MESON Chess Problem Database
Problem Display
PID: 15971 (5nn1/KQ2bp2/RB1PkpP1/2P2p2/2P2P2/8/8/8 w - - 0 1)
Rice, John Michael
Comm., Cheltenham TT, 2000
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Bxd6
- 2.Qxf7#
- 1...Bd8
- 2.Qxf7#
- 1...Sxg6
- 2.Qc8#
- 1...Sd7
- 2.Qd5#
- 1...Sh7
- 2.Qc8#
- 1...Sh6
- 2.Qxe7#
- 1...Bxd6
- Tries
- 1.Ka8?
- 1...Bxd6
- 2.Qxf7#
- 1...Sxg6
- 2.Qc8#
- 1...Bd8
- 2.Qxf7#
- 1...Sd7
- 2.Qd5#
- 1...Sh7
- 2.Qc8#
- 1...Sh6
- 2.Qxe7#
- 1...fxg6!
- 1...Bxd6
- 1.Ba5?
- threat
- 2.dxe7#
- 1...Bxd6
- 2.Rxd6#
- 2.Qxf7#
- 1...Bd8
- 2.Qxf7#
- 1...Sd7
- 2.Qd5#
- 1...fxg6!
- threat
- 1.Bd8?
- threat
- 2.dxe7#
- 1...Bxd6
- 2.Rxd6#
- 2.Qxf7#
- 1...Bxd8
- 2.Qxf7#
- 1...Sd7
- 2.Qd5#
- 1...fxg6!
- threat
- 1.Ra1?
- threat
- 2.Re1#
- 1...Bxd6
- 2.Qxf7#
- 1...Sxg6
- 2.Qc8#
- 1...Sd7
- 2.Qd5#
- 1...fxg6!
- threat
- 1.Ra2?
- threat
- 2.Re2#
- 1...Bxd6
- 2.Qxf7#
- 1...Sxg6
- 2.Qc8#
- 1...Sd7
- 2.Qd5#
- 1...fxg6!
- threat
- 1.Ra3?
- threat
- 2.Re3#
- 1...Bxd6
- 2.Qxf7#
- 1...Sxg6
- 2.Qc8#
- 1...Sd7
- 2.Qd5#
- 1...fxg6!
- threat
- 1.Ra4?
- 1...Bxd6
- 2.Qxf7#
- 1...Sxg6
- 2.Qc8#
- 1...Bd8
- 2.Qxf7#
- 1...Sd7
- 2.Qd5#
- 1...Sh7
- 2.Qc8#
- 1...Sh6
- 2.Qxe7#
- 1...fxg6!
- 1...Bxd6
- 1.Ra5?
- 1...Bxd6
- 2.Qxf7#
- 1...Sxg6
- 2.Qc8#
- 1...Bd8
- 2.Qxf7#
- 1...Sd7
- 2.Qd5#
- 1...Sh7
- 2.Qc8#
- 1...Sh6
- 2.Qxe7#
- 1...fxg6!
- 1...Bxd6
- 1.gxf7?
- threat
- 2.fxg8Q#
- 2.fxg8B#
- 1...Bxd6
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sd7
- 2.Qd5#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Bd8
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sg6
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sh7
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sh6
- 2.Qxe7#
- 1...Kxf7!
- threat
- 1.g7?
- 1...Sd7
- 2.Qd5#
- 1...Bd8
- 2.gxf8S#
- 1...Sg6
- 2.Qc8#
- 1...Sh7
- 2.Qc8#
- 1...Sh6
- 2.Qxe7#
- 1...Bxd6!
- 1...Sd7
- 1.Ka8?
- Keys
- 1.d7!
- threat
- 2.Qd5#
- 1...Bxc5
- 2.Bxc5#
- 1...Bd6
- 2.d8S#
- 1...Bd8
- 2.Bxd8#
- threat
- 1.d7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- B(d);OGATE,XP(F)::QAB1(I),XP(e)
- B(d);OGATE::QAB1(I),XP(e)
- S(f);N_GUARD,XP(G)::QAB(I)
- S(f);SBLOCK::QAB1(I)
- S(f);N_GUARD::QAB(I)
- S(g);N_GUARD::QAR1(I),XB(d)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- B(d);OGATE,XP(F)::QAB1(I),XP(e)
- S(f);N_GUARD,XP(G)::QAB(I)
- B(d);OGATE::QAB1(I),XP(e)
- S(f);SBLOCK::QAB1(I)
- S(f);N_GUARD::QAB(I)
- S(g);N_GUARD::QAR1(I),XB(d)
- Refutation
- P(e);XP(G)
- Try
- B(E);
- Threat
- R(D)+P(F),XB(d)
- Vars
- B(d);OGATE::QAB1(I),XP(e)
- S(f);SBLOCK::QAB1(I)
- Refutation
- P(e);XP(G)
- Try
- B(E);
- Threat
- R(D)+P(F),XB(d)
- Vars
- B(d);OGATE,XB(E)::QAB1(I),XP(e)
- S(f);SBLOCK::QAB1(I)
- Refutation
- P(e);XP(G)
- Try
- R(D);
- Threat
- R(D)
- Vars
- B(d);OGATE,XP(F)::QAB1(I),XP(e)
- S(f);N_GUARD,XP(G)::QAB(I)
- S(f);SBLOCK::QAB1(I)
- Refutation
- P(e);XP(G)
- Try
- R(D);
- Threat
- R(D)
- Vars
- B(d);OGATE,XP(F)::QAB1(I),XP(e)
- S(f);N_GUARD,XP(G)::QAB(I)
- S(f);SBLOCK::QAB1(I)
- Refutation
- P(e);XP(G)
- Try
- R(D);
- Threat
- R(D)
- Vars
- B(d);OGATE,XP(F)::QAB1(I),XP(e)
- S(f);N_GUARD,XP(G)::QAB(I)
- S(f);SBLOCK::QAB1(I)
- Refutation
- P(e);XP(G)
- Try
- R(D);
- Vars
- B(d);OGATE,XP(F)::QAB1(I),XP(e)
- S(f);N_GUARD,XP(G)::QAB(I)
- B(d);OGATE::QAB1(I),XP(e)
- S(f);SBLOCK::QAB1(I)
- S(f);N_GUARD::QAB(I)
- S(g);N_GUARD::QAR1(I),XB(d)
- Refutation
- P(e);XP(G)
- Try
- R(D);
- Vars
- B(d);OGATE,XP(F)::QAB1(I),XP(e)
- S(f);N_GUARD,XP(G)::QAB(I)
- B(d);OGATE::QAB1(I),XP(e)
- S(f);SBLOCK::QAB1(I)
- S(f);N_GUARD::QAB(I)
- S(g);N_GUARD::QAR1(I),XB(d)
- Refutation
- P(e);XP(G)
- Try
- P(G);XP(e)
- Threat
- PXS(g)=Q
- Vars
- B(d);XP(F)::PXS(g)=Q
- B(d);::PXS(g)=Q
- S(f);::PXS(g)=Q
- S(g);N_GUARD::QAR1(I),XB(d)
- Refutation
- K(b);P_SPINB(d),S_FLIGHT,XP(G)
- Try
- P(G);
- Vars
- S(f);SBLOCK::QAB1(I)
- B(d);N_GUARD::PXS(f)=S
- S(f);N_GUARD::QAB(I)
- S(g);N_GUARD::QAR1(I),XB(d)
- Refutation
- B(d);XP(F)
- Try
- Actual
- P(F);
- Threat
- QAB1(I)
- Vars
- B(d);OGATE,P_PINB(E),XP(C)::R(D)+B(E),XB(d)
- B(d);N_GUARD::P=S
- B(d);N_GUARD::R(D)+B(E),XB(d)
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).