MESON Chess Problem Database

Problem Display
PID: 246454 (4B3/n1B3p1/8/2Nk2p1/K2PR1N1/1P6/2npR3/2b5 w - - 0 1)

Petite, Efren

Europe Echecs, 1996

4B3/n1B3p1/8/2Nk2p1/K2PR1N1/1P6/2npR3/2b5

#2

9 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.Se3#
    • 1...Se1
      • 2.Se3#
    • 1...Sa3
      • 2.Se3#
    • 1...Se3
      • 2.Sxe3#
    • 1...Sb4
      • 2.Se3#
    • 1...Sxd4
      • 2.Re5#
    • 1...Sc6
      • 2.Bf7#
    • 1...g6
      • 2.Sf6#
  • Tries
    • 1.Rxd2?
      • threat
        • 2.Re5#
      • 1...Sc6
        • 2.Bf7#
      • 1...Bxd2!
    • 1.Rf4?
      • threat
        • 2.Re5#
      • 1...Se3
        • 2.Sxe3#
      • 1...Sc6
        • 2.Bf7#
      • 1...gxf4!
  • Keys
    • 1.Rf2!
      • threat
        • 2.Rf5#
      • 1...Sxd4
        • 2.Re5#
      • 1...Se3
        • 2.Sxe3#
      • 1...Sc6
        • 2.Bf7#
      • 1...g6
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • S(b);N_GUARD::S(F)
    • S(b);N_GUARD::S(F),XS(b)
    • S(b);SBLOCK,XP(D)::R1(E)
    • S(f);SBLOCK::B(I)
    • P(g);N_GUARD::S(F)
  • Tries
    • Try
      • R(A);XP(c)
      • Threat
        • R1(E)
      • Vars
        • S(f);SBLOCK::B(I)
      • Refutation
        • B(a);XR(A)
    • Try
      • R(E);
      • Threat
        • R1(A)
      • Vars
        • S(b);N_GUARD::S(F),XS(b)
        • S(f);SBLOCK::B(I)
      • Refutation
        • P(e);XR(E)
  • Actual
    • R(A);
    • Threat
      • R(A)
    • Vars
      • S(b);SBLOCK,XP(D)::R1(E)
      • S(b);N_GUARD::S(F),XS(b)
      • S(f);SBLOCK::B(I)
      • P(g);N_GUARD::S(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).