MESON Chess Problem Database

Problem Display
PID: 257713 (5B1b/3p4/1R6/r2PP1R1/1p2kp1p/1Bp1N3/n1K1NPP1/8 w - - 0 1)

Labai, Zoltan

1/2 HM., Vladimirov (Yakov)-80 JT, 2015

5B1b/3p4/1R6/r2PP1R1/1p2kp1p/1Bp1N3/n1K1NPP1/8

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd5
      • 2.Bxd5#
    • 1...Sc1
      • 2.Rxb4#
    • 1...fxe3
      • 2.f3#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Sd6#
      • 1...Kxe5
        • 2.Sfg3#
      • 1...Bxe5
        • 2.f3#
      • 1...d6
        • 2.Sxd6#
      • 1...Rxd5!
    • 1.Rf6?
      • threat
        • 2.Rxf4#
      • 1...fxe3
        • 2.Rf4#
        • 2.f3#
      • 1...f3
        • 2.Rf4#
        • 2.gxf3#
      • 1...Bxf6!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sd6#
      • 1...Kxd5
        • 2.Sd2#
      • 1...Rxd5
        • 2.f3#
      • 1...Bxe5
        • 2.Rxe5#
      • 1...d6
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(g);OGATE,XP(G)::B(E),XR(g)
    • S(a);N_GUARD::R(J),XP(c)
    • P(e);SBLOCK,XS(F)::P(C)
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • K(d);P-FLIGHT,S_CUTP(e),S_CUTP(f),XP(H)::R(I)+S(F)
        • B(i);SBLOCK,XP(H)::P(C)
        • P(h);::S(F),XP(h)
      • Refutation
        • R(g);XP(G)
    • Try
      • R(J);
      • Threat
        • R1(J),XP(e)
      • Refutation
        • B(i);XR(J)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(d);S_CUTP(b),S_FLIGHT,XP(G)::B(E)+S(F)
      • R(g);SBLOCK,XP(G)::P(C)
      • B(i);OGATE,XP(H)::R1(I),XB(i)
      • P(h);::S(F),XP(h)
HTML5 logo

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).