MESON Chess Problem Database

Problem Display
PID: 181849 (1b3Q1B/1nr5/R7/r1R1P2b/1p1k2pK/n2p2p1/1P1N1P2/8 w - - 0 1)

Gamage, Frederick

5th Prize, Hampstead and Highgate Express, 1905-1906

1b3Q1B/1nr5/R7/r1R1P2b/1p1k2pK/n2p2p1/1P1N1P2/8

#2

9 + 11

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bf7
      • 2.e6#
    • 1...Sxc5
      • 2.Rd6#
      • 2.Qd6#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sd8
      • 2.Qd6#
    • 1...gxf2
      • 2.Qxf2#
  • Tries
    • 1.Rd6+?
      • 1...Sxd6
        • 2.Qxd6#
      • 1...Kxc5!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Sb3#
      • 1...Kxc5
        • 2.e6#
      • 1...Raxc5
        • 2.Qe4#
      • 1...Rcxc5
        • 2.Qe4#
      • 1...Sxc5
        • 2.Rd6#
      • 1...gxf2
        • 2.Qxf2#
      • 1...Bf7
        • 2.e6#
      • 1...b3
        • 2.Sxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • B(h);S_CUTR(j)::B(I)+P(F)
    • S(i);N_GUARD::QAR2(H),XS(i)
    • S(i);N_GUARD::QAR2(H)
    • P(c);OGATE,XP(C)::QAB(H),XP(c)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • S(i);OGATE,XR(G)::QAR2(H),XS(i)
      • Refutation
        • K(e);S_FLIGHT,XR(E)
  • Actual
    • Q(H);
    • Threat
      • S(B)
    • Vars
      • K(e);S_FLIGHT,XR(E)::QAR(H)+P(F)
      • R(g);SBLOCK,XR(E)::QAR1(H)
      • R(j);SBLOCK,XR(E)::QAR1(H)
      • S(i);N_GUARD,SBLOCK,XR(E)::R(G)
      • P(c);OGATE,XP(C)::QAB(H),XP(c)
      • B(h);S_CUTR(j)::B(I)+P(F)
      • P(d);::S(B),XP(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).