MESON Chess Problem Database
Problem Display
PID: 12108 (3nN3/3P1Ppq/1pp3pp/Pn2k1p1/R1Q4N/4rB2/8/6RK w - - 0 1)
Lider, Valentin Viktorovich
2nd Prize, Themes-64, 1974
#2
10 + 11
| 3771 | FIDE Album (1974-1976) | 1980 |
| 273 | Mat Plus | 1994 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Rxe1#
- 1...Re2
- 2.Qxe2#
- 1...Ra3
- 2.Qe4#
- 1...Rb3
- 2.Qe4#
- 1...Rc3
- 2.Qe4#
- 1...Rd3
- 2.Qe4#
- 1...Rxf3
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...c5
- 2.Qd5#
- 1...h5
- 2.Rxg5#
- 1...Re1
- Tries
- 1.Qxc6?
- threat
- 2.Qd5#
- 1...Rxf3
- 2.Re4#
- 2.Qe4#
- 1...Re4
- 2.Rxe4#
- 2.Qxe4#
- 1...Sd4
- 2.Qd6#
- 1...Rd3
- 2.Re4#
- 2.Qe4#
- 1...Sc3
- 2.Qd6#
- 1...Sc7
- 2.Qd6#
- 1...Sxc6!
- threat
- 1.f8Q?
- 1...Rxf3
- 2.Sxf3#
- 2.Qe4#
- 1...gxh4
- 2.Qff4#
- 1...bxa5
- 2.Qfc5#
- 1...Qg8
- 2.Sxg6#
- 1...Qh8
- 2.Sxg6#
- 1...Re1
- 2.Rxe1#
- 1...Re2
- 2.Qxe2#
- 1...Ra3
- 2.Qe4#
- 1...Rb3
- 2.Qe4#
- 1...Rc3
- 2.Qe4#
- 1...Rd3
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...Sa3
- 2.Qd6#
- 1...Sc3
- 2.Qd6#
- 1...Sd4
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...Sa7
- 2.Qd6#
- 1...Sc7
- 2.Qd6#
- 1...Sb7
- 2.Qe7#
- 1...Sf7
- 2.Qe7#
- 1...g4
- 2.Qff4#
- 1...c5
- 2.Qd5#
- 1...h5
- 2.Rxg5#
- 1...Se6!
- 1...Rxf3
- 1.Qxc6?
- Keys
- 1.f8S!
- 1...Rxf3
- 2.Qe4#
- 1...gxh4
- 2.Qf4#
- 1...bxa5
- 2.Qc5#
- 1...Re4
- 2.Qxe4#
- 1...Sd4
- 2.Qxd4#
- 1...Qg8
- 2.Sfxg6#
- 1...Qh8
- 2.Sfxg6#
- 1...Re1
- 2.Rxe1#
- 1...Re2
- 2.Qxe2#
- 1...Ra3
- 2.Qe4#
- 1...Rb3
- 2.Qe4#
- 1...Rc3
- 2.Qe4#
- 1...Rd3
- 2.Qe4#
- 1...Sa3
- 2.Qd4#
- 1...Sc3
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Se6
- 2.Qxe6#
- 1...Sb7
- 2.Qe6#
- 1...Sf7
- 2.Qe6#
- 1...g4
- 2.Qf4#
- 1...c5
- 2.Qd5#
- 1...h5
- 2.Rxg5#
- 1...Rxf3
- 1.f8S!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 14
- REMOVED MATES = 0
- Sets
- R(a);OGATEB,P_PINR(A)::R(A),XR(a)
- R(a);OGATEB::QAR(E),XR(a)
- R(a);N_GUARD::QAR1(E)
- R(a);N_GUARD,XB(C)::QAR1(E)
- R(a);N_GUARD::QAR1(E),XR(a)
- P(f);N_GUARD::QAR1(E)
- P(h);N_GUARD::R(A),XP(d)
- Tries
- Try
- Q(E);XP(f)
- Threat
- QAR1(E)
- Vars
- S(b);N_GUARD::QAB1(E)
- Refutation
- S(k);XQ(E)
- Try
- P(I);
- Vars
- P(d);N_GUARD,XS(F)::QAB1(I)
- P(e);N_GUARD,XP(G)::QAR2(I)
- Q(j);N_GUARD::S(F),XP(g)
- R(a);OGATEB,P_PINR(A)::R(A),XR(a)
- R(a);OGATEB::QAR(E),XR(a)
- R(a);N_GUARD::QAR1(E)
- R(a);N_GUARD::QAR1(E),XR(a)
- S(b);N_GUARD::QAB1(I)
- S(b);N_GUARD::QAB1(I),XS(b)
- S(k);N_GUARD::QAR2(I)
- P(d);N_GUARD::QAB1(I)
- P(f);N_GUARD::QAR1(E)
- P(h);N_GUARD::R(A),XP(d)
- Refutation
- S(k);
- Try
- Actual
- P(I);
- Vars
- R(a);N_GUARD,XB(C)::QAR1(E)
- P(d);N_GUARD,XS(F)::QAB1(E)
- P(e);N_GUARD,XP(G)::QAR2(E)
- R(a);N_GUARD::QAR1(E),XR(a)
- S(b);N_GUARD::QAB1(E),XS(b)
- Q(j);N_GUARD::S(I),XP(g)
- R(a);OGATEB,P_PINR(A)::R(A),XR(a)
- R(a);OGATEB::QAR(E),XR(a)
- R(a);N_GUARD::QAR1(E)
- S(b);N_GUARD::QAB1(E)
- S(k);N_GUARD::QAR1(E),XS(k)
- S(k);N_GUARD::QAR1(E)
- P(d);N_GUARD::QAB1(E)
- P(f);N_GUARD::QAR1(E)
- P(h);N_GUARD::R(A),XP(d)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).