MESON Chess Problem Database

Problem Display
PID: 74564 (2b1k2r/1N1ppp1p/1p5Q/P7/p3R1P1/4PpKp/1PPN4/5B1R w - - 0 1)

Williams, Philip Hamilton

Chess Amateur (The), 1910

2b1k2r/1N1ppp1p/1p5Q/P7/p3R1P1/4PpKp/1PPN4/5B1R

#2

12 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Rxe5#
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qxe7#
        • 2.Qxh8#
      • 1...Kf8
        • 2.Qxh8#
      • 1...d5
        • 2.Qxe7#
      • 1...d6
        • 2.Qxe7#
      • 1...Rf8
        • 2.Rxe7#
        • 2.Qxe7#
      • 1...Rg8
        • 2.Qxe7#
      • 1...e5
        • 2.Qd8#
      • 1...e6
        • 2.Qd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(f);OGATEB::R(H),XP(f)
  • Actual
    • Q(K);
    • Threat
      • DUALS(2)
    • Vars
      • K(j);N_SPINP(f),P-FLIGHT,P_SPINP(g)::QAR2(K),XR(k)
      • P(e);::QAR1(K),XP(f)
      • R(k);P_PINP(I)::QAR1(K),XP(f)
      • P(f);OGATE::QAR1(K)
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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).