MESON Chess Problem Database
Problem Display
PID: 157961 (8/4p2P/p3P3/P4R2/1PNkn3/pB1P4/1nQ5/K4N1b w - - 0 1)
Maleika, Gerhard
Paslack, Rainer
Best Problems, 2009
#2
11 + 7
SOLUTION
- SOUND
- Sets
- 1...Sxc4
- 2.Qxc4#
- 1...Sd2
- 2.h8Q#
- 2.h8B#
- 1...Sf2
- 2.h8Q#
- 2.h8B#
- 1...Sc3
- 2.h8Q#
- 2.h8B#
- 1...Sg3
- 2.h8Q#
- 2.h8B#
- 1...Sc5
- 2.h8Q#
- 2.h8B#
- 1...Sg5
- 2.h8Q#
- 2.h8B#
- 1...Sd6
- 2.h8Q#
- 2.h8B#
- 1...Sxc4
- Tries
- 1.Sxb2?
- threat
- 2.Rd5#
- 2.Qc4#
- 1...Sd2
- 2.Qc5#
- 2.h8Q#
- 2.h8B#
- 1...Sf2
- 2.Qc4#
- 2.Qc5#
- 2.h8Q#
- 2.h8B#
- 1...Sc3
- 2.Qf2#
- 2.h8Q#
- 2.h8B#
- 1...Sg3
- 2.Qc4#
- 2.Qc5#
- 2.h8Q#
- 2.h8B#
- 1...Sc5
- 2.Qc4#
- 2.Qxc5#
- 2.h8Q#
- 2.h8B#
- 1...Sg5
- 2.Qc4#
- 2.Qc5#
- 2.h8Q#
- 2.h8B#
- 1...Sd6
- 2.Qc5#
- 2.h8Q#
- 2.h8B#
- 1...Sf6
- 2.Qc4#
- 2.Qc5#
- 1...axb2+!
- threat
- 1.Scd2?
- threat
- 2.Rd5#
- 1...Sxd2
- 2.h8Q#
- 2.h8B#
- 1...Sc4
- 2.Qxc4#
- 1...Sf2
- 2.h8Q#
- 2.h8B#
- 1...Sc3
- 2.h8Q#
- 2.h8B#
- 1...Sg3
- 2.h8Q#
- 2.h8B#
- 1...Sc5
- 2.h8Q#
- 2.h8B#
- 1...Sg5
- 2.h8Q#
- 2.h8B#
- 1...Sd6
- 2.h8Q#
- 2.h8B#
- 1...Sf6!
- threat
- 1.Sxa3?
- threat
- 2.Rd5#
- 1...Sc4
- 2.Qxc4#
- 1...Sd2
- 2.h8Q#
- 2.h8B#
- 1...Sf2
- 2.h8Q#
- 2.h8B#
- 1...Sc3
- 2.h8Q#
- 2.h8B#
- 1...Sg3
- 2.h8Q#
- 2.h8B#
- 1...Sc5
- 2.h8Q#
- 2.h8B#
- 1...Sg5
- 2.h8Q#
- 2.h8B#
- 1...Sd6
- 2.h8Q#
- 2.h8B#
- 1...Sf6!
- threat
- 1.Sce3?
- threat
- 2.Rd5#
- 1...Sd2
- 2.h8Q#
- 2.h8B#
- 1...Sf2
- 2.h8Q#
- 2.h8B#
- 1...Sc3
- 2.h8Q#
- 2.h8B#
- 1...Sg3
- 2.h8Q#
- 2.h8B#
- 1...Sc5
- 2.h8Q#
- 2.h8B#
- 1...Sg5
- 2.h8Q#
- 2.h8B#
- 1...Sd6
- 2.h8Q#
- 2.h8B#
- 1...Sf6!
- threat
- 1.Sb6?
- threat
- 2.Rd5#
- 1...Sd2
- 2.h8Q#
- 2.h8B#
- 1...Sf2
- 2.h8Q#
- 2.h8B#
- 1...Sc3
- 2.h8Q#
- 2.h8B#
- 1...Sg3
- 2.h8Q#
- 2.h8B#
- 1...Sc5
- 2.h8Q#
- 2.h8B#
- 1...Sg5
- 2.h8Q#
- 2.h8B#
- 1...Sd6
- 2.h8Q#
- 2.h8B#
- 1...Sf6!
- threat
- 1.Sd6?
- threat
- 2.Rd5#
- 1...Sxd6
- 2.h8Q#
- 2.h8B#
- 1...Sc4
- 2.Qxc4#
- 1...Sd2
- 2.h8Q#
- 2.h8B#
- 1...Sf2
- 2.h8Q#
- 2.h8B#
- 1...Sc3
- 2.h8Q#
- 2.h8B#
- 1...Sg3
- 2.h8Q#
- 2.h8B#
- 1...Sc5
- 2.h8Q#
- 2.h8B#
- 1...Sg5
- 2.h8Q#
- 2.h8B#
- 1...Sf6!
- threat
- 1.dxe4?
- threat
- 2.Rd5#
- 2.h8Q#
- 2.h8B#
- 1...Bxe4
- 2.h8Q#
- 2.h8B#
- 1...Sxc4
- 2.Rd5#
- 2.Qxc4#
- 1...Bg2
- 2.Rd5#
- 2.h8Q#
- 2.h8B#
- 1...Bf3
- 2.Rd5#
- 2.h8Q#
- 2.h8B#
- 1...Sd1
- 2.Rd5#
- 2.h8Q#
- 2.h8B#
- 1...Sa4
- 2.Rd5#
- 2.h8Q#
- 2.h8B#
- 1...a2
- 2.Rd5#
- 2.h8Q#
- 2.h8B#
- 1...Sd3!
- threat
- 1.Sxb2?
- Keys
- 1.Se5!
- threat
- 2.Sc6#
- 1...Sf6
- 2.Qc5#
- 1...Sd2
- 2.Qc5#
- 1...Sf2
- 2.Qc5#
- 1...Sc3
- 2.Qf2#
- 1...Sg3
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Sg5
- 2.Qc5#
- 1...Sd6
- 2.Qc5#
- threat
- 1.Se5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 1
- Sets
- S(b);OGATE,XS(G)::QAR1(C),XS(b)
- S(e);N_GUARD::P=Q
- Tries
- Try
- S(G);XS(b)
- Threat
- DUALS(2)
- Refutation
- P(c);CHECK,XS(G)
- Try
- S(G);
- Threat
- R1(I)
- Vars
- S(e);N_GUARD,XS(G)::P=Q
- S(b);N_GUARD::QAR1(C),XS(b)
- S(e);N_GUARD::P=Q
- Refutation
- S(e);
- Try
- S(G);XP(c)
- Threat
- R1(I)
- Vars
- S(b);N_GUARD::QAR1(C),XS(b)
- S(e);N_GUARD::P=Q
- Refutation
- S(e);
- Try
- S(G);
- Threat
- R1(I)
- Vars
- S(e);N_GUARD::P=Q
- Refutation
- S(e);
- Try
- S(G);
- Threat
- R1(I)
- Vars
- S(e);N_GUARD::P=Q
- Refutation
- S(e);
- Try
- S(G);
- Threat
- R1(I)
- Vars
- S(e);N_GUARD,XS(G)::P=Q
- S(b);N_GUARD::QAR1(C),XS(b)
- S(e);N_GUARD::P=Q
- Refutation
- S(e);
- Try
- P(E);XS(e)
- Threat
- DUALS(3)
- Vars
- B(a);XP(E)::P=Q
- Refutation
- S(b);
- Try
- Actual
- S(G);
- Threat
- S(G)
- Vars
- S(e);N_GUARD::QAB1(C)
- S(e);N_GUARD,SBLOCK::QAB(C)
- S(e);N_GUARD::QAB1(C),XS(e)
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).