MESON Chess Problem Database

Problem Display
PID: 108280 (6Q1/1pK3B1/rp1pp1p1/3k4/1P2p3/6N1/1NRp4/3bb2q w - - 0 1)

Ersek, Tibor

Bakcsi-50 JT (Vizugyi Sports Club), 1983

6Q1/1pK3B1/rp1pp1p1/3k4/1P2p3/6N1/1NRp4/3bb2q

#2

7 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxg3
      • 2.Rxd2#
  • Tries
    • 1.Rc5+?
      • 1...dxc5
        • 2.Qd8#
      • 1...bxc5!
    • 1.Qf8?
      • threat
        • 2.Qxd6#
      • 1...Bxg3
        • 2.Rxd2#
      • 1...b5!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qxd6#
      • 1...Bxg3
        • 2.Rxd2#
      • 1...b5
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD,XS(C)::R(B),XP(d)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • P(i);S_CUTP(h),XR(B)::QAR(G)
      • Refutation
        • P(h);XR(B)
    • Try
      • Q(G);N_PINP(j)
      • Threat
        • QAR1(G),XP(i)
      • Vars
        • B(b);N_GUARD,XS(C)::R(B),XP(d)
      • Refutation
        • P(h);
  • Actual
    • Q(G);N_PINP(j),P_PINP(i)
    • Threat
      • QAR1(G),XP(i)
    • Vars
      • B(b);N_GUARD,XS(C)::R(B),XP(d)
      • P(h);N_GUARD::R1(B)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).