MESON Chess Problem Database

Problem Display
PID: 161036 (2N5/5p2/8/2pNkP1n/4P2K/4Q3/4bP2/8 w - - 0 1)

Rumyantsev, Sergei Yuryewitch

Trepalin-70 JT, 2009

2N5/5p2/8/2pNkP1n/4P2K/4Q3/4bP2/8

#2

7 + 5

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Sg3
      • 2.f4#
    • 1...Sf6
      • 2.f4#
    • 1...Sg7
      • 2.f4#
  • Tries
    • 1.Sdb6?
      • threat
        • 2.Sd7#
      • 1...Kf6
        • 2.Qc3#
      • 1...Sf6
        • 2.f4#
      • 1...Bb5!
    • 1.Sd6?
      • threat
        • 2.Sxf7#
      • 1...f6
        • 2.Sf7#
      • 1...Kxd6!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Sd7#
      • 1...Kxf6
        • 2.Qc3#
      • 1...Sxf6
        • 2.f4#
      • 1...Bb5
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(d);N_GUARD::P(A)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • K(c);S_FLIGHT::QAB(B)
        • S(d);N_GUARD,SBLOCK::P(A)
      • Refutation
        • B(a);
    • Try
      • S(G);
      • Threat
        • S(G),XP(e)
      • Vars
        • P(e);::S(G)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(c);S_FLIGHT,XS(E)::QAB(B)
      • S(d);N_GUARD,SBLOCK,XS(E)::P(A)
      • B(a);N_GUARD::S(E)
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).