MESON Chess Problem Database

Problem Display
PID: 40229 (8/8/4N3/4PB2/5B2/5k2/8/4K2R w K - 0 1)

Froberg, Johan Hilding Laurentius

Schach-Echo, 1940

8/8/4N3/4PB2/5B2/5k2/8/4K2R

#2

6 + 1

3295 Einfuhrung in die Welt des Schachproblem 1984
4198 Wolfgang Pauly Challenge of a Legacy 2001
136 Problem Observer 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kg2
      • 2.Be4#
  • Tries
    • 1.Sd4+?
      • 1...Kg2
        • 2.Be4#
      • 1...Kxf4!
    • 1.Sc5?
      • 1...Kg2
        • 2.Be4#
      • 1...Kxf4!
    • 1.Sg5+?
      • 1...Kg2
        • 2.Be4#
      • 1...Kxf4!
    • 1.Sc7?
      • 1...Kg2
        • 2.Be4#
      • 1...Kxf4!
    • 1.Sg7?
      • 1...Kg2
        • 2.Be4#
      • 1...Kxf4!
    • 1.Sd8?
      • 1...Kg2
        • 2.Be4#
      • 1...Kxf4!
    • 1.Sf8?
      • 1...Kg2
        • 2.Be4#
      • 1...Kxf4!
    • 1.Bb1?
      • 1...Kg2
        • 2.Be4#
      • 1...Kg4!
    • 1.Bc2?
      • 1...Kg2
        • 2.Be4#
      • 1...Kg4!
    • 1.Bd3?
      • 1...Kg2
        • 2.Be4#
      • 1...Kg4!
    • 1.Bg6?
      • 1...Kg2
        • 2.Be4#
      • 1...Kg4!
    • 1.Bh7?
      • 1...Kg2
        • 2.Be4#
      • 1...Kg4!
  • Keys
    • 1.0-0+!
      • 1...Ke2
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(a);S_FLIGHT::B(E)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
    • Try
      • S(F);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
    • Try
      • S(F);CHECK
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
    • Try
      • S(F);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
    • Try
      • S(F);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
    • Try
      • S(F);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
    • Try
      • S(F);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(A);0-0,CHECK
    • Vars
      • K(a);S_FLIGHT::S(F)
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