MESON Chess Problem Database

Problem Display
PID: 18128 (4q3/Bp2R3/8/1B6/3PN2Q/3PkP2/2RN2bK/2b5 w - - 0 1)

Mansfield, Comins

2nd Prize, The Problemist, 1953

4q3/Bp2R3/8/1B6/3PN2Q/3PkP2/2RN2bK/2b5

#2

11 + 5

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Ke2
      • 2.Sc3#
    • 1...Qxb5
      • 2.Sc5#
    • 1...Qh5
      • 2.Sg5#
    • 1...Qa8
      • 2.Sf2#
      • 2.Sc3#
      • 2.Sc5#
      • 2.Sg5#
      • 2.Sd6#
      • 2.Sf6#
    • 1...Qb8+
      • 2.Sd6#
    • 1...Qh8
      • 2.Sf6#
    • 1...Bxf3
      • 2.Sf1#
  • Tries
    • 1.Sf1+?
      • 1...Kxf3
        • 2.Rf2#
        • 2.Qg3#
      • 1...Bxf1!
    • 1.Sc4+?
      • 1...Kxf3
        • 2.Rf2#
        • 2.Qg3#
      • 1...Kxd3!
    • 1.Sg3+?
      • 1...Kf2
        • 2.Sgf1#
        • 2.Sh1#
        • 2.Se2#
        • 2.Sf5#
        • 2.Sh5#
      • 1...Qxe7!
    • 1.Rxe8?
      • threat
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sc5#
        • 2.Sg5#
        • 2.Sd6#
        • 2.Sf6#
      • 1...Ke2
        • 2.Sf2#
        • 2.Sc3#
      • 1...Bxd2
        • 2.Sxd2#
        • 2.Sg5#
      • 1...Bxf3
        • 2.Sf1#
      • 1...Ba3
        • 2.Sc5#
        • 2.Sd6#
      • 1...Bh3!
    • 1.d5+?
      • 1...Ke2
        • 2.Sc3#
      • 1...b6!
  • Keys
    • 1.Bb8!
      • threat
        • 2.Qf2#
      • 1...Qxb8+
        • 2.Sd6#
      • 1...Ke2
        • 2.Sc3#
      • 1...Kxd4
        • 2.Sf6#
      • 1...Qxb5
        • 2.Sc5#
      • 1...Qh5
        • 2.Sg5#
      • 1...Qh8
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(c);P-FLIGHT::R(K)+S(G),DCHECK
    • Q(e);N_GUARD,XB(I)::R(K)+S(G)
    • Q(e);N_GUARD,P_PINQ(H)::R(K)+S(G)
    • Q(e);CHECK,N_GUARD::R(K)+S(G)
    • B(b);N_GUARD,SBLOCK,XP(E)::S(B)
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • B(b);XS(B)
    • Try
      • S(B);CHECK
      • Refutation
        • K(c);P-FLIGHT,XP(D)
    • Try
      • S(G);CHECK
      • Refutation
        • Q(e);XR(K)
    • Try
      • R(K);XQ(e)
      • Threat
        • DUALS(6)
      • Vars
        • B(b);N_GUARD,SBLOCK,XP(E)::S(B)
      • Refutation
        • B(b);
    • Try
      • P(F);CHECK
      • Vars
        • K(c);P-FLIGHT::R(K)+S(G),DCHECK
      • Refutation
        • P(d);P_SPINP(d)
  • Actual
    • B(J);
    • Threat
      • QAB1(H)
    • Vars
      • Q(e);CHECK,N_GUARD,XB(J)::R(K)+S(G)
      • K(c);P-FLIGHT::R(K)+S(G),DCHECK
      • K(c);S_FLIGHT,XP(F)::QAR(H)+S(G)
      • Q(e);N_GUARD,XB(I)::R(K)+S(G)
      • Q(e);N_GUARD,P_PINQ(H)::R(K)+S(G)
HTML5 logo

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).