1985 Szachy
a) 1.Sc1! zz 1...Kc1 ..Ke1 2.Qa1#,Qg1#
b=a) after key
1.Qd3! zz 1...Kc1 ..Ke1 2.Qc2#,Qe2#
c=b) after key
1.Qd4! zz 1...Kc1 ..Ke1 2.Qa1#,Qg1#
white to play, changed mates Z-22-24
mutate 2200, perpetuum mobile, miniature
erroneously published only position a)
pos. b) anticip. Kvicala, Dt.Schachzeitung 1865
2# a,b,c 4+3
1985 Szachy
4. Commendation
1.Rg3! ~ 2.Qg4#
1...Kd4 ..Kf4 2.Qc4#,Qg4#
1.Kg6? ~ 2.Qc4# 1...Kf4 2.Qf5# 1...Kd4!
1.Ra3?~ 2.Qg4# 1...Kd4 2.Qc4# 1...Kf4!
Dombrovskis, miniature
2# 4+3
1985 Biuletyn OZSzach. Czestochowa
4. Commendation
1..Qf6..Qg5..Qh5..Qh7 2.Qf6#,Sg4#,Sh5#,Sfh7#
a) 1.Qe3! ~ 2.Sf7# ..abcd 2.Qh3#,Qg5#,Sf7#,
Sgh7# 1.Qb1? ..abcd 2.Qh7# 1...e4!
b) Pe5>h4 1.Qb1! ~ 2.Qg6# ..abcd 2.Qh7#
1.Qe3? ..bcd 2.Qg5#,Qh5#,Qh7# 1...Qf6!
Zagoruiko 4x3, Z-34-49 & 3x3, Z-33-37
2# a,b 8+4
1985 Biuletyn OZSzach. Czestochowa
1.Qb2? zz 1...h2 2.Qh2# 1...Kh5!
1.Qb1? zz 1...Kh5 2.Qh7# 1...h2!
1.Qh2? zz 1...Kh5!
1.Qh7? zz 1...h2!
1.Qc7! zz 1...h2 ..Kh5 2.Qh2#,Qh7#
Hannelius, Banny, shift of focus, miniature
2# 4+3
1985 Biuletyn OZSzach. Czestochowa
1.Ba7! Kh6 2.Qb6#
1.Rf4? Kh6 2.Rf6# 1...Kg5!
Bristol, changed mate, miniature
twin b) rows 7+8 = 1+2, see next problem
2# a) 6+1
1985 Biuletyn OZSzach. Czestochowa
1.g7! Kh7 2.g8S#
1.Rf6? Kh8 2.Rf8# 1...Kg7!
white under-promotion, miniature
twin a) rows 1+2 = 7+8, see preview problem
2# b) 6+1
1985 Biuletyn OZSzach. Czestochowa
1.Sh5! zz
1...Kf5 2.Bf6 gf6 3.Sg7# 2...Ke6 3.Sd4#
1...Kh5 2.Bf2 gf2 3.g4#
1.Bf6? zz
1...Kf5 2.Sh5 gf6 3.Sg7# 2...Ke6 3.Sd4#
1...gf6 2.g7 f5 3.g8Q# 1...h5!
Salazar, half-battery
3# 10+4
1985v Biuletyn OZSzach. Czestochowa
Commendation
1.Rc1 Kg4 2.Rg1 Kf5 3.Sh2 gh2 4.g4#
2...Kh5 3.Sf2 gf2 4.g4#
Set: 1...Kg4 2.K~3 Kf5 Rf4# 2...Kh5 3.Rh4#
1.Rc8? Kg4 2.Rf8 Kh5 3.Rf4=
white to play, ambush
4# 10+7
1985 Razem
1.Sd3! ~ 2.Sh6#
1...d6 ..Bd6 ..Sd6 2.Qf2#,Qa2#,Se5#
Gamage, pickabish
2# 8+8
1985 A feladvany
1...Bb8 ..de6 ..ef6 2.Qb8#,Qd8#,Qf8#
1.Qh5? ~ 2.Qe5#,Qd5#,Qc5#
1...Bb8 ..de6 ..ef6 2.Qe5#,Qd5#,Qc5# 1..g5!
1.Qh3! ~ 2.Qg3#,Qd3#,Qa3#
1...Bb8 ..de6 ..ef6 2.Qg3#,Qd3#,Qa3#
Zagoruiko 3x3, Z-33-39
Karlström-Fleck without total defences
2# 10+7
1985 Razem
1...Bf6+ ..Bf8+ 2.Sf6#,Sef8#
1.Qb5? ~ 2.Sd~#
1...Bf6+ ..Bf8+ 2.Sf6#,Sdf8# 1...fe6!
1.Qc5! ~ 2.Qe7#
1...Bf6+,Bd6,Bc5 2.Sf6#
1...Bf8+,Bd8,Bg5,Bh4 2.Qf8# 1...f6 2.Qh5#
changed mates 3x1, Z-31-13
2# 6+4
1985 Biuletyn OZSzach. Czestochowa
1...Kd6 ..Kf6 2.Bf4#,Bd4#
1.Se4! zz
1...Kd5 ..Kf5 2.Qb5#,Qh5#
white to play 0022, radical change
2# 6+4