MESON Chess Problem Database
Problem Display
PID: 194154 (2N3rB/1p4P1/1R1b2p1/2p1kpN1/K1P2RpP/p3P1P1/p1P5/rn2Q3 w - - 0 1)
Clarke, Thomas Denton
Brisbane Courier, 1917
#2
13 + 12
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rxg7
- 2.Bxg7#
- 1...Rxc8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Rd8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Re8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Rf8
- 2.gxf8Q#
- 2.gxf8S#
- 2.gxf8B#
- 2.gxf8R#
- 1...Rxh8
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bc7
- 2.Sf7#
- 2.Re6#
- 1...Be7
- 2.Sf7#
- 2.Re6#
- 1...Bb8
- 2.Sf7#
- 2.Re6#
- 1...Bf8
- 2.Sf7#
- 2.Re6#
- 1...Sd2
- 2.Qxa1#
- 1...Sc3+
- 2.Qxc3#
- 1...Rxg7
- Tries
- 1.Ka5?
- 1...Rxg7
- 2.Bxg7#
- 1...Rxc8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Rxh8
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rd8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Re8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Rf8
- 2.gxf8Q#
- 2.gxf8S#
- 2.gxf8B#
- 2.gxf8R#
- 1...Bc7
- 2.Sf7#
- 1...Be7
- 2.Sf7#
- 2.Re6#
- 1...Bb8
- 2.Sf7#
- 2.Re6#
- 1...Bf8
- 2.Sf7#
- 2.Re6#
- 1...Sd2
- 2.Qxa1#
- 1...Sc3
- 2.Qxc3#
- 1...Kf6!
- 1...Rxg7
- 1.Kb5?
- 1...Sc3+
- 2.Qxc3#
- 1...Rxg7
- 2.Bxg7#
- 1...Rxc8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Rxh8
- 2.gxh8Q#
- 2.gxh8B#
- 1...Rd8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Re8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Rf8
- 2.gxf8Q#
- 2.gxf8S#
- 2.gxf8B#
- 2.gxf8R#
- 1...Bc7
- 2.Sf7#
- 2.Re6#
- 1...Be7
- 2.Sf7#
- 2.Re6#
- 1...Bb8
- 2.Sf7#
- 2.Re6#
- 1...Bf8
- 2.Sf7#
- 2.Re6#
- 1...Sd2
- 2.Qxa1#
- 1...Kf6!
- 1...Sc3+
- 1.Sa7?
- 1...Sc3+
- 2.Qxc3#
- 1...Rxg7
- 2.Bxg7#
- 1...Rxh8
- 2.gxh8Q#
- 2.gxh8B#
- 1...Ra8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Rb8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Rc8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Rd8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Re8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Rf8
- 2.gxf8Q#
- 2.gxf8S#
- 2.gxf8B#
- 2.gxf8R#
- 1...Bc7
- 2.Sf7#
- 2.Re6#
- 1...Be7
- 2.Sf7#
- 2.Re6#
- 1...Bb8
- 2.Sf7#
- 2.Re6#
- 1...Bf8
- 2.Sf7#
- 2.Re6#
- 1...Sd2
- 2.Qxa1#
- 1...Kf6!
- 1...Sc3+
- 1.Re4+?
- 1...Kf6
- 2.Re6#
- 2.Rxd6#
- 1...fxe4!
- 1...Kf6
- 1.Rxd6?
- threat
- 2.Sf7#
- 2.Re6#
- 1...Sc3+
- 2.Qxc3#
- 1...Re8
- 2.Sf7#
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Rf8
- 2.Re6#
- 2.gxf8Q#
- 2.gxf8S#
- 2.gxf8B#
- 2.gxf8R#
- 1...b5+!
- threat
- 1.Qd2?
- threat
- 2.Qxd6#
- 1...Sc3+
- 2.Qxc3#
- 1...Kf6
- 2.Qxd6#
- 1...Bc7
- 2.Sf7#
- 2.Re6#
- 2.Qd5#
- 1...Rd8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Be7
- 2.Sf7#
- 2.Re6#
- 2.Qd5#
- 1...Bb8
- 2.Sf7#
- 2.Re6#
- 2.Qd5#
- 1...Bf8
- 2.Sf7#
- 2.Re6#
- 2.Qd5#
- 1...Sxd2!
- threat
- 1.Qa5?
- 1...Sc3+
- 2.Qxc3#
- 1...Rxg7
- 2.Bxg7#
- 1...Rxc8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Rxh8
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bc7
- 2.Sf7#
- 2.Re6#
- 2.Qxc5#
- 1...Rd8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Re8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Rf8
- 2.gxf8Q#
- 2.gxf8S#
- 2.gxf8B#
- 2.gxf8R#
- 1...Be7
- 2.Sf7#
- 2.Re6#
- 1...Bb8
- 2.Sf7#
- 2.Re6#
- 2.Qxc5#
- 1...Bf8
- 2.Sf7#
- 2.Re6#
- 1...Sd2
- 2.Qc3#
- 1...Kf6!
- 1...Sc3+
- 1.Qd1?
- threat
- 2.Qxd6#
- 1...Kf6
- 2.Qxd6#
- 1...Bc7
- 2.Sf7#
- 2.Re6#
- 2.Qd5#
- 1...Rd8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Be7
- 2.Sf7#
- 2.Re6#
- 2.Qd5#
- 1...Bb8
- 2.Sf7#
- 2.Re6#
- 2.Qd5#
- 1...Bf8
- 2.Sf7#
- 2.Re6#
- 2.Qd5#
- 1...Sd2
- 2.Qxa1#
- 1...Sc3+!
- threat
- 1.Ka5?
- Keys
- 1.e4!
- 1...Sc3+
- 2.Qxc3#
- 1...Kd4
- 2.e5#
- 1...Kf6
- 2.e5#
- 1...Rxg7
- 2.Bxg7#
- 1...Rxc8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Rxh8
- 2.gxh8Q#
- 2.gxh8B#
- 1...fxe4
- 2.Qxe4#
- 1...Bc7
- 2.exf5#
- 1...Rd8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Re8
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Rf8
- 2.gxf8Q#
- 2.gxf8S#
- 2.gxf8B#
- 2.gxf8R#
- 1...Be7
- 2.exf5#
- 1...Bb8
- 2.exf5#
- 1...Bf8
- 2.exf5#
- 1...Sd2
- 2.Qxa1#
- 1...Sc3+
- 1.e4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- R(l);OGATE,P_SPINR(l),XP(K)::B(M),XR(l)
- R(l);OGATE,XB(M)::PXR(l)=Q
- S(b);OGATE::QAB(A),XR(a)
- S(b);CHECK,N_GUARD::QAB(A),XS(b)
- Tries
- Try
- K(E);P-FLIGHT
- Vars
- R(l);OGATE,P_SPINR(l),XP(K)::B(M),XR(l)
- R(l);OGATE,XB(M)::PXR(l)=Q
- B(i);P_PINR(J)::S(I)
- S(b);OGATE::QAB(A),XR(a)
- S(b);N_GUARD::QAB(A),XS(b)
- Refutation
- K(g);P_SPINB(i),P_SPINP(h),S_FLIGHT
- Try
- K(E);S_FLIGHT
- Vars
- S(b);CHECK,N_GUARD::QAB(A),XS(b)
- R(l);OGATE,P_SPINR(l),XP(K)::B(M),XR(l)
- R(l);OGATE,XB(M)::PXR(l)=Q
- S(b);OGATE::QAB(A),XR(a)
- Refutation
- K(g);P_SPINB(i),P_SPINP(h),S_FLIGHT
- Try
- S(L);
- Vars
- S(b);CHECK,N_GUARD::QAB(A),XS(b)
- R(l);OGATE,P_SPINR(l),XP(K)::B(M),XR(l)
- R(l);OGATE,XB(M)::PXR(l)=Q
- S(b);OGATE::QAB(A),XR(a)
- Refutation
- K(g);P_SPINB(i),P_SPINP(h),S_FLIGHT
- Try
- R(G);CHECK
- Refutation
- P(h);XR(G)
- Try
- R(J);XB(i)
- Threat
- DUALS(2)
- Vars
- S(b);CHECK,N_GUARD::QAB(A),XS(b)
- Refutation
- P(k);CHECK
- Try
- Q(A);
- Threat
- QAB1(A),XB(i)
- Vars
- S(b);CHECK,N_GUARD::QAB(A),XS(b)
- K(g);P_SPINB(i),P_SPINP(h),S_FLIGHT::QAR2(A),XB(i)
- Refutation
- S(b);XQ(A)
- Try
- Q(A);P_PINP(f)
- Vars
- S(b);CHECK,N_GUARD::QAB(A),XS(b)
- R(l);OGATE,P_SPINR(l),XP(K)::B(M),XR(l)
- R(l);OGATE,XB(M)::PXR(l)=Q
- S(b);N_GUARD::QAB(A)
- Refutation
- K(g);N_SPINP(f),P_SPINB(i),P_SPINP(h),S_FLIGHT
- Try
- Q(A);
- Threat
- QAB1(A),XB(i)
- Vars
- K(g);P_SPINB(i),P_SPINP(h),S_FLIGHT::QAR2(A),XB(i)
- S(b);OGATE::QAB(A),XR(a)
- Refutation
- S(b);CHECK
- Try
- Actual
- P(C);
- Vars
- S(b);CHECK,N_GUARD::QAB(A),XS(b)
- K(g);OGATE,S_FLIGHT::R(G)+P(C)
- K(g);OGATE,P_SPINB(i),P_SPINP(h),S_FLIGHT::P(C)
- R(l);OGATE,P_SPINR(l),XP(K)::B(M),XR(l)
- R(l);OGATE,XB(M)::PXR(l)=Q
- P(h);OGATE,P_SPINP(h),XP(C)::QAR1(A),XP(h)
- B(i);::QAR(A)+P(C),XP(h)
- S(b);OGATE::QAB(A),XR(a)
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).