MESON Chess Problem Database

Problem Display
PID: 58145 (6Q1/R1pp4/P1kr4/5N2/N5p1/Kp3b1q/1n1pr1pB/1R3B2 w - - 0 1)

Fillery, William Edmund Frank

Chess Life, 1959

6Q1/R1pp4/P1kr4/5N2/N5p1/Kp3b1q/1n1pr1pB/1R3B2

#2

9 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Qa8#
    • 1...Rf2
      • 2.Se7#
      • 2.Qa8#
    • 1...Re3
      • 2.Qa8#
    • 1...Re4
      • 2.Qa8#
    • 1...Re5
      • 2.Qa8#
    • 1...Ree6
      • 2.Qa8#
    • 1...Re7
      • 2.Sxe7#
      • 2.Qa8#
    • 1...Rd4
      • 2.Sxd4#
    • 1...Rf6
      • 2.Sd4#
    • 1...Rg6
      • 2.Sd4#
    • 1...Rh6
      • 2.Sd4#
    • 1...Bd5
      • 2.Sd4#
    • 1...Sd1
      • 2.Qc4#
    • 1...Sc4+
      • 2.Qxc4#
  • Tries
    • 1.Se7+?
      • 1...Rxe7
        • 2.Qa8#
      • 1...Kb5!
  • Keys
    • 1.Qxb3!
      • threat
        • 2.Qb7#
      • 1...Sc4+
        • 2.Qxc4#
      • 1...Sxa4
        • 2.Qb5#
      • 1...Re3
        • 2.Bb5#
      • 1...Rd3
        • 2.Rxc7#
      • 1...Be4
        • 2.Se7#
      • 1...Bd5
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 9
  • Sets
    • R(c);::QAB(I)
    • R(j);N_GUARD::S(F),XR(j)
    • R(j);N_GUARD::S(F)
    • B(f);S_CUTR(j)::S(F)
    • S(a);N_GUARD::QAR2(I)
    • S(a);CHECK,N_GUARD::QAR2(I),XS(a)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • R(c);XS(F)::QAB(I)
      • Refutation
        • K(i);P_SPINR(c),S_FLIGHT
  • Actual
    • Q(I);XP(e)
    • Threat
      • QAB1(I)
    • Vars
      • S(a);CHECK,N_GUARD::QAR2(I),XS(a)
      • S(a);XS(E)::QAB1(I)
      • R(c);OGATE,P_PINQ(I)::B(B)
      • R(j);P_PINQ(I)::R1(H),XP(k)
      • B(f);P_PINQ(I),S_CUTR(c)::S(F)
      • B(f);P_PINQ(I),S_CUTR(j)::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).