MESON Chess Problem Database
Problem Display
PID: 18478 (B3Nn2/2P3Q1/2Prb2r/3k1P1R/1P1N4/1P3P1n/2KB4/3R4 w - - 0 1)
Mansfield, Comins
4th HM., BCF 080. Ty., 1955-1956
#2
14 + 6
| 3550 | Complete Mansfield/II | 1997 |
| 3166 | Finnish Solving Championship | 2008 |
| 14869 | British Championship Solving Ty. | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Rxc6+
- 2.Bxc6#
- 1...Rd7
- 2.cxd7#
- 1...Bxf5+
- 2.Rxf5#
- 1...Rxc6+
- Tries
- 1.Se2?
- threat
- 2.Sc3#
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Bxh6#
- 2.Qd4#
- 1...Rxc6+
- 2.Sc3#
- 2.Bc3#
- 1...Rxh5
- 2.Sc3#
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Bh6#
- 2.Qd4#
- 1...Rf6
- 2.Bc3#
- 2.Bf4#
- 1...Rg6
- 2.Sc3#
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Bh6#
- 2.Qd4#
- 1...Rh7
- 2.Sc3#
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Bh6#
- 2.Qd4#
- 1...Rh8
- 2.Sc3#
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Bh6#
- 2.Qd4#
- 1...Sf2
- 2.Sc3#
- 2.Sf4#
- 2.Qd4#
- 1...Sf4
- 2.Sc3#
- 2.Sxf4#
- 2.Bxf4#
- 2.Qd4#
- 1...Sg5
- 2.Sc3#
- 2.Sf4#
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bxg5#
- 2.Qd4#
- 1...Bxf5+!
- threat
- 1.Sb5?
- threat
- 2.Sc3#
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Bxh6#
- 2.Qd4#
- 1...Rxc6+
- 2.Sc3#
- 2.Bc3#
- 1...Rxh5
- 2.Sc3#
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Bh6#
- 2.Qd4#
- 1...Rf6
- 2.Bc3#
- 2.Bf4#
- 1...Rg6
- 2.Sc3#
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Bh6#
- 2.Qd4#
- 1...Rh7
- 2.Sc3#
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Bh6#
- 2.Qd4#
- 1...Rh8
- 2.Sc3#
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Bh6#
- 2.Qd4#
- 1...Sf2
- 2.Sc3#
- 2.Qd4#
- 1...Sf4
- 2.Sc3#
- 2.Bxf4#
- 2.Qd4#
- 1...Sg5
- 2.Sc3#
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bxg5#
- 2.Qd4#
- 1...Bxf5+!
- threat
- 1.Sxe6?
- threat
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Bxh6#
- 2.Qd4#
- 1...Rxc6+
- 2.Bc3#
- 1...Rdxe6
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Bxh6#
- 1...Rxh5
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Bh6#
- 2.Qd4#
- 1...Rhxe6
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Bh6#
- 1...Rf6
- 2.Bc3#
- 2.Bf4#
- 1...Rg6
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Bh6#
- 2.Qd4#
- 1...Rh7
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Bh6#
- 2.Qd4#
- 1...Rh8
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Bh6#
- 2.Qd4#
- 1...Sf2
- 2.Sf4#
- 2.Qd4#
- 1...Sf4
- 2.Sxf4#
- 2.Bxf4#
- 2.Qd4#
- 1...Sg5
- 2.Sf4#
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bxg5#
- 2.Qd4#
- 1...Sxe6!
- threat
- 1.Bf4?
- threat
- 2.Se2#
- 2.Sb5#
- 2.Sxe6#
- 2.Qe5#
- 1...Rxc6+
- 2.Sxc6#
- 2.Bxc6#
- 1...Bxf5+
- 2.Rxf5#
- 1...Sf2
- 2.Qe5#
- 1...Rf6
- 2.Se2#
- 2.Sb5#
- 2.Sxe6#
- 2.Sxf6#
- 1...Bd7
- 2.Se2#
- 2.Sb5#
- 2.Se6#
- 2.Qe5#
- 1...Bf7
- 2.Se2#
- 2.Sb5#
- 2.Se6#
- 2.Qe5#
- 1...Bc8
- 2.Se2#
- 2.Sb5#
- 2.Se6#
- 2.Qe5#
- 1...Bg8
- 2.Se2#
- 2.Sb5#
- 2.Se6#
- 2.Qe5#
- 1...Sg6
- 2.Se2#
- 2.Sb5#
- 2.Sxe6#
- 2.Sf6#
- 1...Sd7
- 2.Se2#
- 2.Sb5#
- 2.Sxe6#
- 1...Sxf4!
- threat
- 1.Bxh6?
- threat
- 2.Se2#
- 2.Sb5#
- 2.Sxe6#
- 1...Rxc6+
- 2.Sxc6#
- 2.Bxc6#
- 1...Bxf5+
- 2.Rxf5#
- 1...Sf2
- 2.fxe6#
- 1...Bd7
- 2.Se2#
- 2.Sb5#
- 2.Se6#
- 1...Bf7
- 2.Se2#
- 2.Sb5#
- 2.Se6#
- 1...Bc8
- 2.Se2#
- 2.Sb5#
- 2.Se6#
- 1...Bg8
- 2.Se2#
- 2.Sb5#
- 2.Se6#
- 1...Sf4!
- threat
- 1.fxe6+?
- 1...Sg5
- 2.Rxg5#
- 1...Rxh5!
- 1...Sg5
- 1.c8Q?
- threat
- 2.Sc7#
- 1...Rxc6+
- 2.Bxc6#
- 2.Qxc6#
- 1...Bxf5+
- 2.Rxf5#
- 2.Qxf5#
- 1...Rd7
- 2.cxd7#
- 2.c7#
- 1...Rd8
- 2.c7#
- 1...Rf6!
- threat
- 1.c8S?
- threat
- 2.Sb6#
- 2.Se7#
- 2.Sc7#
- 1...Rxc6+
- 2.Bxc6#
- 1...Bxf5+
- 2.Rxf5#
- 1...Bxc8
- 2.Sc7#
- 1...Rd7
- 2.Sb6#
- 2.cxd7#
- 2.c7#
- 1...Sg6
- 2.Sb6#
- 2.Sc7#
- 1...Sd7
- 2.Se7#
- 2.Sc7#
- 1...Rf6!
- threat
- 1.c8B?
- threat
- 2.Sc7#
- 1...Rxc6+
- 2.Bxc6#
- 1...Bxf5+
- 2.Rxf5#
- 1...Rd7
- 2.cxd7#
- 2.c7#
- 1...Rd8
- 2.c7#
- 1...Rf6!
- threat
- 1.c8R?
- threat
- 2.Sc7#
- 1...Rxc6+
- 2.Bxc6#
- 1...Bxf5+
- 2.Rxf5#
- 1...Rd7
- 2.cxd7#
- 2.c7#
- 1...Rd8
- 2.c7#
- 1...Rf6!
- threat
- 1.Se2?
- Keys
- 1.Qe7!
- threat
- 2.Qxd6#
- 1...Rxc6+
- 2.Qc5#
- 1...Bxf5+
- 2.Qe4#
- 1...Kxd4
- 2.Bf4#
- 1...Ke5
- 2.Qxd6#
- 1...Rd7
- 2.Qc5#
- 1...Rd8
- 2.Qc5#
- 1...Bd7
- 2.Qe4#
- 1...Bf7
- 2.Qe4#
- 1...Bc8
- 2.Qe4#
- 1...Bg8
- 2.Qe4#
- threat
- 1.Qe7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- R(c);CHECK,OGATE,P_SPINR(c),XP(J)::B(M),XR(c)
- R(c);OGATE::B(M)+P(J),XR(c)
- B(d);CHECK,OGATE,P_SPINB(d),XP(H)::R(I),XB(d)
- Tries
- Try
- S(G);
- Threat
- DUALS(9)
- Refutation
- B(d);CHECK,P_SPINB(d),XP(H)
- Try
- S(G);
- Threat
- DUALS(9)
- Refutation
- B(d);CHECK,P_SPINB(d),XP(H)
- Try
- S(G);XB(d)
- Threat
- DUALS(8)
- Vars
- R(c);CHECK,P_SPINR(c),XP(J)::R(A)+B(C)
- Refutation
- S(f);XS(G)
- Try
- B(C);
- Threat
- DUALS(4)
- Vars
- B(d);CHECK,OGATE,P_SPINB(d),XP(H)::R(I),XB(d)
- S(a);::QAR1(L)
- Refutation
- S(a);XB(C)
- Try
- B(C);XR(e)
- Threat
- DUALS(3)
- Vars
- B(d);CHECK,OGATE,P_SPINB(d),XP(H)::R(I),XB(d)
- S(a);N_GUARD::R(I)+P(H),XB(d)
- Refutation
- S(a);
- Try
- P(H);CHECK,XB(d)
- Vars
- S(a);N_GUARD,P_SPINS(a)::R(I),XS(a)
- Refutation
- R(e);XR(I)
- Try
- P(K);
- Threat
- S(N)
- Vars
- R(c);N_GUARD::B(M)+P(J)
- Refutation
- R(e);
- Try
- P(K);
- Threat
- DUALS(3)
- Vars
- R(c);CHECK,OGATE,P_SPINR(c),XP(J)::B(M),XR(c)
- B(d);CHECK,OGATE,P_SPINB(d),XP(H)::R(I),XB(d)
- B(d);XS(K)::S(N)
- Refutation
- R(e);
- Try
- P(K);
- Threat
- S(N)
- Vars
- R(c);CHECK,OGATE,P_SPINR(c),XP(J)::B(M),XR(c)
- B(d);CHECK,OGATE,P_SPINB(d),XP(H)::R(I),XB(d)
- R(c);N_GUARD::B(M)+P(J)
- Refutation
- R(e);
- Try
- P(K);
- Threat
- S(N)
- Vars
- R(c);CHECK,OGATE,P_SPINR(c),XP(J)::B(M),XR(c)
- B(d);CHECK,OGATE,P_SPINB(d),XP(H)::R(I),XB(d)
- R(c);N_GUARD::B(M)+P(J)
- Refutation
- R(e);
- Try
- Actual
- Q(L);
- Threat
- QAR1(L),XR(c)
- Vars
- R(c);CHECK,OGATE,P_SPINR(c),XP(J)::QAR1(L)
- B(d);CHECK,OGATE,P_SPINB(d),XP(H)::QAB1(L)
- K(b);OGATEB,P-FLIGHT,XS(G)::R(A)+B(C)
- K(b);P-FLIGHT,P_SPINB(d)::QAB1(L),XR(c)
- R(c);OGATE::QAR1(L)
- B(d);OGATE::QAB1(L)
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).