MESON Chess Problem Database
Problem Display
PID: 43073 (B2b4/2P1P3/1PR1n3/pp1k1P1b/1rn3N1/1P4R1/4N3/2Q3K1 w - - 0 1)
Mansfield, Comins
Magyar Sakkelet, 1970
#2
12 + 8
| 4054 | Complete Mansfield/III | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Ke4
- 2.Rc5#
- 1...Sb2
- 2.Rxe6#
- 1...Sd2
- 2.Rxe6#
- 1...Sa3
- 2.Rxe6#
- 1...Se3
- 2.Rxe6#
- 1...Se5
- 2.Sf6#
- 1...Sxb6
- 2.Rxb6#
- 1...Sd6
- 2.Rc5#
- 1...Sd4
- 2.Sc3#
- 1...Ke4
- Tries
- 1.Se3+?
- 1...Ke5
- 2.Rxe6#
- 1...Sxe3
- 2.Rxe6#
- 1...Ke4!
- 1...Ke5
- 1.Rd3+?
- 1...Sd4
- 2.Sc3#
- 2.Rxd4#
- 1...Ke4!
- 1...Sd4
- 1.Qd2+?
- 1...Ke4
- 2.Rc5#
- 2.Qd3#
- 1...Sd4
- 2.Sc3#
- 2.Qxd4#
- 1...Sxd2!
- 1...Ke4
- 1.Qe3?
- threat
- 2.Sc3#
- 2.Sf6#
- 2.Rxe6#
- 2.Qf3#
- 2.Qxe6#
- 1...Rxb3
- 2.Sf6#
- 2.Rxe6#
- 2.Qxe6#
- 1...Bxg4
- 2.Sc3#
- 2.Rxe6#
- 2.Qxe6#
- 1...Bxe7
- 2.Sc3#
- 2.Rxe6#
- 2.Qf3#
- 2.Qxe6#
- 1...Sxb6
- 2.Sc3#
- 2.Sf6#
- 2.Rxb6#
- 2.Qe5#
- 2.Qxe6#
- 1...Sxc7
- 2.Sc3#
- 2.Sf4#
- 2.Sf6#
- 2.Qd4#
- 2.Qd3#
- 2.Qf3#
- 1...Bf7
- 2.Sc3#
- 2.Sf6#
- 2.Rxe6#
- 2.Qf3#
- 1...Be8
- 2.Sc3#
- 2.Sf6#
- 2.Qf3#
- 2.Qxe6#
- 1...Sb2
- 2.Sc3#
- 2.Sf6#
- 2.Rxe6#
- 2.Qe5#
- 2.Qxe6#
- 1...Sd2
- 2.Sc3#
- 2.Sf6#
- 2.Rxe6#
- 2.Qe5#
- 2.Qxe6#
- 1...Sa3
- 2.Sc3#
- 2.Sf6#
- 2.Rxe6#
- 2.Qe5#
- 2.Qxe6#
- 1...Se5
- 2.Sc3#
- 2.Sf6#
- 2.Qxe5#
- 1...Sd6
- 2.Sc3#
- 2.Sf6#
- 2.Rc5#
- 2.Qe5#
- 2.Qxe6#
- 1...Sd4
- 2.Sc3#
- 2.Sf4#
- 2.Sf6#
- 2.Qxd4#
- 1...Sf4
- 2.Sc3#
- 2.Sxf4#
- 2.Sf6#
- 2.Re6#
- 2.Rf6#
- 2.Rg6#
- 2.Rh6#
- 2.Qd4#
- 2.Qf3#
- 1...Sc5
- 2.Sc3#
- 2.Sf4#
- 2.Sf6#
- 2.Qd4#
- 1...Sg5
- 2.Sc3#
- 2.Sf4#
- 2.Sf6#
- 2.Re6#
- 2.Rf6#
- 2.Rg6#
- 2.Rh6#
- 2.Qd4#
- 2.Qd3#
- 1...Sg7
- 2.Sc3#
- 2.Sf4#
- 2.Sf6#
- 2.Re6#
- 2.Rf6#
- 2.Rg6#
- 2.Rh6#
- 2.Qd4#
- 2.Qd3#
- 2.Qf3#
- 1...Sf8
- 2.Sc3#
- 2.Sf4#
- 2.Sf6#
- 2.Re6#
- 2.Rf6#
- 2.Rg6#
- 2.Rh6#
- 2.Qd4#
- 2.Qd3#
- 2.Qf3#
- 1...Sxe3!
- threat
- 1.Qf4?
- threat
- 2.Sc3#
- 2.Sf6#
- 2.Rxc4#
- 2.Qf3#
- 1...Rxb3
- 2.Sf6#
- 2.Rxc4#
- 1...Bxg4
- 2.Sc3#
- 2.Rxc4#
- 1...Bxe7
- 2.Sc3#
- 2.Rxc4#
- 2.Qf3#
- 1...Sxb6
- 2.Sc3#
- 2.Se3#
- 2.Sf6#
- 2.Qe5#
- 1...Sxc7
- 2.Sc3#
- 2.Sf6#
- 2.Rd3#
- 2.Rxc7#
- 2.Qf3#
- 2.Qd4#
- 1...Be8
- 2.Sc3#
- 2.Sf6#
- 2.Qf3#
- 1...Sb2
- 2.Sc3#
- 2.Se3#
- 2.Sf6#
- 2.Rc1#
- 2.Rc2#
- 2.Rcc3#
- 2.Rc4#
- 2.Qe5#
- 1...Sd2
- 2.Sc3#
- 2.Se3#
- 2.Sf6#
- 2.Rc1#
- 2.Rc2#
- 2.Rcc3#
- 2.Rc4#
- 2.Qe5#
- 1...Sa3
- 2.Sc3#
- 2.Se3#
- 2.Sf6#
- 2.Rc1#
- 2.Rc2#
- 2.Rcc3#
- 2.Rc4#
- 2.Qe5#
- 1...Se3
- 2.Sc3#
- 2.Sxe3#
- 2.Sf6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Qe5#
- 1...Se5
- 2.Sc3#
- 2.Se3#
- 2.Sf6#
- 2.Qxe5#
- 1...Sd6
- 2.Sc3#
- 2.Se3#
- 2.Sf6#
- 2.Qe5#
- 1...Sd4
- 2.Sc3#
- 2.Sf6#
- 2.Qxd4#
- 1...Sc5
- 2.Sc3#
- 2.Sf6#
- 2.Rd6#
- 2.Qd4#
- 1...Sg5
- 2.Sc3#
- 2.Sf6#
- 2.Rd3#
- 2.Rxc4#
- 2.Qd4#
- 1...Sxf4!
- threat
- 1.Qd1+?
- 1...Ke4
- 2.Rc5#
- 2.Qd3#
- 1...Sd4
- 2.Sc3#
- 2.Qxd4#
- 1...Sd2!
- 1...Ke4
- 1.Qc3?
- threat
- 2.Sf6#
- 2.Qf3#
- 1...Ke4
- 2.Rc5#
- 2.Qd3#
- 2.Qf3#
- 1...Rxb3
- 2.Sf6#
- 1...Bxe7
- 2.Qf3#
- 1...Sxb6
- 2.Sf6#
- 2.Rxb6#
- 2.Qe5#
- 1...Sb2
- 2.Sf6#
- 2.Rxe6#
- 2.Qe5#
- 1...Sd2
- 2.Sf6#
- 2.Rxe6#
- 2.Qe5#
- 1...Sa3
- 2.Sf6#
- 2.Rxe6#
- 2.Qe5#
- 1...Se3
- 2.Sf6#
- 2.Rxe6#
- 2.Qe5#
- 1...Se5
- 2.Sf6#
- 2.Qxe5#
- 1...Sd6
- 2.Sf6#
- 2.Rc5#
- 2.Qe5#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Sf6#
- 2.Qd4#
- 1...Sg5
- 2.Sf6#
- 2.Qd4#
- 2.Qd3#
- 1...Bxg4!
- threat
- 1.cxd8Q+?
- 1...Ke4
- 2.Rc5#
- 2.Qb1#
- 2.Qc2#
- 2.Qd3#
- 1...Sd6
- 2.Rc2#
- 2.Rcc3#
- 2.Rc4#
- 2.Rc5#
- 2.Rxd6#
- 2.Rc7#
- 2.Rc8#
- 1...Sxd8!
- 1...Ke4
- 1.cxd8R+?
- 1...Ke4
- 2.Rc5#
- 2.Qb1#
- 2.Qc2#
- 1...Sd6
- 2.Rc2#
- 2.Rcc3#
- 2.Rc4#
- 2.Rc5#
- 2.Rcxd6#
- 2.Rc7#
- 2.Rcc8#
- 1...Sxd8!
- 1...Ke4
- 1.exd8Q+?
- 1...Ke4
- 2.Rc5#
- 2.Qb1#
- 2.Qc2#
- 2.Qd3#
- 1...Sd6
- 2.Rc2#
- 2.Rcc3#
- 2.Rc4#
- 2.Rc5#
- 2.Rxd6#
- 1...Sxd8!
- 1...Ke4
- 1.exd8R+?
- 1...Ke4
- 2.Rc5#
- 2.Qb1#
- 2.Qc2#
- 1...Sd6
- 2.Rc2#
- 2.Rcc3#
- 2.Rc4#
- 2.Rc5#
- 2.Rcxd6#
- 1...Sxd8!
- 1...Ke4
- 1.Se3+?
- Keys
- 1.Qh6!
- threat
- 2.Qxe6#
- 1...Ke4
- 2.Rc5#
- 1...Sxc7
- 2.Rxc7#
- 1...Bg6
- 2.Qh1#
- 1...Bf7
- 2.Qh1#
- 1...Se5
- 2.Sf6#
- 1...Sd4
- 2.Sc3#
- 1...Sf4
- 2.Rxc4#
- 1...Sc5
- 2.Rd6#
- 1...Sg5
- 2.Rxc4#
- 1...Sg7
- 2.Rxc4#
- 1...Sf8
- 2.Rxc4#
- threat
- 1.Qh6!
This is a version
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 6
- Sets
- K(e);S_FLIGHT::B(L)+R(I)
- S(b);::B(L)+R(I),XS(g)
- S(b);SBLOCK::S(F)
- S(b);OGATE,XP(H)::B(L)+R(I),XS(b)
- S(b);SBLOCK::B(L)+R(I),DCHECK
- S(g);SBLOCK::S(C)
- Tries
- Try
- S(F);CHECK
- Vars
- K(e);P-FLIGHT::R1(I),XS(g)
- S(b);XS(F)::B(L)+R(I),XS(g)
- Refutation
- K(e);S_FLIGHT
- Try
- R(E);CHECK
- Refutation
- K(e);S_FLIGHT
- Try
- Q(A);CHECK
- Refutation
- S(b);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(5)
- Refutation
- S(b);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(4)
- Refutation
- S(g);XQ(A)
- Try
- Q(A);CHECK
- Refutation
- S(b);P_SPINS(b)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(a);XP(D)::S(F)
- B(h);XP(K)::QAB(A)
- S(g);N_GUARD::QAR1(A),XS(g)
- Refutation
- B(f);XS(F)
- Try
- P(J);CHECK,XB(h)
- Refutation
- S(g);XQ(J)
- Try
- P(J);CHECK,XB(h)
- Refutation
- S(g);XR(J)
- Try
- P(K);CHECK,XB(h)
- Refutation
- S(g);XQ(K)
- Try
- P(K);CHECK,XB(h)
- Refutation
- S(g);XR(K)
- Try
- Actual
- Q(A);
- Threat
- QAB1(A),XS(g)
- Vars
- K(e);S_FLIGHT::B(L)+R(I)
- S(g);OGATE,XP(J)::B(L)+R(I),XS(g)
- B(f);OGATE::QAB(A)
- S(b);SBLOCK::S(F)
- S(g);SBLOCK::S(C)
- S(g);::B(L)+R(I),XS(b)
- S(g);SBLOCK::B(L)+R(I),DCHECK
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).