MESON Chess Problem Database

Problem Display
PID: 201758 (2K2Q2/1p1PR2P/Bp6/qr1pN2n/1b2k1p1/1r1NBp1b/5P2/4R3 w - - 0 1)

Reilly, William Henry

Western Daily Mercury, 1919

(First published on Fri Jun 13 1919)

2K2Q2/1p1PR2P/Bp6/qr1pN2n/1b2k1p1/1r1NBp1b/5P2/4R3

#2

11 + 12

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3+
      • 2.Bc5#
    • 1...Rc5+
      • 2.Sc6#
    • 1...Sg3
      • 2.Qf4#
    • 1...Sf4
      • 2.Qxf4#
    • 1...Sg7
      • 2.Qf4#
    • 1...g3
      • 2.Qxf3#
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qg6#
      • 1...Rc3+
        • 2.Bc5#
      • 1...Rc5+
        • 2.Sc6#
      • 1...Sg3
        • 2.Qf4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sg7
        • 2.Qf4#
      • 1...g3
        • 2.Qxf3#
      • 1...d4
        • 2.Bd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(a);CHECK,S_CUTB(d)::R(A)+B(D)
    • R(h);CHECK,S_CUTB(d)::R(H)+S(E)
    • S(j);N_GUARD::QAR1(K)
    • S(j);N_GUARD::QAR1(K),XS(j)
    • P(f);N_GUARD,P_PINP(G)::QAB1(K),XP(b)
  • Actual
    • Q(K);
    • Threat
      • QAB(K)
    • Vars
      • R(a);CHECK,S_CUTB(d)::R(A)+B(D)
      • R(h);CHECK,S_CUTB(d)::R(H)+S(E)
      • S(j);N_GUARD::QAR1(K)
      • S(j);N_GUARD::QAR1(K),XS(j)
      • P(f);N_GUARD,P_PINP(G)::QAB1(K),XP(b)
      • P(i);SBLOCK::R(A)+B(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).