MESON Chess Problem Database

Problem Display
PID: 11589 (3b3Q/3b4/1R2N2K/4pkpp/4p1p1/4r1r1/5P2/5N2 w - - 0 1)

Mansfield, Comins

Tidskrift for Schack, 1939

3b3Q/3b4/1R2N2K/4pkpp/4p1p1/4r1r1/5P2/5N2

#2

6 + 10

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Sxg3#
    • 1...Re2
      • 2.Sxg3#
    • 1...Rg1
      • 2.Sxe3#
    • 1...Rg2
      • 2.Sxe3#
    • 1...Bf6
      • 2.Qh7#
    • 1...Bc7
      • 2.Qf8#
  • Tries
    • 1.Qxd8?
      • threat
        • 2.Qxg5#
        • 2.Qf8#
      • 1...Bxe6
        • 2.Qxg5#
      • 1...Be8
        • 2.Qxg5#
      • 1...Bc6!
  • Keys
    • 1.f4!
      • threat
        • 2.Qxe5#
      • 1...exf4
        • 2.Sd4#
      • 1...gxf4
        • 2.Sg7#
      • 1...exf4 ep
        • 2.Sxg3#
      • 1...gxf4 ep
        • 2.Sxe3#
      • 1...Bf6
        • 2.Qh7#
      • 1...Bc7
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • R(a);N_GUARD::S(A),XR(b)
    • R(b);N_GUARD::S(A),XR(a)
    • B(j);SBLOCK::QAB(F)
    • B(j);N_GUARD::QAR(F)
  • Tries
    • Try
      • Q(F);XB(j)
      • Threat
        • DUALS(2)
      • Vars
        • B(i);XS(D)::QAR1(F),XP(g)
        • B(i);::QAR1(F),XP(g)
      • Refutation
        • B(i);
  • Actual
    • P(B);
    • Threat
      • QAR1(F),XP(e)
    • Vars
      • P(e);N_GUARD,SBLOCK,XP(B)::S(D)
      • P(g);SBLOCK,XP(B)::S(D)
      • P(c);EP,S_CUTR(a),XP(B)::S(A),XR(b)
      • P(d);EP,S_CUTR(b),XP(B)::S(A),XR(a)
      • B(j);SBLOCK::QAB(F)
      • B(j);N_GUARD::QAR(F)
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).