MESON Chess Problem Database

Problem Display
PID: 139888 (4b1N1/R2n1p2/1pNk1bR1/1r3r2/1PBpQ1n1/1P1P2pq/1K3p2/8 w - - 0 1)

Anonymous

Budapest Chess Club, 1932

4b1N1/R2n1p2/1pNk1bR1/1r3r2/1PBpQ1n1/1P1P2pq/1K3p2/8

#2

10 + 13

56 The Problemist 1938

SOLUTION

  • SOUND
  • Sets
    • 1...fxg6
      • 2.Qe6#
  • Keys
    • 1.Sxd4!
      • threat
        • 2.Qe7#
      • 1...fxg6
        • 2.Qe6#
      • 1...Rbe5
        • 2.Qc6#
      • 1...Rfe5
        • 2.Qc6#
      • 1...Sge5
        • 2.Sxb5#
      • 1...Sde5
        • 2.Sxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(l);N_GUARD,N_SPINB(j),XR(H)::QAR1(F)
  • Actual
    • S(G);P_SPINS(G),XP(d)
    • Threat
      • QAB1(F)
    • Vars
      • P(l);N_GUARD,N_SPINB(j),XR(H)::QAR1(F)
      • R(f);N_PINS(G),SBLOCK::QAR1(F)
      • R(g);N_PINS(G),SBLOCK::QAR1(F)
      • S(e);N_PINS(G)::S(G),XR(f)
      • S(k);N_PINS(G)::S(G),XR(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).