MESON Chess Problem Database

Problem Display
PID: 19149 (8/8/p1N5/P7/k1K5/2b5/2P5/1N1B4 w - - 0 1)

Persson, Hol Holger

Mora Tidning, 1933

8/8/p1N5/P7/k1K5/2b5/2P5/1N1B4

#2

6 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Ba1
      • 2.c3#
    • 1...Be1
      • 2.c3#
    • 1...Bb2
      • 2.c3#
    • 1...Bd2
      • 2.c3#
    • 1...Bb4
      • 2.c3#
    • 1...Bd4
      • 2.c3#
    • 1...Bxa5
      • 2.c3#
    • 1...Be5
      • 2.c3#
    • 1...Bf6
      • 2.c3#
    • 1...Bg7
      • 2.c3#
    • 1...Bh8
      • 2.c3#
  • Tries
    • 1.Kd3?
      • 1...Bxa5
        • 2.c4#
      • 1...Ba1
        • 2.c4#
      • 1...Be1
        • 2.c4#
      • 1...Bb2
        • 2.c4#
      • 1...Bd2
        • 2.c4#
      • 1...Bb4
        • 2.c4#
      • 1...Bd4
        • 2.c4#
      • 1...Be5
        • 2.c4#
      • 1...Bf6
        • 2.c4#
      • 1...Bg7
        • 2.c4#
      • 1...Bh8
        • 2.c4#
      • 1...Kb5!
  • Keys
    • 1.Kd5!
      • 1...Kb5
        • 2.Sxc3#
      • 1...Bxa5
        • 2.c4#
      • 1...Ba1
        • 2.c4#
      • 1...Be1
        • 2.c4#
      • 1...Bb2
        • 2.c4#
      • 1...Bd2
        • 2.c4#
      • 1...Bb4
        • 2.c4#
      • 1...Bd4
        • 2.c4#
      • 1...Be5
        • 2.c4#
      • 1...Bf6
        • 2.c4#
      • 1...Bg7
        • 2.c4#
      • 1...Bh8
        • 2.c4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 11
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATE::B(B)+P(C)
    • B(a);OGATE,XP(E)::B(B)+P(C)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • B(a);OGATE,XP(E)::B(B)+P(C)
        • B(a);OGATE::B(B)+P(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • K(D);S_FLIGHT
    • Vars
      • K(b);S_FLIGHT::S(A),XB(a)
      • B(a);OGATE,XP(E)::B(B)+P(C)
      • B(a);OGATE::B(B)+P(C)
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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).