MESON Chess Problem Database
Problem Display
PID: 10617 (8/6PB/q1p3Rp/p2pPr2/4kP2/K1PNb1Q1/2P1N3/4R2b w - - 0 1)
Mansfield, Comins
3rd Prize, Het Belgisch Schaakbord (L'Echiquier Belge), 1966
#2
12 + 9
| 4054 | Complete Mansfield/III | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Rxf4
- 2.Rg4#
- 1...Rxe5
- 2.Re6#
- 1...Rg5
- 2.Rxg5#
- 1...Rh5
- 2.Rg5#
- 1...Rf6
- 2.Rxf6#
- 1...Rf7
- 2.Rf6#
- 1...Rf8
- 2.Rf6#
- 1...Bg2
- 2.Qxg2#
- 1...Bc1+
- 2.Sexc1#
- 1...Bg1
- 2.Sxg1#
- 1...Bd2
- 2.Sf2#
- 2.Sc5#
- 1...Bf2
- 2.Sxf2#
- 1...Bd4
- 2.Sxd4#
- 1...Bxf4
- 2.Sexf4#
- 1...Bc5+
- 2.Sxc5#
- 1...Bb6
- 2.Sd4#
- 1...Ba7
- 2.Sd4#
- 1...Rxf4
- Tries
- 1.Sec1?
- threat
- 2.Sf2#
- 2.Sc5#
- 2.Rxe3#
- 2.Qxe3#
- 1...Qxd3
- 2.cxd3#
- 1...Rxf4
- 2.Rg4#
- 2.Qxf4#
- 1...Rxe5
- 2.Re6#
- 1...Rg5
- 2.Rxg5#
- 1...Rh5
- 2.Rg5#
- 1...Rf6
- 2.Rxf6#
- 1...Rf7
- 2.Rf6#
- 1...Rf8
- 2.Rf6#
- 1...Qc4
- 2.Sf2#
- 2.Rxe3#
- 2.Qxe3#
- 1...Qb5
- 2.Sf2#
- 2.Rxe3#
- 2.Qxe3#
- 1...Qb6
- 2.Sf2#
- 1...Qa7
- 2.Sf2#
- 1...Bf3
- 2.Sf2#
- 2.Sc5#
- 1...c5
- 2.Sf2#
- 2.Sxc5#
- 2.Rxe3#
- 2.Qxe3#
- 1...d4!
- threat
- 1.Sd4?
- threat
- 2.Sf2#
- 2.Sc5#
- 2.Rxe3#
- 2.Qxe3#
- 1...Rxf4
- 2.Rxe3#
- 2.Rg4#
- 2.Qxf4#
- 2.Qxe3#
- 1...Qc4
- 2.Sf2#
- 2.Rxe3#
- 2.Qxe3#
- 1...Qb5
- 2.Sf2#
- 2.Rxe3#
- 2.Qxe3#
- 1...Qb6
- 2.Sf2#
- 2.Rxe3#
- 2.Qxe3#
- 1...Qa7
- 2.Sf2#
- 2.Rxe3#
- 2.Qxe3#
- 1...Bf3
- 2.Sf2#
- 2.Sc5#
- 2.Qxf3#
- 1...c5
- 2.Sf2#
- 2.Sxc5#
- 2.Rxe3#
- 2.Qxe3#
- 1...Qxd3!
- threat
- 1.Qf3+?
- 1...Bxf3
- 2.Sg3#
- 1...Kxf3!
- 1...Bxf3
- 1.Sec1?
- Keys
- 1.Qh3!
- threat
- 2.Qxh1#
- 1...Bc1+
- 2.Sexc1#
- 1...Bc5+
- 2.Sxc5#
- 1...Rxf4
- 2.Rg4#
- 1...Rxe5
- 2.Re6#
- 1...Bxf4
- 2.Sexf4#
- 1...Rg5
- 2.Rxg5#
- 1...Rh5
- 2.Rg5#
- 1...Rf6
- 2.Rxf6#
- 1...Rf7
- 2.Rf6#
- 1...Rf8
- 2.Rf6#
- 1...Bg2
- 2.Qxg2#
- 1...Bf3
- 2.Sg3#
- 1...Bg1
- 2.Sxg1#
- 1...Bd2
- 2.Sf2#
- 2.Sc5#
- 1...Bf2
- 2.Sxf2#
- 1...Bd4
- 2.Sxd4#
- 1...Bb6
- 2.Sd4#
- 1...Ba7
- 2.Sd4#
- threat
- 1.Qh3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(f);OGATEB,XP(H)::B(L)+R(J)
- R(f);OGATEB,XP(I)::B(L)+R(J)
- R(f);OGATEB::B(L)+R(J),XR(f)
- R(f);OGATEB::B(L)+R(J)
- B(a);N_GUARD::QAB(G),XB(a)
- B(b);CHECK::R(A)+S(C),XB(b)
- B(b);::R(A)+S(C),XB(b)
- B(b);N_GUARD::S(F),XB(b)
- B(b);XP(H)::R(A)+S(C),XB(b)
- B(b);CHECK,N_GUARD::S(F),XB(b)
- B(b);::R(A)+S(C)
- Tries
- Try
- S(C);P_PINB(b)
- Threat
- DUALS(4)
- Vars
- Q(g);OGATE,P_PINP(E),XS(F)::P(B),XQ(g)
- R(f);OGATEB,XP(I)::B(L)+R(J)
- R(f);OGATEB::B(L)+R(J),XR(f)
- R(f);OGATEB::B(L)+R(J)
- Q(g);::S(F)
- Refutation
- P(e);
- Try
- S(C);P_PINB(b)
- Threat
- DUALS(4)
- Refutation
- Q(g);P_PINP(E),XS(F)
- Try
- Q(G);CHECK
- Vars
- B(a);SBLOCK,XQ(G)::S(C)
- Refutation
- K(c);S_FLIGHT,XQ(G)
- Try
- Actual
- Q(G);
- Threat
- QAB(G),XB(a)
- Vars
- B(b);CHECK::R(A)+S(C),XB(b)
- B(b);CHECK,N_GUARD::S(F),XB(b)
- R(f);OGATEB,XP(H)::B(L)+R(J)
- R(f);OGATEB,XP(I)::B(L)+R(J)
- B(b);XP(H)::R(A)+S(C),XB(b)
- R(f);OGATEB::B(L)+R(J),XR(f)
- R(f);OGATEB::B(L)+R(J)
- B(a);N_GUARD::QAB(G),XB(a)
- B(a);SBLOCK::S(C)
- B(b);::R(A)+S(C),XB(b)
- B(b);N_GUARD::S(F),XB(b)
- B(b);::R(A)+S(C)
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).