MESON Chess Problem Database

Problem Display
PID: 2347 (4K3/4p3/4p3/2kp1Rp1/2PRr1r1/1Q2nqB1/8/8 w - - 0 1)

Gardner, John Carey

Source?, 0000

4K3/4p3/4p3/2kp1Rp1/2PRr1r1/1Q2nqB1/8/8

#2

6 + 9

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qb5#
    • 1...Rxd4
      • 2.Qb5#
  • Keys
    • 1.Bc7!
      • threat
        • 2.Qb6#
      • 1...Kxd4
        • 2.Bb6#
      • 1...Kc6
        • 2.Qb6#
      • 1...Rxd4
        • 2.Qb5#
      • 1...Sxc4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(e);N_SPINP(f),P-FLIGHT::QAB1(A)
    • R(c);SBLOCK,XR(D)::QAR1(A)
  • Actual
    • B(B);
    • Threat
      • QAB1(A)
    • Vars
      • K(e);N_SPINP(f),S_FLIGHT,XR(D)::B(B)
      • K(e);N_SPINP(f),P-FLIGHT::QAR1(A)
      • R(c);SBLOCK,XR(D)::QAR1(A)
      • S(a);OGATE,XP(C)::QAR1(A),XS(a)
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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).