MESON Chess Problem Database
Problem Display
PID: 133499 (1K5R/3p4/3Pp3/4R3/QP2npk1/8/4P2B/8 w - - 0 1)
Rice, John Michael
Chess Problem Spectrum, 2003
#2
8 + 5
SOLUTION
- SOUND
- Tries
- 1.Rhh5?
- 1...Sxd6
- 2.Reg5#
- 1...Sg5
- 2.Rexg5#
- 1...Sd2
- 2.Reg5#
- 1...Sf2
- 2.Reg5#
- 1...Sc3
- 2.Reg5#
- 1...Sg3
- 2.Reg5#
- 1...Sc5
- 2.Reg5#
- 1...Sf6
- 2.Reg5#
- 1...f3!
- 1...Sxd6
- 1.Qd1?
- 1...Sxd6
- 2.Qg1#
- 1...Sd2
- 2.Qg1#
- 1...Sf2
- 2.Qg1#
- 1...Sc3
- 2.Qg1#
- 1...Sc5
- 2.Qg1#
- 1...Sg5
- 2.Qg1#
- 1...Sf6
- 2.Qg1#
- 1...f3
- 2.exf3#
- 1...Sg3!
- 1...Sxd6
- 1.Qc2?
- 1...Sxd6
- 2.Qg6#
- 1...Sd2
- 2.Qg6#
- 1...Sf2
- 2.Qg6#
- 1...Sc3
- 2.Qg6#
- 1...Sg3
- 2.Qg6#
- 1...Sc5
- 2.Qg6#
- 1...Sf6
- 2.Qg6#
- 1...f3
- 2.Qxe4#
- 1...Sg5!
- 1...Sxd6
- 1.Qb5?
- 1...Sxd6
- 2.Rg5#
- 1...Sd2
- 2.Rg5#
- 1...Sf2
- 2.Rg5#
- 1...Sc3
- 2.Rg5#
- 1...Sg3
- 2.Rg5#
- 1...Sg5
- 2.Rxg5#
- 1...Sf6
- 2.Rg5#
- 1...f3
- 2.Rxe4#
- 1...Sc5!
- 1...Sxd6
- 1.Qc6?
- 1...Sxd6
- 2.Qg2#
- 2.Qf3#
- 1...Sd2
- 2.Qg2#
- 1...Sf2
- 2.Qg2#
- 2.Qf3#
- 1...Sc3
- 2.Qg2#
- 2.Qf3#
- 1...Sg3
- 2.Qf3#
- 1...Sc5
- 2.Qg2#
- 2.Qf3#
- 1...Sg5
- 2.Qg2#
- 1...Sf6
- 2.Qg2#
- 2.Qf3#
- 1...f3
- 2.Qxe4#
- 1...dxc6!
- 1...Sxd6
- 1.Qxd7?
- threat
- 2.Qxe6#
- 1...Sxd6
- 2.Qg7#
- 1...Sg3
- 2.Qg7#
- 1...Sc5
- 2.Qg7#
- 1...Sg5!
- threat
- 1.Qa5?
- 1...Sxd6
- 2.Rg5#
- 1...Sd2
- 2.Rg5#
- 1...Sf2
- 2.Rg5#
- 1...Sc3
- 2.Rg5#
- 1...Sg3
- 2.Rg5#
- 1...Sg5
- 2.Rxg5#
- 1...Sf6
- 2.Rg5#
- 1...f3
- 2.Rxe4#
- 1...Sc5!
- 1...Sxd6
- 1.b5?
- 1...Sxd6
- 2.Qxf4#
- 1...Sd2
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sc3
- 2.Qxf4#
- 1...Sc5
- 2.Qxf4#
- 1...Sg5
- 2.Qxf4#
- 1...Sf6
- 2.Qxf4#
- 1...f3
- 2.Qxe4#
- 1...Sg3!
- 1...Sxd6
- 1.Rhh5?
- Keys
- 1.Qa8!
- 1...Sxd6
- 2.Qg2#
- 2.Qf3#
- 1...Sd2
- 2.Qg2#
- 1...Sf2
- 2.Qg2#
- 2.Qf3#
- 1...Sc3
- 2.Qg2#
- 2.Qf3#
- 1...Sg3
- 2.Qf3#
- 1...Sc5
- 2.Qg2#
- 2.Qf3#
- 1...Sg5
- 2.Qg2#
- 1...Sf6
- 2.Qg2#
- 2.Qf3#
- 1...f3
- 2.Qxe4#
- 1...Sxd6
- 1.Qa8!
This is a version of 15300
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Tries
- Try
- R(H);
- Vars
- S(a);N_GUARD,XP(F)::R1(E)
- S(a);N_GUARD::R1(E),XS(a)
- S(a);N_GUARD::R1(E)
- Refutation
- P(b);
- Try
- Q(C);
- Vars
- S(a);N_GUARD,XP(F)::QAR(C)
- S(a);N_GUARD::QAR(C)
- P(b);OGATE::P(A),XP(b)
- Refutation
- S(a);
- Try
- Q(C);
- Vars
- S(a);OGATE,XP(F)::QAR2(C)
- S(a);OGATE::QAR2(C)
- P(b);OGATEB::QAR2(C),XS(a)
- Refutation
- S(a);
- Try
- Q(C);
- Vars
- S(a);N_GUARD,XP(F)::R1(E)
- S(a);N_GUARD::R1(E)
- S(a);N_GUARD::R1(E),XS(a)
- P(b);OGATEB::R(E),XS(a)
- Refutation
- S(a);
- Try
- Q(C);
- Vars
- S(a);OGATE::QAR2(C)
- S(a);OGATE::QAB1(C)
- P(b);OGATEB::QAR2(C),XS(a)
- Refutation
- P(e);XQ(C)
- Try
- Q(C);P_PINP(d),XP(e)
- Threat
- QAB(C),XP(d)
- Vars
- S(a);N_GUARD,XP(F)::QAR(C)
- S(a);N_GUARD::QAR(C)
- Refutation
- S(a);
- Try
- Q(C);
- Vars
- S(a);N_GUARD,XP(F)::R1(E)
- S(a);N_GUARD::R1(E)
- S(a);N_GUARD::R1(E),XS(a)
- P(b);OGATEB::R(E),XS(a)
- Refutation
- S(a);
- Try
- P(D);
- Vars
- S(a);OGATE,P_SPINP(b),XP(F)::QAR1(C),XP(b)
- S(a);OGATE,P_SPINP(b)::QAR1(C),XP(b)
- P(b);OGATEB,P_SPINS(a)::QAR2(C),XS(a)
- Refutation
- S(a);P_SPINP(b)
- Try
- Actual
- Q(C);
- Vars
- S(a);OGATE::QAR2(C)
- S(a);OGATE::QAB1(C)
- P(b);OGATEB::QAR2(C),XS(a)
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).