Theme for Liga Problemista 2/2007

Srpski/Serbian...
 
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.
Judge:Dragan Stojnić (Serbia)
Closing date:May 1st, 2007
Send problems to: Milan Velimirović, Milentija Popovića 35/6, 11070 Novi Beograd, Serbia
or by e-mail to:mivel@sezampro.com (with subject LP2/2007)
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.


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.

Examples

All thematic variations are given in bold face.

1. Dragan Stojnic
5.pr Kolpakov MT 2006
12KPSs1p2BBb1pP2Rpp2r1k1P2Q3p3PSR3s4rb






#2* v 12+12
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).

2. Anatoly Slesarenko
3.Pr Alex Casa 70 JT 2003
4r4p3P6pBQ2B2R2pSppk3r10b1PP3qRsKs






#2 vv 10+12
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.

3. Zoltan Labai &
Peter Gvozdjak

2.pr Troll 1991-2
7BbS4R1rR2P4p3P3p1kBP3P6b4sK6SQ






#2 vv 12+7
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

4. Dragan Stojnic
3.pr Problem Forum 2004
2q10Q1P2PbP3S3k1p2P1R1p2rb1BP1s1rBpP6S1K






#2 v 13+10
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#

5. Almiro Zarur
1.pr Fest.Castellari 1964
14Pp3p1B1Q2pp1BKP1p4RPSp2p1S1bP1k9R






#2 v 12+9
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#

6. Milan Velimirovic
6.hm 127.TT Probleemblad 1971
1RK2k2p1ppp1p3s3BPr3RP2qB1Q6r11b






#2 vvv 8+11
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#

7. Miodrag Mladenovic &
Nikola Stolev

1-2.pr ea Liga Problemista 1987
5srB6rB6pps1PS3P3k2KR3S2PP2R12Q






#2* v 12+7
1... gh5+ 2.Kxh5#
1.Sf2? gh5+ 2.Kf5#, 1... Sc4!
1.Sc3! ~ 2.Qe4#
  1... gh5+ 2.Kf3#
  1... Kc4 2.Qd5#

8. Touw Hian Bwee
2.pr Israel Ring Tourney 1962-I
3RQB3p1RKB4p2p4r1k9P4P1p2b1p1SP






#2 vvv 10+8
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#

9. Herbert Ahues
1.pr Schakend Nederland 1960
1s6s2pRBQ3p2KP1r4RB1S1pk3r3P5PP2bS6b1q






#2 vvv 12+11
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#

10. Milan R. Vukcevich
1.pr Schulte MT 1992/1993
4R5S1QB2pP1PKS2P1P1RP1P2k5P1s6BP






#2* vvv 16+3
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#

11. Barry Barnes &
Christopher Reeves

1.pr Die Schwalbe 1964
5K2BP2PQ1pPR1p1PSr2k2B3p4p10P






#2 vvv 11+6
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#

12. Alfreds Dombrovskis &
Lev Loshinski

1.hm Europe Echecs 1972
1s1K8Sp1sb2k7Pp2p1P1P2Br4P1RQr1R4B2b






#2 vvv 11+10
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#

13. Andrej Lobusov
1.pr The Problemist 1976
q10p2P1p2P2Q3B4p4P3K2k6R2Pb2B5s






#2 vvv 9+7
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#

14. Evgenij Bogdanov
3.pr 64 1982
2Q10rq1B1R8p4K1SkS5ppR7p9Bb






#2 vv 8+8
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#

15. Marjan Kovacevic
2.hm The Problemist 1992
Q11p1p2B1P2Pq1K1R1p1pS3kp1Spp2P6p1R3ss






#2* vv 10+12
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#

16. Erkki Wirtanen
4.pr Brunner MT 1963
4s2K5b4p1R1S1P1kp1B1Q2P4PPP1R1SB3pr2qr






#2 v... 13+9
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#

17. Jacob Haring
2.pr BCF 1965
7ss6Kp1Sp3p1RBkpQ9q1p3P1r6Pr2R2B






#2* v 9+11
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#

18. Eeltje Visserman
3.hm Schweizerische Schachzeitung 1963
s6r1B7p1PPP4P3SPp2kSQp1B1Rp2K4R1PP2br






#2 v... 15+9
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#

19. Matti Myllyniemi
Ep Heinonen JT 1972-3
3K3B9sPkP3pP3P5S4PS1Q1P4P1P






#2 v... 13+3
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#

20. Milan R. Vukcevich
1.hm Hassberg MT 1987
1S1R9p1r3PP4K2kp1s3S1pR2P1P1Q4P1Ps2B






#2* v 13+7
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#

21. Marjan Kovacevic
4.pr diagrammes 1993
8BQ1R12P1PS6rk1P3sS1p3b2pP1K






#2 vv 10+6
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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