MESON Chess Problem Database

Problem Display
PID: 94654 (4r1q1/4Rpn1/8/4p3/4pk1P/Rr2NN1K/7P/1n1B2BQ w - - 0 1)

Cieslak, Francizek

Miskolcsi Magasapitok, 1952

4r1q1/4Rpn1/8/4p3/4pk1P/Rr2NN1K/7P/1n1B2BQ

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sf5
      • 2.Sd5#
    • 1...exf3
      • 2.Qxf3#
    • 1...f5
      • 2.Sg2#
  • Tries
    • 1.Rxf7+?
      • 1...Sf5
        • 2.Sd5#
        • 2.Rxf5#
      • 1...Qxf7!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Se2#
      • 1...Rxe3+
        • 2.Bxe3#
      • 1...exd4
        • 2.Qxe4#
      • 1...Rb2
        • 2.Sd5#
      • 1...Sc3
        • 2.Sg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • S(g);SBLOCK::S(F)
    • P(c);OGATE,XS(G)::QAR1(C),XP(c)
    • P(f);SBLOCK::S(F)
  • Tries
    • Try
      • R(J);CHECK,XP(f)
      • Refutation
        • Q(i);XR(J)
  • Actual
    • S(G);P_SPINS(F)
    • Threat
      • S(G)
    • Vars
      • R(b);CHECK,OGATE,XS(F)::B(B),XR(b)
      • P(e);XS(G)::QAR1(C),XP(c)
      • R(b);N_PINS(F)::S(F)
      • S(a);N_PINS(F)::S(F)
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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).