MESON Chess Problem Database
Problem Display
PID: 68303 (1rk4n/P3BpRb/KpPP1RpP/4N2Q/3p3N/8/7n/1Bb5 w - - 0 1)
Kapustin, Fedor Mikhailovich
Comm., The Problemist, 2006
#2
12 + 10
| 56 | The Problemist | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Rb7
- 2.cxb7#
- 1...Bg8
- 2.Rxg8#
- 1...Sf1
- 2.Qg4#
- 1...Sf3
- 2.Qg4#
- 1...Sg4
- 2.Qxg4#
- 1...Rb7
- Tries
- 1.Sexg6?
- threat
- 2.Bf5#
- 2.Qf5#
- 1...Bxg6
- 2.Rg8#
- 1...fxg6
- 2.Rf8#
- 1...Bg5
- 2.Bf5#
- 1...d3
- 2.Qf5#
- 1...Rb7!
- threat
- 1.Sd7?
- threat
- 2.axb8Q#
- 2.axb8R#
- 1...Bxh6
- 2.axb8Q#
- 2.axb8R#
- 1...gxh5
- 2.axb8Q#
- 2.axb8R#
- 1...Ra8
- 2.Sxb6#
- 1...Bb2
- 2.axb8Q#
- 2.axb8R#
- 1...Bd2
- 2.axb8Q#
- 2.axb8R#
- 1...Ba3
- 2.axb8Q#
- 2.axb8R#
- 1...Be3
- 2.axb8Q#
- 2.axb8R#
- 1...Bf4
- 2.axb8Q#
- 2.axb8R#
- 1...Bg5
- 2.axb8Q#
- 2.axb8R#
- 1...Bg8
- 2.Rxg8#
- 2.axb8Q#
- 2.axb8R#
- 1...Sf1
- 2.axb8Q#
- 2.axb8R#
- 1...Sf3
- 2.axb8Q#
- 2.axb8R#
- 1...Sg4
- 2.axb8Q#
- 2.axb8R#
- 1...d3
- 2.axb8Q#
- 2.axb8R#
- 1...b5
- 2.axb8Q#
- 2.axb8R#
- 1...g5
- 2.axb8Q#
- 2.axb8R#
- 1...Rb7!
- threat
- 1.Bxg6?
- threat
- 2.Qf5#
- 1...Bxg6
- 2.Rg8#
- 1...fxg6
- 2.Rf8#
- 1...Rb7
- 2.cxb7#
- 1...Bg5!
- threat
- 1.Rfxg6?
- threat
- 2.Bf5#
- 2.Qf5#
- 1...Bxg6
- 2.Rg8#
- 1...Rb7
- 2.cxb7#
- 1...Bg5
- 2.Bf5#
- 1...d3
- 2.Qf5#
- 1...f5
- 2.Bxf5#
- 2.Qxf5#
- 1...fxg6!
- threat
- 1.Rgxg6?
- threat
- 2.Bf5#
- 2.Qf5#
- 1...fxg6
- 2.Rf8#
- 1...Rb7
- 2.cxb7#
- 1...Bg5
- 2.Bf5#
- 1...d3
- 2.Qf5#
- 1...Bxg6!
- threat
- 1.Qxg6?
- threat
- 2.Bf5#
- 1...Bxg6
- 2.Rg8#
- 1...fxg6
- 2.Rf8#
- 1...Rb7
- 2.cxb7#
- 1...d3!
- threat
- 1.Sexg6?
- Keys
- 1.Shxg6!
- threat
- 2.Bf5#
- 2.Qf5#
- 1...Bxg6
- 2.Rg8#
- 1...fxg6
- 2.Rf8#
- 1...Rb7
- 2.cxb7#
- 1...Bg5
- 2.Bf5#
- 1...d3
- 2.Qf5#
- threat
- 1.Shxg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- R(h);OGATE::P(F),XR(h)
- B(g);N_GUARD::R(L),XB(g)
- S(b);N_GUARD::QAB(D)
- S(b);N_GUARD::QAB(D),XS(b)
- Tries
- Try
- S(C);XP(e)
- Threat
- DUALS(2)
- Vars
- B(g);N_GUARD,XS(C)::R(L)
- P(f);OGATE,XS(C)::R(H)
- B(a);::B(A)
- P(c);::QAB(D)
- Refutation
- R(h);
- Try
- S(C);
- Threat
- PXR(h)=Q
- Vars
- B(a);XP(I)::PXR(h)=Q
- P(e);XQ(D)::PXR(h)=Q
- R(h);N_GUARD,P_PINP(J)::S(C),XP(d)
- B(a);::PXR(h)=Q
- S(b);::PXR(h)=Q
- P(c);::PXR(h)=Q
- P(d);::PXR(h)=Q
- P(e);::PXR(h)=Q
- Refutation
- R(h);
- Try
- B(A);XP(e)
- Threat
- QAB(D)
- Vars
- B(g);N_GUARD,XB(A)::R(L)
- P(f);OGATE,XB(A)::R(H)
- R(h);OGATE::P(F),XR(h)
- Refutation
- B(a);
- Try
- R(H);XP(e)
- Threat
- DUALS(2)
- Vars
- B(g);N_GUARD,XR(H)::R(L)
- R(h);OGATE::P(F),XR(h)
- B(a);::B(A)
- P(c);::QAB(D)
- Refutation
- P(f);XR(H)
- Try
- R(L);XP(e)
- Threat
- DUALS(2)
- Vars
- P(f);OGATE,XR(L)::R(H)
- R(h);OGATE::P(F),XR(h)
- B(a);::B(A)
- P(c);::QAB(D)
- Refutation
- B(g);XR(L)
- Try
- Q(D);XP(e)
- Threat
- B(A)
- Vars
- B(g);N_GUARD,XQ(D)::R(L)
- P(f);OGATE,XQ(D)::R(H)
- R(h);OGATE::P(F),XR(h)
- Refutation
- P(c);
- Try
- Actual
- S(B);XP(e)
- Threat
- DUALS(2)
- Vars
- B(g);N_GUARD,XS(B)::R(L)
- P(f);OGATE,XS(B)::R(H)
- R(h);OGATE::P(F),XR(h)
- B(a);::B(A)
- P(c);::QAB(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).