MESON Chess Problem Database
Problem Display
PID: 55567 (8/r2PB2K/1n2pRpp/nRP1k3/1p1p2P1/3Pp1P1/q5B1/Q7 w - - 0 1)
Mansfield, Comins
4th Prize, Szugyi MT, 1975
#2
11 + 11
| 4054 | Complete Mansfield/III | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.cxb6#
- 1...Qxa1
- 2.cxb6#
- 1...Qb2
- 2.cxb6#
- 1...Qd2
- 2.cxb6#
- 1...Qe2
- 2.cxb6#
- 1...Qf2
- 2.cxb6#
- 1...Qa3
- 2.cxb6#
- 1...Sac4
- 2.cxb6#
- 1...Sbc4
- 2.c6#
- 1...b3
- 2.cxb6#
- 1...Qb1
- Tries
- 1.Rf4?
- threat
- 2.Bd6#
- 2.Bf6#
- 2.Qxd4#
- 1...Qxa1
- 2.Bd6#
- 2.Bf6#
- 2.cxb6#
- 1...Qxg2
- 2.Qxd4#
- 1...Sxd7
- 2.Bd6#
- 2.Qxd4#
- 1...Qc4
- 2.Bd6#
- 2.Bf6#
- 1...Qd5
- 2.Bf6#
- 1...Qb2
- 2.Bd6#
- 2.Bf6#
- 2.cxb6#
- 1...Sb3
- 2.Bd6#
- 2.Bf6#
- 1...Sac4
- 2.Bf6#
- 2.Qxd4#
- 2.cxb6#
- 1...Sc6
- 2.Bd6#
- 2.Bf6#
- 1...Sb7
- 2.Bf6#
- 2.Qxd4#
- 1...Sbc4
- 2.Bf6#
- 2.Qxd4#
- 2.c6#
- 1...Sd5
- 2.Bd6#
- 2.Re4#
- 2.Qxd4#
- 1...Sc8
- 2.Bf6#
- 2.Qxd4#
- 1...Rxd7!
- threat
- 1.Rf7?
- threat
- 2.Bd6#
- 2.Bf6#
- 1...Rxd7
- 2.Bf6#
- 1...Sxd7
- 2.Bd6#
- 1...Qd5
- 2.Bf6#
- 1...Qf2
- 2.Bd6#
- 2.cxb6#
- 1...Sac4
- 2.Bf6#
- 2.cxb6#
- 1...Sb7
- 2.Bf6#
- 1...Sbc4
- 2.Bf6#
- 2.c6#
- 1...Sd5
- 2.Bd6#
- 1...Sc8
- 2.Bf6#
- 1...Qxg2!
- threat
- 1.Qf1?
- threat
- 2.Bd6#
- 2.Qf4#
- 1...Rxd7
- 2.Qf4#
- 1...Qd5
- 2.Qf4#
- 1...Qf2
- 2.cxb6#
- 1...Sac4
- 2.Qf4#
- 2.cxb6#
- 1...Sb7
- 2.Qf4#
- 1...Sbc4
- 2.Qf4#
- 2.c6#
- 1...Sd5
- 2.Bd6#
- 1...Sc8
- 2.Qf4#
- 1...g5
- 2.Bd6#
- 1...Qxg2!
- threat
- 1.Rf4?
- Keys
- 1.Rf3!
- threat
- 2.Rxe3#
- 1...Kd5
- 2.Rf5#
- 1...Qxa1
- 2.cxb6#
- 1...Qxg2
- 2.cxb6#
- 1...Qd5
- 2.Bf6#
- 1...Qb2
- 2.cxb6#
- 1...Qd2
- 2.cxb6#
- 1...Qe2
- 2.cxb6#
- 1...Qf2
- 2.cxb6#
- 1...Sac4
- 2.cxb6#
- 1...Sbc4
- 2.c6#
- 1...Sd5
- 2.Bd6#
- 1...e2
- 2.Re3#
- threat
- 1.Rf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 3
- Sets
- Q(a);N_GUARD::R(F)+P(G),XS(g)
- Q(a);N_GUARD,N_SPINP(d),XQ(A)::R(F)+P(G),XS(g)
- Q(a);N_GUARD,N_SPINP(d)::R(F)+P(G),XS(g)
- S(e);S_CUTQ(a)::R(F)+P(G),XS(g)
- S(g);N_GUARD,S_CUTQ(a)::R(F)+P(G)
- P(c);S_CUTQ(a)::R(F)+P(G),XS(g)
- Tries
- Try
- R(H);
- Threat
- DUALS(3)
- Vars
- Q(a);XB(B)::QAB1(A),XP(d)
- Q(a);::B(J)
- Refutation
- R(k);P_PINB(J),XP(I)
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- R(k);XP(I)::B(J)
- S(g);XP(I)::B(J)
- Q(a);::B(J)
- S(e);::B(J)
- S(g);::B(J)
- Refutation
- Q(a);XB(B)
- Try
- Q(A);N_PINP(d)
- Threat
- DUALS(2)
- Vars
- R(k);P_PINB(J),XP(I)::QAB1(A)
- Q(a);::QAB1(A)
- Q(a);N_GUARD::R(F)+P(G),XS(g)
- S(e);::QAB1(A)
- S(g);::B(J)
- S(g);::QAB1(A)
- P(i);::B(J)
- Refutation
- Q(a);XB(B)
- Try
- Actual
- R(H);
- Threat
- R(H),XP(b)
- Vars
- K(f);N_SPINP(d),P-FLIGHT::B(B)+R(H),DCHECK
- Q(a);N_GUARD,N_SPINP(d),XQ(A)::R(F)+P(G),XS(g)
- Q(a);N_GUARD,XB(B)::R(F)+P(G),XS(g)
- Q(a);SBLOCK::B(J)
- Q(a);N_GUARD,N_SPINP(d)::R(F)+P(G),XS(g)
- Q(a);N_GUARD::R(F)+P(G),XS(g)
- S(e);S_CUTQ(a)::R(F)+P(G),XS(g)
- S(g);N_GUARD,S_CUTQ(a)::R(F)+P(G)
- S(g);SBLOCK::B(J)
- P(b);::R(H)
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).