MESON Chess Problem Database

Problem Display
PID: 195125 (8/2qp1Q2/2bp1p1b/1p4r1/1pNP2P1/1pk2N1R/R1Pp4/r4BBK w - - 0 1)

Jerrard, Ernest Haslam Harvey

Brisbane Courier, 1918

8/2qp1Q2/2bp1p1b/1p4r1/1pNP2P1/1pk2N1R/R1Pp4/r4BBK

#2

11 + 13

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Sg5#
    • 1...Bxf3+
      • 2.Rxf3#
    • 1...bxc4
      • 2.Qxc4#
    • 1...d5
      • 2.Sfe5#
  • Keys
    • 1.Sa3!
      • threat
        • 2.Qxb3#
      • 1...Bxf3+
        • 2.Rxf3#
      • 1...bxa2
        • 2.Qb3#
      • 1...bxc2
        • 2.Rxc2#
      • 1...Rb1
        • 2.Sxb1#
      • 1...Rd5
        • 2.Sg5#
      • 1...Bd5
        • 2.Sxb5#
      • 1...b2
        • 2.Qb3#
      • 1...d5
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(g);N_PINS(F)::R(G)+S(F)
    • B(h);CHECK,OGATE,P_SPINB(h),XS(F)::R(G),XB(h)
    • P(f);OGATE,XS(H)::QAR1(K),XP(f)
    • P(i);N_PINS(F)::R(G)+S(F)
  • Actual
    • S(H);
    • Threat
      • QAR1(K),XP(c)
    • Vars
      • B(h);CHECK,OGATE,P_SPINB(h),XS(F)::R(G),XB(h)
      • P(c);XR(D)::QAR1(K)
      • P(c);OGATE,XP(E)::R1(D),XP(c)
      • R(a);N_GUARD::S(H),XR(a)
      • R(g);N_PINS(F)::R(G)+S(F)
      • B(h);N_GUARD,S_CUTR(g)::S(H),XP(f)
      • P(c);::QAR1(K)
      • P(i);N_PINS(F)::R(G)+S(F)
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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).