MESON Chess Problem Database

Problem Display
PID: 72647 (1K1kB3/2N1N1nR/2p1p3/n1B1R1pp/6b1/3p1rQp/5p2/8 w - - 0 1)

Marik, Josef V

Tijdschrift vd KNSB, 1936

1K1kB3/2N1N1nR/2p1p3/n1B1R1pp/6b1/3p1rQp/5p2/8

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Qxd3#
    • 1...Rf6
      • 2.Qxd3#
    • 1...Rf7
      • 2.Qxd3#
    • 1...Rf8
      • 2.Qxd3#
    • 1...Sb3
      • 2.Sxc6#
    • 1...Sc4
      • 2.Sxc6#
    • 1...Sb7
      • 2.Sxc6#
  • Tries
    • 1.Rd5+?
      • 1...cxd5
        • 2.Qd6#
      • 1...exd5!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Be7#
      • 1...Rxf5
        • 2.Qxd3#
      • 1...Bxf5
        • 2.Qxg5#
      • 1...Sxf5
        • 2.Rd7#
      • 1...Sxe8
        • 2.Sxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(c);OGATE::QAR(A),XP(b)
    • S(f);N_GUARD::S(E),XP(i)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • P(i);XR(C)::QAR2(A)
      • Refutation
        • P(j);XR(C)
  • Actual
    • S(E);
    • Threat
      • B(B)
    • Vars
      • R(c);OGATE,XS(E)::QAR(A),XP(b)
      • B(e);OGATE,XS(E)::QAB(A),XP(g)
      • S(k);OGATE,XS(E)::R1(F)
      • S(k);N_GUARD,SBLOCK,XB(H)::S(D),XP(j)
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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).