MESON Chess Problem Database

Problem Display
PID: 72183 (5k2/R2BN2R/4p2K/6Nb/5n2/5q2/1r3Q2/2b5 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1952

5k2/R2BN2R/4p2K/6Nb/5n2/5q2/1r3Q2/2b5

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Sxe6#
    • 1...Qh1
      • 2.Sxe6#
    • 1...Qg2
      • 2.Sxe6#
    • 1...Qb7
      • 2.Sxe6#
    • 1...Qa8
      • 2.Sxe6#
    • 1...Qa3
      • 2.Sxe6#
    • 1...Qc3
      • 2.Sxe6#
    • 1...Qd3
      • 2.Sxe6#
    • 1...Qg3
      • 2.Sxe6#
    • 1...Bg4
      • 2.Rf7#
    • 1...Bf7
      • 2.Rxf7#
  • Tries
    • 1.Ra8+?
      • 1...Qxa8
        • 2.Sxe6#
      • 1...Be8
        • 2.Rf7#
        • 2.Rxe8#
      • 1...Rb8!
    • 1.Qc5?
      • threat
        • 2.Rh8#
      • 1...Bf7
        • 2.Rxf7#
      • 1...Sg6
        • 2.Qc8#
      • 1...Qc3!
  • Keys
    • 1.Bb5!
      • threat
        • 2.Rh8#
      • 1...Qb7
        • 2.Sxe6#
      • 1...Qc3
        • 2.Sxe6#
      • 1...Bf7
        • 2.Rxf7#
      • 1...Sg6
        • 2.Ra8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • Q(c);P_SPINS(d)::S(B),XP(f)
    • B(e);N_GUARD::R1(G)
    • B(e);N_GUARD::R1(G),XB(e)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • Q(c);P_SPINS(d),XR(D)::S(B),XP(f)
      • Refutation
        • R(b);P_SPINR(b)
    • Try
      • Q(A);
      • Threat
        • R(G)
      • Vars
        • B(e);N_GUARD::R1(G),XB(e)
        • S(d);P_PINS(B),S_CUTB(e)::QAR(A)
      • Refutation
        • Q(c);
  • Actual
    • B(E);
    • Threat
      • R(G)
    • Vars
      • Q(c);P_SPINS(d)::S(B),XP(f)
      • B(e);N_GUARD::R1(G),XB(e)
      • S(d);P_PINS(B),P_SPINQ(c),S_CUTB(e)::R(D)
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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).