MESON Chess Problem Database

Problem Display
PID: 99107 (8/5ppQ/B5n1/6p1/1p2p3/1Rb1k2p/3rNn1P/2B1N1K1 w - - 0 1)

Ersek, Tibor

Sakkelet, 1995

8/5ppQ/B5n1/6p1/1p2p3/1Rb1k2p/3rNn1P/2B1N1K1

#2

8 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Qxh3#
    • 1...Sg4
      • 2.Qxh3#
  • Tries
    • 1.Qxg7?
      • threat
        • 2.Qd4#
      • 1...Se5
        • 2.Qxg5#
      • 1...f6
        • 2.Qa7#
      • 1...Sd3!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Sc2#
      • 1...Sg4
        • 2.Qxh3#
      • 1...g4
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(b);N_GUARD::QAR(H),XP(e)
  • Tries
    • Try
      • Q(H);XP(k)
      • Threat
        • QAB1(H)
      • Vars
        • S(i);OGATE::QAB(H),XP(h)
        • P(j);OGATE::QAB(H)
      • Refutation
        • S(b);N_SPINB(c)
  • Actual
    • Q(H);
    • Threat
      • S(B)
    • Vars
      • S(b);N_GUARD::QAR(H),XP(e)
      • P(h);OGATE::QAB(H)
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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).