MESON Chess Problem Database

Problem Display
PID: 24114 (5B2/5p1B/8/6k1/4p3/4K2Q/8/8 w - - 0 1)

Asplund, Per Ivan Rune

2nd Prize, Norsk Vanforetidsskrift, 1954

5B2/5p1B/8/6k1/4p3/4K2Q/8/8

#2

4 + 3

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Qf5#
    • 1...f5
      • 2.Be7#
    • 1...f6
      • 2.Bh6#
  • Tries
    • 1.Kxe4?
      • 1...Kf6
        • 2.Qf5#
        • 2.Qh6#
      • 1...f6
        • 2.Bh6#
      • 1...f5+!
    • 1.Bxe4?
      • 1...Kf6
        • 2.Qf5#
      • 1...f6
        • 2.Bh6#
      • 1...f5!
    • 1.Bf5?
      • 1...f6
        • 2.Bh6#
        • 2.Qg4#
      • 1...Kf6!
    • 1.Bg7?
      • 1...f6
        • 2.Bh6#
      • 1...f5!
    • 1.Qg4+?
      • 1...Kf6
        • 2.Qf5#
      • 1...Kxg4!
    • 1.Qh5+?
      • 1...Kf6
        • 2.Qf5#
      • 1...Kxh5!
  • Keys
    • 1.Bd6!
      • 1...Kf6
        • 2.Qh6#
      • 1...f5
        • 2.Be7#
      • 1...f6
        • 2.Bf4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAR1(B)
    • P(c);N_GUARD::B(D)
    • P(c);SBLOCK::B(D)
  • Tries
    • Try
      • K(A);P-FLIGHT,XP(a)
      • Vars
        • P(c);SBLOCK::B(D)
      • Refutation
        • P(c);CHECK
    • Try
      • B(C);XP(a)
      • Vars
        • K(b);S_FLIGHT::QAR1(B)
        • P(c);SBLOCK::B(D)
      • Refutation
        • P(c);
    • Try
      • B(C);
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • P(c);SBLOCK::B(D)
      • Refutation
        • P(c);
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT,XQ(B)
  • Actual
    • B(D);
    • Vars
      • K(b);S_FLIGHT::QAR2(B)
      • P(c);N_GUARD::B(D)
      • P(c);SBLOCK::B(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).