MESON Chess Problem Database

Problem Display
PID: 198375 (q7/1p1pN3/3B4/n6r/2kN2Rp/R1Pp4/K7/3Bb3 w - - 0 1)

Jerrard, Ernest Haslam Harvey

Brisbane Courier, 1920

q7/1p1pN3/3B4/n6r/2kN2Rp/R1Pp4/K7/3Bb3

#2

8 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5
      • 2.Sc2#
      • 2.Se2#
      • 2.Sf3#
      • 2.Sdf5#
      • 2.Sdc6#
      • 2.Se6#
    • 1...d2
      • 2.Be2#
    • 1...b5
      • 2.Sdc6#
  • Tries
    • 1.Sb3+?
      • 1...Kxc3
        • 2.Bb4#
      • 1...Kb5!
  • Keys
    • 1.Kb2!
      • threat
        • 2.Ra4#
      • 1...Rb5+
        • 2.Sb3#
      • 1...Bxc3+
        • 2.Rxc3#
      • 1...d2
        • 2.Be2#
      • 1...Sb3
        • 2.Bxb3#
      • 1...Sc6
        • 2.Bb3#
      • 1...b5
        • 2.Sdc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB::B(A)
    • P(g);SBLOCK::R(F)+S(E)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(D)::B(G)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • K(B);P-FLIGHT
    • Threat
      • R(C)
    • Vars
      • R(f);CHECK,SBLOCK::R(F)+S(E)
      • B(a);CHECK,OGATE,XP(D)::R1(C),XB(a)
      • P(b);OGATEB::B(A)
      • S(e);N_GUARD::B(A),XS(e)
      • S(e);N_GUARD::B(A)
      • P(g);SBLOCK::R(F)+S(E)
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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).