MESON Chess Problem Database

Problem Display
PID: 201574 (4B3/8/3pNQp1/3k4/2p4K/2P5/8/2n5 w - - 0 1)

Bachtikova, M

Ceskoslovenska republika, 1922

4B3/8/3pNQp1/3k4/2p4K/2P5/8/2n5

#2

5 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sf4+?
      • 1...Kc5
        • 2.Qd4#
      • 1...Ke4!
    • 1.Sc7+?
      • 1...Kc5
        • 2.Qd4#
        • 2.Qf2#
      • 1...Ke4!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Qd4#
        • 2.Qg5#
      • 1...g5+
        • 2.Qxg5#
      • 1...Kxc5
        • 2.Qd4#
      • 1...dxc5
        • 2.Bc6#
      • 1...Se2
        • 2.Qg5#
      • 1...Sb3
        • 2.Qg5#
      • 1...Sd3
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB1(D)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(C);CHECK
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(C);
    • Threat
      • DUALS(2)
    • Vars
      • P(e);CHECK::QAR(D),XP(e)
      • K(c);P-FLIGHT,XS(C)::QAB1(D)
      • P(d);SBLOCK,XS(C)::B(E)
      • S(a);::QAR(D)
      • S(a);::QAR1(D)
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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).