Wiki states that 229 is a regular, a long, a twin (with 227), a cousin and a sexy prime. 229 is also a prime triplet (with 227 and 233) while a sexy prime is a pair (p, p + 6) of prime numbers that differ by six. As you'll see from Interzone 229's cover it has a prime number (5) of stories by prime authors; Toby Litt, Jim Hawkins, Paul Evanby, Antony Mann & Rochita Loenen-Ruiz. Jim Hawkins' title 'Orchestral Manoeuvres in the Dark Matter' is one that makes me want to read it now. Toby Litt's 'The Melancholy' has a female engineer working on a robot appliance that she sees as having the equivalent of severe depression. She is convinced she's not foisting her own fragile emotional state onto her work but when the robot goes missing beneath the icy surface of Jupiter's moon, Europa, she has to speak to someone about her suspicions. Did the appliance commit suicide? Warwick Fraser-Coombe's cover is part 4 of 6 in his Playground (Hide and Seek) tableau plus all the usual features.