MESON Chess Problem Database

Problem Display
PID: 6740 (8/4Kp1Q/5pNp/5k1n/2pR3P/3N2r1/6pb/1B6 w - - 0 1)

Mansfield, Comins

Evening Standard, 1933

8/4Kp1Q/5pNp/5k1n/2pR3P/3N2r1/6pb/1B6

#2

7 + 9

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Re3+
      • 2.Sge5#
    • 1...Rf3
      • 2.Sge5#
      • 2.Sf8#
      • 2.Sh8#
    • 1...Rh3
      • 2.Sge5#
      • 2.Sf8#
      • 2.Sh8#
    • 1...Rg4
      • 2.Sdf4#
    • 1...Rg5
      • 2.Sc1#
      • 2.Se1#
      • 2.Sb2#
      • 2.Sf2#
      • 2.Sb4#
      • 2.Sc5#
      • 2.Sde5#
    • 1...Sf4
      • 2.Rxf4#
    • 1...Sg7
      • 2.Rf4#
  • Keys
    • 1.Kd6!
      • threat
        • 2.Se7#
      • 1...Rxd3+
        • 2.Se5#
      • 1...Re3+
        • 2.Sge5#
      • 1...Rf3+
        • 2.Sge5#
      • 1...Rh3+
        • 2.Sge5#
      • 1...Rg4+
        • 2.Sdf4#
      • 1...Rg5+
        • 2.Sde5#
      • 1...Rxg6+
        • 2.Se5#
      • 1...fxg6
        • 2.Qd7#
      • 1...Sf4
        • 2.Rxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • R(c);CHECK,N_GUARD::QAB(G)+S(E)
    • R(c);N_GUARD,SBLOCK::B(A)+S(B)
    • S(f);N_GUARD::R1(C),XS(f)
    • S(f);N_GUARD::R1(C)
  • Actual
    • K(F);S_FLIGHT
    • Threat
      • QAB(G)+S(E),DCHECK
    • Vars
      • R(c);CHECK,N_GUARD,P_PINR(C),P_SPINR(c),XS(B)::QAB(G)+S(E)
      • R(c);CHECK,N_GUARD::QAB(G)+S(E)
      • R(c);CHECK,N_GUARD,SBLOCK::B(A)+S(B)
      • R(c);CHECK,N_GUARD::B(A)+S(B)
      • R(c);CHECK,N_GUARD,P_SPINR(c),XS(E)::B(A)+S(B)
      • P(i);OGATE,P_SPINP(i),SBLOCK,XS(E)::QAB(G)
      • S(f);N_GUARD::R1(C),XS(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).