MESON Chess Problem Database
Problem Display
PID: 29783 (b4bq1/K2N4/Q4P1p/2pk1N1B/2p5/2P2n2/3nR3/8 w - - 0 1)
Shire, David J
The Problemist, 1986
#2
8 + 9
| 3256 | David Shire Selected Chess Problems | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Qe6
- 2.Qxe6#
- 1...Qf7
- 2.Bxf7#
- 1...Qh7
- 2.Qe6#
- 1...Qg1
- 2.Bf7#
- 2.Qe6#
- 1...Qg2
- 2.Bf7#
- 2.Qe6#
- 1...Qg3
- 2.Bf7#
- 2.Qe6#
- 1...Qg4
- 2.Bf7#
- 2.Qe6#
- 1...Qg5
- 2.Bf7#
- 2.Qe6#
- 1...Qg6
- 2.Qe6#
- 1...Qg7
- 2.Qe6#
- 1...Qh8
- 2.Bf7#
- 2.Qe6#
- 1...Bc6
- 2.Sb6#
- 1...Bb7
- 2.Qxb7#
- 1...Bd6
- 2.Qxd6#
- 1...Be7
- 2.Sxe7#
- 1...Bg7
- 2.Se7#
- 2.Qd6#
- 1...Sb1
- 2.Bxf3#
- 1...Sf1
- 2.Bxf3#
- 1...Sb3
- 2.Bxf3#
- 1...Se4
- 2.Se3#
- 1...Se1
- 2.Re5#
- 1...Sg1
- 2.Re5#
- 1...Sh2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Qe6
- Tries
- 1.Bxf3+?
- 1...Se4
- 2.Se3#
- 2.Bxe4#
- 2.Rd2#
- 1...Sxf3!
- 1...Se4
- 1.Bg6?
- threat
- 2.Se3#
- 1...Qxg6
- 2.Qe6#
- 1...Qe6
- 2.Qxe6#
- 1...Bc6
- 2.Sb6#
- 1...Bd6
- 2.Qxd6#
- 1...Sf1!
- threat
- 1.Re1?
- 1...Qg4
- 2.Bf7#
- 2.Qe6#
- 1...Qe6
- 2.Qxe6#
- 1...Qf7
- 2.Bxf7#
- 1...Qh7
- 2.Qe6#
- 1...Qg1
- 2.Bf7#
- 2.Qe6#
- 1...Qg2
- 2.Bf7#
- 2.Qe6#
- 1...Qg3
- 2.Bf7#
- 2.Qe6#
- 1...Qg5
- 2.Bf7#
- 2.Qe6#
- 1...Qg6
- 2.Qe6#
- 1...Qg7
- 2.Qe6#
- 1...Qh8
- 2.Bf7#
- 2.Qe6#
- 1...Bc6
- 2.Sb6#
- 1...Bb7
- 2.Qxb7#
- 1...Bd6
- 2.Qxd6#
- 1...Be7
- 2.Sxe7#
- 1...Bg7
- 2.Se7#
- 2.Qd6#
- 1...Sb1
- 2.Bxf3#
- 1...Sf1
- 2.Bxf3#
- 1...Sb3
- 2.Bxf3#
- 1...Se4
- 2.Se3#
- 1...Sg1
- 2.Re5#
- 1...Sh2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Sxe1!
- 1...Qg4
- 1.Re3?
- 1...Qg4
- 2.Bf7#
- 2.Qe6#
- 1...Qe6
- 2.Qxe6#
- 1...Qf7
- 2.Bxf7#
- 1...Qh7
- 2.Qe6#
- 1...Qg1
- 2.Bf7#
- 2.Qe6#
- 1...Qg2
- 2.Bf7#
- 2.Qe6#
- 1...Qg3
- 2.Bf7#
- 2.Qe6#
- 1...Qg5
- 2.Bf7#
- 2.Qe6#
- 1...Qg6
- 2.Qe6#
- 1...Qg7
- 2.Qe6#
- 1...Qh8
- 2.Bf7#
- 2.Qe6#
- 1...Bc6
- 2.Sb6#
- 1...Bb7
- 2.Qxb7#
- 1...Bd6
- 2.Qxd6#
- 1...Be7
- 2.Sxe7#
- 1...Bg7
- 2.Se7#
- 2.Qd6#
- 1...Sb1
- 2.Bxf3#
- 1...Sf1
- 2.Bxf3#
- 1...Sb3
- 2.Bxf3#
- 1...Se1
- 2.Re5#
- 1...Sg1
- 2.Re5#
- 1...Sh2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Se4!
- 1...Qg4
- 1.Re7?
- threat
- 2.Se3#
- 2.Qd6#
- 1...Qe6
- 2.Qxe6#
- 1...Se5
- 2.Rxe5#
- 1...Qg1
- 2.Bf7#
- 2.Qd6#
- 2.Qe6#
- 1...Qg3
- 2.Se3#
- 2.Bf7#
- 2.Qe6#
- 1...Qg5
- 2.Bf7#
- 2.Qd6#
- 2.Qe6#
- 1...Bc6
- 2.Sb6#
- 1...Sf1
- 2.Bxf3#
- 2.Qd6#
- 1...Se4
- 2.Se3#
- 1...Bxe7!
- threat
- 1.Re8?
- threat
- 2.Se3#
- 1...Qe6
- 2.Qxe6#
- 1...Se5
- 2.Rxe5#
- 1...Qg1
- 2.Bf7#
- 2.Qe6#
- 1...Qg5
- 2.Bf7#
- 2.Qe6#
- 1...Bc6
- 2.Sb6#
- 1...Sf1
- 2.Bxf3#
- 1...Be7!
- threat
- 1.Qb6?
- 1...Qg4
- 2.Bf7#
- 2.Qe6#
- 1...Qe6
- 2.Qxe6#
- 1...Qf7
- 2.Bxf7#
- 1...Qh7
- 2.Qe6#
- 1...Qg1
- 2.Bf7#
- 2.Qe6#
- 1...Qg2
- 2.Bf7#
- 2.Qe6#
- 1...Qg3
- 2.Bf7#
- 2.Qe6#
- 1...Qg5
- 2.Bf7#
- 2.Qe6#
- 1...Qg6
- 2.Qe6#
- 1...Qg7
- 2.Qe6#
- 1...Qh8
- 2.Bf7#
- 2.Qe6#
- 1...Bb7
- 2.Qxb7#
- 1...Bd6
- 2.Qxd6#
- 1...Be7
- 2.Sxe7#
- 1...Bg7
- 2.Se7#
- 2.Qxc5#
- 2.Qd6#
- 1...Sb1
- 2.Bxf3#
- 1...Sf1
- 2.Bxf3#
- 1...Sb3
- 2.Bxf3#
- 1...Se4
- 2.Se3#
- 1...Se1
- 2.Re5#
- 1...Sg1
- 2.Re5#
- 1...Sh2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Bc6!
- 1...Qg4
- 1.Qc6+?
- 1...Bxc6
- 2.Sb6#
- 1...Kxc6!
- 1...Bxc6
- 1.f7?
- threat
- 2.Sf6#
- 2.Qe6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Qxf7
- 2.Bxf7#
- 1...Qg4
- 2.Sf6#
- 2.Qe6#
- 1...Qh7
- 2.Sf6#
- 2.Qe6#
- 1...Qg1
- 2.Sf6#
- 2.Qe6#
- 1...Qg2
- 2.Sf6#
- 2.Qe6#
- 1...Qg3
- 2.Sf6#
- 2.Qe6#
- 1...Qg5
- 2.Qe6#
- 1...Qg7
- 2.Qe6#
- 1...Qh8
- 2.Qe6#
- 1...Bc6
- 2.Sb6#
- 2.Sf6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Bb7
- 2.Sf6#
- 2.Qxb7#
- 2.Qe6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Bd6
- 2.Sf6#
- 2.Qxd6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Be7
- 2.Sxe7#
- 2.Qe6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Bg7
- 2.Se7#
- 2.Qd6#
- 2.Qe6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sb1
- 2.Sf6#
- 2.Bxf3#
- 2.Qe6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sf1
- 2.Sf6#
- 2.Bxf3#
- 2.Qe6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sb3
- 2.Sf6#
- 2.Bxf3#
- 2.Qe6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Se1
- 2.Sf6#
- 2.Re5#
- 2.Qe6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sg1
- 2.Sf6#
- 2.Re5#
- 2.Qe6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sh2
- 2.Sf6#
- 2.Re5#
- 2.Qe6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sd4
- 2.Sf6#
- 2.Re5#
- 1...Sh4
- 2.Sf6#
- 2.Re5#
- 2.Qe6#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Se5
- 2.Sf6#
- 2.Rxe5#
- 1...Sg5
- 2.Sf6#
- 2.Re5#
- 1...Qg6!
- threat
- 1.Bxf3+?
- Keys
- 1.Be8!
- threat
- 2.Sb6#
- 1...Qe6
- 2.Qxe6#
- 1...Qf7
- 2.Bxf7#
- 1...Qh7
- 2.Qe6#
- 1...Qg7
- 2.Qe6#
- 1...Se4
- 2.Se3#
- 1...Se5
- 2.Rxe5#
- threat
- 1.Be8!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 14
- Sets
- Q(i);N_GUARD::QAB1(E),XQ(i)
- Q(i);N_GUARD,P_PINS(H)::B(D),XQ(i)
- Q(i);N_GUARD,P_PINS(H)::QAB1(E)
- Q(i);N_GUARD::QAB1(E)
- B(g);SBLOCK::S(H)
- B(g);N_GUARD::QAB(E),XB(g)
- B(h);N_GUARD::QAR1(E),XB(h)
- B(h);N_GUARD::S(C),XB(h)
- S(a);N_GUARD::B(D),XS(b)
- S(a);SBLOCK::S(C)
- S(b);N_GUARD::R1(A)
- S(b);N_GUARD::R1(A),XS(b)
- Tries
- Try
- B(D);CHECK,XS(b)
- Refutation
- S(a);XB(D)
- Try
- B(D);
- Threat
- S(C)
- Vars
- Q(i);N_GUARD,XB(D)::QAB1(E)
- Q(i);N_GUARD::QAB1(E),XQ(i)
- B(g);SBLOCK::S(H)
- B(h);N_GUARD::QAR1(E),XB(h)
- Refutation
- S(a);
- Try
- R(A);
- Vars
- Q(i);N_GUARD::QAB1(E),XQ(i)
- Q(i);N_GUARD,P_PINS(H)::B(D),XQ(i)
- Q(i);N_GUARD,P_PINS(H)::QAB1(E)
- Q(i);N_GUARD::QAB1(E)
- B(g);SBLOCK::S(H)
- B(g);N_GUARD::QAB(E),XB(g)
- B(h);N_GUARD::QAR1(E),XB(h)
- B(h);N_GUARD::S(C),XB(h)
- S(a);N_GUARD::B(D),XS(b)
- S(a);SBLOCK::S(C)
- S(b);N_GUARD::R1(A)
- S(b);N_GUARD::R1(A),XS(b)
- Refutation
- S(b);XR(A)
- Try
- R(A);
- Vars
- Q(i);N_GUARD::QAB1(E),XQ(i)
- Q(i);N_GUARD,P_PINS(H)::B(D),XQ(i)
- Q(i);N_GUARD,P_PINS(H)::QAB1(E)
- Q(i);N_GUARD::QAB1(E)
- B(g);SBLOCK::S(H)
- B(g);N_GUARD::QAB(E),XB(g)
- B(h);N_GUARD::QAR1(E),XB(h)
- B(h);N_GUARD::S(C),XB(h)
- S(a);N_GUARD::B(D),XS(b)
- S(b);N_GUARD::R1(A)
- S(b);N_GUARD::R1(A),XS(b)
- Refutation
- S(a);
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- Q(i);N_GUARD::QAB1(E),XQ(i)
- S(b);N_GUARD::R1(A),XS(b)
- B(g);SBLOCK::S(H)
- S(a);::S(C)
- Refutation
- B(h);XR(A)
- Try
- R(A);
- Threat
- S(C)
- Vars
- Q(i);N_GUARD::QAB1(E),XQ(i)
- S(b);N_GUARD::R1(A),XS(b)
- B(g);SBLOCK::S(H)
- S(a);N_GUARD::B(D),XS(b)
- Refutation
- B(h);
- Try
- Q(E);
- Vars
- Q(i);N_GUARD::QAB1(E),XQ(i)
- Q(i);N_GUARD,P_PINS(H)::B(D),XQ(i)
- Q(i);N_GUARD,P_PINS(H)::QAB1(E)
- Q(i);N_GUARD::QAB1(E)
- B(g);N_GUARD::QAB(E),XB(g)
- B(h);N_GUARD::QAR1(E),XB(h)
- B(h);N_GUARD::S(C),XB(h)
- S(a);N_GUARD::B(D),XS(b)
- S(a);SBLOCK::S(C)
- S(b);N_GUARD::R1(A)
- S(b);N_GUARD::R1(A),XS(b)
- Refutation
- B(g);
- Try
- Q(E);CHECK
- Vars
- B(g);SBLOCK,XQ(E)::S(H)
- Refutation
- K(e);S_FLIGHT,XQ(E)
- Try
- P(F);
- Threat
- DUALS(4)
- Vars
- Q(i);OGATE,P_PINS(H),XP(F)::B(D),XQ(i)
- Q(i);::QAB1(E)
- Refutation
- Q(i);
- Try
- Actual
- B(D);
- Threat
- S(H)
- Vars
- Q(i);N_GUARD::QAB1(E),XQ(i)
- Q(i);N_GUARD,P_PINS(H)::B(D),XQ(i)
- Q(i);N_GUARD,P_PINS(H)::QAB1(E)
- S(a);SBLOCK::S(C)
- S(b);N_GUARD::R1(A),XS(b)
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).