockets often take the Schuko as well.

Standard: DS 60884-2-D1
Earthed: yes
At most: 16 A

Thin two-pin plugs (chargers, the Europlug) fit; a thick earthed plug (a hairdryer, a laptop's) does not: take an adapter for those.

Countries with plug type K (9)

Bangladesh A C D G K 220 V, 50 Hz
Denmark C E F K 230 V, 50 Hz
Faroe Islands C E F K 230 V, 50 Hz
Greenland C E F K 230 V, 50 Hz
Guinea C F K 220 V, 50 Hz
Madagascar C D E J K 220 V, 50 Hz
Maldives C D G J K L 230 V, 50 Hz
Senegal C D E K 230 V, 50 Hz
St. Vincent & Grenadines A C E G I K 230 V, 50 Hz

Source: IEC World Plugs: https://www.iec.ch/world-plugs. Drawing: rondreis.expert, public domain.