MESON Chess Problem Database

Problem Display
PID: 178258 (4K3/4Np2/5R1Q/4kPp1/5nR1/2P5/8/8 w - - 0 1)

Kazimov, Islam

Vratnica-64, 2005

4K3/4Np2/5R1Q/4kPp1/5nR1/2P5/8/8

#2

7 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sd5
      • 2.Sc6#
  • Tries
    • 1.Kxf7?
      • 1...Se2
        • 2.Re6#
      • 1...Sg2
        • 2.Re6#
      • 1...Sd3
        • 2.Re6#
      • 1...Sh3
        • 2.Re6#
      • 1...Sd5
        • 2.Sc6#
        • 2.Sg6#
        • 2.Re6#
      • 1...Sh5
        • 2.Re6#
      • 1...Se6
        • 2.Rxe6#
      • 1...Sg6
        • 2.Re6#
      • 1...Ke4!
    • 1.Qg7?
      • threat
        • 2.Re6#
      • 1...Se6
        • 2.Rxe6#
      • 1...Ke4!
    • 1.Qh8?
      • threat
        • 2.Re6#
      • 1...Se6
        • 2.Rxe6#
      • 1...Ke4!
  • Keys
    • 1.Qh2!
      • 1...Ke4
        • 2.Qe2#
      • 1...Kxf6
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(a);SBLOCK::S(F)
  • Tries
    • Try
      • K(G);S_FLIGHT,XP(d)
      • Vars
        • S(a);N_GUARD::R1(D)
        • S(a);N_GUARD::R1(D),XS(a)
      • Refutation
        • K(b);P-FLIGHT,P_SPINS(a)
    • Try
      • Q(E);
      • Threat
        • QAB(E)+R(D),DCHECK
      • Vars
        • S(a);::QAB(E)+R(D),DCHECK,XS(a)
      • Refutation
        • K(b);P-FLIGHT,P_SPINS(a)
    • Try
      • Q(E);
      • Threat
        • QAB(E)+R(D),DCHECK
      • Vars
        • S(a);::QAB(E)+R(D),DCHECK,XS(a)
      • Refutation
        • K(b);P-FLIGHT,P_SPINS(a)
  • Actual
    • Q(E);P_PINS(a)
    • Vars
      • K(b);P-FLIGHT::QAR2(E)
      • K(b);N_SPINS(a),OGATEB,S_FLIGHT,XR(D)::QAB(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).