Guardian readers can enter the Winton British Solving Championship, a free competition for UK residents. The first stage involves solving a chess puzzle, with deadlines of 31 July 2026. Top players advance to a final at Harrow school in February 2027.
Great Britain and Northern Ireland's mixed 4x400m team won bronze at the World Athletics Relays in Botswana, finishing in 3:08.24 behind USA and Jamaica. The quartet of Alex Haydock-Wilson, Lina Nielsen, Jake Minshull and Yemi Mary John qualified for the inaugural World Athletics Ultimate Championships in Budapest. Four other GB teams also secured automatic qualification for the 2027 World Championships in Beijing.
Great Britain and Northern Ireland's mixed 4x400m team won bronze at the World Athletics Relays in Botswana, finishing in 3:08.24 behind USA and Jamaica. The podium finish secures qualification for the inaugural World Athletics Ultimate Championships in Budapest in September. Four other GB teams - men's 4x100m, women's 4x400m, mixed 4x100m and women's 4x100m - also qualified automatically for the 2027 World Championships in Beijing.
