MESON Chess Problem Database

Problem Display
PID: 179224 (8/3R3n/2N2PnB/5kr1/8/5Pp1/B5N1/4K3 w - - 0 1)

Innocenti, Didier

Phenix, 2016

8/3R3n/2N2PnB/5kr1/8/5Pp1/B5N1/4K3

#2

8 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf6
      • 2.Rf7#
  • Tries
    • 1.Se3+?
      • 1...Kxf6
        • 2.Bg7#
        • 2.Rd6#
        • 2.Rf7#
      • 1...Kf4!
    • 1.Sd4+?
      • 1...Kxf6
        • 2.Bg7#
      • 1...Ke5!
  • Keys
    • 1.Rd6!
      • threat
        • 2.Bb1#
      • 1...Sxf6
        • 2.Be6#
      • 1...Sf4
        • 2.Sh4#
      • 1...Se5
        • 2.Se7#
      • 1...Rg4
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • K(b);OGATEB,P-FLIGHT,XP(F)::R1(H)
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • K(b);P-FLIGHT,P_SPINR(c)
    • Try
      • S(E);CHECK
      • Vars
        • K(b);P-FLIGHT,XP(F)::B(G)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • R(H);
    • Threat
      • B(B)
    • Vars
      • S(e);SBLOCK,XP(F)::B(B)
      • S(d);N_GUARD,SBLOCK::S(C)
      • S(d);N_GUARD,SBLOCK::S(E)
      • R(c);::S(C)
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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).