MESON Chess Problem Database

Problem Display
PID: 268195 (8/B4nK1/2p3p1/4r3/2q1kN2/2Pp1pQ1/B7/3R2N1 w - - 0 1)

Eland, R

Probleemblad, 1985

8/B4nK1/2p3p1/4r3/2q1kN2/2Pp1pQ1/B7/3R2N1

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Re1#
  • Tries
    • 1.Qxg6+?
      • 1...Kxf4
        • 2.Sh3#
      • 1...Rf5!
  • Keys
    • 1.Sxd3!
      • threat
        • 2.Qxf3#
      • 1...Kd5
        • 2.Sc5#
      • 1...Kf5
        • 2.Qxg6#
      • 1...Qxd3
        • 2.Qg4#
      • 1...Rf5
        • 2.Sf2#
      • 1...Sg5
        • 2.Qxe5#
      • 1...f2
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(e);SBLOCK::R(A)
  • Tries
    • Try
      • Q(E);CHECK,XP(g)
      • Vars
        • K(d);P-FLIGHT,S_CUTR(e),XS(F)::S(B)
      • Refutation
        • R(e);P_SPINR(e)
  • Actual
    • S(F);XP(a)
    • Threat
      • QAB1(E),XP(b)
    • Vars
      • K(d);N_GUARD,P_SPINQ(c),S_CUTR(e),S_FLIGHT::R(A)+S(F)
      • K(d);N_GUARD,S_CUTR(e),S_FLIGHT::QAB1(E),XP(g)
      • Q(c);XS(F)::QAR2(E)
      • R(e);SBLOCK::S(F)
      • S(h);N_GUARD::QAR1(E),XR(e)
      • P(b);::QAB1(E)
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).