MESON Chess Problem Database

Problem Display
PID: 195172 (1b5K/1N1n2Q1/4p2p/1B1kq2R/rp6/3p1PN1/3r4/3R2B1 w - - 0 1)

Marshall, Burney Means

Densmore MT (Pittsburgh Gazette-Times), 1918

1b5K/1N1n2Q1/4p2p/1B1kq2R/rp6/3p1PN1/3r4/3R2B1

#2

9 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5
      • 2.Qd4#
    • 1...Qg5
      • 2.Qd4#
    • 1...Qxh5
      • 2.Qd4#
    • 1...Rda2
      • 2.Rxd3#
    • 1...Rb2
      • 2.Rxd3#
    • 1...Rc2
      • 2.Rxd3#
    • 1...Re2
      • 2.Rxd3#
    • 1...Rf2
      • 2.Rxd3#
    • 1...Rg2
      • 2.Rxd3#
    • 1...Rh2
      • 2.Rxd3#
  • Keys
    • 1.Se2!
      • threat
        • 2.Sf4#
      • 1...Qxh5
        • 2.Qd4#
      • 1...Rxe2
        • 2.Rxd3#
      • 1...dxe2
        • 2.Rxd2#
      • 1...Qf5
        • 2.Qd4#
      • 1...Qg5
        • 2.Qd4#
      • 1...b3
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • Q(f);N_PINQ(H)::QAR1(H)
    • Q(f);N_PINQ(H),N_SPINQ(f),XR(F)::QAR1(H)
    • R(a);OGATE,P_SPINP(b)::R(A),XP(b)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • Q(f);N_PINQ(H),N_SPINQ(f),XR(F)::QAR1(H)
      • R(a);OGATE,P_SPINP(b),XS(D)::R(A),XP(b)
      • P(b);OGATEB,P_SPINR(a),XS(D)::R(A),XR(a)
      • Q(f);N_PINQ(H)::QAR1(H)
      • P(d);N_GUARD::S(D)
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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).