MESON Chess Problem Database

Problem Display
PID: 173509 (b7/3r1q2/1R3Bn1/1r1Q4/2BP1b2/Np2kPp1/4N1P1/4K3 w - - 0 1)

Lind, Ingemar

5th HM., Belgrade Ty., 2017

b7/3r1q2/1R3Bn1/1r1Q4/2BP1b2/Np2kPp1/4N1P1/4K3

#2

10 + 9

114 Springaren 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Ra5
      • 2.Rxb3#
    • 1...Rc5
      • 2.Rxb3#
    • 1...Rbxd5
      • 2.Rxb3#
    • 1...Rb7
      • 2.Qe4#
    • 1...b2
      • 2.Sc2#
  • Tries
    • 1.Rxb5?
      • threat
        • 2.Rxb3#
      • 1...Rb7
        • 2.Qe4#
      • 1...b2
        • 2.Sc2#
        • 2.Rb3#
      • 1...Se5!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qd3#
      • 1...Qxc4
        • 2.Sxc4#
      • 1...Rxf5
        • 2.Rxb3#
      • 1...Rxd4
        • 2.Bxd4#
      • 1...Be4
        • 2.Qxe4#
      • 1...Se5
        • 2.Qxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • R(e);OGATE::R(I),XP(a)
    • R(e);OGATE,XQ(H)::R(I),XP(a)
    • R(g);S_CUTB(i)::QAR1(H)
    • P(a);N_GUARD::S(D)
  • Tries
    • Try
      • R(I);XR(e)
      • Threat
        • R(I),XP(a)
      • Vars
        • R(g);S_CUTB(i)::QAR1(H)
      • Refutation
        • S(f);
  • Actual
    • Q(H);
    • Threat
      • QAR1(H)
    • Vars
      • Q(h);XB(F)::S(D),XQ(h)
      • R(e);OGATE,XQ(H)::R(I),XP(a)
      • R(g);OGATE,XP(G)::B(J),XR(g)
      • B(i);N_GUARD::QAR1(H),XB(i)
      • S(f);N_GUARD::QAB1(H),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).