MESON Chess Problem Database

Problem Display
PID: 235331 (1R2N3/p4b2/Q4N2/rnn5/2kP3R/prp5/KbPP4/8 w - - 0 1)

Larsen, Lars Aksglade (= Aksglade, Lars)

Skakbladet, 2003

1R2N3/p4b2/Q4N2/rnn5/2kP3R/prp5/KbPP4/8

#2

9 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rb4
      • 2.Sd6#
  • Tries
    • 1.Qc8?
      • threat
        • 2.Qxc5#
      • 1...Sxd4
        • 2.Sd6#
        • 2.d3#
      • 1...Sd6
        • 2.Sxd6#
        • 2.d3#
      • 1...Sc7
        • 2.Sd6#
      • 1...Kb4!
    • 1.Qc6?
      • threat
        • 2.Qxc5#
      • 1...Sxd4
        • 2.Sd6#
        • 2.d3#
      • 1...Sd6
        • 2.Sxd6#
        • 2.d3#
      • 1...Sc7
        • 2.Sd6#
        • 2.d3#
        • 2.dxc5#
        • 2.d5#
      • 1...Kb4!
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qxc5#
      • 1...Kb4
        • 2.d5#
      • 1...Sxd4
        • 2.Rxd4#
        • 2.Qxd4#
      • 1...Sxd6
        • 2.Sxd6#
      • 1...Sc7
        • 2.dxc5#
      • 1...Sd3
        • 2.cxb3#
      • 1...Sa4
        • 2.d3#
      • 1...Se4
        • 2.d3#
      • 1...Sa6
        • 2.d3#
      • 1...Se6
        • 2.d3#
      • 1...Sb7
        • 2.d3#
      • 1...Sd7
        • 2.d3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 1
  • Sets
    • R(c);SBLOCK::S(I)
  • Tries
    • Try
      • Q(F);N_PINS(g),P_PINS(h)
      • Threat
        • QAR1(F),XS(h)
      • Vars
        • S(g);N_GUARD,N_SPINS(h)::S(I)
      • Refutation
        • K(e);N_SPINS(h),P-FLIGHT,P_SPINS(g)
    • Try
      • Q(F);N_PINS(g),P_PINS(h)
      • Threat
        • QAR1(F),XS(h)
      • Refutation
        • K(e);N_SPINS(h),P-FLIGHT,P_SPINS(g)
  • Actual
    • Q(F);N_PINS(g)
    • Threat
      • QAR1(F),XS(h)
    • Vars
      • K(e);P-FLIGHT,P_SPINS(g)::R(E)+P(D)
      • S(g);XQ(F)::S(I),XS(g)
      • S(g);N_GUARD::R(E)+P(D),XS(h)
      • S(h);N_GUARD,SBLOCK::P(B),XR(c)
      • S(h);N_GUARD::P(C)
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).