MESON Chess Problem Database

Problem Display
PID: 99648 (7B/5p1R/1K5p/1p2p3/3k4/1rN5/BN1P4/8 w - - 0 1)

Apro, Laszlo

Budapesti Sakkszovetseg, 1968

7B/5p1R/1K5p/1p2p3/3k4/1rN5/BN1P4/8

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Rd7#
    • 1...f6
      • 2.Rd7#
  • Tries
    • 1.Rxh6?
      • threat
        • 2.Rh4#
        • 2.Rd6#
      • 1...Rxb2
        • 2.Rd6#
      • 1...Rxc3
        • 2.Rh4#
      • 1...f5
        • 2.Rd6#
      • 1...f6!
  • Keys
    • 1.Rxf7!
      • threat
        • 2.Rf4#
        • 2.Rd7#
      • 1...Rxb2
        • 2.Rd7#
      • 1...Rxc3
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • P(f);OGATE::R(F)
    • P(f);N_SPINP(d),OGATE::R(F)
  • Tries
    • Try
      • R(F);XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XS(B)::R(F)
        • R(a);XS(D)::R(F)
        • P(f);::R(F)
      • Refutation
        • P(f);N_SPINP(d)
  • Actual
    • R(F);XP(f)
    • Threat
      • DUALS(2)
    • Vars
      • R(a);XS(B)::R(F)
      • R(a);XS(D)::R(F)
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).