MESON Chess Problem Database

Problem Display
PID: 254482 (8/2K5/2RN4/3pk1B1/8/8/B7/8 w - - 0 1)

Binkert, Otto Friedrich

Die Schwalbe, 1930

8/2K5/2RN4/3pk1B1/8/8/B7/8

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...d4
      • 2.Rc5#
  • Tries
    • 1.Kd7?
      • 1...d4
        • 2.Rc5#
      • 1...Kd4!
    • 1.Rc1?
      • 1...Ke6
        • 2.Re1#
      • 1...d4
        • 2.Re1#
        • 2.Rc5#
      • 1...Kd4!
    • 1.Rc2?
      • 1...Ke6
        • 2.Re2#
      • 1...d4
        • 2.Re2#
        • 2.Rc5#
      • 1...Kd4!
    • 1.Rc4?
      • 1...Ke6
        • 2.Re4#
      • 1...d4
        • 2.Rc5#
      • 1...dxc4!
  • Keys
    • 1.Rc3!
      • 1...Kd4
        • 2.Bf6#
      • 1...Ke6
        • 2.Re3#
      • 1...d4
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATEB,SBLOCK::R(C)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Vars
        • P(a);OGATEB,SBLOCK::R(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(b);N_GUARD,P-FLIGHT,P_SPINP(a)::R(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(b);N_GUARD,P-FLIGHT,P_SPINP(a)::R(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(b);P-FLIGHT,S_CUTP(a)::R(C)
        • P(a);OGATEB,SBLOCK::R(C)
      • Refutation
        • P(a);XR(C)
  • Actual
    • R(C);
    • Vars
      • K(b);N_GUARD,S_FLIGHT::B(B)
      • K(b);N_GUARD,P-FLIGHT,P_SPINP(a)::R(C)
      • P(a);OGATEB,SBLOCK::R(C)
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