(Werner Speckmann - Diagramme und Figuren, 1967)
1.Kc3! ~
2.Qb4#
2.Qa7#
1...Ka5 2.Qa7#
1...b4+ 2.Qxb4#
Date added: 15/5/2021
(John Ormerod Scarlett Thursby - Seventy Five Chess Problems, 1883)
1.Qg1! zz
1...Kd5/Kxd6 2.Qxc5#
1...Kf4 2.Qg3#
1...Kf6 2.Qg7#
1...Ncd5/Ne8/Nb5/Nxa6/Nca8/Nc4/Nc8/Nbd5/Na4/Nba8 2.Qg5#
1...cxb4/c4 2.Qd4#
Date added: 1/6/2021
(Jozef Klemensiewic - La Stratégie, Jan 1926)
1.Ne2! ~ 2.Rh2#
1...Nf2 2.Rg3#
1...Ne3 2.Rf4#
1...Kxe4 2.Rg3#
Date added: 1/6/2021
(Godfrey F. Heathcote - Revue d'Échecs 1st Prize, 1904)
1.Qa6! ~ 2.Rd1#
1...Ke1 2.Qa1#
1...e1=Q (N, R) 2.Rf3#
1...e1=B
2.Rf3#
2.Re3#
1...d5+ 2.Bc5#
1...Re4+ 2.Bd4#
1...Rb7+ 2.Bb6#
Date added: 1/6/2021
(Ernest Clement Mortimer - The Chess Amateur, Feb 1922)
1.Rb3! Ka6 2.Ra3#
Date added: 2/6/2021
(Rosario Notaro - Scacco!, 1977)
1.Rf8! zz
1...Rf5/Re6/Rd6/Rc6/Rb6/Ra6 2.Rxf5#
1...Rf4/Rf3/Rf2/Rf1/Rf7/Rxf8/Rg6 2.Bg6#
Date added: 2/6/2021
(Walter Gleave - Bristol Mercury 1st Prize, 1889 )
1. Kd1! waiting
1. ... Rxc6 2. Nxc6#
1. ... Rd7/d8/g6 2. Ne(x)g6#
1. ... Re6 2. Nd7#
1. ... Rf6 2. Re3#
1. ... Ng8/f7/f5/g4 2. R(x)f5#
1. ... d4 2. Qe1#
1. ... g4 2. Qf4#
Date added: 2/6/2021
(William Alexander Beers - The Atlanta Journal, 14 Sep 1934)
1.Na5! ~ 2.Rc4#
1...Qd4 2.Qxd4#
1...Rb4 2.Nxd3#
1...Rc3 2.Nxb7#
1...Nb4 2.Bb6#
1...Nc3 2.Nxd3#
1...Ne3 2.Qd4#
1...Nf4 2.Qxg1#
1...Nf6 2.Qxf8#
1...Ne7 2.Bd6#
1...Nxc7 2.Qxc7#
1...Nb6 2.Nxb7#
1...b5
2.Rc6#
2.Nb7#
Date added: 15/5/2021
(Godfrey F. Heathcote - The English Mechanic and World of Science, 1890-1891 1st Prize, 7 Nov 1890)
1.Be4! ~ 2.Qd5#
1...Bxe4 2.f4#
1...Rxe4 2.Rxa5#
1...Rd4 2.Qe7#
1...Kxe4 2.Re3#
Date added: 2/6/2021
(Otto Georg Edgar Dehler - Deutsche Schachzeitung, 1925)
1.Kc6! zz
1...Kd8 2.Rg8#
Date added: 3/6/2021
(Oleksandr Kuprin - 20th TT Problemist of Ukraine Comm., Nov 2017)
1.Qd4! ~
2.Qa1#
2.Qg1#
1...Kc1 2.Qa1#
1...Ke1 2.Qg1#
Date added: 3/6/2021
(Gurusisya Chess Academy, 2020)
1. Nf7!+
1. ... Kh7 2. Bxd3#
1. Ng7! waiting
1. ... d2 2. Nf7#
1. Nf6! ad lib 2. Nf7#
1. Nf4! ad lib 2. Ng6#
1. Ng3! waiting
1. ... d2 2. Nf7#
Date added: 3/6/2021