MESON Chess Problem Database

Problem Display
PID: 75603 (8/RPP4p/2KP4/N2pp3/k1n3Q1/p4R1r/N1r5/1b1BBnb1 w - - 0 1)

Gamage, Frederick

1st Prize=, Christian Science Monitor, 1948

8/RPP4p/2KP4/N2pp3/k1n3Q1/p4R1r/N1r5/1b1BBnb1

#2

11 + 11

5397 Frederick Gamage (Prcic) 2004
133 The Problemist Supplement 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Bh2
      • 2.Sb3#
      • 2.Sxc4#
    • 1...d4
      • 2.Sxc4#
  • Tries
    • 1.b8Q?
      • threat
        • 2.Sc3#
        • 2.Qb3#
        • 2.Qb4#
        • 2.Qb5#
      • 1...Rxf3
        • 2.Qb4#
        • 2.Qb5#
      • 1...Bxa2
        • 2.Qb4#
        • 2.Qb5#
      • 1...Bxa7
        • 2.Qb3#
        • 2.Qb4#
        • 2.Qb5#
      • 1...Bd4
        • 2.Qb3#
        • 2.Qb4#
        • 2.Qb5#
      • 1...Bc5
        • 2.Sc3#
        • 2.Qb3#
        • 2.Qb5#
      • 1...Sd2
        • 2.Sc3#
        • 2.Qb4#
        • 2.Qb5#
      • 1...d4
        • 2.Sxc4#
        • 2.Qb3#
        • 2.Qb4#
        • 2.Qb5#
      • 1...Bb6!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Kxd5#
      • 1...Sce3+
        • 2.Kb6#
      • 1...Sb6+
        • 2.Sc4#
      • 1...Sxd6+
        • 2.Kxd6#
      • 1...Sfe3
        • 2.Kc5#
      • 1...d4
        • 2.Kc5#
        • 2.Kd5#
        • 2.Sxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(i);N_SPINS(h),S_CUTB(c)::R(I)+S(F),XS(h)
  • Tries
    • Try
      • P(J);
      • Threat
        • DUALS(4)
      • Refutation
        • B(c);
  • Actual
    • Q(E);N_PINS(h)
    • Threat
      • QAB(E)+K(G),XP(i)
    • Vars
      • S(h);CHECK::QAB(E)+K(G)
      • S(h);CHECK,S_CUTB(c)::R(I)+S(F)
      • S(h);CHECK,XP(H)::QAB(E)+K(G),XS(h)
      • S(b);::QAB(E)+K(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).