MESON Chess Problem Database
Problem Display
PID: 160195 (1Q1K1B1N/1BPPP3/Nq1k3r/p2PRpbb/n2p1P1p/3P3P/8/8 w - - 0 1)
Rice, John Michael
British Chess Magazine, 2004
#2
14 + 10
SOLUTION
- SOUND
- Sets
- 1...Qc5
- 2.c8S#
- 1...Qa7
- 2.c8S#
- 1...Qxc7+
- 2.Qxc7#
- 1...Qb1
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qb2
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qb3
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qb4
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qb5
- 2.c8Q#
- 2.c8S#
- 2.c8B#
- 2.c8R#
- 1...Qxa6
- 2.c8Q#
- 2.c8R#
- 1...Qc6
- 2.c8S#
- 1...Qxb7
- 2.c8S#
- 1...Re6
- 2.Rxe6#
- 1...Rf6
- 2.e8S#
- 1...Rg6
- 2.Sf7#
- 1...Rh7
- 2.Re6#
- 1...Rxh8
- 2.Re6#
- 1...Bxf4
- 2.e8Q#
- 2.e8R#
- 1...Bf6
- 2.Re6#
- 1...Bxe7+
- 2.Bxe7#
- 1...Bd1
- 2.Sf7#
- 1...Be2
- 2.Sf7#
- 1...Bf3
- 2.Sf7#
- 1...Bg4
- 2.Sf7#
- 1...Bg6
- 2.Re6#
- 1...Bf7
- 2.Sxf7#
- 1...Be8
- 2.dxe8S#
- 1...Qc5
- Tries
- 1.Kc8?
- threat
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Qxc7+
- 2.Qxc7#
- 1...Qxa6
- 2.e8S#
- 1...Rxh8
- 2.Re6#
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Bxf4
- 2.e8Q#
- 2.e8R#
- 1...Bxe7
- 2.Bxe7#
- 2.d8Q#
- 2.d8R#
- 1...Qc5
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Qa7
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Qb1
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Qb2
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Qb3
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Qb4
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Qb5
- 2.e8S#
- 1...Qc6
- 2.e8S#
- 1...Re6
- 2.Rxe6#
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Rf6
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Rg6
- 2.Sf7#
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Rh7
- 2.Re6#
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Bf6
- 2.Re6#
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Bd1
- 2.Sf7#
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Be2
- 2.Sf7#
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Bf3
- 2.Sf7#
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Bg4
- 2.Sf7#
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Bg6
- 2.Re6#
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Bf7
- 2.Sxf7#
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Be8
- 2.dxe8S#
- 1...Sb2
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Sc3
- 2.d8Q#
- 2.d8R#
- 2.e8S#
- 1...Sc5
- 2.e8S#
- 1...Qxb7+!
- threat
- 1.Kc8?
- Keys
- 1.Ba8!
- 1...Qxc7+
- 2.Qxc7#
- 1...Qxb8+
- 2.cxb8Q#
- 2.cxb8B#
- 1...Bxe7+
- 2.Bxe7#
- 1...Qxa6
- 2.c8Q#
- 2.c8R#
- 1...Rxh8
- 2.Re6#
- 1...Bxf4
- 2.e8Q#
- 2.e8R#
- 1...Qc5
- 2.c8S#
- 1...Qa7
- 2.c8S#
- 1...Qb1
- 2.c8S#
- 1...Qb2
- 2.c8S#
- 1...Qb3
- 2.c8S#
- 1...Qb4
- 2.c8S#
- 1...Qb5
- 2.c8S#
- 1...Qc6
- 2.c8S#
- 1...Qb7
- 2.c8S#
- 1...Re6
- 2.Rxe6#
- 1...Rf6
- 2.e8S#
- 1...Rg6
- 2.Sf7#
- 1...Rh7
- 2.Re6#
- 1...Bf6
- 2.Re6#
- 1...Bd1
- 2.Sf7#
- 1...Be2
- 2.Sf7#
- 1...Bf3
- 2.Sf7#
- 1...Bg4
- 2.Sf7#
- 1...Bg6
- 2.Re6#
- 1...Bf7
- 2.Sxf7#
- 1...Be8
- 2.dxe8S#
- 1...Sb2
- 2.Qxb6#
- 1...Sc3
- 2.Qxb6#
- 1...Sc5
- 2.Qxb6#
- 1...Qxc7+
- 1.Ba8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- Q(h);N_PINP(H),P_PINP(J)::P=S
- Q(h);CHECK,OGATE,P_PINP(J),P_SPINQ(h),XP(H)::QAB1(K),XQ(h)
- Q(h);N_PINP(H),P_PINP(J),XS(F)::P=Q
- Q(h);N_PINP(H),P_PINP(J),XB(G)::P=S
- R(j);N_GUARD::R1(E),XR(j)
- R(j);OGATE::P=S
- R(j);S_CUTB(g)::S(N)
- R(j);N_GUARD::R1(E)
- R(j);N_GUARD,P_PINB(M),XS(N)::R1(E)
- B(f);OGATE,XP(C)::P=Q
- B(f);S_CUTR(j)::R1(E)
- B(f);CHECK,OGATE,P_SPINB(f),XP(J)::B(M),XB(f)
- B(g);N_GUARD::S(N)
- B(g);S_CUTR(j)::R1(E)
- B(g);N_GUARD::S(N),XB(g)
- B(g);OGATE::PXB(g)=S
- Tries
- Try
- K(L);N_SPINP(H),P-FLIGHT
- Threat
- DUALS(3)
- Vars
- Q(h);CHECK,OGATE,P_SPINQ(h),XP(H)::QAB1(K),XQ(h)
- Q(h);P_PINB(G),XS(F)::P=S
- B(f);N_GUARD,XP(C)::P=Q
- Q(h);::P=S
- Q(h);P_PINP(H)::P=S
- B(g);OGATE::PXB(g)=S
- S(a);::P=S
- Refutation
- Q(h);CHECK,XB(G)
- Try
- Actual
- B(G);
- Vars
- Q(h);CHECK,OGATE,P_PINP(J),P_SPINQ(h),XP(H)::QAB1(K),XQ(h)
- Q(h);CHECK,N_PINP(H),P_PINP(J),XQ(K)::PXQ(h)=Q
- B(f);CHECK,OGATE,P_SPINB(f),XP(J)::B(M),XB(f)
- Q(h);N_PINP(H),P_PINP(J),XS(F)::P=Q
- R(j);N_GUARD,P_PINB(M),XS(N)::R1(E)
- B(f);OGATE,XP(C)::P=Q
- Q(h);N_PINP(H),P_PINP(J)::P=S
- R(j);N_GUARD::R1(E),XR(j)
- R(j);OGATE::P=S
- R(j);S_CUTB(g)::S(N)
- R(j);N_GUARD::R1(E)
- B(f);S_CUTR(j)::R1(E)
- B(g);N_GUARD::S(N)
- B(g);S_CUTR(j)::R1(E)
- B(g);N_GUARD::S(N),XB(g)
- B(g);OGATE::PXB(g)=S
- S(a);N_GUARD::QAR2(K),XQ(h)
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).