MESON Chess Problem Database

Problem Display
PID: 257241 (8/8/8/5Np1/4p1Pb/2p1B1pQ/1pP1k1pN/1K4Rb w - - 0 1)

Kardos, Tivadar

Probleemblad, 1947

8/8/8/5Np1/4p1Pb/2p1B1pQ/1pP1k1pN/1K4Rb

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...gxh2
      • 2.Sd4#
  • Tries
    • 1.Qxh4?
      • 1...gxh2
        • 2.Qf2#
      • 1...gxh4!
  • Keys
    • 1.Sf1!
      • 1...gxf1Q+
        • 2.Qxf1#
      • 1...gxf1R+
        • 2.Qxf1#
      • 1...Kd1
        • 2.S1xg3#
      • 1...Ke1
        • 2.S1xg3#
      • 1...Kf3
        • 2.Sd4#
      • 1...gxf1S
        • 2.Qxf1#
      • 1...gxf1B
        • 2.Qxf1#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • P(f);XS(D)::S(H)
  • Tries
    • Try
      • Q(F);XB(h)
      • Vars
        • P(f);OGATE,XS(D)::QAR1(F)
      • Refutation
        • P(i);XQ(F)
  • Actual
    • S(D);
    • Vars
      • P(d);CHECK,OGATE,XS(D)::QAB1(F),XQ(d)
      • P(d);CHECK,OGATE,XS(D)::QAB1(F),XR(d)
      • K(c);N_GUARD,S_CUTB(h),S_FLIGHT::R(B)+S(D),XP(f)
      • K(c);N_GUARD,P-FLIGHT,S_CUTB(h)::R(B)+S(D),XP(f)
      • K(c);N_GUARD,P_SPINP(f),S_FLIGHT::S(H)
      • P(d);OGATE,XS(D)::QAB1(F),XS(d)
      • P(d);OGATE,XS(D)::QAB1(F),XB(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).