MESON Chess Problem Database

Problem Display
PID: 254572 (8/1N4B1/3P3p/P6p/2N1kP1P/5p2/B4K1Q/1R4R1 w - - 0 1)

Labai, Zoltan

Zamanov, Vidadi

Die Schwalbe, 2021

8/1N4B1/3P3p/P6p/2N1kP1P/5p2/B4K1Q/1R4R1

#2

12 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Sd2+?
      • 1...Kf5
        • 2.Rb5#
      • 1...Kd3!
    • 1.Sc5+?
      • 1...Kf5
        • 2.Se3#
      • 1...Kd5!
    • 1.Rbc1?
      • 1...Kd3
        • 2.Sc5#
        • 2.Bb1#
      • 1...Kd5
        • 2.Sd2#
      • 1...Kf5!
    • 1.Rgc1?
      • 1...Kd3
        • 2.Sc5#
      • 1...Kd5
        • 2.Sd2#
      • 1...Kf5!
    • 1.Qh3?
      • 1...Kd3
        • 2.Qf5#
      • 1...Kxf4
        • 2.Qxf3#
      • 1...Kd5!
  • Keys
    • 1.Rb4!
      • 1...Kd3
        • 2.Bb1#
      • 1...Kd5
        • 2.Se5#
      • 1...Kf5
        • 2.Se3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(b);N_GUARD,S_FLIGHT::R(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(K);CHECK
      • Vars
        • K(b);S_FLIGHT::S(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(C)+S(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::S(K)
        • K(b);N_GUARD,S_FLIGHT::B(C)+S(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(b);N_GUARD,P_SPINP(a),S_FLIGHT::QAB(E)
        • K(b);N_GUARD,P-FLIGHT,XP(G)::QAR1(E),XP(a)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(b);N_GUARD,S_FLIGHT::B(C)
      • K(b);N_GUARD,S_FLIGHT::B(C)+S(F)
      • K(b);N_GUARD,S_FLIGHT::S(F)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).