A truly original tactic!
Chess is Timeless
There were hundreds of chess magazines published in virtually every modern language. Opening books had already been known for decades. More than 95% of today’s endgame theory was already worked out!
International chess was quickly developing, the London 1883 International Tournament tournament being the first super-tournament of the era! Already the ‘problem’ of the draw in chess was a hotly discussed item….It must have been interesting to have been alive at that time!
Black is helpless: if Black tries to capture the White Bishop by 30…Nxd4 then White changes gears and mates starting with 31.Rxh7+! QxR 32.Qf6+! etc. Or 30…Ne7 is only slightly better: 31.Rxh7+! QxR 32.Qf6+ Rg7 33.BxQ KxQ 34.Qh4+ Kg8 and now the mundane 35.Rg1 wins easily enough with technique.Also inadequate is 30…Rdd7: 31.Rxh7+! QxR 32.Qf6+ Qg7 33.Qh4+! Qh7 34.BxQ and 35.Qf6+ winning the Knight.