MESON Chess Problem Database

Problem Display
PID: 70972 (2K5/8/2p1N1B1/8/2k5/8/1Q3P2/8 w - - 0 1)

Speckmann, Werner

Neue Zurcher Zeitung, 1961

2K5/8/2p1N1B1/8/2k5/8/1Q3P2/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Kd7?
      • 1...Kd5
        • 2.Qd4#
      • 1...c5!
    • 1.Sf4?
      • 1...c5
        • 2.Bd3#
        • 2.Bf7#
      • 1...Kc5!
    • 1.Bf5?
      • 1...Kd5
        • 2.Qd4#
      • 1...c5!
  • Keys
    • 1.Bf7!
      • 1...Kd3
        • 2.Sc5#
      • 1...Kd5
        • 2.Qd4#
      • 1...c5
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • S(C);
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • P(b);
  • Actual
    • B(D);
    • Vars
      • K(a);S_FLIGHT::S(C)
      • K(a);S_FLIGHT::QAR1(A)
      • P(b);SBLOCK::B(D)+S(C)
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