MESON Chess Problem Database

Problem Display
PID: 159159 (q1b2N1K/4rR2/1r5p/1pPnk3/4N2B/1BpQ1P2/n6b/8 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Hlas l'udu, 1986

q1b2N1K/4rR2/1r5p/1pPnk3/4N2B/1BpQ1P2/n6b/8

#2

9 + 11

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Qa3
      • 2.Qxd5#
    • 1...Qa4
      • 2.Qxd5#
    • 1...Qa5
      • 2.Qxd5#
    • 1...Qa6
      • 2.Qxd5#
    • 1...Qa7
      • 2.Qxd5#
    • 1...Qb8
      • 2.Qxd5#
    • 1...Rc6
      • 2.Qxd5#
    • 1...Rbb7
      • 2.Qxd5#
    • 1...Reb7
      • 2.Qxd5#
  • Tries
    • 1.Sg3?
      • threat
        • 2.Qe4#
      • 1...Bf5
        • 2.Rxf5#
      • 1...Sf6
        • 2.Sg6#
      • 1...Se3
        • 2.f4#
      • 1...Qa4
        • 2.Qxd5#
      • 1...Sdb4
        • 2.f4#
      • 1...Sc7
        • 2.f4#
      • 1...Sf4!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Qe4#
      • 1...Bf5
        • 2.Rxf5#
      • 1...Sf6
        • 2.Sg6#
      • 1...Se3
        • 2.Sg6#
      • 1...Qa4
        • 2.Qxd5#
      • 1...Sdb4
        • 2.Sg6#
      • 1...Sf4
        • 2.Bf6#
      • 1...Sc7
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 8
  • Sets
    • Q(j);N_GUARD::QAR1(B),XS(e)
    • R(g);S_CUTQ(j)::QAR1(B),XS(e)
    • R(i);S_CUTQ(j)::QAR1(B),XS(e)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR1(B)
      • Vars
        • B(k);N_GUARD,P_PINS(H)::R1(G),XB(k)
        • S(e);S_CUTR(g)::S(H)
        • S(e);N_GUARD::P(C)
        • Q(j);N_GUARD::QAR1(B),XS(e)
      • Refutation
        • S(e);
  • Actual
    • S(D);
    • Threat
      • QAR1(B)
    • Vars
      • B(k);N_GUARD,P_PINS(H)::R1(G),XB(k)
      • S(e);::S(H)
      • Q(j);N_GUARD::QAR1(B),XS(e)
      • S(e);N_GUARD,SBLOCK::B(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).