MESON Chess Problem Database

Problem Display
PID: 67717 (3K2NQ/3B2nb/1ppkp3/3r3R/2pn1p2/2N5/6rp/B3R2q w - - 0 1)

Sedgwick, Stanley

Chess, 1948

3K2NQ/3B2nb/1ppkp3/3r3R/2pn1p2/2N5/6rp/B3R2q

#2

8 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Sxe4#
    • 1...Bxg8
      • 2.Se4#
    • 1...Sdf5
      • 2.Se4#
    • 1...Sgf5
      • 2.Se4#
  • Tries
    • 1.Sh6?
      • threat
        • 2.Qf8#
      • 1...Kc5
        • 2.Qf8#
      • 1...Bg8
        • 2.Se4#
      • 1...Sdf5
        • 2.Se4#
      • 1...Sgf5
        • 2.Se4#
      • 1...Rf5!
    • 1.Qxg7?
      • threat
        • 2.Qf8#
        • 2.Qe7#
      • 1...Kc5
        • 2.Qf8#
        • 2.Qe7#
      • 1...Rf5
        • 2.Qe7#
      • 1...Sf5
        • 2.Se4#
      • 1...Rxg7!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Qf8#
      • 1...Kc5
        • 2.Qf8#
      • 1...Bg8
        • 2.Sce4#
        • 2.Sfe4#
      • 1...Sdf5
        • 2.Sce4#
      • 1...Sgf5
        • 2.Sfe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(m);N_GUARD::S(C),XB(m)
    • B(m);N_GUARD,XS(G)::S(C)
    • S(e);S_CUTB(m)::S(C)
    • S(l);S_CUTB(m)::S(C)
  • Tries
    • Try
      • S(G);
      • Threat
        • QAB(H)
      • Vars
        • K(j);P_PINB(E),P_SPINR(g),S_FLIGHT::QAB(H)
        • B(m);N_GUARD::S(C)
        • S(e);S_CUTB(m)::S(C)
        • S(l);S_CUTB(m)::S(C)
      • Refutation
        • R(g);
    • Try
      • Q(H);XS(l)
      • Threat
        • DUALS(2)
      • Vars
        • R(g);::QAB1(H)
        • S(e);S_CUTB(m)::S(C)
      • Refutation
        • R(b);XQ(H)
  • Actual
    • S(G);
    • Threat
      • QAB(H)
    • Vars
      • K(j);P_PINB(E),P_SPINR(g),S_FLIGHT::QAB(H)
      • S(e);S_CUTB(m)::S(C)
      • S(l);S_CUTB(m)::S(G)
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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).