Theme: At least two thematic variations with mutual interference/obstruction between black king and black line-mover on the same square.
Judge: Marjan Kovacevic
Sinisa Perunicic 1.pl. LP 1/1999
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1... Bb3,Bb5,Kb3,Kb5,c5 2.Qc6:,Qe6,Qe6,Qc6:,Qe6#
1.Ba5! (~)
1... Bb3,Bb5,Kb3,Kb5,c5 2.Sa3,Sd2,Qc2:,Qd5,Sd2#
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Miodrag Radomirovic 2.pl. LP 1/1999
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1... Qf4,Qd4,Kd4,Kf4 2.Rd5:,Qg5:,Rd5:,Qh2#
1.Se4! ~ 2.Qf6#
1... Qf4,Kd4,Kf4 2.Bc3,Sc6,Qg5:#
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Miomir Nedeljkovic 3.pl. LP 1/1999
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1... Kd8,Rd8 2.b8Q,Sd5:#
1.Sf5! ~ 2.Qd6:#
1... Kd8,Rd7,Re6:,Rd8 2.Qc8,Qd7:,b8Q,Rc1#
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Miroslav Suboric 4.pl. LP 1/1999
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1... Qd5,Kd5 2.Bh5,Be6:#
1.Qf6! ~ 2.Qe5#
1... Qd5,Kd5 2.Qf4,Qe6:#
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Nebojsa Joksimovic 5.pl. LP 1/1999
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1.Bf4:? ~ 2.Qd2#, 1... Bc2!
1... Kd3,Bd3 2.Qe3,Be5#
1.Ba7! ~ 2.Qd4#
1... Kd3,Bd3 2.Qc2,Bd4#
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Miroslav Subotic 6.pl. LP 1/1999
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1.Be7! (~)
1... Kh6:,Kg8,Qg8,Qf8,Qa8 2.Qg5,Qf8,Qf6,Qf8:,Qh7:#
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Branislav Djurasevic 7.pl. LP 1/1999
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1.Sed3? (~), 1... d5!
1... Kd5,Kf5,Bd5,Bf5,cd3 2.Qg2,Qg4:,Qg4:,Qg2,Qd3:#
1.Sf3! (~)
1... Kd5,Kf5,Bd5,Bf5,gf3,d5 2.Qc4:,Qc2,Qc2,Qc4:,Qf3:,Qc2#
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Theodor Tauber 8.pl. LP 1/1999
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1.c7? ~ 2.Qd6#, 1... Qh2!
1... Qe5,Ke5 2.Qc6,Qe6:#
1.b4! ~ 2.Qc5#
1... Qc4,Kc4 2.Qd8,Qb5:#
See judge's version
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Miodrag Mladenovic 9.pl. LP 1/1999
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1.Qf3! ~ 2.Qf6:#
1... Re6,Rg6,Ke6,Kg6,f5 2.gh8S,ed8S,e8Q,g8Q,Qf5:#
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Radomir Nikirovic 10.pl. LP 1/1999
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1.Qf4! (~)
1... Bd2,Rb3,Kd2,Kb3,Kd3,e2,b3 2.Qc4,Qd4,Qe3:,Qb4:,Qd4,Qc4,Qd4#
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