MESON Chess Problem Database

Problem Display
PID: 185876 (6bB/1N1pN3/K2p1n1r/2P1r1R1/2pk3q/Q4P2/2p4b/4RB2 w - - 0 1)

Peake, JL

Chess, 1957

6bB/1N1pN3/K2p1n1r/2P1r1R1/2pk3q/Q4P2/2p4b/4RB2

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Qxe3#
    • 1...Rxc5
      • 2.Qe3#
    • 1...Rd5
      • 2.Qe3#
    • 1...Rf5
      • 2.Qe3#
    • 1...Rxg5
      • 2.Qe3#
    • 1...Re6
      • 2.Rd5#
    • 1...Se4
      • 2.Qe3#
    • 1...Sg4
      • 2.Re4#
    • 1...Sd5
      • 2.Sf5#
    • 1...Sh5
      • 2.Qe3#
    • 1...Sh7
      • 2.Qe3#
    • 1...Se8
      • 2.Qe3#
  • Keys
    • 1.Sxd6!
      • threat
        • 2.Sb5#
      • 1...Rxc5
        • 2.Qe3#
      • 1...Re6
        • 2.Rd5#
      • 1...Se4
        • 2.Qe3#
      • 1...Sg4
        • 2.Re4#
      • 1...Sd5
        • 2.Sf5#
      • 1...Sh5
        • 2.Qe3#
      • 1...Sh7
        • 2.Qe3#
      • 1...Se8
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • R(f);N_GUARD,P_SPINS(h)::QAB1(C),XR(f)
    • R(f);N_GUARD,P_SPINS(h),XP(E)::QAB1(C)
    • R(f);N_GUARD,P_SPINS(h)::QAB1(C)
    • R(f);N_GUARD,P_SPINS(h),XR(F)::QAB1(C)
    • R(f);OGATE,P_SPINS(h)::R1(F)
    • S(h);P_SPINR(f)::QAB1(C)
    • S(h);N_GUARD,P_SPINR(f),S_CUTQ(e)::R1(A)
    • S(h);P_SPINR(f),SBLOCK::S(I)
  • Actual
    • S(H);XP(g)
    • Threat
      • S(H)
    • Vars
      • R(f);N_GUARD,P_SPINS(h),XP(E)::QAB1(C)
      • R(f);OGATE,P_PINS(H),P_SPINS(h)::R1(F)
      • S(h);P_PINS(H),P_SPINR(f)::QAB1(C)
      • S(h);N_GUARD,P_PINS(H),P_SPINR(f),S_CUTQ(e)::R1(A)
      • S(h);P_PINS(H),P_SPINR(f),SBLOCK::S(I)
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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).