MESON Chess Problem Database

Problem Display
PID: 225562 (4Q3/2p1B3/2pp4/P2k1p2/4RP2/1K2p2B/2P5/2N5 w - - 0 1)

Kovacik, Jozef

Praca, 1954

4Q3/2p1B3/2pp4/P2k1p2/4RP2/1K2p2B/2P5/2N5

#2

9 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Re5+?
      • 1...Kd4
        • 2.Se2#
        • 2.c3#
      • 1...dxe5!
    • 1.Qf7+?
      • 1...Kc5
        • 2.Qc4#
        • 2.Qxf5#
      • 1...Kxe4!
    • 1.Qg8+?
      • 1...Kc5
        • 2.Qc4#
      • 1...Kxe4!
    • 1.c4+?
      • 1...Kc5
        • 2.Sd3#
      • 1...Kxe4!
  • Keys
    • 1.Se2!
      • 1...Kxe4
        • 2.Bg2#
      • 1...Kc5
        • 2.Re5#
      • 1...fxe4
        • 2.Qh5#
      • 1...c5
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK
      • Refutation
        • P(e);XR(E)
    • Try
      • Q(I);CHECK
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • Q(I);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT,P_SPINP(e)::QAR1(I)
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • P(B);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINP(e)::S(A)
      • Refutation
        • K(b);S_FLIGHT,XR(E)
  • Actual
    • S(A);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(E)::B(D)
      • K(b);P-FLIGHT,P_SPINP(e)::R(E)
      • P(c);OGATEB,SBLOCK,XR(E)::QAR(I)
      • P(d);SBLOCK::S(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).