MESON Chess Problem Database

Problem Display
PID: 10574 (5K2/5B1b/4Q3/6k1/8/8/7B/8 w - - 0 1)

Axt, Hermann

Wormser Zeitung, 1965

5K2/5B1b/4Q3/6k1/8/8/7B/8

#2

4 + 2

3295 Einfuhrung in die Welt des Schachproblem 1984
5454 Near Snap 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qd5+?
      • 1...Kg4
        • 2.Qh5#
      • 1...Kh4
        • 2.Qh5#
      • 1...Kf6
        • 2.Qe5#
      • 1...Kh6
        • 2.Bf4#
        • 2.Qd2#
        • 2.Qh5#
      • 1...Bf5!
    • 1.Qe3+?
      • 1...Kh4
        • 2.Qg3#
      • 1...Kf5
        • 2.Qf4#
      • 1...Kf6
        • 2.Qe5#
      • 1...Kg4!
    • 1.Qe5+?
      • 1...Kg4
        • 2.Qh5#
      • 1...Kh4
        • 2.Qg3#
        • 2.Qh5#
      • 1...Kh6
        • 2.Bf4#
        • 2.Qf4#
        • 2.Qg7#
        • 2.Qe3#
        • 2.Qh5#
      • 1...Bf5!
    • 1.Qg6+?
      • 1...Kh4
        • 2.Qh5#
        • 2.Qg3#
      • 1...Bxg6!
  • Keys
    • 1.Qh6+!
      • 1...Kg4
        • 2.Qh5#
      • 1...Kf5
        • 2.Qf4#
      • 1...Kxh6
        • 2.Bf4#

Anticipated by 44109(0000)

This anticipates 225185(1989)

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(B)
        • K(a);OGATE,S_FLIGHT::QAR1(B)
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • B(b);P_SPINB(b)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(B)
      • Refutation
        • B(b);P_SPINB(b)
    • Try
      • Q(B);CHECK
      • Refutation
        • B(b);XQ(B)
  • Actual
    • Q(B);CHECK
    • Vars
      • K(a);P-FLIGHT::QAB1(B)
      • K(a);OGATE,P-FLIGHT::QAR1(B)
      • K(a);S_FLIGHT,XQ(B)::B(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).