MESON Chess Problem Database

Problem Display
PID: 202511 (Q2n2r1/npppP3/1p3Pp1/1rPk4/1P1N1RBb/3N2p1/p2R4/K5B1 w - - 0 1)

Rimmer, Travis

Comm., Brisbane Courier, 1923

Q2n2r1/npppP3/1p3Pp1/1rPk4/1P1N1RBb/3N2p1/p2R4/K5B1

#2

12 + 13

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sac6
      • 2.Qxa2#
    • 1...Sc8
      • 2.Qxa2#
    • 1...Sdc6
      • 2.Qxg8#
  • Tries
    • 1.Sf3?
      • threat
        • 2.Sde5#
      • 1...Kc6
        • 2.Sde5#
      • 1...Rxb4
        • 2.Sxb4#
      • 1...Sac6
        • 2.Qxa2#
      • 1...Sdc6
        • 2.Qxg8#
      • 1...Se6!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Sde5#
      • 1...Kxc6
        • 2.Se5#
      • 1...Rxb4
        • 2.Sdxb4#
        • 2.Scxb4#
      • 1...Saxc6
        • 2.Qxa2#
      • 1...Sdxc6
        • 2.Qxg8#
      • 1...bxc6
        • 2.Rd4#
      • 1...dxc6
        • 2.Rd4#
      • 1...Se6
        • 2.Bf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(h);N_SPINP(i),OGATE::QAB(L),XP(a)
    • S(h);OGATE::QAB(L),XP(a)
    • S(l);N_SPINP(i),OGATE::QAB(L),XR(m)
  • Tries
    • Try
      • S(F);
      • Threat
        • R(C)+S(D)
      • Vars
        • K(e);S_FLIGHT::S(D)
        • R(d);XP(E)::R(C)+S(D),DCHECK,XR(d)
        • S(h);N_SPINP(i),OGATE,SBLOCK::QAB(L),XP(a)
        • S(l);N_SPINP(i),OGATE,SBLOCK::QAB(L),XR(m)
      • Refutation
        • S(l);
  • Actual
    • S(F);N_PINP(i)
    • Threat
      • R(C)+S(D)
    • Vars
      • K(e);P_SPINP(i),S_FLIGHT,XS(F)::S(D)
      • S(h);OGATE,SBLOCK,XS(F)::QAB(L),XP(a)
      • S(l);OGATE,SBLOCK,XS(F)::QAB(L),XR(m)
      • P(i);P_SPINP(i),XS(F)::R1(G)
      • P(k);SBLOCK,XS(F)::R1(G)
      • S(l);SBLOCK::B(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).