MESON Chess Problem Database

Problem Display
PID: 35064 (3N2Q1/kBpN4/4pq2/1pR2p2/2p5/2p5/2K5/8 w - - 0 1)

Naumov, R

Reitman, Mark

HM., Pat a Mat, 1994

3N2Q1/kBpN4/4pq2/1pR2p2/2p5/2p5/2K5/8

#2

6 + 8

3657 Izbrannie Shakhmatnie Zadachi Marka Reitmana 2000

SOLUTION

  • SOUND
  • Sets
    • 1...b4
      • 2.Ra5#
  • Tries
    • 1.Rc6?
      • threat
        • 2.Ra6#
      • 1...e5
        • 2.Qg1#
      • 1...Qxd8!
    • 1.Rxc7?
      • threat
        • 2.Sc6#
      • 1...Qxd8
        • 2.Qg1#
      • 1...e5!
  • Keys
    • 1.Qg1!
      • threat
        • 2.Qa1#
      • 1...Qxd8
        • 2.Rxc7#
      • 1...e5
        • 2.Rc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(c);OGATE::R(B)
  • Tries
    • Try
      • R(B);
      • Threat
        • R1(B)
      • Vars
        • P(e);S_CUTQ(f)::QAB(F)
      • Refutation
        • Q(f);XS(E)
    • Try
      • R(B);XP(h)
      • Threat
        • S(E)
      • Vars
        • Q(f);N_GUARD,XS(E)::QAB(F)
      • Refutation
        • P(e);
  • Actual
    • Q(F);
    • Threat
      • QAR(F)
    • Vars
      • Q(f);N_GUARD,XS(E)::QAB(F)+R(B),XP(h)
      • P(e);S_CUTQ(f)::QAB(F)+R(B)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).