MESON Chess Problem Database

Problem Display
PID: 203456 (8/3N1Rp1/4p1B1/4PqQ1/4k3/1K2nN2/3B1R2/8 w - - 0 1)

Nield, Joshua

Brisbane Courier, 1924

8/3N1Rp1/4p1B1/4PqQ1/4k3/1K2nN2/3B1R2/8

#2

9 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Sc5#
      • 2.Qxe3#
    • 1...Sd5
      • 2.Sc5#
  • Tries
    • 1.Sf6+?
      • 1...Kd3
        • 2.Qxe3#
      • 1...gxf6!
  • Keys
    • 1.Qd8!
      • 1...Kd3
        • 2.Sc5#
      • 1...Kf4
        • 2.Qh4#
      • 1...Kd5
        • 2.Qa8#
      • 1...Qxg6
        • 2.Sc5#
      • 1...Sd1
        • 2.Sc5#
      • 1...Sf1
        • 2.Sc5#
      • 1...Sc2
        • 2.Sc5#
      • 1...Sg2
        • 2.Sc5#
      • 1...Sc4
        • 2.Sc5#
      • 1...Sg4
        • 2.Sc5#
      • 1...Sd5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::S(H)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(F),XS(a)
      • Refutation
        • P(e);XS(H)
  • Actual
    • Q(F);
    • Vars
      • K(b);S_FLIGHT::QAR(F)+S(H),DCHECK
      • K(b);P-FLIGHT,P_SPINS(a)::QAR2(F)
      • K(b);N_SPINQ(c),S_FLIGHT::QAB(F)
      • Q(c);N_SPINQ(c),XB(G)::S(H)
      • S(a);::S(H)
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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).