MESON Chess Problem Database

Problem Display
PID: 161855 (Q3b1r1/7r/4N1Pk/3p1P2/2pK2P1/8/1P6/8 w - - 0 1)

Aksenov, Vitaly I

Kozatska Shakhinitsya, 2005

Q3b1r1/7r/4N1Pk/3p1P2/2pK2P1/8/1P6/8

#2

7 + 6

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Qa3?
      • threat
        • 2.Qe3#
        • 2.Qh3#
      • 1...Rxg6
        • 2.Qh3#
      • 1...Bxg6
        • 2.Qe3#
      • 1...c3!
    • 1.Qb8?
      • threat
        • 2.Qh2#
        • 2.Qf4#
      • 1...Rxg6
        • 2.Qh2#
      • 1...Bxg6
        • 2.Qf4#
      • 1...Rc7!
    • 1.Qd8?
      • threat
        • 2.Qh4#
        • 2.Qg5#
      • 1...Rxg6
        • 2.Qh4#
      • 1...Bxg6
        • 2.Qg5#
      • 1...Re7!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Qc1#
        • 2.Qh1#
      • 1...Rxg6
        • 2.Qh1#
      • 1...Bxg6
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • R(f);XP(F)::QAR(G)
        • B(e);XP(F)::QAB(G)
      • Refutation
        • P(a);
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • R(f);XP(F)::QAR(G)
        • B(e);XP(F)::QAB(G)
      • Refutation
        • R(d);
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • R(f);XP(F)::QAR2(G)
        • B(e);XP(F)::QAB1(G)
      • Refutation
        • R(d);
  • Actual
    • Q(G);
    • Threat
      • DUALS(2)
    • Vars
      • R(f);XP(F)::QAR(G)
      • B(e);XP(F)::QAB(G)
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).