1 Baroque Berolina Bicolour Brotherhood
2 For Baroque (and Fugue and...) --> maybe a dedicated parent class ?
4 Go game with option oneColor
7 Dark Racing Kings ? Checkered-Teleport ?
10 Otage, Emergo, Pacosako : fonction "buildPiece(arg1, arg2)" returns HTML element with 2 SVG or SVG + number
11 ==> plus simple : deux classes, images superposées.