MESON Chess Problem Database

Problem Display
PID: 218561 (6K1/Q2p4/3B4/R1bkP1P1/5P2/3N4/1PB5/3r1N2 w - - 0 1)

Anonymous

London Weeks News, 1881

6K1/Q2p4/3B4/R1bkP1P1/5P2/3N4/1PB5/3r1N2

#2

11 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qxc5#
    • 1...Kc6
      • 2.Rxc5#
  • Keys
    • 1.Sb4+!
      • 1...Kc4
        • 2.Qxc5#
      • 1...Kd4
        • 2.Qxc5#
      • 1...Ke6
        • 2.f5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(c);N_SPINB(b),S_FLIGHT::QAR1(J),XB(b)
    • K(c);N_SPINB(b),S_FLIGHT::R1(F),XB(b)
  • Actual
    • S(D);CHECK
    • Vars
      • K(c);N_SPINB(b),S_FLIGHT::QAR1(J),XB(b)
      • K(c);P-FLIGHT::QAB1(J),XB(b)
      • K(c);N_SPINB(b),S_FLIGHT::P(E)
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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).