Problem Display
PID: 46143 (K2R2R1/1p2p2N/2pPk1P1/8/4B1Pp/b1PNp3/1r4n1/B7 w - - 0 1)

Groeneveld, Cornelis

Probleemblad, 2002

K2R2R1/1p2p2N/2pPk1P1/8/4B1Pp/b1PNp3/1r4n1/B7

#2

11 + 9


SOLUTION


  • SOUND
  • Sets
    • 1...exd6
      • 2.Rge8#
  • Tries
    • 1.Rg7?
      • threat
        • 2.Rxe7#
      • 1...exd6
        • 2.Re8#
      • 1...Bxd6!
    • 1.Rgf8?
      • threat
        • 2.Sg5#
      • 1...exd6
        • 2.Rfe8#
      • 1...Rb5!
    • 1.g5?
      • threat
        • 2.Sf8#
      • 1...exd6
        • 2.Rge8#
      • 1...Rf2!
  • Keys
    • 1.c4!
      • threat
        • 2.Bf5#
      • 1...exd6
        • 2.Rge8#
      • 1...Rf2
        • 2.Sg5#
      • 1...Rb5
        • 2.Sf8#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(i);OGATEB,XP(F)::R(K)
  • Tries
    • Try
      • R(K);
      • Threat
        • R1(K),XP(i)
      • Vars
        • P(i);OGATEB,SBLOCK,XP(F)::R(J)
      • Refutation
        • B(c);XP(F)
    • Try
      • R(K);
      • Threat
        • S(H)
      • Vars
        • P(i);OGATEB,XP(F)::R(K)
      • Refutation
        • R(a);
    • Try
      • P(E);
      • Threat
        • S(H)
      • Vars
        • P(i);OGATEB,XP(F)::R(K)
      • Refutation
        • R(a);
  • Actual
    • P(B);
    • Threat
      • B(D)
    • Vars
      • P(i);OGATEB,XP(F)::R(K)
      • R(a);::S(H)


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).