MESON Chess Problem Database

Problem Display
PID: 239643 (1BbR3Q/1prp4/n1Pkp1K1/1B1P4/2R5/8/8/8 w - - 0 1)

Maleika, Gerhard

Candela MT (Problemas), 2018

1BbR3Q/1prp4/n1Pkp1K1/1B1P4/2R5/8/8/8

#2

8 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Qd4#
    • 1...Ke7
      • 2.Qf8#
    • 1...exd5
      • 2.Qf6#
  • Tries
    • 1.Qf6?
      • threat
        • 2.Qxe6#
      • 1...Kxd5
        • 2.Qd4#
      • 1...Sc5!
  • Keys
    • 1.cxd7!
      • threat
        • 2.dxc8S#
      • 1...Kxd5
        • 2.Qd4#
      • 1...Ke7
        • 2.Qf8#
      • 1...Bxd7
        • 2.Rxd7#
      • 1...exd5
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINR(e),OGATEB,P-FLIGHT,XP(C)::QAR1(H)
    • K(b);N_SPINP(f),N_SPINR(e),S_FLIGHT::QAB1(H)
    • P(c);OGATEB,SBLOCK,XP(C)::QAR2(H)
  • Tries
    • Try
      • Q(H);N_PINP(f),P_PINP(c)
      • Threat
        • QAR1(H),XP(c)
      • Vars
        • K(b);N_SPINP(c),N_SPINR(e),OGATEB,P-FLIGHT,P_SPINP(f),XP(C)::QAR1(H)
      • Refutation
        • S(a);
  • Actual
    • P(D);XP(f)
    • Threat
      • PXB(g)=S
    • Vars
      • K(b);N_SPINR(e),OGATEB,P-FLIGHT,XP(C)::QAR1(H)
      • K(b);N_SPINR(e),S_FLIGHT::QAB1(H)
      • B(g);OGATE,P_SPINB(g),XP(D)::R1(G),XB(g)
      • P(c);OGATEB,SBLOCK,XP(C)::QAR2(H)
HTML5 logo

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).