MESON Chess Problem Database

Problem Display
PID: 21728 (6N1/r2p4/p3kpPQ/pq3pp1/1bp5/3RN3/3pR3/3K4 w - - 0 1)

Mansfield, Comins

Surrey Mirror, 1920

6N1/r2p4/p3kpPQ/pq3pp1/1bp5/3RN3/3pR3/3K4

#2

7 + 12

2713 Streatham News 1920
3360 Simple Two-move Themes 1924
3202 Complete Mansfield/I 1996
14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Sg2#
    • 1...Qa4+
      • 2.Sc2#
  • Tries
    • 1.Sxf5+?
      • 1...Qe5
        • 2.Sg7#
      • 1...Kxf5!
  • Keys
    • 1.Qg7!
      • threat
        • 2.Qxf6#
      • 1...Qa4+
        • 2.Sc2#
      • 1...Ke5
        • 2.Sg2#
      • 1...d5
        • 2.Sxc4#
      • 1...Qe5
        • 2.Qf7#
      • 1...Bc3
        • 2.Qe7#
      • 1...Be7
        • 2.Qxe7#
      • 1...d6
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(i);P-FLIGHT::R(B)+S(D)
    • Q(e);CHECK,N_GUARD::R(B)+S(D)
  • Tries
    • Try
      • S(D);CHECK,XP(f)
      • Vars
        • Q(e);P_SPINQ(e)::S(D)
      • Refutation
        • K(i);S_FLIGHT,XS(D)
  • Actual
    • Q(F);
    • Threat
      • QAR1(F),XP(j)
    • Vars
      • Q(e);CHECK,N_GUARD::R(B)+S(D)
      • K(i);P-FLIGHT,P_SPINP(j)::R(B)+S(D)
      • P(l);S_CUTQ(e)::R(B)+S(D),XP(c)
      • Q(e);SBLOCK::QAB1(F)
      • B(b);N_GUARD::QAR1(F)
      • B(b);N_GUARD::QAR1(F),XB(b)
      • P(l);SBLOCK::R(B)+S(D)
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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).