MESON Chess Problem Database
Problem Display
PID: 9932 (2B4n/6qp/7B/2p1N3/2PPk1NQ/6K1/7P/3R4 w - - 0 1)
Mansfield, Comins
The Problemist, 1960
#2
10 + 5
| 3550 | Complete Mansfield/II | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Qxe5+
- 2.Sxe5#
- 1...Qf6
- 2.Sf2#
- 2.Sxf6#
- 1...Qf8
- 2.Sf2#
- 2.Sf6#
- 1...Qxg4+
- 2.Qxg4#
- 1...Qa7
- 2.Sf2#
- 2.Se3#
- 2.Sf6#
- 1...Qb7
- 2.Sf2#
- 2.Se3#
- 2.Sf6#
- 1...Qc7
- 2.Sf2#
- 2.Se3#
- 2.Sf6#
- 1...Qe7
- 2.Sf2#
- 2.Sf6#
- 1...Qf7
- 2.Sf2#
- 2.Sf6#
- 1...Sg6
- 2.Sf2#
- 2.Sf6#
- 1...cxd4
- 2.Re1#
- 1...Qxe5+
- Tries
- 1.Kf2?
- threat
- 2.Sf6#
- 1...Qf6+
- 2.Sxf6#
- 1...Qxg4
- 2.Qxg4#
- 1...cxd4
- 2.Re1#
- 1...Qd7!
- threat
- 1.Bb7+?
- 1...Qxb7
- 2.Se3#
- 1...Kf5!
- 1...Qxb7
- 1.Qg5?
- threat
- 2.Sf2#
- 2.Bf5#
- 2.Qe3#
- 2.Qf4#
- 2.Qf5#
- 1...Qxe5+
- 2.Qxe5#
- 1...Qxh6
- 2.Sf2#
- 2.Bf5#
- 2.Qf5#
- 1...cxd4
- 2.Sf2#
- 2.Bf5#
- 2.Re1#
- 2.Qf4#
- 2.Qf5#
- 1...Qf6
- 2.Sxf6#
- 2.Qe3#
- 1...Qf8
- 2.Bb7#
- 2.Qe3#
- 1...Qg6
- 2.Sf2#
- 2.Qe3#
- 2.Qf4#
- 1...Qd7
- 2.Sf2#
- 2.Sf6#
- 2.Qf4#
- 1...Qf7
- 2.Qe3#
- 1...Sg6
- 2.Sf2#
- 2.Bf5#
- 2.Qe3#
- 2.Qf5#
- 1...Qxg5!
- threat
- 1.Qf6?
- threat
- 2.Bf5#
- 2.Qf3#
- 2.Qf4#
- 2.Qf5#
- 2.Qc6#
- 1...Qxf6
- 2.Sxf6#
- 1...Qxh6
- 2.Bf5#
- 2.Bb7#
- 2.Qf3#
- 2.Qf5#
- 1...Qg5
- 2.Bb7#
- 2.Qf3#
- 2.Qc6#
- 1...Qf8
- 2.Sf2#
- 2.Bf5#
- 2.Bb7#
- 2.Qc6#
- 1...Qg6
- 2.Bb7#
- 2.Qf3#
- 2.Qf4#
- 1...Qb7
- 2.Sf2#
- 2.Bf5#
- 2.Bxb7#
- 2.Qf3#
- 2.Qf4#
- 2.Qf5#
- 1...Qc7
- 2.Sf2#
- 2.Bf5#
- 2.Qf3#
- 2.Qf4#
- 2.Qf5#
- 1...Qd7
- 2.Sf2#
- 2.Qf3#
- 2.Qf4#
- 1...Qf7
- 2.Sf2#
- 2.Bf5#
- 1...Qg8
- 2.Bf5#
- 2.Qf3#
- 2.Qf4#
- 2.Qf5#
- 1...Sg6
- 2.Sf2#
- 2.Bf5#
- 2.Qf3#
- 2.Qf5#
- 2.Qc6#
- 1...Qxg4+!
- threat
- 1.Kf2?
- Keys
- 1.Qe7!
- 1...Qxe5+
- 2.Qxe5#
- 1...Qxg4+
- 2.Sxg4#
- 1...Qxh6
- 2.Sg6#
- 1...Qxe7
- 2.Sf2#
- 1...cxd4
- 2.Re1#
- 1...Qg5
- 2.Qb7#
- 1...Qf6
- 2.Sxf6#
- 1...Qf8
- 2.Qb7#
- 1...Qg6
- 2.Sxg6#
- 1...Qf7
- 2.Sxf7#
- 1...Qg8
- 2.Sf7#
- 1...Sg6
- 2.Sf2#
- 1...Sf7
- 2.Qb7#
- 1...Qxe5+
- 1.Qe7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 10
- REMOVED MATES = 0
- Sets
- Q(c);CHECK,N_PINS(F),XS(H)::QAR(G)+S(F),XQ(c)
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(F)::QAR2(G),XQ(c)
- P(b);SBLOCK,XP(E)::R(A)
- Tries
- Try
- K(C);N_SPINS(F),S_FLIGHT
- Threat
- QAR(G)+S(F),DCHECK
- Vars
- Q(c);CHECK::QAR(G)+S(F),DCHECK,XQ(c)
- Q(c);OGATE,P_SPINQ(c),XS(F)::QAR2(G),XQ(c)
- P(b);SBLOCK,XP(E)::R(A)
- Refutation
- Q(c);
- Try
- B(J);CHECK
- Vars
- Q(c);N_PINS(F),XB(J)::QAR(G)+S(F)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(G);N_SPINS(F)
- Threat
- DUALS(5)
- Vars
- Q(c);CHECK,OGATE,XS(H)::QAR1(G),XQ(c)
- Q(c);::QAR1(G)
- Refutation
- Q(c);P_PINS(F),XQ(G)
- Try
- Q(G);
- Threat
- DUALS(5)
- Vars
- Q(c);N_PINS(F),XQ(G)::S(F),XQ(c)
- Refutation
- Q(c);CHECK,XS(F)
- Try
- Actual
- Q(G);
- Vars
- Q(c);CHECK,N_PINS(F),OGATE,P_SPINQ(c),XS(H)::QAR1(G),XQ(c)
- Q(c);CHECK,XS(F)::QAR(G)+S(H),XQ(c)
- Q(c);N_GUARD,N_PINS(F),XB(I)::QAR(G)+S(H)
- Q(c);N_PINS(F),XQ(G)::S(F)
- P(b);SBLOCK,XP(E)::R(A)
- Q(c);N_GUARD::QAB(G)
- Q(c);N_PINS(F)::S(F),XQ(c)
- Q(c);N_GUARD,N_PINS(F)::QAB(G)
- Q(c);N_GUARD::QAR(G)+S(H),XQ(c)
- Q(c);N_GUARD,N_PINS(F)::QAR(G)+S(H),XQ(c)
- Q(c);N_GUARD::QAR(G)+S(H)
- S(e);N_PINS(F)::S(F)
- S(e);S_CUTQ(c)::QAB(G)
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).