Theme: | Direct mates in 2 moves are required with the theme: At least one changed mate or threat from the same white battery in at least three phases.
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Judge: | Dragan Stojnić (Serbia)
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Closing date: | May 1st, 2007
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Send problems to: |
Milan Velimirović, Milentija Popovića 35/6, 11070 Novi Beograd, Serbia
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or by e-mail to: | mivel@sezampro.com (with subject LP2/2007)
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or online: | fill the input form Originals..LP2 on MatPlus.Net site - ensure that correct section (LP2) is selected! You should sign-in first (if you are not registered member) to be able to access this form.
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Up to three entries per author are allowed. Joint compositions are not accepted!
This time there is again a lot of examples, but as for the 1st round, the judge, the tourney director and the administrator of MatPlus pages feel that there is still a lot of possibilities for original composing.
Note that entries should be sent to new address, not to tourney director Slobodan Šaletić. This is done for practical reasons while, as soon as the term for sending the entries expires, the director takes care about everything.
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Examples
All thematic variations are given in bold face.
1. Dragan Stojnic 5.pr Kolpakov MT 2006
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1... Sf8 2.Rxe3# 1.Be~? ~ 2.Se6#, 1... Sf8! 1.Bb3? Sf8 2.Re6#, 1... Sxf4! 1.Bxf5? Sf8 2.Rec5#, 1... Bxf7! 1.Bd5! ~ 2.Se6# 1... Sf8 2.Rxf5# 1... Sxf4,Bxf7 2.Qxe3,Sxf5#
4x1 changed mates from BR battery (set play, two tries and actual play).
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2. Anatoly Slesarenko 3.Pr Alex Casa 70 JT 2003
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1.Bc6? ~ 2.Re4/Rd5/Re6:# 1... bc6! 1.Sb6? ~ 2.Rd5# 1... Kc3 2.Re3# 1... Sf2:! 1.Qg5? ~ 2.Re6:# 1... Re4 2.Rd5# 1... Rf4! 1.Bc4:! ~ 2.Re4# 1... Ba4: 2.Rd5# 1... Bf5/Bg6: 2.Re6:# 1... Kc4: 2.Qd3#
3 different threats from BR battery.
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3. Zoltan Labai & Peter Gvozdjak 2.pr Troll 1991-2
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1.Sd2? ~ 2.Rg3# 1... Kc3 2.Rd7# 1... Bb8! 1.Bc2? ~ 2.Rd7# 1... Kc3 2.Rc7# 1... Bxb3! 1.Sd6! ~ 2.Rc7# 1... Kc3 2.Rg3# 1... Kc5 2.Qxf2#
Theme doubled: 3x1 threat change and 3x1 changed mate
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4. Dragan Stojnic 3.pr Problem Forum 2004
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1.Bxc2? ~ 2.Sd3#, 1... Ra1! 1.Bc4? Ra1 2.Rxf4#, 1... Ba4! 1.Be4? Ra1 2.Rc4#, 1... Bd5! 1.Bf5? Ra1 2.Rd3#, 1... Bxe6! 1.Bg6! ~ 2.Sd3# 1... Ra1 2.Rd3# 1... Bb~,Bd5,Bxe6,Qa6 2.Sc4,Re4,Qg7,h8QB#
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5. Almiro Zarur 1.pr Fest.Castellari 1964
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1.Rc4? e2 2.Kg4#, 1... d4! 1.Bb1? e2 2.Kf5#, 1... Bxb1! 1.Kf4? e2 2.Kf3#, 1... c4! 1.Bd8! (~) 1... e2 2.Kf6# 1... ba3 2.Ba5# 1... Bb1,c4,d4 2.Sxb1,Rd4,Sc4#
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6. Milan Velimirovic 6.hm 127.TT Probleemblad 1971
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1.Rb5? Sxd4 2.Kxd7# 1... Se5! 1.Rc5? Sxd4 2.Kxc7# 1... e5! 1.Re4? Sxd4 2.Kb7# 1... Re5! 1.Rd5! ~ 2.Qxg7# 1... Sxd4,hg6 2.Kb7,Qh8#
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7. Miodrag Mladenovic & Nikola Stolev 1-2.pr ea Liga Problemista 1987
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1... gh5+ 2.Kxh5# 1.Sf2? gh5+ 2.Kf5#, 1... Sc4! 1.Sc3! ~ 2.Qe4# 1... gh5+ 2.Kf3# 1... Kc4 2.Qd5#
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8. Touw Hian Bwee 2.pr Israel Ring Tourney 1962-I
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1.Bh6? ~ 2.Bf4# 1... Rc4 2.Kf8# 1... c1Q! 1.Bg6? ~ 2.d4# 1... Rd5 2.Kf7# 1... fxe2! 1.Rd4? ~ 2.Re4# 1... Rc4 2.Kd7# 1... Bd5! 1.Ra8! ~ 2.Qb8# 1... Rd5 2.Kd8#
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9. Herbert Ahues 1.pr Schakend Nederland 1960
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1.Rf3? ~ 2.c3# 1... Sb5 2.Kf5# 1... Rxa4! 1.Re3? ~ 2.c3# 1... Sb5 2.Ke7# 1... Be1! 1.Bxc4? ~ 2.c3# 1... Sb5 2.Kf7# 1... Bxd3! 1.Bd2! ~ 2.Bc3# 1... Sb5 2.Kg5# 1... Be1 2.Be3# 1... Rxf5+ 2.Kxf5#
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10. Milan R. Vukcevich 1.pr Schulte MT 1992/1993
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1... Se4 2.Kd7# 1.Rg8? (~) 1... Se2 2.Kd7# 1... Kd4 2.Rg4# 1... Sd5! 1.d7? (~) 1... Se2 2.Kd6# 1... Kd4 2.Re4# 1... Sb5! 1.Qd7? (~) 1... Sa2 2.Ke7# 1... Kd4 2.Qa4# 1... Sd5! 1.Sd7! (~) 1... Se2 2.Kf6# 1... Kd4 2.Qh4#
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11. Barry Barnes & Christopher Reeves 1.pr Die Schwalbe 1964
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1.b3? ~ 2.Qc4# 1... Kd4 2.Rc6# 1... d5! 1.Be4? ~ 2.Qd5# 1... Kd4 2.Rxb4# 1... Rh5! 1.Sf4? ~ 2.Qd5# 1... Kd4 2.Rb5# 1... Rxf6! 1.Bd3! ~ 2.Qc4# 1... Kd4 2.Rxd6# 1... d5 2.Re6#
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12. Alfreds Dombrovskis & Lev Loshinski 1.hm Europe Echecs 1972
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1.Rc5? ~ 2.Sf5# 1... ed4 2.Rg2# 1... Rf2! 1.e4? ~ 2.Sf5# 1... ed4 2.Re3# 1... Bg5! 1.Be6? ~ 2.Sf5# 1... ed4 2.Rg4# 1... Rf4! 1.Qg2! ~ 2.Sf5# 1... ed4 2.Rh3# 1... Bd3/Bc8,Sc6+ 2.Sc8,Rxc6#
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13. Andrej Lobusov 1.pr The Problemist 1976
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1.Qf7? ~ 2.Qc4# 1... Kxe4 2.Re2# 1... Qxe4 2.Qb3# 1... Qg8! 1.Qf6? ~ 2.Qd4# 1... Kxe4 2.Rd2# 1... Qxe4 2.Qc3# 1... Qd5! 1.Qxh5? ~ 2.Qe2# 1... Kxe4 2.Rc4# 1... Qxe4 2.Qd1# 1... Sg3! 1.Qg5! ~ 2.Qe3# 1... Kxe4 2.Rc3# 1... Qxe4 2.Qd2#
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14. Evgenij Bogdanov 3.pr 64 1982
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1.Rf6? Bxe4 2.Rg3#, 1... Rc7! 1.Rg6? Bxe4 2.Rf3#, 1... Qf8! 1.Re6! ~ 2.Qc5# 1... Bxe4 2.R3xe4# 1... de4,Rc7,Qf8 2.Rd6,Rg3,Rf3#
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15. Marjan Kovacevic 2.hm The Problemist 1992
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1... Sd3 2.Rxf5# 1... e5,Qh8,fe3 2.Rdxd2,Rxf4,Sc5# 1.Sxf5? ~ 2.Sc5# 1... Sd3 2.Rc5# 1... ed6 2.Sxd6# 1... e5! 1.Rfxd2? ~ 2.Rxf5# 1... ed6,e5 2.Qe8,R5d3# 1... Qh8! 1.Sf3! ~ 2.Rdxd2# 1... Sd3 2.Re5# 1... fe3,Qh8,ed6,Sc3+ 2.Rd4,Sg5,Rxd6,Sxc3#
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16. Erkki Wirtanen 4.pr Brunner MT 1963
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1.Rc3? ~ 2.b4# 1... dc4 2.Bd3# 1... Qxf3! 1.Sd4? ~ 2.Rxc6# 1... dc4 2.Be4# 1... Rxd3! 1.Bb8? ~ 2.Ba7# 1... dc4 2.Bg4# 1... Bxe6! 1.Re4? ~ 2.b4# 1... dc4 2.Be6# 1... Qxg3! 1.Se7? ~ 2.Rxc6# 1... dc4 2.Bg6# 1... Bxe6! 1.Sf8! ~ 2.Sd7# 1... dc4 2.Bg6# 1... Bxe6,Sf6 2.Sxe6,Bd6#
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17. Jacob Haring 2.pr BCF 1965
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1... Kxc6 2.Bd4# 1.f4? ~ 2.Sb4# 1... Kxc6 2.Be3# 1... dc5! 1.g4! ~ 2.Sb4# 1... Kxc6 2.Bf2# 1... Qe1/Qe7+/Qxg4,a5,dc5,Sxc6 2.Se7,Bxa7,Qd7,Bc4#
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18. Eeltje Visserman 3.hm Schweizerische Schachzeitung 1963
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1.Rb2? ~ 2.Rb4# 1... Rxc3 2.Sd2# 1... Ba2! 1.Kxg4? ~ 2.Sf3# 1... Rxc3 2.Sg3# 1... Rg8! 1.cb6? ~ 2.Bc5# 1... Rxc3 2.Sc5# 1... Rc8! 1.d7? ~ 2.Qd6# 1... Rxc3 2.Sd6# 1... Sc7! 1.f7? ~ 2.Qf6# 1... Rxc3 2.Sf6# 1... Rh6! 1.Sf7! ~ 2.Qe3/Qe5# 1... Rxc3 2.Seg5#
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19. Matti Myllyniemi Ep Heinonen JT 1972-3
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1.c4? S~,Sd5 2.Sc2,c5#, 1... a4! 1.c7? S~,Sd5 2.Sc6,c8S#, 1... a4! 1.e4? S~,Sd5 2.Se2,e5#, 1... a4! 1.e7? S~,Sd5 2.Se6,e8S#, 1... a4! 1.f4? S~,Sd5 2.Sf3,Be5#, 1... a4! 1.Sd2? S~,Sd5 2.S4b3,Se4#, 1... a4! 1.Sxa5! (~) 1... S~,Sd5 2.Sdb3,Sb7# 1... Kc5/Kd5 2.Sdb3#
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20. Milan R. Vukcevich 1.hm Hassberg MT 1987
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1... fe6 2.Sdc6# 1... f6 2.Sbc6# 1... Sf6 2.Sbc6# 1.Qc6? ~ 2.Sd7# 1... fe6 2.Sf3# 1... f6 2.Qc5# 1... Sf6! 1.Kc6! ~ 2.Sd7# 1... fe6 2.Sb5# 1... f6 2.Qd5# 1... Sf6 2.Qxf4#
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21. Marjan Kovacevic 4.pr diagrammes 1993
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1.Kf3? ~ 2.Sb5# 1... Rxc3 2.Sxe3# 1... Rxc5 2.Qb4# 1... Ra4! 1.Qc6? ~ 2.Qf6# 1... Rxc3 2.Sb6# 1... Rxc5 2.Qa4# 1... Rb4! 1.Qa6! ~ 2.Qf6# 1... Rxc3 2.Sf6# 1... Rxc5 2.Qd3#
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