MESON Chess Problem Database

Problem Display
PID: 224394 (1B6/n7/BKp3p1/6PP/4p2b/4P1pk/R4Q2/5N2 w - - 0 1)

Wendel, Fred

Wilkes-Barre Record, 1887

1B6/n7/BKp3p1/6PP/4p2b/4P1pk/R4Q2/5N2

#2

9 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bxg5
      • 2.Qxg3#
    • 1...Sb5
      • 2.Bc8#
    • 1...Sc8+
      • 2.Bxc8#
    • 1...g2
      • 2.Qxg2#
    • 1...gxh5
      • 2.Qf5#
  • Tries
    • 1.Qf3?
      • threat
        • 2.Rh2#
      • 1...Sc8+
        • 2.Bxc8#
      • 1...exf3!
  • Keys
    • 1.Sh2!
      • threat
        • 2.Qg2#
      • 1...Sc8+
        • 2.Bxc8#
      • 1...Bxg5
        • 2.Qxg3#
      • 1...gxf2
        • 2.Bf1#
      • 1...g2
        • 2.Qxg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(d);N_GUARD,XP(E)::QAR1(C),XP(a)
    • S(g);N_GUARD::B(G)
    • S(g);CHECK,N_GUARD::B(G),XS(g)
    • P(a);::QAB1(C),XP(a)
    • P(f);N_GUARD,XP(F)::QAB(C)
  • Tries
    • Try
      • Q(C);P_PINP(a)
      • Threat
        • R1(B)
      • Vars
        • S(g);CHECK,N_GUARD::B(G),XS(g)
      • Refutation
        • P(c);N_SPINP(a),XQ(C)
  • Actual
    • S(A);
    • Threat
      • QAB1(C)
    • Vars
      • S(g);CHECK,N_GUARD::B(G),XS(g)
      • B(d);N_GUARD,XP(E)::QAR1(C),XP(a)
      • P(a);N_GUARD,XQ(C)::B(G)
      • P(a);::QAB1(C),XP(a)
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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).