MESON Chess Problem Database

Problem Display
PID: 240653 (q2r1b2/p2PpKp1/P3n3/Rp1k2pQ/N3p3/1P1b4/2P1N2B/3R4 w - - 0 1)

Larsen, Lars Aksglade (= Aksglade, Lars)

Thema Danicum, 1983

q2r1b2/p2PpKp1/P3n3/Rp1k2pQ/N3p3/1P1b4/2P1N2B/3R4

#2

11 + 12

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...e3
      • 2.Qf3#
  • Tries
    • 1.Rxb5+?
      • 1...Sc5
        • 2.Rxc5#
      • 1...Kc6!
  • Keys
    • 1.Qg6!
      • threat
        • 2.Qxe6#
      • 1...Kc6
        • 2.Qxe6#
      • 1...Sd4
        • 2.Sec3#
      • 1...Qc6
        • 2.Qf5#
      • 1...Sf4
        • 2.Rxb5#
      • 1...Sc5
        • 2.Sac3#
      • 1...Sc7
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • P(b);OGATEB::QAB(H)
  • Tries
    • Try
      • R(G);CHECK,P_PINP(e),XP(c)
      • Vars
        • S(f);N_GUARD,P_SPINS(f)::R1(G),XS(f)
      • Refutation
        • K(d);N_SPINB(a),N_SPINP(e),S_FLIGHT
  • Actual
    • Q(H);
    • Threat
      • QAB1(H),XS(f)
    • Vars
      • K(d);N_SPINB(a),N_SPINP(c),P_SPINS(f),S_FLIGHT::QAR2(H),XS(f)
      • S(f);N_SPINB(a),SBLOCK::S(C)
      • Q(j);SBLOCK::QAR2(H)
      • S(f);N_GUARD::R(G),XP(c)
      • S(f);N_SPINP(c),SBLOCK::S(F)
      • S(f);::P(B)
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).