MESON Chess Problem Database

Problem Display
PID: 94526 (8/8/1K4Q1/3p4/B3P3/3k1N2/3B4/8 w - - 0 1)

Sova, Jakub

Ceskosl. narod, 1923

8/8/1K4Q1/3p4/B3P3/3k1N2/3B4/8

#2

6 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Bc2+?
      • 1...Ke2
        • 2.Qg2#
      • 1...Kc4
        • 2.Qc6#
      • 1...Kxc2!
    • 1.exd5+?
      • 1...Kc4
        • 2.Qe4#
      • 1...Ke2!
    • 1.e5+?
      • 1...Kc4
        • 2.Qc2#
      • 1...Ke2!
  • Keys
    • 1.Qg2!
      • 1...Kc4
        • 2.Qf1#
        • 2.Qe2#
      • 1...Kxe4
        • 2.Bc2#
      • 1...dxe4
        • 2.Qf1#
      • 1...d4
        • 2.Se5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);S_FLIGHT,XB(C)
    • Try
      • P(D);CHECK,XP(b)
      • Vars
        • K(a);S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(D);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(F);
    • Vars
      • K(a);S_FLIGHT,XP(D)::B(C)
      • P(b);SBLOCK,XP(D)::QAB(F)
      • P(b);SBLOCK::S(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).