Double Check achievement in Chess Ultra

How to unlock the Double Check achievement in Chess Ultra: Deliver a check by two pieces at the same time. This achievement is worth 10 Gamerscore.

Chess: Garry Kasparov calls April's world title match 'amputated event', Chess

Chess Ultra Academy game pack on Steam

Steam Community :: Guide :: Chess Ultra 100% Achievement Guide

The 20+ Best Chess Games To Play On Steam

Chess - Wikipedia

Chess: Carlsen secures record but draws threaten chances of victory at Wijk, Magnus Carlsen

Chess Ultra - Double Check

Chess Champion achievement in Chess Ultra

Chess Ultra Achievements

Chess Ultra on Steam

The master strategist: How Tidjane Thiam brought a revolution to Credit Suisse