MESON Chess Problem Database

Problem Display
PID: 55881 (2BB4/1b1N2p1/2pK2Pp/5k1p/3pNn2/4p3/6Qb/5R2 w - - 0 1)

Mansfield, Comins

4th Prize, Mat, 1978

2BB4/1b1N2p1/2pK2Pp/5k1p/3pNn2/4p3/6Qb/5R2

#2

8 + 10

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Ba8
      • 2.Sdc5#
      • 2.Se5#
      • 2.Sb6#
      • 2.Sdf6#
      • 2.Sb8#
      • 2.Sf8#
  • Tries
    • 1.Qh3+?
      • 1...Kxe4
        • 2.Sc5#
      • 1...Kxg6!
    • 1.Qg3?
      • threat
        • 2.Rxf4#
      • 1...Kxe4
        • 2.Sc5#
      • 1...Bxg3!
    • 1.Qg4+?
      • 1...Kxe4
        • 2.Sc5#
      • 1...Kxg4
        • 2.Se5#
      • 1...hxg4!
    • 1.Qg5+?
      • 1...Kxe4
        • 2.Sc5#
      • 1...hxg5!
  • Keys
    • 1.Qa2!
      • threat
        • 2.Qe6#
      • 1...Kxe4
        • 2.Sc5#
      • 1...Kg4
        • 2.Se5#
      • 1...Kxg6
        • 2.Sf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(e);N_SPINS(d),S_FLIGHT,XS(C)::S(F)
      • Refutation
        • K(e);N_SPINS(d),S_FLIGHT,XP(E)
    • Try
      • Q(B);
      • Threat
        • R1(A),XS(d)
      • Vars
        • K(e);N_SPINS(d),S_FLIGHT,XS(C)::S(F)
      • Refutation
        • B(a);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(e);S_FLIGHT,XS(C)::S(F)
        • K(e);N_SPINS(d),S_FLIGHT,XQ(B)::B(G)+S(F),DCHECK
      • Refutation
        • P(f);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(e);N_SPINS(d),S_FLIGHT,XS(C)::S(F)
      • Refutation
        • P(h);XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • K(e);N_SPINS(d),S_FLIGHT,XS(C)::S(F)
      • K(e);N_SPINS(d),S_FLIGHT::B(G)+S(F),DCHECK
      • K(e);N_SPINS(d),S_FLIGHT,XP(E)::S(F)
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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).