MESON Chess Problem Database
Problem Display
PID: 125395 (3R1K1Q/7b/1N2k2r/1n6/3B2P1/p2N1n2/4P3/2q5 w - - 0 1)
Shire, David J
The Problemist, 1988
#2
8 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qb2
- 2.Sf4#
- 2.Sc5#
- 1...Qd2
- 2.Sc5#
- 1...Qe3
- 2.Sc5#
- 1...Qf4+
- 2.Sxf4#
- 1...Qa1
- 2.Sf4#
- 2.Sc5#
- 1...Qb1
- 2.Sf4#
- 2.Sc5#
- 1...Qd1
- 2.Sf4#
- 2.Sc5#
- 1...Qe1
- 2.Sf4#
- 2.Sc5#
- 1...Qf1
- 2.Sf4#
- 2.Sc5#
- 1...Qg1
- 2.Sf4#
- 2.Sc5#
- 1...Qh1
- 2.Sf4#
- 2.Sc5#
- 1...Qc2
- 2.Sf4#
- 1...Qc3
- 2.Sf4#
- 1...Qc4
- 2.Sf4#
- 1...Qc5+
- 2.Sxc5#
- 1...Qc6
- 2.Sf4#
- 1...Qc8
- 2.Sf4#
- 1...Rh1
- 2.Qf6#
- 1...Rh2
- 2.Qf6#
- 1...Rh3
- 2.Qf6#
- 1...Rh4
- 2.Qf6#
- 1...Rh5
- 2.Qf6#
- 1...Rf6+
- 2.Qxf6#
- 1...Bxd3
- 2.Qg8#
- 1...Be4
- 2.Qg8#
- 1...Bf5
- 2.Qg8#
- 1...Bg6
- 2.Qf6#
- 1...Bg8
- 2.Qxg8#
- 1...Se1
- 2.Qe5#
- 1...Sg1
- 2.Qe5#
- 1...Sd2
- 2.Sf4#
- 2.Qe5#
- 1...Sh2
- 2.Qe5#
- 1...Sfxd4
- 2.Qe5#
- 1...Sh4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sg5
- 2.Qe5#
- 1...Sc3
- 2.Sc5#
- 1...Qb2
- Tries
- 1.Sc4?
- threat
- 2.Sc5#
- 1...Qf4+
- 2.Sxf4#
- 1...Rf6+
- 2.Qxf6#
- 1...Qxc4
- 2.Sf4#
- 1...Bxd3
- 2.Qg8#
- 1...Sd6
- 2.Rxd6#
- 1...Rh5
- 2.Qf6#
- 1...Qg5!
- threat
- 1.Qg7?
- threat
- 2.Qd7#
- 2.Qe7#
- 2.Qf7#
- 1...Qf4+
- 2.Sxf4#
- 1...Qc5+
- 2.Sxc5#
- 1...Rf6+
- 2.Qxf6#
- 1...Sfxd4
- 2.Qe5#
- 2.Qe7#
- 2.Qf7#
- 1...Sbxd4
- 2.Qe7#
- 2.Qf7#
- 1...Qg5
- 2.Qd7#
- 2.Qf7#
- 1...Qc6
- 2.Sf4#
- 2.Qe7#
- 2.Qf7#
- 1...Qc8
- 2.Sf4#
- 2.Qe7#
- 2.Qf7#
- 1...Bg6
- 2.Qf6#
- 2.Qd7#
- 2.Qe7#
- 1...Bg8
- 2.Qd7#
- 2.Qe7#
- 2.Qxg8#
- 1...Se5
- 2.Qxe5#
- 2.Qe7#
- 1...Sg5
- 2.Qe5#
- 2.Qd7#
- 2.Qe7#
- 1...Sd6
- 2.Qd7#
- 2.Qe7#
- 1...Qc7!
- threat
- 1.e3?
- threat
- 2.Sf4#
- 1...Qc5+
- 2.Sxc5#
- 1...Rf6+
- 2.Qxf6#
- 1...Qxe3
- 2.Sc5#
- 1...Bxd3
- 2.Qg8#
- 1...Qc7!
- threat
- 1.Sc4?
- Keys
- 1.Be5!
- threat
- 2.Re8#
- 1...Qf4+
- 2.Sxf4#
- 1...Qc5+
- 2.Sxc5#
- 1...Rf6+
- 2.Qxf6#
- 1...Sxe5
- 2.Qxe5#
- 1...Qg5
- 2.Sc5#
- 1...Qc6
- 2.Sf4#
- 1...Qc7
- 2.Sf4#
- 1...Qc8
- 2.Sf4#
- 1...Bg6
- 2.Qf6#
- 1...Sd6
- 2.Rxd6#
- 1...Sc7
- 2.Rd6#
- threat
- 1.Be5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 21
- Sets
- Q(a);N_GUARD::S(B)
- Q(a);CHECK,N_GUARD::S(B),XQ(a)
- Q(a);N_GUARD,P_PINR(F)::S(B)
- R(f);N_GUARD::QAR1(H)
- R(f);CHECK,N_GUARD::QAR1(H),XR(f)
- B(g);N_GUARD,XS(B)::QAB(H)
- B(g);N_GUARD::QAB(H)
- B(g);S_CUTR(f)::QAR1(H)
- B(g);N_GUARD::QAB(H),XB(g)
- S(c);N_GUARD::QAR1(H)
- S(c);N_GUARD,XB(C)::QAR1(H)
- S(c);N_GUARD::QAR1(H),XS(c)
- S(d);S_CUTQ(a)::S(B)
- Tries
- Try
- S(E);
- Threat
- S(B)
- Vars
- Q(a);CHECK,N_GUARD::S(B),XQ(a)
- R(f);CHECK,N_GUARD::QAR1(H),XR(f)
- Q(a);N_GUARD,XS(E)::S(B)
- B(g);N_GUARD,XS(B)::QAB(H)
- S(d);N_GUARD::R1(F),XS(d)
- R(f);N_GUARD::QAR1(H)
- Refutation
- Q(a);
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- Q(a);CHECK,N_GUARD::S(B),XQ(a)
- R(f);CHECK,N_GUARD::QAR1(H),XR(f)
- Refutation
- Q(a);
- Try
- P(A);
- Threat
- S(B)
- Vars
- Q(a);CHECK,N_GUARD::S(B),XQ(a)
- R(f);CHECK,N_GUARD::QAR1(H),XR(f)
- Q(a);N_GUARD,XP(A)::S(B)
- B(g);N_GUARD,XS(B)::QAB(H)
- Refutation
- Q(a);
- Try
- Actual
- B(C);
- Threat
- R(F)
- Vars
- Q(a);CHECK,N_GUARD::S(B),XQ(a)
- R(f);CHECK,N_GUARD::QAR1(H),XR(f)
- S(c);OGATE,XB(C)::QAR1(H),XS(c)
- Q(a);N_GUARD::S(B)
- Q(a);N_GUARD,P_PINR(F)::S(B)
- B(g);S_CUTR(f)::QAR1(H)
- S(d);N_GUARD::R1(F),XS(d)
- S(d);N_GUARD::R1(F)
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).