MESON Chess Problem Database

Problem Display
PID: 168408 (5r2/2R3pn/4PkP1/p3NP2/1n1p3K/B5pB/3pQbp1/5R2 w - - 0 1)

Petite, Efren

Zadachi i Etyudi, 2004

5r2/2R3pn/4PkP1/p3NP2/1n1p3K/B5pB/3pQbp1/5R2

#2

10 + 11

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rf7
      • 2.Rxf7#
    • 1...Ra8
      • 2.Rf7#
    • 1...Rb8
      • 2.Rf7#
    • 1...Rc8
      • 2.Rf7#
    • 1...Rd8
      • 2.Rf7#
    • 1...Re8
      • 2.Rf7#
    • 1...Rg8
      • 2.Rf7#
    • 1...Rh8
      • 2.Rf7#
    • 1...Be1
      • 2.Sg4#
    • 1...Bg1
      • 2.Sg4#
    • 1...Be3
      • 2.Sg4#
    • 1...Sa2
      • 2.Sd7#
      • 2.Be7#
    • 1...Sc2
      • 2.Sd7#
      • 2.Be7#
    • 1...Sd3
      • 2.Sd7#
      • 2.Be7#
    • 1...Sd5
      • 2.Sd7#
    • 1...Sa6
      • 2.Sd7#
      • 2.Be7#
    • 1...Sc6
      • 2.Sd7#
  • Tries
    • 1.Bxb4?
      • threat
        • 2.Sd7#
        • 2.Be7#
      • 1...Be3
        • 2.Sg4#
        • 2.Sd7#
      • 1...Rf7
        • 2.Rxf7#
      • 1...Rd8
        • 2.Be7#
        • 2.Rf7#
      • 1...Re8
        • 2.Sd7#
        • 2.Rf7#
      • 1...axb4!
  • Keys
    • 1.e7!
      • threat
        • 2.Sd7#
      • 1...Be3
        • 2.Sg4#
      • 1...Rd8
        • 2.exd8Q#
        • 2.exd8B#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 12
  • Sets
    • R(k);N_GUARD::R1(J),XR(k)
    • R(k);N_GUARD::R1(J)
    • B(b);::S(F)
    • S(e);::S(F)
  • Tries
    • Try
      • B(C);XS(e)
      • Threat
        • DUALS(2)
      • Vars
        • R(k);N_GUARD::R1(J),XR(k)
      • Refutation
        • P(g);XB(C)
  • Actual
    • P(H);
    • Threat
      • S(F)
    • Vars
      • B(b);::S(F)
      • R(k);OGATE::PXR(k)=Q
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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).