MESON Chess Problem Database

Problem Display
PID: 93841 (B7/8/3PP1PP/4pk2/7B/8/8/K6Q w - - 0 1)

Mazel, Eduard

Ceske listy sachove, 1896

B7/8/3PP1PP/4pk2/7B/8/8/K6Q

#2

8 + 2

6490 yacpdb 2009
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Qf3#
      • 2.Qe4#
    • 1...e4
      • 2.Qxe4#
  • Tries
    • 1.Bd8?
      • 1...Kf4
        • 2.Qf3#
      • 1...Kg4
        • 2.Qf3#
      • 1...Kxg6
        • 2.Be4#
      • 1...e4
        • 2.Qxe4#
      • 1...Kxe6!
    • 1.Qg2?
      • 1...Kf4
        • 2.Qf3#
        • 2.Qe4#
        • 2.Qg5#
      • 1...e4
        • 2.Qxe4#
      • 1...Kxe6!
    • 1.Qh3+?
      • 1...Kf4
        • 2.Qf3#
      • 1...Kxg6!
  • Keys
    • 1.Be7!
      • 1...Kf4
        • 2.Qf3#
      • 1...Kg4
        • 2.Qf3#
      • 1...Kxe6
        • 2.Qh3#
      • 1...Kxg6
        • 2.Be4#
      • 1...e4
        • 2.Qxe4#

This anticipates 194217(1917)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(a);::QAB1(B),XP(a)
  • Tries
    • Try
      • B(C);
      • Vars
        • K(b);P-FLIGHT::QAR1(B)
        • K(b);S_FLIGHT::QAB1(B)
        • K(b);S_FLIGHT,XP(F)::B(H)
        • P(a);::QAB1(B),XP(a)
      • Refutation
        • K(b);S_FLIGHT,XP(E)
    • Try
      • Q(B);
      • Vars
        • P(a);::QAB1(B),XP(a)
      • Refutation
        • K(b);S_FLIGHT,XP(E)
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT,XP(F)
  • Actual
    • B(C);
    • Vars
      • K(b);P-FLIGHT::QAR1(B)
      • K(b);S_FLIGHT::QAB1(B)
      • K(b);S_FLIGHT,XP(E)::QAB(B)
      • K(b);S_FLIGHT,XP(F)::B(H)
      • P(a);::QAB1(B),XP(a)
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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).