MESON Chess Problem Database

Problem Display
PID: 225476 (4B3/8/8/Q3p3/4K3/8/Pp6/qk6 w - - 0 1)

Gajan, Jozef

Praca, 1947

4B3/8/8/Q3p3/4K3/8/Pp6/qk6

#2

4 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Kd3?
      • 1...Kc1
        • 2.Qe1#
      • 1...Qxa2
        • 2.Qe1#
      • 1...e4+!
    • 1.Qe1+?
      • 1...Kc2
        • 2.Ba4#
      • 1...Kxa2!
    • 1.Qd2?
      • 1...Qxa2
        • 2.Qd1#
      • 1...Kxa2!
    • 1.Qa4?
      • 1...Qxa2
        • 2.Qd1#
      • 1...Kc1!
  • Keys
    • 1.Ba4!
      • 1...Kc1
        • 2.Qe1#
      • 1...Kxa2
        • 2.Bc2#
      • 1...Qxa2
        • 2.Qe1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(b);P-FLIGHT::QAR2(C)
        • Q(a);SBLOCK,XP(A)::QAR(C)
      • Refutation
        • P(d);CHECK
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT::B(D)
      • Refutation
        • K(b);S_FLIGHT,XP(A)
    • Try
      • Q(C);
      • Vars
        • Q(a);SBLOCK,XP(A)::QAR2(C)
      • Refutation
        • K(b);P_SPINP(c),S_FLIGHT,XP(A)
    • Try
      • Q(C);
      • Vars
        • Q(a);SBLOCK,XP(A)::QAR2(C)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • B(D);
    • Vars
      • K(b);P-FLIGHT::QAR2(C)
      • K(b);S_FLIGHT,XP(A)::QAR(C)+B(D)
      • Q(a);SBLOCK,XP(A)::QAR(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).