MESON Chess Problem Database

Problem Display
PID: 15568 (2R5/P1n1B2Q/Rn6/p2k1NP1/P7/3Np3/4P3/1B5K w - - 0 1)

Quack, Godfrey C

The Problemist, 1985

2R5/P1n1B2Q/Rn6/p2k1NP1/P7/3Np3/4P3/1B5K

#2

12 + 5

SOLUTION

  • SOUND
  • Keys
    • 1.Bf6!
      • 1...Kc4
        • 2.Ba2#
      • 1...Ke4
        • 2.Se7#
      • 1...Kc6
        • 2.a8Q#
        • 2.a8B#
      • 1...Ke6
        • 2.Sf4#
      • 1...Sxa4
        • 2.Sxe3#
      • 1...Sxc8
        • 2.Sxe3#
      • 1...Sxa6
        • 2.Sf4#
      • 1...Sc4
        • 2.Se7#
      • 1...Sd7
        • 2.Sxe3#
      • 1...Sba8
        • 2.Sxe3#
      • 1...Sb5
        • 2.Sf4#
      • 1...Se6
        • 2.Qb7#
      • 1...Sca8
        • 2.Sf4#
      • 1...Se8
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 0
  • Sets
  • Actual
    • B(J);
    • Vars
      • K(c);P_SPINS(e),S_FLIGHT::B(A)
      • K(c);S_FLIGHT::QAB(K)+S(F)
      • K(c);P_SPINS(d),S_FLIGHT::P=Q
      • K(c);P_SPINS(d),S_FLIGHT::S(D)
      • S(d);XP(E)::S(F),XP(a)
      • S(d);XR(L)::S(F),XP(a)
      • S(e);XR(H)::S(D)
      • S(d);SBLOCK::S(F)
      • S(d);::S(F),XP(a)
      • S(e);::S(D)
      • S(e);OGATE,SBLOCK::QAB(K)
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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).