MESON Chess Problem Database
Problem Display
PID: 168963 (4qb2/R3n3/3NNk1p/3P4/n5QP/K7/7B/8 w - - 0 1)
Abdullayev, Elmar
SuperProblem, 2015
#2
8 + 6
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qg6
- 2.Qd4#
- 1...Qf7
- 2.Se4#
- 1...Bg7
- 2.Qxg7#
- 1...Sxd5
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sc6
- 2.Qf5#
- 1...Sg6
- 2.Qf5#
- 1...Sc8
- 2.Qf5#
- 1...Sg8
- 2.Qf5#
- 1...h5
- 2.Qg5#
- 1...Qg6
- Tries
- 1.Sd8?
- threat
- 2.Se4#
- 2.Sxe8#
- 1...Sxd5
- 2.Qf5#
- 1...Qg6
- 2.Qd4#
- 1...Qb5
- 2.Se4#
- 1...Qh5
- 2.Se4#
- 1...Qc6
- 2.Se4#
- 1...Qd7
- 2.Se4#
- 1...Qf7
- 2.Se4#
- 1...Sc3
- 2.Sxe8#
- 1...Sc5
- 2.Sxe8#
- 1...Sf5
- 2.Qxf5#
- 1...Sc6
- 2.Qf5#
- 1...Sg6
- 2.Qf5#
- 1...Sc8
- 2.Qf5#
- 1...Sg8
- 2.Qf5#
- 1...Qxd8!
- threat
- 1.Sxf8?
- threat
- 2.Sh7#
- 2.Qd4#
- 1...Sxd5
- 2.Sxe8#
- 2.Sh7#
- 2.Qf5#
- 2.Qg7#
- 1...Qg6
- 2.Qd4#
- 1...Qh5
- 2.Sd7#
- 2.Sh7#
- 1...Qf7
- 2.Se4#
- 2.Sd7#
- 2.Qd4#
- 1...Sf5
- 2.Sxe8#
- 2.Sh7#
- 2.Qxf5#
- 1...Sc6
- 2.Sxe8#
- 2.Sh7#
- 2.Qf3#
- 2.Qf5#
- 2.Qf4#
- 2.Qg7#
- 1...Sg6
- 2.Sxe8#
- 2.Sh7#
- 2.Qf5#
- 1...Sc8
- 2.Sxe8#
- 2.Sh7#
- 2.Qf3#
- 2.Qf5#
- 2.Qf4#
- 2.Qg7#
- 1...Sg8
- 2.Sxe8#
- 2.Sh7#
- 2.Qf3#
- 2.Qf5#
- 2.Qf4#
- 2.Qg7#
- 1...Qxf8!
- threat
- 1.Qf3+?
- 1...Sf5
- 2.Qxf5#
- 1...Kg6!
- 1...Sf5
- 1.Qh5?
- threat
- 2.Se4#
- 2.Sxe8#
- 2.Be5#
- 1...Sxd5
- 2.Qf5#
- 1...Qb5
- 2.Se4#
- 2.Be5#
- 2.Qf7#
- 1...Qc6
- 2.Se4#
- 2.Be5#
- 2.Qf7#
- 1...Qg6
- 2.Be5#
- 2.Qe5#
- 1...Qd7
- 2.Se4#
- 2.Be5#
- 2.Qf7#
- 1...Qf7
- 2.Se4#
- 2.Be5#
- 2.Qxf7#
- 1...Qa8
- 2.Se4#
- 2.Be5#
- 2.Qf7#
- 1...Qb8
- 2.Se4#
- 2.Be5#
- 2.Qf7#
- 1...Qc8
- 2.Se4#
- 2.Be5#
- 2.Qf7#
- 1...Qd8
- 2.Se4#
- 2.Be5#
- 2.Qf7#
- 1...Sc3
- 2.Sxe8#
- 2.Be5#
- 1...Sc5
- 2.Sxe8#
- 2.Be5#
- 1...Sf5
- 2.Qxf5#
- 1...Sc6
- 2.Qf5#
- 1...Sg6
- 2.Qf5#
- 1...Sc8
- 2.Be5#
- 2.Qf5#
- 1...Sg8
- 2.Be5#
- 2.Qf5#
- 1...Qxh5!
- threat
- 1.Qe4?
- threat
- 2.Be5#
- 1...Sxd5
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sc6
- 2.Qf5#
- 1...Sg6
- 2.Qf5#
- 1...Qh5!
- threat
- 1.Qf4+?
- 1...Sf5
- 2.Qxf5#
- 1...Kg6!
- 1...Sf5
- 1.h5?
- threat
- 2.Qd4#
- 2.Qh4#
- 1...Sxd5
- 2.Qf5#
- 1...Qg6
- 2.Qd4#
- 1...Sf5
- 2.Qxf5#
- 1...Sc6
- 2.Qf3#
- 2.Qf5#
- 2.Qf4#
- 2.Qh4#
- 1...Sg6
- 2.Qf5#
- 1...Qxh5!
- threat
- 1.Sd8?
- Keys
- 1.Sg7!
- threat
- 2.Sgxe8#
- 1...Bxg7
- 2.Qe6#
- 1...Qg6
- 2.Qd4#
- 1...Qb5
- 2.Sh5#
- 1...Qh5
- 2.Sxh5#
- 1...Qc6
- 2.Sh5#
- 1...Qd7
- 2.Sh5#
- 1...Qf7
- 2.Se4#
- 1...Qa8
- 2.Sh5#
- 1...Qb8
- 2.Sh5#
- 1...Qc8
- 2.Sh5#
- 1...Qd8
- 2.Sh5#
- threat
- 1.Sg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 8
- REMOVED MATES = 7
- Sets
- Q(e);SBLOCK::QAB(C)
- Q(e);SBLOCK::S(F)
- B(f);N_GUARD::QAB1(C),XB(f)
- S(d);N_GUARD,P_PINS(F),XP(E)::QAR1(C)
- S(d);N_GUARD,P_PINS(F)::QAR1(C),XS(d)
- S(d);N_GUARD,P_PINS(F)::QAR1(C)
- P(c);N_GUARD::QAB1(C)
- Tries
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- S(d);N_GUARD,P_PINS(F),XP(E)::QAR1(C)
- Q(e);SBLOCK::QAB(C)
- Q(e);::S(F)
- S(a);::S(F),XQ(e)
- S(d);N_GUARD,P_PINS(F)::QAR1(C),XS(d)
- S(d);N_GUARD,P_PINS(F)::QAR1(C)
- Refutation
- Q(e);XS(G)
- Try
- S(G);XB(f)
- Threat
- DUALS(2)
- Vars
- Q(e);::QAB(C)
- Refutation
- Q(e);XS(G)
- Try
- Q(C);CHECK
- Vars
- S(d);N_GUARD,P_PINS(F),P_SPINS(d)::QAR1(C),XS(d)
- Refutation
- K(b);P-FLIGHT
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- S(d);N_GUARD,P_PINS(F),XP(E)::QAR1(C)
- S(d);N_GUARD,P_PINS(F)::QAR1(C),XS(d)
- S(d);N_GUARD,P_PINS(F)::QAR1(C)
- Refutation
- Q(e);XQ(C)
- Try
- Q(C);
- Threat
- B(A)
- Vars
- S(d);N_GUARD,P_PINS(F),XP(E)::QAR1(C)
- S(d);N_GUARD,P_PINS(F)::QAR1(C),XS(d)
- S(d);N_GUARD,P_PINS(F)::QAR1(C)
- Refutation
- Q(e);
- Try
- Q(C);CHECK
- Vars
- S(d);N_GUARD,P_PINS(F),P_SPINS(d)::QAR1(C),XS(d)
- Refutation
- K(b);P-FLIGHT
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- S(d);N_GUARD,P_PINS(F),XP(E)::QAR1(C)
- Q(e);::QAB(C)
- S(d);N_GUARD,P_PINS(F)::QAR1(C),XS(d)
- S(d);N_GUARD,P_PINS(F)::QAR1(C)
- Refutation
- Q(e);XP(D)
- Try
- Actual
- S(G);
- Threat
- S(G),XQ(e)
- Vars
- B(f);SBLOCK,XS(G)::QAR1(C)
- Q(e);SBLOCK::QAB(C)
- Q(e);N_GUARD::S(G)
- Q(e);N_GUARD::S(G),XQ(e)
- Q(e);SBLOCK::S(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).