MESON Chess Problem Database

Problem Display
PID: 268736 (8/4K3/1pp1N3/1pNk1pp1/4q1p1/6B1/3P2Q1/3R1B2 w - - 0 1)

Tkachenko, Sergiy Ivanovich

Vasilenko, Anatoly Grigorovich

Zaldo MT (Problemas), 2019

8/4K3/1pp1N3/1pNk1pp1/4q1p1/6B1/3P2Q1/3R1B2

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Qxe4#
  • Tries
    • 1.Rc1?
      • 1...Qxg2
        • 2.Bxg2#
      • 1...bxc5
        • 2.Rxc5#
      • 1...f4
        • 2.Qxe4#
      • 1...b4
        • 2.Bc4#
      • 1...Qf3!
    • 1.d4?
      • threat
        • 2.Qa2#
      • 1...Qxg2
        • 2.Sc7#
      • 1...bxc5
        • 2.dxc5#
      • 1...Qf3
        • 2.Sc7#
      • 1...b4!
  • Keys
    • 1.d3!
      • threat
        • 2.dxe4#
      • 1...Qxg2
        • 2.Bxg2#
      • 1...f4
        • 2.Qxe4#
      • 1...Qf3
        • 2.Qa2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(e);N_GUARD::QAB1(D),XQ(a)
  • Tries
    • Try
      • R(A);
      • Vars
        • Q(a);N_PINS(G),N_SPINQ(a),OGATE,XQ(D)::B(B),XQ(a)
        • P(g);OGATE,XS(F)::R1(A),XP(g)
        • P(e);N_GUARD::QAB1(D),XQ(a)
        • P(c);N_GUARD::B(B)
      • Refutation
        • Q(a);N_PINS(G)
    • Try
      • P(C);
      • Threat
        • QAB(D)
      • Vars
        • Q(a);N_PINS(G),N_SPINQ(a),XQ(D)::S(G)
        • P(g);OGATE,XS(F)::R(A)+P(C),XP(g)
        • Q(a);N_PINS(G)::S(G)
      • Refutation
        • P(c);
  • Actual
    • P(C);
    • Threat
      • R(A)+P(C)DCHECK,XQ(a)
    • Vars
      • Q(a);N_PINS(G),N_SPINQ(a),OGATE,XQ(D)::B(B),XQ(a)
      • P(e);N_GUARD::QAB1(D),XQ(a)
      • Q(a);N_GUARD,N_PINS(G)::QAB(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).