MESON Chess Problem Database

Problem Display
PID: 66373 (1B2B2K/8/7Q/5PN1/5rk1/7b/4ppp1/8 w - - 0 1)

Kanonik, Dimitry Kirillovich

Syzonenko, Viktor N

2nd HM., Radjanska Ukraina, 1982

1B2B2K/8/7Q/5PN1/5rk1/7b/4ppp1/8

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kg3
      • 2.Qxh3#
    • 1...Kxf5
      • 2.Bd7#
    • 1...Rxf5
      • 2.Qh5#
  • Tries
    • 1.Se4?
      • threat
        • 2.Qxf4#
        • 2.Qh5#
      • 1...Kf3
        • 2.Qxf4#
      • 1...Kxf5
        • 2.Qg6#
      • 1...Rxe4
        • 2.Qh5#
      • 1...f1Q
        • 2.Qh5#
      • 1...f1R
        • 2.Qh5#
      • 1...Rf3
        • 2.Qg5#
        • 2.Qh5#
      • 1...Rxf5!
    • 1.Qh4+?
      • 1...Kxf5
        • 2.Qxf4#
      • 1...Kxh4!
    • 1.Qh5+?
      • 1...Kg3
        • 2.Qxh3#
      • 1...Kxf5!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qxf4#
      • 1...Kxf3
        • 2.Qxf4#
      • 1...Kg3
        • 2.Qxf4#
      • 1...Kxf5
        • 2.Qg6#
      • 1...Rxf3
        • 2.Qh5#
      • 1...Rxf5
        • 2.Sh2#
      • 1...Ra4
        • 2.Qh5#
      • 1...Rb4
        • 2.Qh5#
      • 1...Rc4
        • 2.Qh5#
      • 1...Rd4
        • 2.Qh5#
      • 1...Re4
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(f);P-FLIGHT,P_SPINR(e)::QAR1(C),XB(d)
    • K(f);OGATEB,S_FLIGHT,XP(A)::B(E)
    • R(e);SBLOCK,XP(A)::QAB1(C)
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(f);S_FLIGHT::QAR1(C),XR(e)
        • K(f);S_FLIGHT,XP(A)::QAB1(C)
        • R(e);XS(B)::QAB1(C)
        • P(b);::QAB1(C)
      • Refutation
        • R(e);XP(A)
    • Try
      • Q(C);CHECK
      • Vars
        • K(f);OGATE,S_FLIGHT,XP(A)::QAR1(C),XR(e)
      • Refutation
        • K(f);P-FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(f);P-FLIGHT,P_SPINR(e)::QAR1(C),XB(d)
      • Refutation
        • K(f);S_FLIGHT,XP(A)
  • Actual
    • S(B);
    • Threat
      • QAR1(C),XR(e)
    • Vars
      • K(f);S_FLIGHT,XS(B)::QAR1(C),XR(e)
      • K(f);P-FLIGHT,P_SPINR(e)::QAB1(C),XR(e)
      • K(f);S_FLIGHT,XP(A)::QAB1(C)
      • R(e);SBLOCK,XS(B)::QAB1(C)
      • R(e);SBLOCK,XP(A)::S(B)
      • R(e);::QAB1(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).