MESON Chess Problem Database
Problem Display
PID: 197092 (7K/2P2P2/prR1p3/N3krB1/p4N2/n1nPP2Q/8/8 w - - 0 1)
Moen, Kabe
The Problemist, 2018
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Rxf4
- 2.Qxe6#
- 1...Rxg5
- 2.Qxe6#
- 1...Rxf7
- 2.Qxe6#
- 1...Rb1
- 2.Rxe6#
- 1...Rb2
- 2.Rxe6#
- 1...Rb3
- 2.Rxe6#
- 1...Rb4
- 2.Rxe6#
- 1...Rb5
- 2.Rxe6#
- 1...Rb7
- 2.Rxe6#
- 1...Rb8+
- 2.cxb8Q#
- 2.cxb8B#
- 1...Sab1
- 2.Sc4#
- 1...Sc2
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sab5
- 2.Sc4#
- 1...Se4
- 2.d4#
- 1...Sd5
- 2.Sg6#
- 1...Rxf4
- Tries
- 1.Rxb6?
- threat
- 2.Rxe6#
- 1...Rxf4
- 2.Qxe6#
- 1...Rf6!
- threat
- 1.Qxf5+?
- 1...exf5
- 2.Bf6#
- 1...Kxf5!
- 1...exf5
- 1.Qh6?
- threat
- 2.Qxe6#
- 1...Rb8+
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rf6
- 2.Qxf6#
- 1...Rxc6!
- threat
- 1.c8Q?
- threat
- 2.Qxe6#
- 2.Qc7#
- 1...Rxf4
- 2.Qhxe6#
- 2.Qcxe6#
- 1...Rxg5
- 2.Qhxe6#
- 2.Qcxe6#
- 1...Rxf7
- 2.Qhxe6#
- 2.Qcxe6#
- 1...Rf6
- 2.Qc7#
- 1...Rb7
- 2.Rxe6#
- 2.Qxe6#
- 1...Rb8
- 2.Rxe6#
- 2.Qxb8#
- 1...Sc4
- 2.Sxc4#
- 2.Qxe6#
- 1...Sab5
- 2.Sc4#
- 2.Qxe6#
- 1...Se4
- 2.Qxe6#
- 2.d4#
- 1...Scb5
- 2.Qxe6#
- 1...Sd5
- 2.Sg6#
- 2.Qxe6#
- 1...Rxc6!
- threat
- 1.c8S?
- 1...Rxf4
- 2.Qxe6#
- 1...Rxg5
- 2.Qxe6#
- 1...Rxf7
- 2.Qxe6#
- 1...Rxc6
- 2.Sxc6#
- 1...Rb1
- 2.Rxe6#
- 1...Rb2
- 2.Rxe6#
- 1...Rb3
- 2.Rxe6#
- 1...Rb4
- 2.Rxe6#
- 1...Rb5
- 2.Rxe6#
- 1...Rb7
- 2.Rxe6#
- 1...Rb8
- 2.Rxe6#
- 1...Sab1
- 2.Sc4#
- 1...Sc2
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sab5
- 2.Sc4#
- 1...Scb1
- 2.Rc5#
- 1...Sd1
- 2.Rc5#
- 1...Sa2
- 2.Rc5#
- 1...Se2
- 2.Rc5#
- 1...Se4
- 2.d4#
- 1...Scb5
- 2.Rc5#
- 1...Sd5
- 2.Sg6#
- 1...Rf6!
- 1...Rxf4
- 1.f8Q?
- threat
- 2.Qd6#
- 1...Rxg5
- 2.Qxe6#
- 1...Rxc6
- 2.Sxc6#
- 1...Rb8
- 2.Rxe6#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Sc4
- 2.Sxc4#
- 1...Sab5
- 2.Sc4#
- 1...Se4
- 2.d4#
- 1...Scb5
- 2.Rc5#
- 2.Qc5#
- 1...Rxf8+!
- threat
- 1.f8B?
- threat
- 2.Bd6#
- 1...Rxf4
- 2.Qxe6#
- 1...Rxg5
- 2.Qxe6#
- 1...Rxc6
- 2.Sxc6#
- 1...Rb8
- 2.Rxe6#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Sc4
- 2.Sxc4#
- 1...Sab5
- 2.Sc4#
- 1...Se4
- 2.d4#
- 1...Scb5
- 2.Rc5#
- 1...Rxf8+!
- threat
- 1.Rxb6?
- Keys
- 1.Be7!
- 1...Rh5+
- 2.Qxh5#
- 1...Rb8+
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rxf4
- 2.Qxe6#
- 1...Rxf7
- 2.Qxe6#
- 1...Rxc6
- 2.Sxc6#
- 1...Rg5
- 2.Qxe6#
- 1...Rf6
- 2.Bd6#
- 1...Rb1
- 2.Rxe6#
- 1...Rb2
- 2.Rxe6#
- 1...Rb3
- 2.Rxe6#
- 1...Rb4
- 2.Rxe6#
- 1...Rb5
- 2.Rxe6#
- 1...Rb7
- 2.Rxe6#
- 1...Sab1
- 2.Sc4#
- 1...Sc2
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sab5
- 2.Sc4#
- 1...Scb1
- 2.Rc5#
- 1...Sd1
- 2.Rc5#
- 1...Sa2
- 2.Rc5#
- 1...Se2
- 2.Rc5#
- 1...Se4
- 2.d4#
- 1...Scb5
- 2.Rc5#
- 1...Sd5
- 2.Sg6#
- 1...Rh5+
- 1.Be7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- R(e);OGATE,XS(D)::QAR1(C),XP(h)
- R(e);OGATE,XB(F)::QAR1(C),XP(h)
- R(e);OGATE,XP(I)::QAR1(C),XP(h)
- R(g);N_GUARD::R1(G),XP(h)
- R(g);CHECK,OGATE::PXR(g)=Q
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(b);SBLOCK::P(A)
- S(b);SBLOCK::S(D)
- Tries
- Try
- R(G);XR(g)
- Threat
- R1(G),XP(h)
- Vars
- R(e);OGATE,XS(D)::QAR1(C),XP(h)
- Refutation
- R(e);
- Try
- Q(C);CHECK,XR(e)
- Vars
- P(h);SBLOCK,XQ(C)::B(F)
- Refutation
- K(d);P-FLIGHT,XQ(C)
- Try
- Q(C);
- Threat
- QAR1(C),XP(h)
- Vars
- R(g);CHECK,OGATE::PXR(g)=Q
- R(e);N_GUARD::QAB1(C),XR(e)
- Refutation
- R(g);XR(G)
- Try
- P(H);
- Threat
- DUALS(2)
- Vars
- R(e);::QAB(H)
- S(b);::QAR1(H),XP(h)
- Refutation
- R(g);XR(G)
- Try
- P(H);
- Vars
- R(e);OGATE,XS(D)::QAR1(C),XP(h)
- R(e);OGATE,XB(F)::QAR1(C),XP(h)
- R(e);OGATE,XP(I)::QAR1(C),XP(h)
- R(g);XR(G)::S(E),XR(g)
- R(g);N_GUARD::R1(G),XP(h)
- R(g);N_GUARD,P_PINS(H)::R1(G),XP(h)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(b);N_GUARD::R(G)
- S(b);SBLOCK::P(A)
- S(b);SBLOCK::S(D)
- Refutation
- R(e);
- Try
- P(I);
- Threat
- QAB1(I)
- Vars
- R(e);OGATE,XB(F)::QAR1(C),XP(h)
- R(g);XR(G)::S(E),XR(g)
- S(a);N_GUARD::S(E),XS(a)
- S(a);N_GUARD::S(E)
- S(b);SBLOCK::P(A)
- Refutation
- R(e);CHECK,XQ(I)
- Try
- P(I);
- Threat
- B(I)
- Vars
- R(e);OGATE,XS(D)::QAR1(C),XP(h)
- R(e);OGATE,XB(F)::QAR1(C),XP(h)
- R(g);XR(G)::S(E),XR(g)
- S(a);N_GUARD::S(E),XS(a)
- S(a);N_GUARD::S(E)
- S(b);SBLOCK::P(A)
- S(b);N_GUARD::R(G)
- Refutation
- R(e);CHECK,XB(I)
- Try
- Actual
- B(F);
- Vars
- R(e);CHECK,OGATEB::QAR(C),XR(e)
- R(g);CHECK,OGATE::PXR(g)=Q
- R(e);OGATE,XS(D)::QAR1(C),XP(h)
- R(e);OGATE,XP(I)::QAR1(C),XP(h)
- R(g);XR(G)::S(E),XR(g)
- R(e);OGATE::QAR1(C),XP(h)
- R(e);SBLOCK::B(F)
- R(g);N_GUARD::R1(G),XP(h)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(b);N_GUARD::R(G)
- S(b);SBLOCK::P(A)
- S(b);SBLOCK::S(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).