MESON Chess Problem Database

Problem Display
PID: 54738 (8/3Kp3/3p4/3kPP1R/7R/3N4/8/8 w - - 0 1)

Fomichev, Evgeny Vasilevich

Die Schwalbe, 2003

8/3Kp3/3p4/3kPP1R/7R/3N4/8/8

#2

6 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.f6?
      • threat
        • 2.e6#
      • 1...dxe5
        • 2.Rxe5#
      • 1...exf6
        • 2.exf6#
      • 1...e6!
  • Keys
    • 1.exd6!
      • 1...exd6
        • 2.f6#
      • 1...e6
        • 2.fxe6#
      • 1...e5
        • 2.fxe5 ep#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(D);
      • Threat
        • R(E)+P(C)
      • Vars
        • P(b);OGATE,P_SPINP(b),XP(C)::R1(E),XP(b)
        • P(c);OGATE,XP(D)::R(E)+P(C),XP(c)
      • Refutation
        • P(c);
  • Actual
    • P(C);XP(b)
    • Vars
      • P(c);N_GUARD,XP(C)::R(E)+P(D)
      • P(c);OGATE::R(E)+P(D),XP(c)
      • P(c);OGATE::R(E)+P(D),XP(c),EP
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).