MESON Chess Problem Database
Problem Display
PID: 34282 (1K6/1pP2P2/1Rqbk1P1/2RN4/B4P1B/2NQ1p2/8/8 w - - 0 1)
Harley, Brian
The Problemist, 1945
#2
12 + 5
| 3105 | FIDE Album (1945-1955) | 1964 |
SOLUTION
- SOUND
- Sets
- 1...Kd7
- 2.Qf5#
- 1...Qxa4
- 2.f8S#
- 1...Qb5
- 2.f8S#
- 1...Qxd5
- 2.Qxd5#
- 2.f8S#
- 1...Qd7
- 2.Qe4#
- 2.f8S#
- 1...Qe8+
- 2.fxe8Q#
- 2.fxe8R#
- 1...Qxc5
- 2.Qe4#
- 2.f8S#
- 1...Qxc7+
- 2.Sxc7#
- 1...Bxf4
- 2.Sxf4#
- 1...Bxc7+
- 2.Sxc7#
- 1...f2
- 2.Qh3#
- 1...Kd7
- Tries
- 1.Bb3?
- 1...Qe8+
- 2.fxe8Q#
- 1...Bxc7+
- 2.Sxc7#
- 1...Kd7
- 2.Qf5#
- 1...Qxd5
- 2.f8S#
- 1...Qxc5
- 2.f8S#
- 1...Qxb6
- 2.Sxb6#
- 1...Bxf4
- 2.Se3#
- 2.Sb4#
- 2.Sxf4#
- 2.Se7#
- 1...Bxc5
- 2.Se3#
- 2.Sb4#
- 2.Se7#
- 1...Be5
- 2.Se3#
- 2.Sb4#
- 2.Se7#
- 1...Be7
- 2.Se3#
- 2.Sb4#
- 2.Sf6#
- 2.Sxe7#
- 1...Bf8
- 2.Se3#
- 2.Sb4#
- 2.Se7#
- 1...Qa4
- 2.f8S#
- 1...Qb5
- 2.f8S#
- 1...Qd7
- 2.Se3#
- 2.Sb4#
- 2.Se7#
- 2.Qe4#
- 2.f8S#
- 1...f2
- 2.Qh3#
- 1...Qxc7+!
- 1...Qe8+
- 1.Rcxc6?
- threat
- 2.Rxd6#
- 2.f8S#
- 1...Kd7
- 2.Rxd6#
- 2.Qf5#
- 1...bxc6!
- threat
- 1.Rbxc6?
- threat
- 2.f8S#
- 1...Kd7
- 2.Qf5#
- 1...bxc6!
- threat
- 1.Qe4+?
- 1...Kd7
- 2.Sf6#
- 2.Qf5#
- 2.Qe8#
- 1...Be5!
- 1...Kd7
- 1.f5+?
- 1...Ke5
- 2.Bg3#
- 2.Bf6#
- 2.Qe4#
- 1...Kd7!
- 1...Ke5
- 1.f8Q?
- threat
- 2.Qdf5#
- 2.Qff5#
- 2.Qf7#
- 1...Qe8+
- 2.Qxe8#
- 1...Qxc7+
- 2.Sxc7#
- 1...Bxc7+
- 2.Sxc7#
- 1...Kd7
- 2.Qdf5#
- 2.Qc8#
- 1...Qxd5
- 2.Qe7#
- 2.Qxd5#
- 2.Qf6#
- 2.Qf7#
- 2.Qc8#
- 2.Qe8#
- 2.Qg8#
- 1...Bxf4
- 2.Sxf4#
- 2.Qdf5#
- 2.Qe7#
- 1...Bxc5
- 2.Qdf5#
- 2.c8Q#
- 2.c8B#
- 1...Be7
- 2.Qxe7#
- 1...Be5
- 2.Qdf5#
- 2.Qe7#
- 1...Qd7
- 2.Qe4#
- 2.Qdf5#
- 2.Qe3#
- 2.Qff5#
- 2.Qf6#
- 1...Bxf8!
- threat
- 1.Bb3?
- Keys
- 1.Sb5!
- 1...Qe8+
- 2.fxe8Q#
- 1...Qxc7+
- 2.Sbxc7#
- 1...Bxc7+
- 2.Sdxc7#
- 1...Kd7
- 2.Qf5#
- 1...Qxb5
- 2.f8S#
- 1...Qxd5
- 2.f8S#
- 1...Qxc5
- 2.f8S#
- 1...Qxb6
- 2.Sd4#
- 1...Bxf4
- 2.Sxf4#
- 1...Bxc5
- 2.c8Q#
- 2.c8B#
- 1...Qd7
- 2.Sd4#
- 2.Qe4#
- 2.f8S#
- 1...Be5
- 2.f8S#
- 1...Be7
- 2.c8Q#
- 2.c8B#
- 1...Bf8
- 2.c8Q#
- 2.c8B#
- 1...f2
- 2.Qh3#
- 1...Qe8+
- 1.Sb5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- K(d);P_SPINQ(b),S_FLIGHT::QAB(B)
- Q(b);P_SPINB(c),XB(C)::P=S
- Q(b);P_SPINB(c)::P=S
- Q(b);CHECK,OGATE,P_SPINB(c)::PXQ(b)=Q
- Q(b);CHECK,P_SPINB(c),XP(J)::S(G),XQ(b)
- B(c);P_SPINQ(b),XP(D)::S(G),XB(c)
- B(c);CHECK,P_SPINQ(b),XP(J)::S(G),XB(c)
- P(a);OGATE::QAB(B)
- Tries
- Try
- B(C);
- Vars
- Q(b);CHECK,OGATE,P_SPINB(c)::PXQ(b)=Q
- B(c);CHECK,P_SPINQ(b),XP(J)::B(C)+S(G),DCHECK,XB(c)
- K(d);S_FLIGHT::QAB(B)
- Q(b);P_SPINB(c),P_SPINQ(b),XS(G)::P=S
- Q(b);P_SPINB(c),XR(F)::P=S
- Q(b);XR(H)::B(C)+S(G),XQ(b)
- Q(b);P_SPINB(c)::P=S
- P(a);OGATE::QAB(B)
- Refutation
- Q(b);CHECK,P_SPINB(c),XP(J)
- Try
- R(F);P_PINB(c),XQ(b)
- Threat
- DUALS(2)
- Refutation
- P(e);N_SPINB(c),XR(F)
- Try
- R(H);P_PINB(c),XQ(b)
- Threat
- P=S
- Vars
- K(d);N_SPINB(c),S_FLIGHT::QAB(B)
- Refutation
- P(e);N_SPINB(c),XR(H)
- Try
- Q(B);CHECK
- Refutation
- B(c);P_SPINB(c),P_SPINQ(b)
- Try
- P(D);CHECK
- Refutation
- K(d);P_SPINQ(b),S_FLIGHT
- Try
- P(K);
- Threat
- DUALS(3)
- Vars
- Q(b);CHECK,N_GUARD,P_SPINB(c)::QAR2(K),XQ(b)
- Q(b);CHECK,P_SPINB(c),XP(J)::S(G),XQ(b)
- B(c);CHECK,P_SPINQ(b),XP(J)::S(G),XB(c)
- B(c);N_GUARD,N_PINP(J),P_SPINQ(b)::QAR1(K),XB(c)
- Refutation
- B(c);N_PINP(J),P_SPINQ(b),XQ(K)
- Try
- Actual
- S(A);
- Vars
- Q(b);CHECK,OGATE,P_SPINB(c)::PXQ(b)=Q
- Q(b);CHECK,P_SPINB(c),XP(J)::S(A),XQ(b)
- B(c);CHECK,P_SPINQ(b),XP(J)::S(G),XB(c)
- K(d);S_FLIGHT::QAB(B)
- Q(b);P_SPINB(c),XS(A)::P=S
- Q(b);P_SPINB(c),XS(G)::P=S
- Q(b);P_SPINB(c),XR(F)::P=S
- Q(b);XR(H)::S(A)
- B(c);P_SPINQ(b),XP(D)::S(G),XB(c)
- B(c);N_PINP(J),P_SPINQ(b),XR(F)::P=Q
- B(c);N_GUARD,P_SPINQ(b)::P=S
- B(c);N_PINP(J),P_SPINQ(b)::P=Q
- P(a);OGATE::QAB(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).