MESON Chess Problem Database
Problem Display
PID: 23784 (r2NqBN1/pPPPPb2/pn1kB1p1/n1R3K1/3P4/8/8/8 w - - 0 1)
Molnar, Arpad
Sakkelet, 1996
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Qxd7
- 2.e8S#
- 1...Qxe7+
- 2.Bxe7#
- 1...Qxd8
- 2.exd8S#
- 1...Qxf8
- 2.exf8Q#
- 2.exf8B#
- 1...Rb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...Bxg8
- 2.dxe8S#
- 1...Sb3
- 2.Rc6#
- 1...Sac4
- 2.Rc6#
- 1...Sc6
- 2.Rxc6#
- 1...Sxb7
- 2.Rc6#
- 1...Qxd7
- Tries
- 1.bxa8Q?
- 1...Qxe7+
- 2.Bxe7#
- 1...Qxd7
- 2.e8S#
- 1...Qxd8
- 2.exd8S#
- 1...Qxf8
- 2.exf8Q#
- 2.exf8B#
- 1...Bxg8
- 2.dxe8S#
- 1...Sxd7
- 2.Qd5#
- 2.c8S#
- 1...Sxa8
- 2.c8S#
- 1...Sc6
- 2.Rxc6#
- 2.Qxc6#
- 1...Sb3
- 2.Rc6#
- 2.Qc6#
- 1...Sac4
- 2.Rc6#
- 2.Qc6#
- 1...Sb7
- 2.Rc6#
- 1...Sa4
- 2.Qd5#
- 2.c8S#
- 1...Sbc4
- 2.Qd5#
- 2.c8S#
- 1...Sd5
- 2.Qxd5#
- 2.c8S#
- 1...Sc8
- 2.Qd5#
- 2.dxc8S#
- 1...Bxe6!
- 1...Qxe7+
- 1.bxa8S?
- 1...Qxe7+
- 2.Bxe7#
- 1...Qxd7
- 2.e8S#
- 1...Qxd8
- 2.exd8S#
- 1...Qxf8
- 2.exf8Q#
- 2.exf8B#
- 1...Bxg8
- 2.dxe8S#
- 1...Sxd7
- 2.Rd5#
- 2.c8S#
- 1...Sxa8
- 2.c8S#
- 1...Sb3
- 2.Rc6#
- 1...Sac4
- 2.Rc6#
- 1...Sc6
- 2.Rxc6#
- 1...Sb7
- 2.Rc6#
- 1...Sa4
- 2.Rd5#
- 2.c8S#
- 1...Sbc4
- 2.Rd5#
- 2.c8S#
- 1...Sd5
- 2.Rxd5#
- 2.c8S#
- 1...Sc8
- 2.Rd5#
- 2.dxc8S#
- 1...Bxe6!
- 1...Qxe7+
- 1.bxa8B?
- 1...Qxe7+
- 2.Bxe7#
- 1...Qxd7
- 2.e8S#
- 1...Qxd8
- 2.exd8S#
- 1...Qxf8
- 2.exf8Q#
- 2.exf8B#
- 1...Bxg8
- 2.dxe8S#
- 1...Sxd7
- 2.c8S#
- 1...Sxa8
- 2.c8S#
- 1...Sc6
- 2.Rxc6#
- 1...Sb3
- 2.Rc6#
- 1...Sac4
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sa4
- 2.c8S#
- 1...Sbc4
- 2.c8S#
- 1...Sd5
- 2.c8S#
- 1...Sc8
- 2.dxc8S#
- 1...Bxe6!
- 1...Qxe7+
- 1.bxa8R?
- 1...Qxe7+
- 2.Bxe7#
- 1...Qxd7
- 2.e8S#
- 1...Qxd8
- 2.exd8S#
- 1...Qxf8
- 2.exf8Q#
- 2.exf8B#
- 1...Bxg8
- 2.dxe8S#
- 1...Sxd7
- 2.c8S#
- 1...Sxa8
- 2.c8S#
- 1...Sc6
- 2.Rxc6#
- 1...Sb3
- 2.Rc6#
- 1...Sac4
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sa4
- 2.c8S#
- 1...Sbc4
- 2.c8S#
- 1...Sd5
- 2.c8S#
- 1...Sc8
- 2.dxc8S#
- 1...Bxe6!
- 1...Qxe7+
- 1.b8Q?
- threat
- 2.c8S#
- 1...Qxe7+
- 2.Bxe7#
- 1...Qxd8
- 2.exd8S#
- 1...Rxb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...Sc8
- 2.Rd5#
- 2.dxc8S#
- 1...Bxe6!
- threat
- 1.b8B?
- threat
- 2.c8S#
- 1...Qxe7+
- 2.Bxe7#
- 1...Qxd8
- 2.exd8S#
- 1...Rxb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...Sc8
- 2.Rd5#
- 2.dxc8S#
- 1...Bxe6!
- threat
- 1.b8R?
- 1...Qxe7+
- 2.Bxe7#
- 1...Qxd7
- 2.e8S#
- 1...Qxd8
- 2.exd8S#
- 1...Qxf8
- 2.exf8Q#
- 2.exf8B#
- 1...Rxb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...Bxg8
- 2.dxe8S#
- 1...Sxd7
- 2.c8S#
- 1...Sc6
- 2.Rxc6#
- 1...Sb3
- 2.Rc6#
- 1...Sac4
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sa4
- 2.c8S#
- 1...Sbc4
- 2.c8S#
- 1...Sd5
- 2.c8S#
- 1...Sc8
- 2.dxc8S#
- 1...Bxe6!
- 1...Qxe7+
- 1.bxa8Q?
- Keys
- 1.b8S!
- 1...Qxe7+
- 2.Bxe7#
- 1...Qxd7
- 2.e8S#
- 1...Qxd8
- 2.exd8S#
- 1...Qxf8
- 2.exf8Q#
- 2.exf8B#
- 1...Rxb8
- 2.cxb8Q#
- 2.cxb8B#
- 1...Bxe6
- 2.dxe8S#
- 1...Bxg8
- 2.dxe8S#
- 1...Sxd7
- 2.c8S#
- 1...Sc6
- 2.Rxc6#
- 1...Sb3
- 2.Rc6#
- 1...Sac4
- 2.Rc6#
- 1...Sb7
- 2.Rc6#
- 1...Sa4
- 2.c8S#
- 1...Sbc4
- 2.c8S#
- 1...Sd5
- 2.c8S#
- 1...Sc8
- 2.dxc8S#
- 1...Qxe7+
- 1.b8S!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- Q(i);OGATE,XP(G)::P=S
- Q(i);CHECK,OGATE,P_SPINQ(i),XP(H)::B(J),XQ(i)
- Q(i);OGATE,P_PINP(H),XS(I)::PXQ(i)=S
- Q(i);OGATE,XB(J)::PXQ(i)=Q
- R(h);OGATE::PXR(h)=Q
- B(g);N_GUARD,XS(K)::PXQ(i)=S
- S(a);N_GUARD::R1(B)
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD,XP(E)::R1(B)
- Tries
- Try
- P(E);XR(h)
- Vars
- Q(i);CHECK,OGATE,P_SPINQ(i),XP(H)::B(J),XQ(i)
- Q(i);OGATE,XP(G)::P=S
- Q(i);OGATE,P_PINP(H),XS(I)::PXQ(i)=S
- Q(i);OGATE,XB(J)::PXQ(i)=Q
- B(g);N_GUARD,XS(K)::PXQ(i)=S
- S(c);N_GUARD,XQ(E)::P=S
- S(a);N_GUARD::R1(B)
- Refutation
- B(g);XB(D)
- Try
- P(E);XR(h)
- Vars
- Q(i);CHECK,OGATE,P_SPINQ(i),XP(H)::B(J),XQ(i)
- Q(i);OGATE,XP(G)::P=S
- Q(i);OGATE,P_PINP(H),XS(I)::PXQ(i)=S
- Q(i);OGATE,XB(J)::PXQ(i)=Q
- B(g);N_GUARD,XS(K)::PXQ(i)=S
- S(c);N_GUARD,XS(E)::P=S
- S(a);N_GUARD::R1(B)
- S(a);N_GUARD::R1(B),XS(a)
- Refutation
- B(g);XB(D)
- Try
- P(E);XR(h)
- Vars
- Q(i);CHECK,OGATE,P_SPINQ(i),XP(H)::B(J),XQ(i)
- Q(i);OGATE,XP(G)::P=S
- Q(i);OGATE,P_PINP(H),XS(I)::PXQ(i)=S
- Q(i);OGATE,XB(J)::PXQ(i)=Q
- B(g);N_GUARD,XS(K)::PXQ(i)=S
- S(c);N_GUARD,XP(G)::P=S
- S(c);N_GUARD,XB(E)::P=S
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(B)
- S(c);N_GUARD::P=S
- S(c);OGATE::PXS(c)=S
- Refutation
- B(g);XB(D)
- Try
- P(E);XR(h)
- Vars
- Q(i);CHECK,OGATE,P_SPINQ(i),XP(H)::B(J),XQ(i)
- Q(i);OGATE,XP(G)::P=S
- Q(i);OGATE,P_PINP(H),XS(I)::PXQ(i)=S
- Q(i);OGATE,XB(J)::PXQ(i)=Q
- B(g);N_GUARD,XS(K)::PXQ(i)=S
- S(c);N_GUARD,XP(G)::P=S
- S(c);N_GUARD,XR(E)::P=S
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(B)
- S(c);N_GUARD::P=S
- S(c);OGATE::PXS(c)=S
- Refutation
- B(g);XB(D)
- Try
- P(E);
- Threat
- P=S
- Vars
- Q(i);CHECK,OGATE,P_SPINQ(i),XP(H)::B(J),XQ(i)
- Q(i);OGATE,P_PINP(H),XS(I)::PXQ(i)=S
- R(h);OGATE,XQ(E)::PXR(h)=Q
- Refutation
- B(g);XB(D)
- Try
- P(E);
- Threat
- P=S
- Vars
- Q(i);CHECK,OGATE,P_SPINQ(i),XP(H)::B(J),XQ(i)
- Q(i);OGATE,P_PINP(H),XS(I)::PXQ(i)=S
- R(h);OGATE,XB(E)::PXR(h)=Q
- Refutation
- B(g);XB(D)
- Try
- P(E);
- Vars
- Q(i);CHECK,OGATE,P_SPINQ(i),XP(H)::B(J),XQ(i)
- Q(i);OGATE,XP(G)::P=S
- Q(i);OGATE,P_PINP(H),XS(I)::PXQ(i)=S
- Q(i);OGATE,XB(J)::PXQ(i)=Q
- R(h);OGATE,XR(E)::PXR(h)=Q
- B(g);N_GUARD,XS(K)::PXQ(i)=S
- S(c);N_GUARD,XP(G)::P=S
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(B)
- S(c);N_GUARD::P=S
- S(c);OGATE::PXS(c)=S
- Refutation
- B(g);XB(D)
- Try
- Actual
- P(E);
- Vars
- Q(i);CHECK,OGATE,P_SPINQ(i),XP(H)::B(J),XQ(i)
- Q(i);OGATE,XP(G)::P=S
- Q(i);OGATE,P_PINP(H),XS(I)::PXQ(i)=S
- Q(i);OGATE,XB(J)::PXQ(i)=Q
- R(h);OGATE,XS(E)::PXR(h)=Q
- B(g);N_GUARD,XB(D)::PXQ(i)=S
- B(g);N_GUARD,XS(K)::PXQ(i)=S
- S(c);N_GUARD,XP(G)::P=S
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(B)
- S(c);N_GUARD::P=S
- S(c);OGATE::PXS(c)=S
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).