MESON Chess Problem Database

Problem Display
PID: 225589 (1b2R3/n2Np3/B7/1n1N1Q2/3k4/q4p2/8/4B2K w - - 0 1)

Lech, Anton

Praca, 1954

1b2R3/n2Np3/B7/1n1N1Q2/3k4/q4p2/8/4B2K

#2

7 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Bf2#
      • 2.Qd3#
    • 1...Sd6
      • 2.Qe5#
    • 1...Sc7
      • 2.Qe5#
  • Keys
    • 1.S5f6!
      • threat
        • 2.Qe4#
      • 1...Ke3
        • 2.Qe4#
      • 1...Kc4
        • 2.Qd5#
      • 1...Qd3
        • 2.Qc5#
      • 1...Qe3
        • 2.Qd5#
      • 1...Sc3
        • 2.Bf2#
        • 2.Qd3#
      • 1...Sd6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(d);S_CUTB(g)::QAB1(D)
  • Actual
    • S(C);
    • Threat
      • QAR1(D)
    • Vars
      • K(c);P_SPINP(f),S_FLIGHT::QAR1(D)
      • K(c);P-FLIGHT,P_SPINS(d)::QAB1(D)
      • Q(a);N_GUARD,SBLOCK::QAB1(D)
      • Q(a);SBLOCK::QAR1(D)
      • S(d);S_CUTB(g)::QAB1(D)
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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).