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Square Colour
Square Colour
Light or dark? A square name appears — tap the matching colour as fast as you can.
Board Section
Full Board
Bottom Half (1–4)
Top Half (5–8)
Q1 (a–d, 1–4)
Q2 (e–h, 1–4)
Q3 (a–d, 5–8)
Q4 (e–h, 5–8)
Practise (20 squares)
Rated round →