MESON Chess Problem Database

Problem Display
PID: 282442 (Q7/3B4/3B4/3NR2P/3R4/2p5/2p3kN/2K4b w - - 0 1)

Marshall, GH

Manchester Weekly Post, 1885

(First published on Sat May 30 1885)

Q7/3B4/3B4/3NR2P/3R4/2p5/2p3kN/2K4b

#2

9 + 4

3713 Snap 2025
15239 Valois Notebooks 2025

SOLUTION

  • SOUND
  • Sets
    • 1...Kxh2
      • 2.Rg5#
    • 1...Kg3
      • 2.Re2#
  • Tries
    • 1.Rd2+?
      • 1...Kg1
        • 2.Bc5#
        • 2.Re1#
        • 2.Qa7#
      • 1...Kg3
        • 2.Re4#
      • 1...cxd2+!
    • 1.Rg4+?
      • 1...Kf2
        • 2.Bc5#
        • 2.Qa7#
      • 1...Kxh2
        • 2.Re3#
      • 1...Kh3!
    • 1.Rf5?
      • 1...Kh3
        • 2.Rf2#
        • 2.Rg5#
      • 1...Kg1!
    • 1.Qf8?
      • threat
        • 2.Rg5#
      • 1...Kxh2
        • 2.Rg5#
      • 1...Kg3
        • 2.Re2#
        • 2.Rg5#
      • 1...Kg1!
    • 1.Qg8+?
      • 1...Kxh2
        • 2.Rh4#
        • 2.Re1#
        • 2.Re2#
        • 2.Re3#
        • 2.Ree4#
        • 2.Rg5#
        • 2.Re7#
        • 2.Re8#
      • 1...Kf2!
  • Keys
    • 1.Qa7!
      • 1...Kg1
        • 2.Rd2#
      • 1...Kf2
        • 2.Rg4#
      • 1...Kxh2
        • 2.Rg5#
      • 1...Kg3
        • 2.Re2#

Anticipated by 4537(1876)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);N_GUARD,P-FLIGHT,XS(B)::B(G)+R(E)
    • K(c);N_GUARD,P-FLIGHT::B(G)+R(E)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(c);N_GUARD,P-FLIGHT,S_CUTP(d)::B(G)+R(E)
      • Refutation
        • P(d);CHECK,XR(C)
    • Try
      • R(C);CHECK
      • Vars
        • K(c);N_GUARD,P-FLIGHT,XS(B)::B(G)+R(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(E);
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(I);
      • Threat
        • R(E)
      • Vars
        • K(c);P-FLIGHT,XS(B)::B(G)+R(E)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(I);CHECK
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(I);
    • Vars
      • K(c);N_GUARD,P-FLIGHT,S_CUTP(d)::QAB(I)+R(C)
      • K(c);N_GUARD,P-FLIGHT::QAB(I)+R(C)
      • K(c);N_GUARD,P-FLIGHT,XS(B)::B(G)+R(E)
      • K(c);N_GUARD,P-FLIGHT::B(G)+R(E)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).