Solution:
1...Nf5[a]/Ng6[b]/Ng8[b]/Nd5[b]/Nc6[b]/Nc8[b] 2.Bd5#[A]
1...Nf1[c]/Nf3[d]/Nc4[e]/Nb1[c]/Nb3[f] 2.Bb1#[B]
1...exf4[g] 2.Nc5#[C]
1.Bc5? zz
1...Nf5[a]/Ng6[b]/Ng8[b]/Nd5[b]/Nc6[b]/Nc8[b] 2.Bd5#[A]
1...Nf1[c]/Nf3[d]/Nc4[e]/Nb1[c]/Nb3[f] 2.Bb1#[B]
but 1...exf4[g]!
16 tries skipped1.Nd4?? zz
1...Nf5[a]/Ng6[b]/Ng8[b]/Nd5[b]/Nc6[b]/Nc8[b] 2.Qxf5#[E]
1...Nf1[c]/Nf3[d]/Nc4[e]/Nb1[c]/Nb3[f] 2.Qf3#[D]
1...exf4[g] 2.Qe2#[F]
1...Kxf4 2.Qh4#
but 1...exd4!
1.Kh1?? zz
1...Nf5[a]/Ng6[b]/Ng8[b]/Nd5[b]/Nc6[b]/Nc8[b] 2.Bd5#[A]
1...Nf1[c]/Nf3[d]/Nc4[e]/Nb1[c]/Nb3[f] 2.Bb1#[B]
1...exf4[g] 2.Nc5#[C]
but 1...g2+!
1.Kh3?? zz
1...Nf5[a]/Ng6[b]/Ng8[b]/Nd5[b]/Nc6[b]/Nc8[b] 2.Bd5#[A]
1...Nf1[c]/Nf3[d]/Nc4[e]/Nb1[c]/Nb3[f] 2.Bb1#[B]
1...exf4[g] 2.Nc5#[C]
but 1...g2!
1.Bf2?? zz
1...Nf5[a]/Ng6[b]/Ng8[b]/Nd5[b]/Nc6[b]/Nc8[b] 2.Bd5#[A]
1...Nf1[c]/Nf3[d]/Nc4[e]/Nb1[c]/Nb3[f] 2.Bb1#[B]
1...exf4[g] 2.Nc5#[C]
but 1...gxf2!
1.Bb6?? zz
1...Nf5[a]/Ng6[b]/Ng8[b]/Nd5[b]/Nc6[b]/Nc8[b] 2.Bd5#[A]
1...Nf1[c]/Nf3[d]/Nc4[e]/Nb1[c]/Nb3[f] 2.Bb1#[B]
but 1...exf4[g]!
1.Ba7?? zz
1...Nf5[a]/Ng6[b]/Ng8[b]/Nd5[b]/Nc6[b]/Nc8[b] 2.Bd5#[A]
1...Nf1[c]/Nf3[d]/Nc4[e]/Nb1[c]/Nb3[f] 2.Bb1#[B]
but 1...exf4[g]!
1.Qg5?? (2.Nc5#[C])
1...Nb3[f] 2.Bb1#[B]
but 1...hxg5!
1.Qf5+[E]??
1...Nxf5[a] 2.Bd5#[A]
but 1...Kxf5!
1.Qg4?? (2.Nc5#[C])
1...Nb3[f] 2.Bb1#[B]
but 1...exf4[g]!
1.Qf3+[D]??
1...Nxf3[d] 2.Bb1#[B]
but 1...Kf5!
1.Qf7?? (2.Nc5#[C])
1...Nf5[a] 2.Bd5#[A]/Qb7#
1...Nb3[f] 2.Bb1#[B]
but 1...exf4[g]!
1.Nh3?? (2.Nc5#[C])
1...Nc4[e]/Nb3[f] 2.Qf3#[D]
but 1...Kd3!
1.Ne2?? (2.Nc5#[C])
1...Nc4[e]/Nb3[f] 2.Qf3#[D]
but 1...Kd3!
1.Nd3?? (2.Nec5#/Ndc5#)
1...Nc4[e]/Nb3[f] 2.Qf3#[D]
but 1...Kxd3!
1.Bb3?? (2.Bc2#)
but 1...Nxb3[f]!
1.Bc4?? (2.Bd3#)
1...exf4[g] 2.Nc5#[C]
but 1...Nxc4[e]!
1.Ng7! zz
1...Nf5[a]/Ng6[b]/Ng8[b]/Nd5[b]/Nc6[b]/Nc8[b] 2.Qxf5#[E]
1...Nf1[c]/Nf3[d]/Nc4[e]/Nb1[c]/Nb3[f] 2.Qf3#[D]
1...exf4[g] 2.Qe2#[F]
1...Kxf4 2.Qh4#
-
Eduardo Sadier Twomovers Collection (pgn)
[Event "?"]
[Site "Chess Amateur 1919"]
[Date "1919.??.??"]
[Round "?"]
[White "BOOTH David"]
[Black " #2"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/4n2p/4N2p/4p2Q/4kN2/6p1/B2n2K1/6B1 w - - 0 1"]
1. Ng7 1-0
-
Eduardo Sadier Twomovers Collection (pgn)
[Event "?"]
[Site "Praca 1991"]
[Date "1991.??.??"]
[Round "?"]
[White "GODBOUT Alain J."]
[Black " #2"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/4n2p/4N2p/4p2Q/4kN2/6p1/B2n2K1/6B1 w - - 0 1"]
1. Ng7 1-0
-
Problemiste PBM Collections (pbm2py)
Author 31F. D. Booth, Jr.
Origin Chess Amateur 1919
Remark text: 1... Sd~ 2.Bb1#
Remark text: 1... Se~ 2.Bd5#
Remark text: 1... ef4 2.Sc5#
Remark text: 1.Sg7! (~)
Remark text: 1... Sd~ 2.Qf3#
Remark text: 1... Se~ 2.Qf5#
Remark text: 1... ef4 2.Qe2#
Remark text: 1... Kf4: 2.Qh4#
Remark text: [Keywords]
Remark text: i-d-031. the changed-mate waiter. 1
Remark file://SIMPLE2.PBM/186
Stipulation #2
Forsyth 8/4s2p/4S2p/4p2Q/4kS2/6p1/B2s2K1/6B1
-
Leo Mano Forsyth Collection (forsyth)
[Event "#2"]
[White "BOOTH, David Jr"]
[Site "Chess Amateur 1919"]
[ECO "s2m31f"]
8/4n2p/4N2p/4p2Q/4kN2/6p1/B2n2K1/6B1
-
Leo Mano Forsyth Collection (forsyth)
[Event "#2"]
[White "GODBOUT, Alain J."]
[Site "Praca 1991"]
[ECO "goda9111"]
8/4n2p/4N2p/4p2Q/4kN2/6p1/B2n2K1/6B1
-
Leo Mano Forsyth Collection (forsyth)
[White "31F. D. Booth, Jr. Chess Amateur 1919"]
[Event "#2"]
8/4n2p/4N2p/4p2Q/4kN2/6p1/B2n2K1/6B1
-
Leo Mano Forsyth Collection (forsyth)
[Event "#2"]
[White "31F. D. Booth, Jr."]
[Site "Chess Amateur 1919"]
[Comm1 "1... Sd~ 2.Bb1# 1... Se~ 2.Bd5# 1... ef4 2.Sc5# 1.Sg7! (~) 1... Sd~ 2.Qf3# 1... Se~ 2"]
8/4n2p/4N2p/4p2Q/4kN2/6p1/B2n2K1/6B1
-
The Meson by Brian Stephenson (weblink)
http://www.bstephen.me.uk/cgi-bin/meson_display.pl?pid=21448
-
Gabriel Török Twomovers Collection (csv)
"BOOTH DAVID";"THE CHESS AMATEUR";1919;;"2x";"Jg7";"g2";"h5";;;"e6";"f4";"a2";"g1";;;;;;;;;"e4";;;;"d2";"e7";;;"e5";"g3";"h6";"h7";;;;
-
Gabriel Török Twomovers Collection (csv)
"GODBOUT ALAIN J.";"PRÁCA";1991;;"2x";"Jg7";"g2";"h5";;;"e6";"f4";"a2";"g1";;;;;;;;;"e4";;;;"d2";"e7";;;"e5";"g3";"h6";"h7";;;;