MESON Chess Problem Database

Problem Display
PID: 6938 (5b2/K2k3r/1B6/1N1p1N1p/B7/2RpR2Q/1p6/3b4 w - - 0 1)

Mansfield, Comins

BCF 019. Ty., 1935-1936

5b2/K2k3r/1B6/1N1p1N1p/B7/2RpR2Q/1p6/3b4

#2

8 + 8

102 Probleemblad 1974
3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Bc2
      • 2.Sg3#
      • 2.Sfd4#
      • 2.Sh4#
      • 2.Sfd6#
      • 2.Sh6#
      • 2.Sg7#
    • 1...Be2
      • 2.Sa3#
      • 2.Sbd4#
      • 2.Sbd6#
    • 1...Bb3
      • 2.Sg3#
      • 2.Sfd4#
      • 2.Sh4#
      • 2.Sfd6#
      • 2.Sh6#
      • 2.Sg7#
    • 1...Bf3
      • 2.Sa3#
      • 2.Sbd4#
      • 2.Sbd6#
    • 1...Bxa4
      • 2.Sg3#
      • 2.Sfd4#
      • 2.Sh4#
      • 2.Sfd6#
      • 2.Sh6#
      • 2.Sg7#
    • 1...Bg4
      • 2.Sa3#
      • 2.Sbd4#
      • 2.Sbd6#
    • 1...Bg7
      • 2.Re7#
  • Tries
    • 1.Sc7+?
      • 1...Kc8
        • 2.Re8#
      • 1...Kd8
        • 2.Re8#
      • 1...Bxa4!
    • 1.Se7+?
      • 1...Ke8
        • 2.Sd6#
      • 1...Bg4!
  • Keys
    • 1.Rb3!
      • threat
        • 2.Sbd6#
      • 1...Kc6+
        • 2.Sc7#
      • 1...Kc8+
        • 2.Se7#
      • 1...Bxb3
        • 2.Sfd4#
      • 1...Bd6
        • 2.Sbxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(h);N_GUARD,S_CUTR(g)::R1(B)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(f);P_PINS(E),S_FLIGHT::R(B)
        • K(f);P-FLIGHT,P_PINS(E)::R1(B)
      • Refutation
        • B(a);XB(D)
    • Try
      • S(F);CHECK
      • Vars
        • K(f);P_PINS(F),S_FLIGHT::B(D)+S(E),DCHECK
      • Refutation
        • B(a);P_SPINB(a)
  • Actual
    • R(A);
    • Threat
      • B(D)+S(E)
    • Vars
      • K(f);CHECK,S_FLIGHT::B(D)+S(E)
      • K(f);CHECK,S_FLIGHT::QAB(C)+S(F),DCHECK
      • B(a);N_GUARD,XR(A)::QAB(C)+S(F)
      • B(h);::B(D)+S(E),XB(h)
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).