MESON Chess Problem Database

Problem Display
PID: 169060 (5N2/1p2Bp2/1K3p2/2pknQ2/5P2/1PPp1b2/3N4/7r w - - 0 1)

Kapustin, Fedor Mikhailovich

Novitski, Petr Adrinovich

3rd Place, SuperProblem 021. TT, 2012

5N2/1p2Bp2/1K3p2/2pknQ2/5P2/1PPp1b2/3N4/7r

#2

8 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Qe4#
    • 1...Be2
      • 2.Qe4#
    • 1...Be4
      • 2.Qxe4#
    • 1...Bg4
      • 2.Qe4#
    • 1...Bh5
      • 2.Qe4#
    • 1...c4
      • 2.bxc4#
  • Tries
    • 1.Se6?
      • threat
        • 2.Sc7#
        • 2.c4#
      • 1...Rc1
        • 2.Sc7#
      • 1...c4
        • 2.Sc7#
        • 2.bxc4#
      • 1...fxe6!
  • Keys
    • 1.Qc8!
      • threat
        • 2.Qxc5#
      • 1...Sc4+
        • 2.bxc4#
      • 1...Sd7+
        • 2.Qxd7#
      • 1...Sc6
        • 2.Qd7#
      • 1...c4
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • B(c);N_GUARD::QAB1(E)
    • B(c);N_GUARD::QAB1(E),XB(c)
    • P(d);OGATE::P(B),XP(d)
  • Tries
    • Try
      • S(H);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);::S(H)
      • Refutation
        • P(i);XS(H)
  • Actual
    • Q(E);N_PINS(f)
    • Threat
      • QAR1(E),XP(d)
    • Vars
      • S(f);CHECK,OGATE::P(B),XS(f)
      • S(f);CHECK,N_GUARD::QAR2(E),XS(f)
      • S(f);N_GUARD::QAR2(E)
      • P(d);::QAR1(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).